Pilot’s Guide Stormscope

®

Series II Weather Mapping System

Pilot’s Guidefor the

Model WX-1000

StormscopeSeries II Weather Mapping System


Model WX-1000

Stormscope®

A Stormscope® WX-1000 Pilot’s GuideA

Stormscope® System Advantages

WelcomeL-3 Avionics Systems, one of the world’s most experiencedcompanies in airborne thunderstorm avoidance instru-ments, is pleased to welcome you to the family of tens ofthousands of pilots who are enjoying the benefits of saferflight with a Stormscope® weather mapping system.

The OriginalDon’t be fooled by Stormscope system look-alikes. There isonly one Stormscope system, and only one company thatmakes the Stormscope line of weather mapping systems.The Stormscope system, the original, most accurate weathermapping system is manufactured by L-3 Avionics Systems.

Fly with Greater ConfidenceYou now own one of the leading instruments in the worldfor airborne detection and mapping of thunderstorms.Unlike any other product, your new Stormscope systemwill enable you to make better informed thunderstormavoidance decisions so you can fly more safely and withgreater confidence than ever before.

Convenient FeaturesThe advanced, patented technology in your new Stormscopesystem was developed over many years and is so unique,so revolutionary, it surpasses all others. Here are some ofits features:

• Maps electrical discharges

• Operates in 25, 50, 100, and 200 nmi ranges

• Provides a 120° forward view and a 360° view of thesurrounding airspace

• Uses a high resolution 3-inch ATI CRT display

• Provides expansion capability for heading stabilization,navaid, and EFIS options as described in this guide

© Copyright 2000, 2004, 2007L-3 Communications Avionics Systems, Inc.

Stormscope® is a registered trademark of L-3 Communications Avionics Systems, Inc.The white L3 in a circle design logo is a trademark of L-3 Communications Corporation.

Designed and manufactured in the United States of America by

Methods and apparatus disclosed and described herein have been developed solely on company fundsof L-3 Communications Avionics Systems, Inc. No government or other contractual support or rela-tionship whatsoever has existed which in any way affects or mitigates proprietary rights of L-3 Commu-nications Avionics Systems, Inc. in these developments. Methods and apparatus disclosed herein maybe subject to U.S. Patents existing or applied for. L-3 Communications Avionics Systems, Inc. reservesthe right to add, improve, modify, or withdraw functions, design modifications, or products at any timewithout notice.

Series II Weather Mapping System


Model WX-1000

Stormscope®

L-3 Communications Avionics Systems, Inc.5353 52nd Street, S.E.Grand Rapids, MI 49512 USA(800)253-9525 or (616)949-6600Fax (616)285-4224www.L-3com.com/as

Safety SummaryThese warnings and cautions appear later in this guideand are repeated here for emphasis:

Never use your Stormscope system to attempt to penetrate athunderstorm. The FAA Advisory Circular, Subject: Thunder-storms, and the Airman’s Information Manual (AIM) recom-mend that you “avoid by at least 20 miles any thunderstormidentified as severe or giving an intense radar echo.”

Even a single discharge point may represent thunderstormactivity and should be avoided.page 4-1

page 4-1

WARNING

CAUTION

A Stormscope® WX-1000 Pilot’s Guideii

Important NoticeThis guide provides general information about theoperation of the WX-1000. This guide does not cover allpossible interconnections with all possible types andnumbers of alternate displays and customer-suppliedswitches. Refer to your aircraft flight manual and flightmanual supplement for information specific to youraircraft. If there is conflicting information between thosemanuals and this pilot’s guide, your aircraft flight manualand flight manual supplement take precedence over thispilot’s guide.

Revision HighlightsThis revision E of the pilot’s guide makes the followingchanges:

• Move export statement to back page.

• Corrects minor typographical errors.

Revision D of the pilot’s guide made the followingchanges:

• Changes occurrences of “Goodrich Avionics Systems” to“L-3 Communications Avionics Systems, Inc.” or just “L-3Avionics Systems” and makes related company contactinformation changes. (On March 28, 2003, GoodrichCorporation sold its Avionics Systems division to L-3Communications Corporation.)

• Eliminates the Warranty Information chapter. Warrantyinformation is now provided on a separate warranty card.

• Adds new processor part numbers to table 5-1.

• Corrects operating temperature ranges in tables 5-1 & 5-3.

• Increases typeface size and adds more white space.

Stormscope® WX-1000 Pilot’s Guide iii

Section Page

List of Illustrations ..............................vi

List of Tables ..................................... vii

Chapter 1, System Description ........... 1-1General Description ............................................................... 1-1Processor ............................................................................... 1-2Antenna ................................................................................. 1-2Display .................................................................................. 1-2Functional Description .......................................................... 1-2Model Definitions .................................................................. 1-4Features ................................................................................. 1-6

Chapter 2, Storm Mapping Principles .. 2-1Anatomy of a Thunderstorm................................................... 2-1Stages of a Thunderstorm ....................................................... 2-3Storm Mapping Technology .................................................... 2-4

Chapter 3, Operation ........................ 3-1Introduction .......................................................................... 3-1Controls & Screen Elements ................................................... 3-1Turn On the WX-1000 ........................................................... 3-3Adjust the Screen Brightness ................................................... 3-4Switch to a Weather View ....................................................... 3-5Select the Range ..................................................................... 3-5Clear All Discharge Points ...................................................... 3-6Check the Status of the Continuous Self Test ........................... 3-7Run the Operator-Initiated Self Test ........................................ 3-7Use the Checklist Feature ....................................................... 3-8Set the Date and Time .......................................................... 3-11Time an Event ...................................................................... 3-11Measure Elapsed Time ......................................................... 3-12Turn Off the WX-1000 ......................................................... 3-13Error Messages .................................................................... 3-13

Table of Contents

Stormscope® WX-1000 Pilot’s Guide v

Section PageTable of Contents (continued)

Chapter 4, Weather Display Interpretation . 4-1Introduction .......................................................................... 4-1Typical Patterns ...................................................................... 4-2Mapping Headings Past Thunderstorms.................................. 4-4Special Patterns ...................................................................... 4-6

Chapter 5, Specifications .................. 5-1

Appendix A, Heading Stabilization Option. A-1Applicable Models ................................................................. A-1General Description .............................................................. A-1Heading Options .................................................................. A-2Heading Error Message ......................................................... A-3

Appendix B, Navaid Option ................. B-1Applicable Models .................................................................. B-1General Description ............................................................... B-1Main Menu ........................................................................... B-3Navaid Setup Screen .............................................................. B-3Data Comm Errors ................................................................ B-6Warning Message ................................................................... B-6NAV FLAG ........................................................................... B-6

Appendix C, EFIS Option .................... C-1Applicable Models ................................................................. C-1General Description .............................................................. C-1EFIS Thunderstorm Symbology ............................................. C-1

Stormscope® WX-1000 Pilot’s Guidevi

List of IllustrationsFigure Title Page

1-1 WX-1000 Major Components ...................................................... 1-11-2 Display With 360° View ................................................................ 1-31-3 Display With 120° View ................................................................ 1-31-4 WX-1000 Functional Diagram ...................................................... 1-3

2-1 Electrical Discharges in Thunderstorms ......................................... 2-12-2 Discharge Rate a Function of Wind Shear ..................................... 2-2

3-1 Controls & Screen Elements .......................................................... 3-13-2 System Test in Progress .................................................................. 3-33-3 All Tests Are OK ............................................................................ 3-43-4 MAIN MENU Screen .................................................................. 3-43-5 360° Weather View ....................................................................... 3-53-6 120° Weather View ....................................................................... 3-53-7 OPTIONS Screen ........................................................................ 3-73-8 WX-1000 Checklist Worksheet Sample ......................................... 3-83-9 CHECKLIST MENU Screen ....................................................... 3-93-10 A Checklist Screen ...................................................................... 3-103-11 Skipped Item .............................................................................. 3-103-12 Skipped Items ............................................................................. 3-103-13 TIME/DATE Screen .................................................................. 3-113-14 Error 01 ...................................................................................... 3-133-15 Error 44 ...................................................................................... 3-143-16 Error 46 ...................................................................................... 3-153-17 Mic Key Stuck ............................................................................ 3-15

