Hi Cal, good to work you last night on L/V. I think it might be your center freq choice. Here's what most of us use.....

AO-92,145880,1267359,FM,FM,NOR,0,0

73 Jeff kb2m

-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Cal Spreitzer via AMSAT-BB Sent: Monday, July 15, 2019 8:45 AM To: amsat-bb@amsat.org Subject: [amsat-bb] SatPc32 AO-92 L Band Doppler.SQF with Icom-9700

What should the Doppler.sqf values be for AO-92 L-Band be? I'm having issue with AO-92 L-Band uplink tracking on my IC-9700. I'm guessing it has something to do with the frequency trend (Nor/Rev) setting. I've tried it set to both Nor and Rev but for some odd reason the Nor/Rev setting does not make any difference and my uplink frequency keeps dropping during the pass when it should increase? I also noticed the IC-9700 display the NOR/REV never changes according to the what the .sqf is set. I'm not sure if this is a CAT issue with the rig or me? I'm using the current IC-9700 firmware 1.11. Here is what my current .sqf is set:

AO-92,145880,1267350,FM,FM,NOR,0,0,Voice L/V

I got it to work once but manually selecting the REV on the 9700 display. But then the very next pass it didn't work?? Any advice would be appreciated. Thanks.

Cal/N3CAL

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Carl, The parameter REV / NOR in Doppler.SQF has only meaning for linear Sats: If the user tunes  the downlink frequency, the program changes the uplink frequency either in the opposite direction (REV)  pr in the same (NOR). The REV setting is correct for almost all linear satellites, only a few require NOR, e.g. AO-07, Mode A.

With FM satellites which operate in fixed channels, the setting is irrelevant. Also, the REV/NOR paramater does not affect the Doppler shift correction. Uplink and Downlink must alway be corrected in the opposite direction The program also does not change the REV / NOR setting of the radio. But it overwrites the frequencies set with the VFO. If you change e.g. at AO-73 both frequencies with the VFO up by 10 KHz, the uplink gets wrong by 20 KHz. Therefore, the program changes the uplink down by 20 KHz.

Try Jeffs, KB2M, entry in Doppler.SQF. If you don't hear signals from other stations change the downlink using the 'Downlink' correction controls in menu 'CAT'- First click the control 'V' (which is 'V-' by default with FM sats) to V+. Then the controls will work also with FM sats.  If you hear other stations but not you own signal, correct the uplink using the 'Upl. Corr.' controls in menu 'CAT' (control V must be V+)

If you know  the correct entries in Doppler.SQf  change the data line manually and save the file.

73s, Erich, DK1TB

Am 15.07.2019 um 14:44 schrieb Cal Spreitzer via AMSAT-BB:

What should the Doppler.sqf values be for AO-92 L-Band be? I'm having issue with AO-92 L-Band uplink tracking on my IC-9700. I'm guessing it has something to do with the frequency trend (Nor/Rev) setting. I've tried it set to both Nor and Rev but for some odd reason the Nor/Rev setting does not make any difference and my uplink frequency keeps dropping during the pass when it should increase? I also noticed the IC-9700 display the NOR/REV never changes according to the what the .sqf is set. I'm not sure if this is a CAT issue with the rig or me? I'm using the current IC-9700 firmware 1.11. Here is what my current .sqf is set:

AO-92,145880,1267350,FM,FM,NOR,0,0,Voice L/V

I got it to work once but manually selecting the REV on the 9700 display. But then the very next pass it didn't work?? Any advice would be appreciated. Thanks.

Cal/N3CAL

---

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: https://www.amsat.org/mailman/listinfo/amsat-bb