[amsat-bb] Re: Operating linear transponders - Newbie.
Hi Peter, Dave is correct; tune the higher frequency. See this link for a more detailed explanation: http://www.amsat.org/amsat/features/one_true_rule.html 73 and best DX, Tony AA2TX --- On 12/31/2013 1:25 AM, David Johnson wrote: Hi Peter. If you don't have computer control, always tune the higher frequency. Ie the one with the most doppler. For ao73 keep the rx fixed and adjust the uplink as the doppler changes. 73 Dave g4dpz On 30 Dec 2013 23:39, Peter Wilsonprot...@virginmedia.com wrote: Hi all, I have just tried working through AO73, with limited success. I need some very basic help with satellite operation. I have an IC-9100, I set the uplink and downlink to mid-range (435.140Mhz and 145.960Mhz), then call CQ until I hear my own signal which has worked every time, then I get problems. When someone calls me back I panic, what do I do when the doppler kicks in, do I move both TX and Rx, or do I just move my Rx to follow the other guy. I haven't managed to get SatPC32 controlling my rig yet, also, I want to learn the hard way - manually. Can someone point me to an article that explains in detail how to operate. I know this is a very basic question, but we all have to start somewhere. I have managed tow contacts so far. First was AO73 and tonight with FO29. Not sure how I did it, but thanks to ON5NY and EM5SR. Happy New Year Peter G8KEK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Operating linear transponders - Newbie
Peter, When you made 2 contact already you did Perfect. With a capital P. People will respond with how to handle doppler, but reality is that it can be difficult, even when you have an automated setup. Keep going, you're doing just fine! Henk, PA3GUO - Hi all, I have just tried working through AO73, with limited success. I need some very basic help with satellite operation. I have an IC-9100, I set the uplink and downlink to mid-range (435.140Mhz and 145.960Mhz), then call CQ until I hear my own signal which has worked every time, then I get problems. When someone calls me back I panic, what do I do when the doppler kicks in, do I move both TX and Rx, or do I just move my Rx to follow the other guy. I haven't managed to get SatPC32 controlling my rig yet, also, I want to learn the hard way - manually. Can someone point me to an article that explains in detail how to operate. I know this is a very basic question, but we all have to start somewhere. I have managed tow contacts so far. First was AO73 and tonight with FO29. Not sure how I did it, but thanks to ON5NY and EM5SR. Happy New Year Peter G8KEK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Operating linear transponders - Newbie.
Hi Peter. If you don't have computer control, always tune the higher frequency. Ie the one with the most doppler. For ao73 keep the rx fixed and adjust the uplink as the doppler changes. 73 Dave g4dpz On 30 Dec 2013 23:39, Peter Wilson prot...@virginmedia.com wrote: Hi all, I have just tried working through AO73, with limited success. I need some very basic help with satellite operation. I have an IC-9100, I set the uplink and downlink to mid-range (435.140Mhz and 145.960Mhz), then call CQ until I hear my own signal which has worked every time, then I get problems. When someone calls me back I panic, what do I do when the doppler kicks in, do I move both TX and Rx, or do I just move my Rx to follow the other guy. I haven't managed to get SatPC32 controlling my rig yet, also, I want to learn the hard way - manually. Can someone point me to an article that explains in detail how to operate. I know this is a very basic question, but we all have to start somewhere. I have managed tow contacts so far. First was AO73 and tonight with FO29. Not sure how I did it, but thanks to ON5NY and EM5SR. Happy New Year Peter G8KEK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
