On Sat, 4 Jul 2009, nj2e wrote:

> I am trying use the "HFEST-18J" tactical call sign to announce our
> hamfest on RF, using my DR-135 and T2-135. When I attempt to write
> to the T2, I get "Invalid callsign" error. I put my callsign in the
> text box for proper identification. So can I write a tactical call to
> a T2-135 or not? In advance thanks for the replies. 73s Don NJ2E

You can't do anything except 0-15 after the dash on RF.  It's a
limitation of the AX.25 protocol, not of the T2-135 specifically.

There are exactly 4 bits available there in the packet header, which
can be used to represent 16 numbers from 0 to 15.

-- 
Curt, WE7U.                             archer at eskimo dot com
http://www.eskimo.com/~archer
   Lotto:  A tax on people who are bad at math. - unknown
Windows:  Microsoft's tax on computer illiterates. - WE7U.
The world DOES revolve around me:  I picked the coordinate system!"

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