4-1 Airspace Diagram ......................................................................... 4-14-2 Three Clusters Within 200 nmi ..................................................... 4-34-3 Range Changed to 100 nmi ........................................................... 4-34-4 Two Clusters Within 200 nmi ........................................................ 4-34-5 Range Set at 200 nmi .................................................................... 4-54-6 Aircraft Progresses 100 nmi .......................................................... 4-54-7 Range Changes to 100 nmi ............................................................ 4-54-8 Aircraft Turns to Avoid Thunderstorms .......................................... 4-54-9 Randomly Scattered Discharge Points ........................................... 4-64-10 Cluster and Splattering Within 25 nmi ........................................... 4-64-11 Discharge Points Off the Aircraft’s Nose ........................................ 4-7

Stormscope® WX-1000 Pilot’s Guide vii

5-1 WX-1000 Processor Specifications ................................................ 5-15-2 WX-1000 Display Specifications ................................................... 5-35-3 WX-1000 Antenna Specifications .................................................. 5-4

B-1 Navaid Data Item Abbreviations .................................................. B-4

Table Title PageList of Tables

4-12 Line of Discharge Points While Taxiing .......................................... 4-74-13 Developing Cluster Within 25 nmi ................................................ 4-84-14 Split Image Off Nose of Aircraft .................................................... 4-8

A-1 Heading Display at Top of Screen ................................................. A-2A-2 Heading Flag at Top of Screen ...................................................... A-2A-3 OPTIONS Screen With Heading Stabilization ............................. A-3A-4 Error 11 ....................................................................................... A-3

B-1 Typical Weather View Screen With the Navaid Option.................. B-2B-2 MAIN MENU w/Navaid ............................................................ B-3B-3 OPTIONS Screen w/Navaid ....................................................... B-3B-4 Navaid Setup Screen .................................................................... B-3B-5 Error 13 ....................................................................................... B-6B-6 Warning Messages ....................................................................... B-6B-7 NAV FLAG ................................................................................. B-6

Figure Title PageList of Illustrations (continued)

Stormscope® WX-1000 Pilot’s Guideviii

1-1Stormscope® WX-1000 Pilot’s Guide 1-1

General DescriptionThe Stormscope® Series II Weather Mapping System, modelWX-1000 (figure 1-1) detects electrical discharges fromthunderstorms up to 200 nautical miles away and displaysthe thunderstorm locations relative to your aircraft. TheWX-1000 also provides checklists and timing functions.

Figure 1-1. WX-1000 Major Components

Processor

Antenna

Display

System DescriptionC h a p t e r 1

Stormscope® WX-1000 Pilot’s Guide1-2

Chapter 1 – System Description

The WX-1000 is a passive system so there is no transmitterand no harmful transmissions. The system operates as wellon the ground as in the air, thereby giving the pilot impor-tant planning information before takeoff.

ProcessorThis compact, tray-mounted computer processor receiveselectrical discharge information from the antenna, processesit to determine range and azimuth, then forwards theinformation for presentation on the cockpit display. Theprocessor may be installed almost anywhere in the aircraft.

AntennaThis combined loop and sense antenna is sealed in anaerodynamic flat-pack and mounted on the outside of theaircraft where it detects electrical discharges associated withthunderstorms. The antenna is available in black or white.

DisplayThe display (figures 1-2 and 1-3) is a self-contained, 3-ATI-sized unit with a high resolution, green monochromeCathode Ray Tube (CRT) display. The bezel contains fourmomentary contact push-button switches and an on/off/brightness knob. The display provides control and displayfunctions for the processor. The display’s bezel is available inblack or gray. The display is not required if you have theEFIS option. (See appendix C.)

Functional DescriptionFigure 1-4 and the following paragraphs describe how themajor components of the WX-1000 connect to each otherand to other aircraft systems.

The antenna detects the electric and magnetic fields gener-ated by intra-cloud, inter-cloud, or cloud-to-ground electri-cal discharges that occur within a 200 nmi radius of theaircraft and sends the resulting “discharge signals” to theprocessor. The processor digitizes, analyzes, and converts the

Major Components



Figure 1-2. Display With 360°

MENU

CLEAR

120 °

25

200 nm

BRTOFF

MENU

CLEAR

25

360 °

200 nm

BRTOFF

Figure 1-3. Display With 120°

Discharge Signals

Display Signals

Control Signals

Test StrikeControl

HeadingInput*

NavaidInput*

*Optional

DisplayOutput

to EFIS*

ProcessorFault Lineto EFIS*

±15 V dc±12 V dc

ExternalClearInput*

CommMic

Inhibit

MENU

CLEAR

120 °

25

+++++++++++++++++++++ +++++++++++++++++++++++++++++++

+++++++++++

+++++++++++++++++++++++++

200 nm

BRTOFF

Display

Stormscope® Model WX-1000

PowerInput

11–32 V dc

HeadingValid

Input*

Electromagnetic Signals Radiating fromAtmospheric Electrical DischargesAssociated with Thunderstorms

Processor

Antenna

Figure 1-4. WX-1000 Functional Diagram

Functional Description



discharge signals into range and bearing data then stores thedata in memory. The WX-1000 then displays discharges asstorm cells as described in the next paragraph.

The WX-1000 plots a “+” symbol (discharge point) on thedisplay when it detects associated discharges within theselected range and view. The processor will plot another “+”close to the first for each additional discharge determined tobe associated with the group. The processor will not plot a“+” for any discharge not associated with a group unless it’sdetected within a 25 nmi radius of the aircraft. The effect ofthis clustering algorithm is to display the location of stormcells instead of individual discharges. This “cell displaymode” is most useful during periods of heavy electricaldischarge activity and frees the pilot from sifting through ascreen full of discharge points to determine exactly wherethe storm cells are located.

Model DefinitionsThis guide covers all variations of the WX-1000 model aslisted below. Options only available on certain models aredescribed in appendices A, B, and C.

WX-1000WX-1000 is the base model

WX-1000+WX-1000+ is the base model plus heading stabilization toaccurately display discharge points relative to the “own aircraft”symbol in the middle of the screen as you make a turn.

WX-1000E (232/422 Navaid)This is the base model plus:

• Heading stabilization

• Display of navigation data from discrete inputs (RS232/RS422)

Model Definitions



WX-1000E (429 Navaid)This is the base model plus:


• Display of navigation data from ARINC 429 bus inputs

WX-1000E (429 EFIS)This is the base model plus:


• Display output to an EFIS display unit via ARINC 429bus outputs, or to a radar indicator via the L-3 RadarGraphics Computer (RGC). The EFIS display unit orRGC/radar indicator can be in place of the standardWX-1000 display, or in addition to the WX-1000 display.

“E” ModelsInstalling a 232/422 navaid option, a 429 navaid option, or a429 EFIS option into a WX-1000+ turns the system into aWX-1000E. Only one of the three options can be present atany given time inside the processor.

Determining the Unit’s Model Number & OptionsYou can determine your unit’s detailed model number andinstalled options by getting the part number from the tag onthe back of the processor and looking up the correspondingpart number definition in table 5-1. If you don’t have easyaccess to the rear of the processor, you can determine thegeneral model number and installed options by observingthe display as follows:

• If no heading is displayed at the top of the weatherscreens, then you probably have a WX-1000.

• If a heading is displayed at the top of the weatherscreens, but no graphical course deviation indicator isdisplayed near the bottom of the weather screens, thenyou have a WX-1000+.

• If a graphical course deviation indicator is displayednear the bottom of the weather screens, then you have aWX-1000E (232/422 Navaid), or a WX-1000E(429 Navaid).

Model Definitions



• If you have Stormscope options available on your EFISdisplay or on your weather radar indicator, then youhave a WX-1000E (429 EFIS).

This guide will hereafter use the term “WX-1000” to refer to allvariations of the WX-1000 model unless otherwise indicated.

