[amsat-bb] AO-40 MB Guardband

["Vince R." <vincesr@xxxxxx>]

This is not anything official. Just a polite personal request.

Please try to avoid swishing or transmitting  on or near 
the the uplink freq that corresponds to the Ao-40
MB (middle beacon).  On Orb 263 t on 05-11-01
at 13:40 UTC there was at least one North American
station interfering with the beacon. Even a brief dit or 
two will corrupt an entire telemetry block. 

It is now going on 15 minutes with a station(s) 
testing on the MB frequency....

Please remember that this is not a LEO bird. 
Obliterating the telemetry affects almost an entire hemisphere!
If you are not sure of the doppler or the math, please do not 
try to work just 5 Khz from the beacon. Needless to say, 
(I hope) that adjusting uplink power by comparing your
signal to the MB while on the MB frequency is not 
a good technique.

Thanks for being considerate to those of us receiving
telemetry. 

Flames welcomed... And quickly plonked!
Constructive criticism always read.

Vince
KD7AI

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