Setting Doppler for SSB Satellites in Doppler.sqf
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS).
Brian,
Typically the frequencies in the doppler.sqf are center of the passband.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS). -- Brian Wilkins KO4AQF _______________________________________________ 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
And you move around the passband with your VFO, you don't change the .sqf file.
73, Bernd - KB7AK
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Dave Webb KB1PVH via AMSAT-BB Sent: Sunday, June 21, 2020 12:36 PM To: Brian Wilkins KO4AQF bwilkins@gmail.com Cc: AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
Brian,
Typically the frequencies in the doppler.sqf are center of the passband.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS). -- Brian Wilkins KO4AQF _______________________________________________ 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
_______________________________________________ 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
I’m in a unique situation with 1 cat controllable radio (817) and another that can’t be CAT controlled. Maybe this is non standard. I think it is probably equivalent to using a SDR for receive and a 817 for TX. I don’t think I can leverage the power of tuning around and the software adjusting for me. I will stay parked in the center
On Sun, Jun 21, 2020 at 4:05 PM Bernd Peters via AMSAT-BB < amsat-bb@amsat.org> wrote:
And you move around the passband with your VFO, you don't change the .sqf file.
73, Bernd - KB7AK
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Dave Webb KB1PVH via AMSAT-BB Sent: Sunday, June 21, 2020 12:36 PM To: Brian Wilkins KO4AQF bwilkins@gmail.com Cc: AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
Brian,
Typically the frequencies in the doppler.sqf are center of the passband.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS). -- Brian Wilkins KO4AQF _______________________________________________ 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
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
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
Just to clarify a bit more, the value in the doppler.sqf file is the frequency that the satellite will be receiving or sending. So when you look up the satellite and it says the passband is from x to y, then you put it in the middle of this range. Ignore doppler and let the software do it for you, at least on the radio that you can do CAT with.
On Sun, Jun 21, 2020 at 4:12 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
I’m in a unique situation with 1 cat controllable radio (817) and another that can’t be CAT controlled. Maybe this is non standard. I think it is probably equivalent to using a SDR for receive and a 817 for TX. I don’t think I can leverage the power of tuning around and the software adjusting for me. I will stay parked in the center
On Sun, Jun 21, 2020 at 4:05 PM Bernd Peters via AMSAT-BB < amsat-bb@amsat.org> wrote:
And you move around the passband with your VFO, you don't change the .sqf file.
73, Bernd - KB7AK
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Dave Webb
KB1PVH
via AMSAT-BB Sent: Sunday, June 21, 2020 12:36 PM To: Brian Wilkins KO4AQF bwilkins@gmail.com Cc: AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
Brian,
Typically the frequencies in the doppler.sqf are center of the passband.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS). -- Brian Wilkins KO4AQF _______________________________________________ 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
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
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
-- Brian Wilkins KO4AQF _______________________________________________ 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
You don't need to stay parked in the center. Most people who don't use cat control or operate half duplex come up with an offset that is NOT in the center of the passband, but off to the side. Staying parked off to the side is less of a problem for everyone else trying to use the bird...
73 Jeff kb2m
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Brian Wilkins KO4AQF via AMSAT-BB Sent: Sunday, June 21, 2020 16:09 To: AMSAT-BB@amsat.org Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
I’m in a unique situation with 1 cat controllable radio (817) and another that can’t be CAT controlled. Maybe this is non standard. I think it is probably equivalent to using a SDR for receive and a 817 for TX. I don’t think I can leverage the power of tuning around and the software adjusting for me. I will stay parked in the center
On Sun, Jun 21, 2020 at 4:05 PM Bernd Peters via AMSAT-BB < amsat-bb@amsat.org> wrote:
And you move around the passband with your VFO, you don't change the .sqf file.
73, Bernd - KB7AK
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Dave Webb KB1PVH via AMSAT-BB Sent: Sunday, June 21, 2020 12:36 PM To: Brian Wilkins KO4AQF bwilkins@gmail.com Cc: AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
Brian,
Typically the frequencies in the doppler.sqf are center of the passband.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB < amsat-bb@amsat.org> wrote:
For setting the uplink and downlink frequencies in doppler.sqf, do I set it to one of the many frequencies starting with the AOS and the software will adjust from there?
For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted to stay approx center, in Doppler.SQF, I would set the file to 435330.0 for uplink LSB and downlink I would set it to 145990.0
If on another pass I wanted to start somewhere else, I could set it to 435340.0 and 145980.0.
In example 1, the software would adjust from 435330.0 to 435350.0 as the satellite passes over me. (AOS to LOS). -- Brian Wilkins KO4AQF _______________________________________________ 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
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
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
-- Brian Wilkins KO4AQF _______________________________________________ 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
participants (5)
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bernd1peters＠gmail.com -
Brian Wilkins KO4AQF -
Burns Fisher -
Dave Webb KB1PVH -
kb2mjeff＠att.net