Features• Four weather ranges: 25, 50, 100, and 200 nmi

• Two weather views: 120° forward view, and 360° view

• Three types of self test: power-up, continuous, and opera-tor-initiated

• Local and remote clear – allows operator to clear displayeddischarge points using a button on the front of the WX-1000 display or from a remotely-mounted “clear screen”button (not supplied)

• Mic inhibit – inhibits thunderstorm processing when thecommunications transmitter is keyed to prevent theprocessing of corrupted data (some aircraft need to use thisfeature, others don’t)

• Power/brightness control – allows operator to adjust the CRTbrightness and to turn the WX-1000 on and off

• Four buttons – these function keys perform variousfunctions depending on what mode the WX-1000 is in andwhat screen is being displayed. This variability allows forflexibility and future expansion.

• Cell display mode – allows you to view groups of dis-charges (cells)

• Six dealer-programmable checklists, each containing amaximum of 30 lines with up to 20 characters each

• Real-time digital clock display for time, day, and date

• Stopwatch timer function

• Elapsed time counter function

• Expandable – includes an expansion board slot for addingoptions such as heading stabilization, navaid display, &output to an EFIS (all options are described in the appendices)

Features


Anatomy of a ThunderstormThe WX-1000 is intended to help pilots avoid the dangersassociated with thunderstorms (convective wind shear,lightning, icing, tornadoes, etc.). The WX-1000 locatesthunderstorms by detecting the electrical discharges thatthunderstorms always generate. Figure 2-1 shows howthunderstorms create electrical discharges and radiateelectromagnetic signals.

a. The convective flow of air currents (warm air going upand cold air going down) leads to friction between theopposing air currents and wind shear in the spacebetween the opposing air currents. The closer togetherthe opposing air currents are, the greater the shearingforce of the air currents.

War

m A

ir M

ass

Cold A

ir Mass

War

m A

ir M

ass

Cold A

ir Mass

100 nmi

200 nmi

a bb c d

Figure 2-1. Electrical Discharges in Thunderstorms

Storm MappingPrinciples

C h a p t e r 2


Chapter 2 – Storm Mapping Principles

b.The friction between the opposing air currents causeselectrical charges in the area to separate. As positive (+)and negative (–) electrical charges are separated, theyaccumulate in masses of similar charges (positivecharges near the top of the cloud and negative chargesnear the bottom).

c. Electrical discharges occur as the accumulated massesof separated positive and negative charges attempt torejoin. These discharges continue to occur repetitivelyas long as the convective wind shear persists. A few ofthe discharges are visible as lightning, but most electri-cal discharges occur within a cloud or between cloudsand are hidden by those clouds. Only a small percent-age of discharges occurs between the clouds and theground. Cloud to ground lightning occurs when thenegatively charged lower part of a cloud induces apositive charge on an object on the ground. Theimmense charge separation finally breaks down theinsulating air and a discharge occurs dumping negativecharge from the cloud onto the object and the sur-rounding ground.

d.All electrical discharges radiate electromagnetic signalsin all directions close to the speed of light. The electro-magnetic signals have unique characteristics andvarying rates of recurrence and signal strength.

Figure 2-2 shows that the rate of electrical discharges de-tected in an area is directly related to the amount of convec-

Light ModerateIncreasing Turbulence Due to Convective Wind Shear

Incr

easi

ng R

ate

ofE

lect

rica

l Dis

char

ges

Severe

Figure 2-2. Discharge Rate a Function of Wind Shear

Anatomy of a Thunderstorm



tive wind shear turbulence present. In fact, as convective windshear increases, the rate of electrical discharges increases at anincreasing rate. This relationship means that if you find theelectrical discharges, you’ve found the wind shear.

Stages of a ThunderstormAll thunderstorms begin as cumulus clouds, build to anintense mature stage, and finally dissipate. Each of thesestages in the life of a thunderstorm present a different set ofdangers to aircraft. The WX-1000 maps all stages in the lifeof a thunderstorm so that you won’t be caught unaware by athunderstorm that can build, mature, and dissipate in aslittle as 20 minutes.

Cumulus StageThe cumulus or beginning stage of a thunderstorm is usuallyprecipitation free. In this stage, the risks to an aircraft andits occupants include strong vertical winds, severe turbu-lence, icing, and convective wind shear.

Mature StageIn the mature and most intense stage of a thunderstorm, thewater droplets within the cloud collide and combine to formrain and hail and, at cooler temperatures, sleet and snow. Thisstage poses many hazards to aircraft including heavy precipita-tion, high winds, convective wind shear, severe turbulence,downbursts, hail, icing, tornadoes, and lightning.

Dissipating StageIn the dissipating stage, the updraft weakens and at the sametime, the convective wind shear and other hazardous condi-tions begin to subside. There may be high rainfall rates inthis stage, but the severe dangers are diminishing.

Stages of a Thunderstorm



Storm Mapping TechnologyThe WX-1000 & Weather Radar

The storm mapping technology used in the WX-1000 isfundamentally different than the technology used in weatherradar. Weather radar operates by transmitting UHF radiowaves in the direction of interest and then receiving echoesfrom water droplets, whereas the WX-1000 operates byreceiving signals already present in the atmosphere due toelectrical discharges. The WX-1000 analyzes the uniquecharacteristics of these signals, their signal strength, andtheir varying rates of recurrence to determine the locationand intensity of the thunderstorms that generated thedischarges. The WX-1000 can receive radiated electromag-netic signals from electrical discharges up to 200 nmi away.

One disadvantage of weather radar is that the cumulus stageof a thunderstorm (usually precipitation free) is unlikely toappear on weather radar; however, it generally does containelectrical discharges which will appear on your WX-1000display as a light but increasing cluster of discharge points.

Another disadvantage of weather radar is that due to attenu-ation, it may not see the “storm behind the storm” or mayunderstate its intensity. Your WX-1000 is not subject toattenuation. With the WX-1000, electrical discharges aremapped throughout the storm area. The size of the cluster ofdischarge points on your WX-1000 indicates the size of thestorm area. The speed with which the discharge pointsappear indicates the intensity of the storm regardless of thesize of the cluster. The more intense the storm, the faster thedischarge points reappear.

Automatic UpdatingThe WX-1000 receives and processes electrical dischargeinformation continuously and updates the screen as needed,which may be many times every second. Even though theelectromagnetic signals from electrical discharges are of veryshort duration, the WX-1000 stores the resulting dischargepoints in memory and displays each point for a maximum of 2minutes before it is erased from the screen and from memory.

Storm Mapping Technology



In the 360° view, the WX-1000 can store and display 512discharge points within the selected range. In the 120° view,the WX-1000 can store and display 256 discharge points withinthe selected range. When the number of electrical dischargesexceeds the maximum displayable capacity in a given viewwithin a 2-minute interval, the oldest discharge point inmemory and on the screen in that view is erased and replacedwith the newest discharge point. This process continues toreplace old discharge points with new ones to make sure thatdischarge points on the screen represent the most recentelectrical discharges. In a typical thunderstorm, all thepoints on the screen may be replaced with new points every1 to 2 minutes. In a severe thunderstorm, the display may becompletely updated every 30 to 60 seconds.

Storm Mapping Technology


IntroductionThis chapter describes the WX-1000’s controls and screenelements, and then lists the operating instructions and errormessages. Refer to the appendices for descriptions andinstructions for options such as heading stabilization, navaiddisplay, and display on an EFIS.

Controls & Screen ElementsFigure 3-1 and the following paragraphs describe the WX-1000’s controls and major screen elements. The WX-1000 alsoprovides connections for a remote switch that clears dis-charge points from the screen.

Figure 3-1. Controls & Screen Elements

MENU

CLEAR

120 °

25

200 nm

BRTOFF

Outer RangeRing

Power/BrightnessControl

AzimuthMarker

DischargePoint

Own Aircraft

Inner RangeRing (25nmi)

ButtonLabels

DisplaysMainMenu

ClearsDischarge

Points

ChangesDisplayRange

Switchesto 120°

View

OperationC h a p t e r 3


Chapter 3 – Operation

Outer Range Ring The outer range ringidentifies the outer boundary of the currentrange. In the 360° view, the outer range ringis made up of 9 arcs spaced 30° apart along acircle centered on the aircraft symbol. In the120° view, the outer range ring is made up of2 arcs each spaced 30° on either side of theaircraft heading along a circle centered on theaircraft symbol. If the range is set to 25 nmiin either view, the outer range ring is a solidring instead of arcs. The numerical value of theradius of the outer range ring is displayed in therange indicator at the bottom of the screen.

