[amsat-bb] Ao 73 problems
WB4SON at gmail.com
Sun Oct 25 15:37:48 UTC 2015
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.
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
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 at bigpond.net.au> wrote:
> 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 at amsat.org] On Behalf Of mm0kjg via
> Sent: Sunday, 25 October 2015 21:55
> To: amsat-bb at 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
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> are solely those of the author, and do not reflect the official views of
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
More information about the AMSAT-BB