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[aprssig] Using a TNC as a CW Beacon Only

Jason Winningham jdw at eng.uah.edu
Sun Feb 19 13:13:24 UTC 2006


On Feb 18, 2006, at 11:16 PM, <scott at opentrac.org>  
<scott at opentrac.org> wrote:

> I made an MR6 clone plus OT in one board, and actually launched one  
> example
> on a few party balloons, but it's got really awful spurious  
> emissions.  And
> that's not just my clone - it's just as bad on the genuine Ramsey  
> board.


I added a large (1M, IIRC) resistor between the PIC and the MR6 to  
keep it from splattering so bad.

Those spurs can be useful, if your APRS payload fails and you're  
locating via DF...

-Jason
kg4wsv

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