Power/Brightness Control (OFF/BRT)Rotating this knob clockwise turns on the WX-1000and increases the brightness of the display. Rotatingthis knob counterclockwise decreases the brightnessof the display and turns off the WX-1000 when theknob reaches its fully counterclockwise position.

25 nmi Range Ring This solid ring isdisplayed on every range of both weather views tokeep you informed of any thunderstorm activitywithin a 25 nmi radius of your aircraft.

Display Range Indicator This buttonlabel/indicator displays the numerical value ofthe current range displayed on the screen. Thisvalue corresponds to the distance from theaircraft to the outer range ring. The possibili-ties are 25, 50, 100, and 200 nmi.

Buttons The four gray buttons protruding fromthe bottom half of the bezel are momentary contactswitches. The WX-1000 assigns them differentfunctions depending on which screen and optionsare currently active.

Own Aircraft Symbol This symbol indicatesthe location and heading of your aircraft relativeto the thunderstorm activity.

25

200 nm

Controls & Screen Elements



Discharge Points The position of these +symbols indicates the azimuth and range of thedetected electrical discharge activity relative to youraircraft. Discharge points sometimes overlap toform clusters. A large cluster indicates that thethunderstorm covers a large area. A dense clusterindicates an intense thunderstorm. The size of thedischarge points increases as the selected rangedecreases in order to enhance the storm clusteringeffect on the shorter ranges. The latest dischargepoints (none older than 2 minutes) are stored in memoryand displayed even if you switch ranges or views andthen switch back to the original range or view.

Azimuth Markers The azimuth markershelp to quantify the angular location of electri-cal discharges relative to the aircraft. In the 360°view, 9 short radial markers are spaced 30°apart around the outside of the outer rangering. In the 120° view, 4 azimuth markersradiate out from the aircraft symbol at 30°and 60° on either side of the aircraft heading.

Turn On the WX-10001. Rotate the OFF/BRT knob clockwise about 180°.

The switch clicks and the WX-1000 begins the power-upself test and displays the SELF-TEST screen (figure 3-2)with the messageSYSTEM TEST INPROGRESS. Thepower-up self testtakes about 15seconds to ensurethat all majorfunctions are operat-ing properly. Itemstested includeantenna reception,memory, micropro-cessor functions, andinstalled options.

+++++++++++++++++++++++++

Turn On the WX-1000

SELF-TEST

WX-1000

SYSTEM TEST

IN PROGRESS . . .

BRTOFF

Figure 3-2. System Test in Progress



If the WX-1000 detects no faults, the SELF-TEST screen(figure 3-3) displays the message ALL TESTS ARE OK.After a few seconds, the display switches to the MAINMENU screen (figure 3-4).

If the WX-1000 detects a fault, an error message is displayed.Refer to page 3-13 for more information on error messages.

The WX-1000 may complete its power-up self test before theCRT comes on. In this case, it is possible that the first screen yousee will be the MAIN MENU screen or an error message resultingfrom the self test.

Adjust the Screen Brightness1. Rotate the OFF/BRT knob clockwise to increase the bright-

ness of the display or counterclockwise to decrease thebrightness of the display.

Adjust the Screen Brightness

SELF-TEST

WX-1000

SYSTEM TEST

IN PROGRESS . . .

ALL TESTS ARE OK

BRTOFF

Figure 3-3. All Tests Are OK

STORMSCOPE

MAIN MENU

120°

GONEXT

360°

Time/Date

Options

Checklists

BRTOFF

Figure 3-4. MAIN MENU Screen

NOTE



Switch to a Weather ViewThe arrow symbol ( ) on screen (figures 3-5 and 3-6) andin the following step means “go to.”

1. On either weather view screen or on the MAIN MENUscreen (figure 3-4), press the 360° button to switch tothe 360° weather view, or press the 120° button toswitch to the 120° weather view.

When changing between views, the range remains constant,but since the 120° view provides an expanded view, thethunderstorm information is displayed in greater detail.

Select the Range1. Switch to one of the two weather views (figures 3-5 and 3-6).

2. Press the button next to the on-screen range indicator(the lower right button) repeatedly to step through theoperating ranges 200, 100, 50, and 25 nmi.

With each press of the range button, the screen changesto display the electrical discharge activity detectedwithin the new range. The range indicator will alsochange to display the numerical value of the new range(25, 50, 100, or 200 nmi). This new range correspondsto the distance from the aircraft to the outer range ringon the screen.

MENU

CLEAR

25

360 °

200 nm

BRTOFF

Figure 3-6. 120° Weather View

MENU

CLEAR

120 °

25

200 nm

BRTOFF

Figure 3-5. 360° Weather View

Switch to a Weather View



The WX-1000 stores electrical discharge information forall ranges simultaneously to provide you with aninstant, up-to-date display of electrical dischargeactivity when you select a new range.

As you move from one range to the next, the 25 nmirange is always indicated by a solid ring to advise you ofyour close proximity to thunderstorms. You may alsonotice that the discharge points are progressively larger onthe shorter ranges and smaller on the longer ranges. Thiseffect makes it easier to spot clusters of discharge pointsin any range.

Clear All Discharge PointsYou should clear the existing discharge points after everyheading change to ensure that any new discharge points arepositioned correctly with respect to the current heading. (Ifyou have the heading stabilization option installed andturned on [on the OPTIONS screen], you do not have topress the CLEAR button after every heading change. Seeappendix A for more information on the heading stabiliza-tion option.)

Clearing the discharge points periodically while you’remonitoring thunderstorms is also a good way to determine ifthe storm is building or dissipating. Discharge points in abuilding storm will reappear faster and in larger numbersafter you press the CLR button. Discharge points in adissipating storm will reappear slower and in smaller num-bers after you press the CLR button.

1. To clear all discharge points, first switch to one of the twoweather views (figures 3-5 and 3-6).

2. Press the button adjacent to the on-screen CLEAR buttonlabel (the lower left button).

All discharge points are erased from the screen and fromthe WX-1000 memory. The WX-1000 continues to plotany new discharge points on the cleared screen.

Clear All Discharge Points



Check the Status of the Continuous Self TestThe WX-1000 uses three types of self tests: the power-upself test, the continuous self test, and the operator-initiated self test. The continuous self test continuouslychecks for major component failures.

1. Press the MENU button to go to the MAIN MENU screen(figure 3-4).

2. Press the NEXT button repeatedly if necessary until “Options” is highlighted.

3. Press the GO button to view the OPTIONS screen (figure 3-7).

The Continuous Test item is listed as OK or FAULT.

Run the Operator-Initiated Self TestThe operator-initiated self test is more extensive than thecontinuous self test and is recommended to verify properoperation of the WX-1000 whenever thunderstorm activityis displayed.


2. Press the NEXT button repeatedly if necessary until “Options” is highlighted.

OPT I ONS

MENU

NEXT

Cont i nuous Test :

TEST

OK

BRTOFF

Figure 3-7. OPTIONS Screen

Self Tests



3. Press the GO button to view the OPTIONS screen (figure3-7).

4. Press the TEST button to run the operator-initiated selftest.

The WX-1000 switches to the SELF-TEST screen (figure3-2) and begins the self test. The SELF TEST screendisplays the message SYSTEM TEST IN PROGRESS… forthe duration of the test (between 5 and 10 seconds).

If the WX-1000 detects no faults, the SELF TEST screendisplays the message ALL TESTS ARE OK (figure 3-3).After a few seconds, the display switches back to theOPTIONS screen.

If the WX-1000 detects a fault, an error message is dis-played. Refer to page 3-13 for more information on errormessages. Once you’ve pressed any button to acknowl-edge the error message, the display switches back to theOPTIONS screen.

Use the Checklist FeatureBefore you can use the checklist feature, you must fill outchecklist worksheets (figure 3-8), then ask your Stormscopedealer to enter the checklists into your WX-1000 usingspecialized equipment. Keep a copy of the worksheets inyour aircraft at all times. Any time you want to changeyour checklists, have your dealer enter the changes.

WX - 1000/1000+ Checklist Worksheet78-8060-5815-8 (Rev. 01)

Stormscope®

Series II Weather Mapping Systems

Checklist No. Aircraft Registration No.

