After working with AO-73 since its launch, I've noticed that the actual uplink frequency is vastly different from the published value, and I'm not the only person to have reported this. I have asked the UK team multiple times to verify the uplink/downlink ratio, but they have never published an update. The end result is that new users can't find themselves on AO-73.
Here is my Doppler.sqf file entry for AO-73. and comments that the required correction is about 18 KHz higher than the published values.
“AO-73,145957.52,435160.48,CW,CW,REV,,, Transponder”
Note that the published figures says that 145.957.5 should be about 435.142.5, so my correction value is about 18 KHz higher than published values.
I would recommend that you try setting your uplink much higher and see if you can find yourself.
73, Bob, WB4SON
On Sun, Oct 25, 2015 at 8:01 AM, Colin Hurst cjhurst@bigpond.net.au wrote:
Kev, Looking at the last pass over VK, 145.950 is not within the pass-band. Try 145.960 which is more central to the pass-band. Not sure of uplink frequencies though. Colin VK5HI.
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of mm0kjg via AMSAT-BB Sent: Sunday, 25 October 2015 21:55 To: amsat-bb@amsat.org Subject: [amsat-bb] Ao 73 problems
Hello all. I seem to have a wee problem with working Ao-73. The problem I cant work it at all. I am hearing people talking but when I attempt to find my downlink nothing heard. I have tried sending cw up and tuning downlink and also tuning uplink and nothing. I have set up tuning for 145.950 down and 435.150 up. Am missing something here? I spoke to my good friend and very good Sat operator Derrick Gm0fmw and he also cant access it with a fairly good antenna set-up. We are both in Edinburgh Scotland Is this the problem? Please all help will be appreciated .
Thanks Kev MM0KJG
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