ANS-322 AMSAT News Service Weekly Bulletins SATPC32 FILES ERROR
It looks like the SATPC32 frequency/DOPPLER files for the Sats listed have reversed the frequencies. 73 Christy KB6LTY
Christy, KB6LTY, recently wrote that the Frequency/Doppler files published in the last issue of ANS have the uplink and downlink frequencies reversed in the files format. The information at the bottom of the Doppler.SQF file, in SATPC32, states: ; Each line has to contain the following parameters: ; The name of the satellite, the spelling has to be the same as in the Keplerian ; source file. ; the receive- and transmit frequencies in kHz, ; the Up- and Downlink modes, possible entries: FM,FMN,CW,CWN,USB,LSB, ; the frequency trend of the satellite (normal or reverse), possible entries: NOR, REV ; the converter and transverer offset frequencies in kHz
If the receive frequency should be the first frequency listed in file, and the transmit frequency the second, then this observation seems accurate. and the frequencies need to changed before being copied. What is confusing is the description of the modes is suggested as the reverse, "Up and Down frequency modes".So my questions are: Does it matter which is first and which is second (it makes sense it should)? Is the data correct as listed in the ANS or do these need to be revised?
The following is the data as published:
Copy and paste the following lines into the "Doppler.SQF" folder: FOX1-Cliff,435300.0,145920.0,FM,FM,NOR,0,0,FM U/V FOX1-Cliff,1267300.0,145920.0,FM,FM,NOR,0,0,FM L/V ESEO,1263500.0,145895.0,FM,FM,NOR,0,0,FM L/V K2SAT,145980.0,435835.0,FM,FM,NOR,0,0,FM V/U ExseedSat,435340.0,145900.0,FM,FM,NOR,0,0,FM U/V JY1SAT,435110.0,1459865.0,USB,LSB,REV,0,0,CW/SSB Transponder JY1SAT,145840,0,USB,USB,NOR,0,0,Beacon
EMike, AA8EM
E. Michael McCardel, AA8EM, former KC8YLD Senior Editor for AMSAT News Service, Past VP Educational Relations for AMSAT-NA
Have you donated to get your Fox-1 Challenge Coin Yet? http://www.amsat.org/?p=3275 On Sun, Nov 18, 2018 at 4:29 PM cchunter3@mindspring.com wrote:
It looks like the SATPC32 frequency/DOPPLER files for the Sats listed have reversed the frequencies. 73 Christy KB6LTY _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Mike, Christy is correct they are reversed, they are also reversed on the UK website and other places on the web.
Kevin WA7FWF
On 11/19/2018 7:36 AM, E.Mike McCardel wrote:
Christy, KB6LTY, recently wrote that the Frequency/Doppler files published in the last issue of ANS have the uplink and downlink frequencies reversed in the files format. The information at the bottom of the Doppler.SQF file, in SATPC32, states: ; Each line has to contain the following parameters: ; The name of the satellite, the spelling has to be the same as in the Keplerian ; source file. ; the receive- and transmit frequencies in kHz, ; the Up- and Downlink modes, possible entries: FM,FMN,CW,CWN,USB,LSB, ; the frequency trend of the satellite (normal or reverse), possible entries: NOR, REV ; the converter and transverer offset frequencies in kHz
If the receive frequency should be the first frequency listed in file, and the transmit frequency the second, then this observation seems accurate. and the frequencies need to changed before being copied. What is confusing is the description of the modes is suggested as the reverse, "Up and Down frequency modes".So my questions are: Does it matter which is first and which is second (it makes sense it should)? Is the data correct as listed in the ANS or do these need to be revised?
The following is the data as published:
Copy and paste the following lines into the "Doppler.SQF" folder: FOX1-Cliff,435300.0,145920.0,FM,FM,NOR,0,0,FM U/V FOX1-Cliff,1267300.0,145920.0,FM,FM,NOR,0,0,FM L/V ESEO,1263500.0,145895.0,FM,FM,NOR,0,0,FM L/V K2SAT,145980.0,435835.0,FM,FM,NOR,0,0,FM V/U ExseedSat,435340.0,145900.0,FM,FM,NOR,0,0,FM U/V JY1SAT,435110.0,1459865.0,USB,LSB,REV,0,0,CW/SSB Transponder JY1SAT,145840,0,USB,USB,NOR,0,0,Beacon
EMike, AA8EM
E. Michael McCardel, AA8EM, former KC8YLD Senior Editor for AMSAT News Service, Past VP Educational Relations for AMSAT-NA
Have you donated to get your Fox-1 Challenge Coin Yet? http://www.amsat.org/?p=3275 On Sun, Nov 18, 2018 at 4:29 PM cchunter3@mindspring.com wrote:
It looks like the SATPC32 frequency/DOPPLER files for the Sats listed have reversed the frequencies. 73 Christy KB6LTY _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
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Original Message From: Kevin Schuchmann Sent: Monday, November 19, 2018 08:02 To: amsat-bb@amsat.org Subject: Re: [amsat-bb] ANS-322 AMSAT News Service Weekly Bulletins SATPC32 FILES ERROR
Mike, Christy is correct they are reversed, they are also reversed on the UK website and other places on the web.
Kevin WA7FWF
On 11/19/2018 7:36 AM, E.Mike McCardel wrote:
Christy, KB6LTY, recently wrote that the Frequency/Doppler files published in the last issue of ANS have the uplink and downlink frequencies reversed in the files format. The information at the bottom of the Doppler.SQF file, in SATPC32, states: ; Each line has to contain the following parameters: ; The name of the satellite, the spelling has to be the same as in the Keplerian ; source file. ; the receive- and transmit frequencies in kHz, ; the Up- and Downlink modes, possible entries: FM,FMN,CW,CWN,USB,LSB, ; the frequency trend of the satellite (normal or reverse), possible entries: NOR, REV ; the converter and transverer offset frequencies in kHz
If the receive frequency should be the first frequency listed in file, and the transmit frequency the second, then this observation seems accurate. and the frequencies need to changed before being copied. What is confusing is the description of the modes is suggested as the reverse, "Up and Down frequency modes".So my questions are: Does it matter which is first and which is second (it makes sense it should)? Is the data correct as listed in the ANS or do these need to be revised?
The following is the data as published:
Copy and paste the following lines into the "Doppler.SQF" folder: FOX1-Cliff,435300.0,145920.0,FM,FM,NOR,0,0,FM U/V FOX1-Cliff,1267300.0,145920.0,FM,FM,NOR,0,0,FM L/V ESEO,1263500.0,145895.0,FM,FM,NOR,0,0,FM L/V K2SAT,145980.0,435835.0,FM,FM,NOR,0,0,FM V/U ExseedSat,435340.0,145900.0,FM,FM,NOR,0,0,FM U/V JY1SAT,435110.0,1459865.0,USB,LSB,REV,0,0,CW/SSB Transponder JY1SAT,145840,0,USB,USB,NOR,0,0,Beacon
EMike, AA8EM
E. Michael McCardel, AA8EM, former KC8YLD Senior Editor for AMSAT News Service, Past VP Educational Relations for AMSAT-NA
Have you donated to get your Fox-1 Challenge Coin Yet? http://www.amsat.org/?p=3275 On Sun, Nov 18, 2018 at 4:29 PM cchunter3@mindspring.com wrote:
It looks like the SATPC32 frequency/DOPPLER files for the Sats listed have reversed the frequencies. 73 Christy KB6LTY _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
cchunter3＠mindspring.com -
E.Mike McCardel -
Kevin Schuchmann -
Syed Faisal Akber