Title

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11

InstructionsUse this worksheet to specifydesired checklist items to beprogrammed by your dealer in your

Stormscope®

Series II WeatherMapping System, Model WX-1000or WX-1000+

1. Enter checklist number and titleat the top.

2. Enter aircraft registrationnumber.

3. Enter desired checklist items inthe order in which you wantthem entered (one item perline).

Figure 3-8. WX-1000 Checklist Worksheet Sample

Use the Checklist Feature



You can create as many as 6 separate checklists, eachcontaining a maximum of 30 lines, with a maximum of 20characters per line. It’s solely your responsibility to selectappropriate checklist items.

One of the following symbols appears in front of eachchecklist item:

• (Item not yet checked)

(Item checked)

(Item skipped)

The WX-1000 stores checklist status in memory so that ifyou exit checklist mode and come back later, you cancontinue where you left off.

To Use the Checklist Feature:1. Press the MENU button to go to the MAIN MENU screen

(figure 3-4).

2. Press the NEXT button repeatedly if necessary until the“Checklists” item is highlighted.

3. Press the GO button to view the CHECKLIST MENUscreen (figure 3-9).

4. Press the NEXT button repeatedly if necessary untilthe desired checklist title is highlighted.

CHECKL IST MENU

MENU

GONEXT

ENG I NE FA I LURE

ENG I NE RUN-UP

TAKEOFF

CRU ISE

LAND I NG

BEFORE LAND I NG

BRTOFF

Figure 3-9. CHECKLIST MENU Screen




5. Press the GO button to viewthe items in the selectedchecklist (figure 3-10).

The first unchecked item inthe checklist is highlighted.

6. After you accomplish theselected checklist item, pressthe CHECK button.

The list scrolls up so that thenext item on the list is high-lighted and a checkmarkappears next to the accom-plished item.

The last item on each of the checklists is followed by themessage END OF CHECKLIST.

After all items have been checked, a confirmationmessage CHECKLIST COMPLETE appears and allbutton labels disappear except MENU.

7. To skip the selected checklist item without checking it offthe list, press the SKIP button.

The list scrolls up so that the next item is highlightedand a large dot appears next to the skipped item (figure3-11). All skipped (unchecked) items appear again atthe bottom of the checklist (figure 3-12).

BEFORE LAND I NG

MENU

CHECK

BETA L ITES-CHECK/ON

BACKUP

SK IP

FUEL CROSSFEED-OFF

APPROACH SPD-99 K I AS

END OF CHECKL IST

SK IPPED ITEMS

BRTOFF

Figure 3-12. Skipped Items

BEFORE LAND I NG

MENU

CHECK

BACKUP

SK IP

W I NG FLAPS-TO/APPCH

PROP SYNCHRO-OFF

LDG GEAR-DN AND CHK

LDG L I GHTS-AS RE DQ

FUEL CROSSFEED-OFF

BRTOFF

Figure 3-11. Skipped Item

BEFORE LAND I NG

MENU

CHECK

BACKUP

SK IP

W I NG FLAPS-TO/APPCH

PROP SYNCHRO-OFF

LDG GEAR-DN AND CHK

FUEL TY-CHECKQ

FUEL CROSSFEED-OFF

BRTOFF

Figure 3-10. A Checklist Screen




8. To scroll backwards and review the checklist at any time,press the BACKUP button.

Set the Date & Time1. Press the MENU button to go to the MAIN MENU screen

(figure 3-4).

2. Press the NEXT button repeatedly if necessary until the“Time/Date” item is highlighted.

3. Press the GO button to view the TIME/DATE screen(figure 3-13).

4. Press the NEXT button repeatedly until the day field ishighlighted.

5. Press the UP or DOWN button repeatedly to step the dayfield to the proper day.

6. Repeat steps 4 & 5 to set the month, year, & time.

Time an EventThe stopwatch feature allows you to time an event. If poweris interrupted to the WX-1000, the stopwatch resets to 00:00:00.


T IME/DATE

UP

NEXT

Stopwatch :

E l a psed T ime :

0 0 : 0 0 : 0 0

02 : 4 8 : 2 2

1 0 : 5 8 : 4 3

MENU

DOWN

25 9 1Dec

BRTOFF

Figure 3-13. TIME/DATE Screen

Set the Date & Time





The stopwatch digits should be highlighted.

4. Press the START button to start the stopwatch.

5. Press the STOP button to stop the stopwatch

6. Press the RESET button to reset the stopwatch digitsback to 00:00:00

Measure Elapsed TimeThe elapsed time feature allows you to measure theamount of time that the WX-1000 has been turned on.




4. Press the NEXT button to highlight the Elapsed Time digits.

5. Press the START button to start measuring the elapsed time.

6. Press the STOP button to stop measuring the elapsed time.

7. Press the RESET button to reset the elapsed time digitsback to 00:00:00

If power to the WX-1000 is interrupted, the current elapsedtime value is stored in memory. After power is restored, youmust press the START button to continue countingelapsed time, starting from the stored value.

Measure Elapsed Time



Turn Off the WX-10001. Rotate the OFF/BRT knob counterclockwise until it turns off.

Power turns off to the WX-1000 display, processor, andantenna, and all discharge points are erased from memory.

Error MessagesThe WX-1000 detects most common faults and displays errormessages indicating the nature of the faults and whichfunctions may be inoperative. In most cases, all otherfunctions will continue to operate. If continued operation ispossible, the message PRESS ANY KEY TO CONTINUEappears. Pressing any button returns you to the screen thatwas displayed before the error message appeared and permitsoperation of the remaining functions.

If you get an error message that won’t go away after cyclingthe power off and on, write down the error message and callL-3 Avionics Systems customer service (1-800-453-0288) oryour authorized Stormscope dealer for service. The followingparagraphs provide a few examples of possible error messages.

ERROR 01: Continued operation is not possible (figure 3-14)

Meaning: An error or malfunction may exist in the systemhardware: circuitry, video output, data memory, programmemory, video memory, etc.

Action: Continuedoperation of the unitis not possible. Turnthe unit off and callfor service.

Cont i nued operat i on

i s not poss i b l e

ERROR 0 1

BRTOFF

Figure 3-14. Error 01

Turn Off the Stormscope System



ERROR 44 or 45: Weather mapping is inhibited (figure 3-15)

Meaning: There may or may not be an error in thethunderstorm processing circuitry of the unit. Seventypercent of these errors are caused by aircraft noise. Othercauses include flying near power transmitters, taxiing overunderground cables, or operating near a hangar, powerlines, or GPU cart. As you move away from these interfer-ence sources, the weather mapping functions shouldautomatically recover. In general, when these messagesoccur intermittently, they are usually caused by someoutside interference.

Action: Turn off different aircraft systems to try to isolateany source of noise that may be causing the error, or pressany button to continue operation without thunderstormdata. If these messages display steadily, call for service.

Weather mapp i n g

i s i n h i b i ted

Press any key

to cont i nue

ERROR 44

BRTOFF


Error Messages



ERROR 46: Weather mapping is inhibited (figure 3-16)

Meaning: This error typically means that the WX-1000antenna is not able to receive or forward thunderstorm data;but this error could instead be caused by noise or by a faultyprocessor. Weather mapping functions are not available.Other functions are operable.

Action: Press any button to continue without thunderstormdata and call for service.

MIC KEY STUCK: Weather mapping is inhibited (figure 3-17)

Meaning: The microphone key may have been depressed formore than 1 minute and is inhibiting the processing anddisplaying of thunderstorm data, but it’s more likely thatthere’s a problem with the processor.

Action: Check your microphone key to see if it’s stuck. Ifthat’s not the problem, press any button to continue withoutweather mapping functions and call for service.

Error Messages

Weather mapp i n g

i s i n h i b i ted

Press any key

to cont i nue

ERROR 46

BRTOFF


Weather mapp i n g

i s i n h i b i ted

M I C KEY STUCK

BRTOFF

Figure 3-17. Mic Key Stuck


Never use your Stormscope system to attempt to penetrate athunderstorm. The FAA Advisory Circular, Subject: Thunder-storms, and the Airman’s Information Manual (AIM) recom-mend that you “avoid by at least 20 miles any thunderstormidentified as severe or giving an intense radar echo.”

