Fabiano,
Are you using the Beta version of Ham Radio Deluxe - v 4.1, Build 1989? That is the version I have installed. In it, the bottom "slider" on the right side of the tuning bar will enable you to fine-tune the uplink and downlink. The top slider allows you to use HRD to tune up and down the passband, and the offset will not change.
I hope this is helpful.
Note to all - I tried tuning the downlink on FO-29 last night. It seemed awkward at first because I'd only been tuning the uplink, regardless of whether it was the higher frequency. But literally after a minute or so, it was no problem.
73 to all,
Tim -------------- Original message from Fabiano Moser fabianomoser@gmail.com: --------------
Dear friends, Thank you very much for the answers, help me a lot and now I have better idea how operators does. Now I come back to other situation when I do doppler control automatic by Hamradiodeluxe:
Let make an example at VO-52 using middle of transponder. While the software is doing correction in the two VFO´s when I start to TX my signal are always above or below the frequency suggested by computer, and I need to put OFF uplink adjust at HRD and do by manual to go higher or lower in Uplink to listen my self. Okay I know the UHF doppler is higher than VHF, but I presume that HRD always adjust the better adjustment for UP and DOWN.
At FM satellites this not happen
This make me confused becuase if I have new kepler downloaded, why my audio always comes above or below the downlink who Hamradiodeluxe adjust on my FT-847.
73 Fabiano Moser CR7/PY5RX ARISS-PORTUGAL (Amateur Radio on the International Space Station) Representative at Teleconference and Portugal Telebridge Coordinator. AMRAD/AMSAT-CT http://www.amrad.pt/ariss.php
2009/7/2 i8cvs
----- Original Message ----- From: "Fabiano Moser" To: "amsat-bb" Sent: Thursday, July 02, 2009 6:19 PM Subject: [amsat-bb] How you do DOPPLER correction in Linear Transponders?
Dear friends,
We know that some Satellite Operators use diferent system to doppler control.
For Linear Transponder
- Adjust uplink and downlink automatic by CAT? (Not always woks, some
times I´m up or down from the computer adjust) 2) Adjust uplink and downlink manual 3) Keep Uplink fixed and adjust only the Downlink frequency.
What is the more indicate method to use? FT-847 have knob to adjust Uplink without change downlink VFO, and I´m using it to keep my voice in downlink at same downlink much I can.
But I know some operators use fixed uplink.
How you do?
--
Hi Fabiano, CR7/PY5RX
My preferred metod (from OSCAR-6 to AO40) is to adjust only the Uplink frequency in order to keep my voice in downlink as clear as possible exactly as you actually do manually. If the station in contact with me moves up or down I invite the operator to move the VFO of his TX to come again in my constant receiving frequency.
73" de i8CVS Domenico
-- 73 Fabiano Moser CR7/PY5RX ARISS-PORTUGAL (Amateur Radio on the International Space Station) Representative at Teleconference and Portugal Telebridge Coordinator. AMRAD/AMSAT-CT http://www.amrad.pt/ariss.php
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