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[aprssig] Building a new digi

Scott Miller scott at opentrac.org
Thu Apr 2 16:43:45 UTC 2009


> I haven't tried SETPOWER since that first time. It was probably on one
> of the first T2-301s that you ever sold. I've got the latest build as of
> a few days ago. I'll do some more decode comparisons soon.

In the process of generating a table of SETPOWER values, I got a lockup 
myself.  I made a couple of tweaks and it hasn't happened since, but 
I'll keep testing.  I think the important thing is to make sure the PA 
has completely shut down before writing anything to flash memory and 
risking corruption from big power transients.

> As you mentioned once previously, it's a "write only" function right
> now. What is the default SETPOWER setting? In any T2-301s that you
> have adjusted, what SETPOWER setting corresponds to 5W out?

The SETPOWER setting is saved in the radio, so the default is whatever 
it was factory tuned to for 5 watts.  Depending on the voltage, 5 watts 
should be around 42 to 44.

Scott
N1VG




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