Even a single discharge point may represent thunderstormactivity and should be avoided.

IntroductionThe examples in this chapter are designed to help you relatethe patterns of +’s on your Stormscope screen to the size andlocation of thunderstorms that may be near your aircraft.

A blue and white grid in the examples represents the airspacearound your aircraft. (See figure 4-1.) Each square in the gridrepresents a 100 by 100 nmi area. A circle represents the area

100 nmi

HeavyElectrical Activity

LightElectrical Activity

ModerateElectrical Activity

CurrentRangeStormscope

100 n

mi

Figure 4-1. Airspace Diagram

CAUTION

WARNING

Weather DisplayInterpretation

C h a p t e r 4


Chapter 4 – Weather Display Interpretation

monitored by the WX-1000. Areas of gray or black indicatethunderstorms. The darker the area, the greater the rate ofelectrical discharge activity.

Typical PatternsThree Clusters within the 200 nmi Range Ring

Figure 4-2 shows the 360° weather view at the 200 nmi range.Using this knowledge, the outer range ring, and the azimuthmarkers, the three clusters of discharge points on the screencan be interpreted as representing three thunderstorm cellsat the following azimuth and range:

Cluster Azimuth (clock position) Range1 11:00 180 nmi2 4:00 75 nmi3 4:00 180 nmi

The screen can also tell us about the relative amount ofelectrical discharge activity in thunderstorm cells. Clusters 2and 3 have more discharge points than cluster 1 indicatinggreater electrical discharge activity. All three clusters how-ever must be avoided because you can’t necessarily deter-mine the severity of thunderstorms based strictly on thenumber of discharge points. For example, in the westernUnited States, a severe thunderstorm may only have a fewelectrical discharges.

When the range is changed to 100 nmi (figure 4-3), onlycluster 2 remains visible. Clusters 1 and 3 are beyond the 100nmi range and therefore no longer appear on the screen.(Clusters 1 and 3 would again be visible if the range werereturned to 200 nmi.) Cluster 2 is now more defined and thedischarge points are larger. The interpretation of cluster 2remains the same: a moderately active thunderstorm atazimuth 4:00, range 75 nmi.

Two Clusters within the 200 nmi Range RingFigure 4-4 shows the screen in the 360° weather view at the200 nmi range. Using this knowledge, the outer range ring,and the azimuth markers, the two clusters of dischargepoints on the screen can be interpreted as one thunderstormcell at 5:30, about 150 nmi from the aircraft, and another cellat 1:00, about 100 nmi from the aircraft. The cluster at 1:00

Typical Patterns



1

2 3

MENU

CLEAR

120 °

25

200 nm

BRTOFF

MENU

25

120°

100 nmCLEAR

BRTOFF

Figure 4-2.Three Clusters Within200 nmi

Figure 4-3.Range Changed to100 nmi

MENU

CLEAR

120 °

25

200 nm

BRTOFF

Figure 4-4. Two Clusters Within 200 nmi

Typical Patterns



has fewer discharge points than the cluster at 5:30, indicatinga lower rate of electrical activity. Both clusters must be avoided.

Mapping Headings Past ThunderstormsFigures 4-5 through 4-8 and the following paragraphs showthe progression of an aircraft past several thunderstorms.

Range Set at 200 nmiFigure 4-5 shows the 360° weather view at the 200 nmi range.Two thunderstorms appear almost as one cluster of dis-charge points off the nose of the aircraft, centered 180 nmiaway. A second cluster at 9:30 indicates a storm systemcontaining three thunderstorms.

Aircraft Progresses 100 nmiFigure 4-6 shows that the aircraft has maintained its headingand progressed 100 nmi. The two thunderstorms off thenose of the aircraft appear to have expanded horizontally onthe screen. This effect is normal anytime you get closer to astorm. The line of thunderstorms previously at 9:30 nowappears at 8:30.

Range Changes to 100 nmiFigure 4-7 shows the screen a short time later in the 120°weather view at the 100 nmi range. The thunderstorms at8:30 are not visible in this view but the thunderstorms offthe nose of the aircraft appear in greater detail as twoseparate thunderstorms (at 11:30 and 12:15 centered 90 nmifrom the aircraft).

Aircraft Turns to Avoid ThunderstormsFigure 4-8 shows the screen a short time later after theaircraft has turned to the right to avoid the thunderstormsand the pilot has cleared all discharge points (in order toredraw them in correct position relative to the new heading.)(Systems with heading stabilization installed [appendix A]automatically rotate the existing discharge points to theircorrect position relative to the new heading without thepilot having to clear the discharge points.)

Mapping Around Storms



MENU

CLEAR 200

120°

nm

25

BRTOFF

MENU

CLEAR

120 °

25

200 nm

BRTOFF

360 °MENU

CLEAR 100 nm

BRTOFF

25

MENU

CLEAR

25

360 °

1 00 nm

BRTOFF

Figure 4-7.Range Changes to100 nmi

Figure 4-8.Aircraft Turns to AvoidThunderstorms

Figure 4-5. Range Set at 200 nmi Figure 4-6. Aircraft Progresses 100 nmi

Mapping Around Storms



Special PatternsRandomly Scattered Discharge Points

Atmospheric instability associated with cumulus clouds, ordeveloping or dissipating thunderstorms could cause randomlyscattered discharge points as shown in figure 4-9. If you observerandom discharge points, continue to monitor the screen fordeveloping clusters which indicate thunderstorm activity.

Cluster and Splattering Within 25 nmiFigure 4-10 shows the 360° weather view at the 25 nmi range.One moderately active thunderstorm appears as a cluster ofdischarge points at 8:30 centered 14 nmi away with a splat-tering of discharge points throughout the 25 nmi range.Such splattering is due to electrical discharges within 3 to 5nmi of the aircraft and indicates that the aircraft is too closeto the thunderstorm.

While the main cluster should be your primary concern, youshould also avoid any groups of discharge points within the

MENU

CLEAR

120 °

25

200 nm

BRTOFF

MENU

CLEAR

120 °

25

025 nm

BRTOFF

Figure 4-9.Randomly ScatteredDischarge Points

Figure 4-10.Cluster and SplatteringWithin 25 nmi

Special Patterns



25 nmi range. Switch to the other ranges to ensure that thereis no thunderstorm activity along your intended path.

Note that the WX-1000 plots every electrical dischargedetected within the 25 nmi range at the exact locationdetected unless the discharge is associated with a cluster ofdischarges, in which case the discharge point is clusteredwith the associated discharge points.

Discharge Points Off Aircraft’s NoseFigure 4-11 shows the 360° weather view at the 200 nmi range.The discharge points ahead of the aircraft could be causedby a strong thunderstorm just beyond the 200 nmi range.Another cause might be electrical discharge signals arrivingvia atmospheric skip from a distant thunderstorm wellbeyond the WX-1000 range. In either case, no immediateaction is required.

Line of Discharge Points While TaxiingPassing over a cable beneath the taxiway can cause a line ofdischarge points across the screen as shown in figure 4-12.

MENU

CLEAR

120 °

25

200 nm

BRTOFF

MENU

CLEAR

120 °

25

200 nm

BRTOFF

Figure 4-11.Discharge Points Offthe Aircraft’s Nose

Figure 4-12.Line of Discharge PointsWhile Taxiing

Special Patterns



Similar concentrations of discharge points across the screenmay appear while taxiing due to electrical signals from nearbyequipment such as arc welders or subway rails. After passing thesource of the interference, press the CLEAR button.

Developing Cluster Within the 25 nmi Range RingFigure 4-13 shows a developing thunderstorm 12 nmi fromthe aircraft. If you see a screen such as this with a developingcluster within the 25 nmi range ring, you should change courseto avoid the storm and continue to monitor the screen.

Split Image Off Nose of AircraftA strong thunderstorm at 50–75 nmi away or a weak thun-derstorm 5–25 nmi away could cause the display shown infigure 4-14. Observe the splitting activity. The strongthunderstorm tends to split much faster. Press the CLEARbutton and monitor the display for activity. Deviate yourcourse away from any activity within the 25 nmi ring.

