[amsat-bb] Re: SO-50
bruce.semple at verizon.net
Sat Aug 28 09:15:56 PDT 2010
Thanks for the reminder -
I forgot about the 74.4Hz "turn on" tone -
I had a quite pass last night -- I was hesitant to transmit until
I heard somebody on the downlink. Then I tried a test call (with
the 67hz on) - and
did not hear my downlink -- adding to the puzzle.
jesh - yet another "middle age moment"
At 08:31 PM 8/27/2010, Dobarrows wrote:
>Sometimes I have not heard SO-50 on late night passes. Then I key up
>my transmitter with a 74.4 hz tone. After that, I key my transmitter
>on and off with a 67hz tone while tuning the receiver set in cw mode
>until I find a carrier that goes on and off with my keying somewhere
>near where I expect the downlink to be. I then give my station ID and
>change the receive mode to fm. I know that SO-50 is alive and well.
>I don't know if it is well understood, but SO-50's downlink will only
>be on as long as there is a signal in the uplink with the 67hz tone on.
>You let up on the mike and the downlink ceases until someone else
>transmits. AO27 and AO51 have continuous carriers when turned on so
>they are easier to locate when there is little activity. (Little
>activity doesn't happen often here in North America on AO27 and AO51).
>Sent via AMSAT-BB at 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
More information about the AMSAT-BB