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163

Outline

● OK APT Status - Terminal Update

● Reprocessing 4-year OK, MD, BC dataQ ACTS04.XLS Excel Macros

c OK ACTS Home Page Update

“ HDR File Archives Status

I

●

●

●

●

OK APT Status -Terminal Update

Replaced ethernet card with ZIP (paraHel port) drive on11/14/97, but failed. Ethernet card was re-installed on11/30/97. Since then lots of 1-2 seconds gaps in every daydata. The problem was fixed by replacing the PC’s motherboard and all the cards on March 24, 1998. ZIP drive wasalso installed.“Lost default drive’” bug in dacs.exe (TSR) was foundduring testing ZIP drive.

Fiber optics modem power failed on 6/17/98 - 7/16/98.Many system crashes and data lost during that time period.

APT system is now working smoothly except WWV cardclock jumping problem still remains.

●

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Reprocessing 4-year OK, MD, BC Data

A new 333 MHz PentiumII PC was used in reprocessing,which led to find that ACTSPP need updated to run on a fastPc.

Weather events, system and operational faults were insertedinto .LOG files, and marked bad if necessary. Snow eventsand rain gauge noises were marked bad in .LOG files.

Calibration constants were re-adjusted for each site. For BCdata calibration was done on a daily basis.

A radiometer swapping problem were found in ACTSPPprogram during reprocessing MD data. MD data were thenreprocessed second time with the new updated ACTSPP.

NCDC surface data were used in reprocessing BC and MDdata. Oklahoma Mesonet surface data were used inreprocessing OK data.

m. 1

1.6

1.4

1.2

1

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

Reprocessing 4-year OK, MD, BC Da<

12/1/93 - 12/31/97 BC 20 GHz Calibration

a

——— ——. —.-[I

-20 Clear Sky DeltaJ_ l--

020 Ratio Beacon to Radiometer Attenuation l___

.l—. . . –—~

“. ,.

1 2/1 /93 1 2/1 /94 1 2/1 /95 12/1 /96 1 2/1 /97I

II

Reprocessing 4-year OK, MD, BC Data

12/1 /93 - 12/31/97 BC 27 GHz Calibration1.6 z - — .—.. — —.. . ——

1.4

1.2

1

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-27 Clear Sky Delta—— ––—— —

, ‘. 027 Ratio Beacon to Radiometer Attenuation— o

1 2/1 /93 12/1/94 1 2/1 /95 12/1 /96 1 2/1 /97

.6

.4

.2

1

0.8

0.6

0.4

0.2

0

-0.2

-0.4

Reprocessing 4-year OK, MD, BC Data

3/1 6/94 - 5/31/98 MD 20 GHz Calibration—- .

I -20 Clear Sky Delta

1-

0L

020 Ratio Beacon to Radiometer Attenuation o

,.. .-,—–.

-0.63/1 6194 3/1 6/95 3/1 .5196 3/1 6/97 3/1 6/98

-4c

.6

.4

1.2

1

0.8

0.2

0

-0.2

-0.4

-0.6

Reprocessing 4-year OK, MD, BC Data

3/1 6/94 - 5/31/98 MD 27 GHz Calibration

-27 Clear Sky Delta

027 Ratio Beacon to Radiometer Attenuationo

—“e~ “—~.

0

3/1 6/94 311 6/95 3/1 5/96 3116197 3/1 6/98

—

--J

Remocessing 4-vear OK, MD, BC Data

12/1/93 - 6/30/98 OK 20 GHz Calibration1.6 F—–-—--——————

—.

* 20 Clear Sky Delta1 .-t

, 020 Ratio Beacon to Radiometer Attenuation

1,2 i—

0 . 6 - 0.> _

0.4 –

. . . .“.

-0.61 2/1 /93 12/1/94 1 2/1 /95 12/1 /96 1 2/1 /97

4NJ

Reprocessing 4-year OK, MD, BC Data

12/1/93 - 6/30/98 OK 27 GHz Calibration1 G -—-– —-. —.-

,-27 Clear Sky Delta

027 Ratio Beacon to Radiometer Attenuation

1.2% A-

0 . 6 - —0

-0.4 +

-0.61 2/1 /93 1 2/1 /94 1 2/1 /95 12/1 /96 1 2/1 197

--J‘bJ

●

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ACTS04.XLS Excel Macros

New user interface and more error prevention codes.

Two new macros added.— ChangeConstMM– Marking

Annual edf macros now can compare the calculated edfs—with attenuation models (need first install Attenuation ModelExcel Add-in, which can be found at our web site).

Current version can not run in Excel 97. Still working onnew version.

Testing version can be found in our ftp address or web page.Comments and suggestions are welcome.

ACTS04.XLS Excel Macros

xwaqg@tornado. caps. ou. edu

-.——Generating IMly summary plch for successive days

Calculating annual edf and compare with models

Ekr-tmating Monthly attenuation. ~ain rate. fade interval. fade ckmticm edfs

Assisting user checking their preprcmming calibration

Change cdbtiin constant for swcessiie rnontl-m j

Marking I“..,-.. —. —...-. -,----

-“_JE xiAdding bad mark$ into a IJIG file

AC 1 ‘S04.XLS Excel Macros

9603 -9702md EDF

If-m .

As0.-%3ca)

21

-.. . A\

~ 20GHz Beacon

——+—— 27GHz Beacon

— — 20GHz T_CAttenF. . . - 27GHz T_CAttenF

\‘ ● ‘,

“ .

\\

“.\9>-

..% \–- - _

m

0,01-5 0 5 Attenuation dB 10 15 20

Oklahoma ACTS Home Page Update- http: //rossby.metr.ou. edu/-actsraiti

The page now has a new look, and many useful links aboutKa-band SatCorn.

A text readme file has been added to Attenuation ModelExcel Add-in page, which explains how to use the add-in inmore detail.

A new page - Excel Macros acts04.xls was added. User canoet the test version of the macros from there.~The reprocessed 4-year ACTS propagation data from 7sites will soon replace the old data and graphs currentlykept in the page.

,,II

-4

Oklahoma ACTS Home Page Update

F* &!$ &VJ fiO ~ti !&P..- —,,, . .-..---, --—..-,-,-- -----..,.. . . . . . . . . . . . . . “,, —-... ,- —,,. —., ,--,,,, ,,,—.-. ., .- . . . . . . . ..,,... —,,,, —-... . . . . . . . . . .-

c’-–– “:2’-”-”’3 :3 9. 45 ,+ * %3. q~

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HDR File Archives Status

● Current HDR files list— AK: 960624-960816, 970607-980630 (16 months)— BC: 961021-961023, 980312-980625 (5 months)

- co:– FL:

- MD:– NM:

- OK:— .

960801-960930, 980105-980630 (8 months)

960618-960930960627-980620960828-970630,

(4 months)

(25 months)

970801 -current (25 months)

96021 7-current (32 months)

● hxperlmenters please send your HDR files to Univ. of OK.

● HDR files can be made available on CDs.