MENU

CLEAR

120 °

25

050 nm

BRTOFF

MENU

25

120°

100 nmCLEAR

BRTOFF

Figure 4-13.Developing ClusterWithin 25 nmi

Figure 4-14.Split Image Off Noseof Aircraft

Special Patterns


Table 5-1. WX-1000 Processor Specifications*

Part Number Definition:78-8060-5790-3 – WX-100078-8051-9160-4 – WX-1000+78-8060-5941-2 – WX-1000E (232/422 navaid)78-8060-6086-5 – WX-1000E (429 EFIS)78-8060-6092-3 – WX-1000E (429 navaid RX low/TX low)805-11000-001 – WX-1000E (232 navaid)805-11000-002 – WX-1000E (422 navaid)805-11001-001 – WX-1000E (429 EFIS RX high/TX low)805-11001-002 – WX-1000E (429 EFIS RX high/TX high)805-11001-003 – WX-1000E (429 EFIS RX low/TX low)805-11001-004 – WX-1000E (429 EFIS RX low/TX high)

Size:3.38 in (8.59 cm) high4.88 in (12.40 cm) wide12.62 in (32.05 cm) deep

Weight:6.5 lb (3.0 kg)6.9 lb (3.2 kg) with navaid or EFIS optionMounting tray adds 0.7 lb (0.3 kg)

Power Input Requirements:10.5 to 32 V dc, 28 W

Operating Temperature:-55 to +70 °C (-67 to +158 °F)

Storage Temperature:-55 to +70 °C (-67 to +158 °F)

SpecificationsC h a p t e r 5

*Specifications subject to change without notice.(Continues on next page)


Chapter 5 – SpecificationsProcessor Specifications

Table 5-1. WX-1000 Processor Specifications* (Continued)

*Specifications subject to change without notice.

Operating Altitude:55,000 ft maximum

TSO Compliance:C110a

RTCA Compliance:Environmental:

DO-160B F2-BA(BMNO)XXXXXXZ(AB)A(AZ)ZZZXXXSoftware:

DO-178A Level 2


Chapter 5 – Specifications

Table 5-2. WX-1000 Display Specifications*

Part Number Definition:78-8060-5900-8 – Black Bezel78-8060-5900-9 – Gray Bezel


Weight:2.5 ±0.2 lb (1.1 ±0.1 kg)

Power Input Requirements:+15/-15 V dc, 0.7 A (maximum)




TSO Compliance:FAA C110a & C113JTSO C113

RTCA Compliance:DO-160C F1-CA(NBM)XXXXXXZXXXZUAXXXXXX

Display Specifications



Chapter 5 – Specifications

Table 5-3. WX-1000 Antenna Specifications*

Part Number Definition:78-8051-9200-8 – White78-8051-9220-6 – Black


Weight:1.9 lb (0.86 kg)




TSO Compliance:C110a

RTCA Compliance:DO-160B F2-BACXXXXXXXXXXZZZXXX

Antenna Specifications


1-1Stormscope® WX-1000 Pilot’s Guide A-1

Applicable ModelsThe following Stormscope models contain the headingstabilization option:

WX-1000+

WX-1000E (all variations)

The heading stabilization option must be installed on a WX-1000 to create a WX-1000+ before the navaid or EFIS optioncan be installed to create a WX-1000E.

General DescriptionThe heading stabilization option automatically repositionsdischarge points relative to the latest aircraft heading,eliminating the need to clear the display after each headingchange.

The heading stabilization option also includes the followingfeatures:

• The current numeric heading (figure A-1) is displayedin a box at the top of the 360° and 120° weather viewscreens.

• A FLAG message (figure A-2) is displayed in place of theheading if the heading source (gyro) is malfunctioningor is not yet up to speed.

HeadingStabilization Option

A p p e n d i x A

Stormscope® WX-1000 Pilot’s GuideA-2

Appendix A Heading Stabilization Option

Heading OptionsThe heading stabilization option adds two items to theOPTIONS screen (figure A-3) as described below.

The “HDG Stabilization” item allows you to turn off theheading stabilization feature should the external headingsource (gyro) fail.

The “Heading Display” item allows you to remove theheading display from the weather views without turning offthe heading stabilization feature.

To Turn Heading Stabilization Off or On:1. Press the MENU button to go to the main menu.

2. Press the NEXT button repeatedly if necessary until“ Options” is highlighted.

3. Press the GO button to view the OPTIONS screen.

4. Press the NEXT button repeatedly if necessary until the“HDG Stabilization” ON/OFF field is highlighted.

5. Press the ON/OFF button.

If HDG Stabilization was set to ON, it will switch to OFF.If it was set to OFF, it will switch to ON.

25

360 °MENU

CLEAR 050 nm

057 °BRT

OFF

Figure A-1. Heading Display atTop of Screen

25

360°MENU

050 nmCLEAR

FLAG

BRTOFF

Figure A-2. Heading Flag at Top ofScreen

Heading Options

1-3Stormscope® WX-1000 Pilot’s Guide A-3

Appendix A – Heading Stabilization Option

To Turn the Heading Display Off or On:1. Press the MENU button to go to the main menu.



4. Press the NEXT button repeatedly if necessary until the“Heading Display” ON/OFF field is highlighted.


If Heading Display was set to ON, it will switch to OFF. Ifit was set to OFF, it will switch to ON.

Heading Error MessageError 11 (figure A-4) and Error 10 are specific to Stormscopemodels with heading stabilization installed using an XYZheading source. These errors mean that there may be anerror in the processing of heading, or that there is a malfunc-tion of the aircraft’s compass system.

If you get an Error 11 or 10, turn the WX-1000 off then backon. If the error reappears, press any button to continuewithout heading information and call L-3 (1-800-453-0288) oryour Stormscope dealer for service.

OPT I ONS

MENU

NEXT

Cont i nuous Test :

H DG Stab i l i z at i o n :

H ead i n g D i s p l a y :

O K

ON

ON/OFF

ON

BRTOFF

Figure A-3. OPTIONS Screen WithHeading Stabilization

Head i n g stab i l i z at i o n

i s not ava i l a b l e

Press any key

to cont i nue

ERROR 1 1

BRTOFF

Figure A-4. Error 11

Heading Error Message

1-1Stormscope® WX-1000 Pilot’s Guide B-1

Applicable ModelsThe following Stormscope models contain the navaid option:

WX-1000E (232/422 navaid)

WX-1000E (429 navaid)

The navaid option can only be installed on a WX-1000+.Once the navaid option is installed, the model number ofthe unit changes to one of the above model numbers.

General DescriptionThe navaid option enables the WX-1000 to display keynavigational information from a qualified loran or GPSreceiver directly on the Stormscope system’s weather viewscreens. (See figure B-1.) Specifically, the navaid optionincludes the following features:

• Displays flight plan courselines and waypoints whenused with the appropriate loran or GPS receivers, or anFMS

• Displays your heading-stabilized courseline and selectedwaypoints

• Displays a graphical course deviation indicator (CDI)with 5 nmi of deviation on each side of the courseline

• Displays up to 6 navigational data items (such as rangeand bearing to the active waypoint, ground speed, etc.)chosen by the user from a list of 14 items

Navaid OptionA p p e n d i x B

Stormscope® WX-1000 Pilot’s GuideB-2

Appendix B – Navaid Option

• Displays warnings of weak and missing loran signals

• Works with a wide variety of loran receivers

• Works with qualified GPS receivers

• RS-232C, RS-422, or ARINC 429 communications

• The RS-232C and RS-422 communications are fully opto-isolated to ensure the WX-1000 operates even when theloran is faulty

• Contains an extra RS-232C communication port for futureexpansion

When used with loran or GPS receivers that transmit flight planinformation, the navaid option can display flight planwaypoints within the selected nautical mile range and view.The maximum number of waypoints that can be displayeddepends on the Stormscope software version and the data inputformat. For software version 3.23 or higher, the navaid optioncan display up to the first 32 waypoints for flight plan datainput in the King KLN XX RS-232/422 data format, and up tothe first 10 waypoints for flight plan data input in a non-Kingformat. For software versions lower than 3.23, the navaid optioncan display up to the first 10 waypoints. A tag on the back of theStormscope processor identifies the software version. Some qualifiedloran or GPS receivers only transmit the next waypoint regardless ofthe number of waypoints in the flight plan.

