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[aprssig] [Fwd: Pennsylvania Ballon Launch- APRS]

scott at opentrac.org scott at opentrac.org
Fri Jun 9 15:23:12 UTC 2006


> Will this callsign work?
> 
>      An APRS beacon signal will transmit on 144.390 MHz,
>      using the call sign NJ2BB-62.

Nope.  There are only four bits in the address field to store the SSID.
That means it can only be from 0 to 15.  Even if the TNC, tracker, or
software program accepts -62 as an input, there's no way it can transmit it
over AX.25.  On the Internet or using some other format (like PSK31) you
could get away with it, but not with normal packet.

Scott
N1VG







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