Manual Rf Repeater

8/8/2019 Manual Rf Repeater

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IRF-800


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1. OverviewThe IRF-800 (High Power RF Repeater), a system for solving the areas where

wireless phone calls are impossible, is a RF-type repeater that is designed to

cover radio shaded area such as wide-open areas and large underground

shopping centers.

2. Block Diagram

Donor Ant. Coverage / ServiceAnt.

ARR DUP

LNA IF-Module

IF-Module

HPA

DUP ARR

LNAHPA

Forward Path

Reverse Path

Basically, the Forward Path and Reverse Path are configured with same blocks as

you can see above block diagram.

For Forward Path, the input RF signal received from donor antenna passes through

ARR (Arrestor) and DPX (Duplexer), reaches to the LNA (Low Noise Amplifier)

where the signal is amplified with low noise figure.

The output signal from LNA is sent to the IF-Module that amplifies and attenuates

signal to get proper drive output power and also provides sharp other band

rejection with SAW (Surface Acoustic Wave) filter.

After IF-Module, signal goes to the HPA (High Power Amplifier), which is to provide


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2.1 Forward Path Donor Antenna Port

Forward path signal is comes from antenna via Donor Antenna.

Donor Lightning Arrestor

Arrestor is used for lightning protection of repeater. Loss of arrestor

is about 0.2dB below.

Donor Duplexer

Loss of this module is about 0.8dB. This can combine Tx (Forward)

and Rx (Reverse) signal for one antenna use. Also, Isolation between

two signals is about 110dB above.

TX-LNA

Received signal is amplified 40dB with low noise at this module. So,

output signal level will be 11dBm in case of 51dBm input level.

(P1dB=+21dBm, IP3=+36dBm, NF=1dB)

TX_IF-Module

Max Gain Setting is 12dB. If output power level of LNA is 11dBm,

Gain should be set to 7dB (Total Gain of Repeater=90dB). So, output

will be -4dBm. Also, if the output power of LNA module is 61dBm,

then, the output power of Tx_IF-module will be 49dBm, Gain=12dB

(Total Gain of Repeater=95dB).

16Watt HPA Module

The gain of HPA is 45dB. Actually, 16Watt (+42dBm) HPA will be

used for 10Watt (+40dBm) output at service output port of repeater


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Service Antenna Port & Monitoring Port

Max Output RF power of repeater at service antenna port is 10Watt.

Also, 30dB Monitoring port is equipped for Tx signal monitoring.


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2.2 Reverse Path Service Antenna Port

Reverse path signal is comes from antenna via Service Antenna.

Service Lightning Arrestor



Service Duplexer

Loss of this module is about 0.8dB. This can combine Tx (Forward)

and Rx (Reverse) signal for one antenna use. Also, Isolation between

two signals is about 100dB above. RX-LNA

Received signal is amplified 40dB with low noise at this module. So,

output signal level will be 11dBm in case of 51dBm input level.

(P1dB=+21dBm, IP3=+36dBm, NF=1dB)

RX_IF-Module

Max Gain Setting is 12dB. If output power level of LNA is 11dBm,

Gain should be set to 4dB (Total Gain of Repeater=87dB). So, output

will be -7dBm. Also, if the output power of LNA module is 71dBm,

then, the output power of Rx _IF-module will be 59dBm, Gain=12dB

(Total Gain of Repeater=95dB).

8Watt HPA Module

The gain of HPA is 45dB. Actually, 8Watt (+38dBm) HPA will be

d f 5W tt (+37dB ) t t t i t t t f t


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Donor Antenna Port & Monitoring Port

Max Output RF power of repeater at donor antenna port is 5Watt.

Also, 30dB Monitoring port is equipped for Rx signal monitoring.


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3. Features- Low cost base station alternative

- High Level Output power

- Automatic Output power limitation & Shutdown function

- Remote monitor and controlling through NMS

- Local monitor and controlling using Note-Book PC

- Much Lower power consumption compare to small base station

- Simplified commissioning and the low weight allow easy installation

- Easy Maintenance due to module-type design

- AC power Alarm function

- Weatherproof enclosure

- Thermally stable Using Heat exchanger or FAN

4. Usages

- Installation Site: wide open area, tunnel, etc.

- Radio wave shadowed areas

- Roads and/or Highways neighborhood

- In building or basement areas


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5. Specifications- Electrical Spec.