NOTE

360 °MENU

CLEAR

099 . 8

1 40

00 : 4 2

NM

B R GETE

BJJT O

KTST K

0 36 °

036 °

200 nm

022 °BRT

OFF

25

Figure B-1. Typical Weather View Screen With the Navaid Option

General Description



Main MenuThe navaid option adds the “Navaid Display” item to themain menu (figure B-2). The “Navaid Display” item allows

you to remove navaid-relateditems from the weather views asfollows:

1. Press the MENU button to goto the main menu.

2. Press the NEXT buttonrepeatedly if necessary until the“Navaid Display” ON/OFF field ishighlighted.


If Navaid Display was set to ON,it will switch to OFF. If it was setto OFF, it will switch to ON.

Navaid Setup ScreenThe navaid option adds the “ Navaid Setup” item to theOPTIONS screen (figure B-3). Choosing the “ NavaidSetup” item brings up the Navaid Setup screen (figure B-4).

The Navaid Setup screen allows you to change which sixnavaid data items are selected to be displayed on the weatherview screens and where on the screen they are to be dis-

OPT I ONS

Cont i nuous Test : O K

HDG Stab i l i z at i o n : O N

Head i n g D i s p l a y : O N

MENU

GONEXT

Nava i d Setup

BRTOFF

Figure B-3. OPTIONS Screen w/Navaid

Nava i d Setup

Rng

EX IT

NEXT

GS

ETE

Brg

XTK

ETA

WPT

MVar

MSA

MESA

T ime

Lat

Long

PLACE

N/A

ETE

GS

Rng

Brg

XTK

ETA

Trk

BRTOFF

Figure B-4. Navaid Setup Screen

STORMSCOPE

MA I N MENU

Check l i sts

T ime/Date

Opt i ons

120 °360 °

ON/OFFNEXT

Nava i d D i s p l a y : O N

BRTOFF

Figure B-2. MAIN MENU w/Navaid

Main Menu



played. The navaid data items can be changed regardlessof whether the Navaid Display item on the main menu isset to ON or OFF.

The six navaid data items currently selected are displayedin the middle portion of the Navaid Setup screen in thesame arrangement as they would appear on the weatherview screens. The navaid setup grid displayed at the topof the screen lists 14 navaid data items and a blank space.Table B-1 lists the meanings of the navaid data itemabbreviations.

The data items available for selection are dependent uponthe specific information provided by your loran or GPSreceiver. If an item on the grid is not available from yourreceiver, that grid space will include an asterisk (*).

To Change the Six Navaid Data Items:1. Press the MENU button to go to the main menu.


Rng .........Range to Active Waypoint

GS ...........Ground Speed

ETE.........Estimated Time Enroute

Brg ..........Bearing to Active Waypoint

XTK ........Crosstrack Error

ETA ........Estimated Time of Arrival

Trk ..........Track

WPT .......Waypoint Identifier

MVar .......Magnetic Variation at Present Position

MSA ........Minimum Safe Altitude

MESA .....Minimum Enroute Safe Altitude

Time .......Stormscope System Stopwatch

Lat ...........Latitude

Long ........Longitude

Table B-1. Navaid Data Item Abbreviations

Navaid Setup Screen




4. Press the NEXT button repeatedly if necessary until“ Navaid Setup” is highlighted.

5. Press the GO button to view the Navaid Setup screen.

6. Press the NEXT button repeatedly if necessary until thenavaid data item (or blank cell) you want to insert is high-lighted.

7. Press the PLACE button.

The selected item appears in the upper left position.

8. To move the item to another position, press the MOVEbutton.

Each additional press of the MOVE button advances theitem counterclockwise. When you move a data item into aposition that already has an item, the new item temporarilydisplays in that position. When you press the MOVE buttonagain, the previous data item reappears.

9. To set the position of a highlighted data item, press the SETbutton.

The highlighted data item is set into its current positionand the highlighting box moves to the next data item inthe grid.

10. To move the highlighting box back to the grid withoutsetting the position of the highlighted data item, press theCANCEL button.

Any data item previously occupying the position willreappear.

11. Repeat steps 6 through 10 until all six positions are filledwith the items you want displayed.

12. Press the EXIT button to return to the OPTIONS screen.

Navaid Setup Screen



Data Comm ErrorsError 13 (figure B-5)means receiving nodata. Error 14 indi-cates a processingerror. Errors 15 and 17indicate a faulty navaidcommunication circuit.Press any button tocontinue withoutnavaid information,then call for service.

Warning MessageIf the loran or GPSreceiver determines itsposition error to begreater than 1.7 nauti-cal miles, a warningmessage in the form ofa highlighted “w” willappear next to theaffected data items.(See figure B-6.)

NAV FLAGIf the loran or GPSreceiver fails to acquirea consistent signal andis not certain of itsposition, the high-lighted message “NAVFLAG” appears. (Seefigure B-7.) Naviga-tional data will not bedisplayed if the receiverindicates a flag condi-tion.

25

360 °MENU

CLEAR

057 °

NAV FLAG

050 nm

BRTOFF

Figure B-7. NAV FLAG

Commun i c at i on error

Nava i d opt i on

not ava i l a b l e

Press any key

to cont i nue

ERROR 13

BRTOFF

Figure B-5. Error 13

360 °MENU

CLEAR

099 . 8

1 40

00 : 4 2

NM

B R GETE

BJJT O

KTST K

0 36 °

036 °

200 nm

022 °BRT

OFF

25

w

w

w

w

w

Figure B-6. Warning Messages

Data Comm Errors

1-1Stormscope® WX-1000 Pilot’s Guide C-1

Applicable ModelsOnly the WX-1000E (429 EFIS) model contains the EFISoption. The EFIS option can only be installed on a WX-1000+. Once the EFIS option is installed, the unit’s modelnumber changes to WX-1000E (429 EFIS).

General DescriptionThe EFIS option enables the WX-1000 to display its thunder-storm data on an EFIS display unit via ARINC 429 busoutputs, or on a radar indicator via the L-3 Radar GraphicsComputer (RGC). The EFIS display unit or RGC/radarindicator can be used in place of the standard WX-1000display, or in addition to it. Refer to your EFIS or RGCmanuals for instructions on displaying Stormscope thunder-storm data.

EFIS Thunderstorm SymbologyThe EFIS or RGC reads the Stormscope thunderstorm dataand displays the intensity level of areas of detected lightning(not individual electrical discharges). Refer to your EFIS orRGC documentation for details on how the intensity levelsare defined and displayed. Some EFISs and the RGC displaythe following symbols. Other EFISs use different colors torepresent different intensity levels.

Light activity (up to 8 strikes/min)

Moderate activity (9-25 strikes/min)

Heavy activity (26 or more strikes/min)

EFIS OptionA p p e n d i x C

Record of Important Information

Dealer InformationName _________________________________________

Address ________________________________________

City, State, Zip __________________________________

Telephone ______________________________________

Equipment InformationDate of Purchase _________________________________

Installation Date _________________________________

Processor:Model Number_______________________________

Part Number ________________________________

Serial Number _______________________________

Mod Letter __________________________________

Software Version _____________________________

Antenna:Model Number_______________________________

Part Number ________________________________

Serial Number _______________________________

Mod Letter __________________________________

Display:Model Number_______________________________

Part Number ________________________________

Serial Number _______________________________

Mod Letter __________________________________

To ensure that a new or repaired WX-1000 meets the TSO,meets foreign government certification requirements, and meetsL-3 Avionics Systems performance standards, your WX-1000must be installed and tested by an L-3 Avionics Systems-authorized Stormscope dealer.

NOTE

75-0299-7690-1 (Rev. E, 05/03/07)

L-3 Communications Avionics Systems, Inc.5353 52nd Street, S.E.Grand Rapids, MI 49512 USA(800)253-9525www.L-3com.com/as

Stormscope® WX-1000

This data is provided at no charge, or at cost, tothe public and is considered publicly available, NoLicense Required (NLR) as defined in the ExportAdministration Regulations (EAR) Part 734.7-11.

Documents

Pilot’s Guide Stormscope