ITEM. SPECIFICATION

Frequency range FWD: 870 ~ 875MHz / RVS: 825 ~ 830MHz

Gain 65 ~ 95dB

Fwd: 20W (+43dBm)

Max Output Power Rvs: 5W (+37dBm)

f750KHz: -45dBc30KHzIn-Band Spurious

f1.98MHz: -60Bc30KHzOut Band Spurious -13dBm/100Khz Below

Gain Control Range 30dBGain Control Step 2dB

85~95dB: 1dB75~85dB: 1dBGain Setting Error65~75dB:1.5dB

In-Band Flatness 3dB (BW:3.75Mhz)ALC & Shutdown 2dB

Delay 5usecFrequency Stability 5x108Hz

InputVSWR 1.5

Output

Noise Figure 5dBFwd 0.95Waveform qualityRvs 0.96


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6. NMS Users Guide6.1. Log-in

When you execute Rbmanager.exe you can see this window.

User ID : administrator

Password : admin

6.2. Main window

You can add, modify and delete groups in this menu.

You can add, modify and delete nodes in this menu.

You can see the past history about each nodes(repeaters).

You can change your system setup in this menu.

Main window of RBmanager.

Group

Node

History

Configuration


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6.3. Sub menu of RBmanager

6.3.1 Group

Group has 3 sub menus.

6.3.1.1 Add new Group

* caution : You can add new group only numbers.

6.3.1.2 Modify Group

When modify your groups you can change

numbers into characters.

Group Add new Group

Modify Group

Delete Group

When you need a new group you can add a new group

Click Add New Group button

You can only use numbers

After add a new group you can modify your new group


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delete group menu.

6.3.2 Node

Node has 3 sub menus

6.3.2.1 Add new node

When you add a new node you can fill

more detailed contents than add group.

6.3.2.2 Modify node

First click the node which you want modify.

Then you can see the same sub window

when you see the add now node.

Node Add new node

Modify Node

Delete Node

When you need a new node you can add a new Node

Click Add New Node button

After add a new Node you can modify your new Node


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6.3.3 History

1

History has only one sub menu.

2 3 4

If you click Query then you can see this

sub menu.

6.3.3.1 Date -- Red circle 1 5

You can see the Date from ~~ to ~~

Whenever you want. (Max 3 months) 6

6.3.3.2 History -- In red circle 2

You can see history about OMC and Repeater.

6.3.3.3 Node -- In red circle 3

You can choose the node which one you want to see.

6.3.3.4 History kind - In red circle 4

You can choose detailed history or whole history about Repeaters.

If you want see whole history dont choose anything.

After choosing click the view result button

History Query


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6.3.4 Configuration

Configuration has only one sub menu.

You can setup your system configutration in

this window.

6.3.4.1 Sending Modem

This is the modem from OMC to Repeater .

6.3.4.2 Receiving Modem

This is the modem from Repeater to OMC.

6.3.4.3 Timeout

Your modems timeout delay.

6.3.4.4 Modem Initialization Command

Each modem has its specific initialization command so you must write the

specified

Initialization command.

Configuration Configure


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6.4. Execution window

If you want to view the window of repeater

select the node and click the view node

button.

6.4.1 Device view

Press the Dialing button.

1When the modem link the repeater

Connect button is activated.

Press the activated Connect button.

Then you see the status of the repeater

You can change parameters in circle 1.


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6.4.2 Alarm

When the repeater report alarm

the device view shows detailed alarm

in circle 3 (previous page).

When you want to see more detailed

alarms select the alarm button in

device view window.

Then you can see the more detailed

alarms in this Alarm View window.


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7. Outline Drawing7.1 Front View


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7.2 Side View

( left ) ( Right )


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7.4 Inside View

7

6

5

1

4

3

9

13

14

10 11

12

15

2

8

Power Supply Unit

Control Board Assembly

~ IF Module


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7.5. Photograph


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Outside View


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Inside View


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8. RF Repeater Installation

1) Wall Mount

RF

Repeater

Unit


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2) Pole Mount

Yagi

Antenna

LightningRod

Angle

Battery

Box

RF

Repeater

Unit

Patch

Type

Sector

RF

Cable


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9. Conceptual Diagram


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10. Product Photo

Size : 464 x 735 x 328.5

Documents

Manual Rf Repeater