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[aprssig] PHG calculation formula?

Steve Dimse steve at dimse.com
Wed Oct 25 11:29:55 UTC 2006


On Oct 24, 2006, at 7:18 PM, Alan P. Biddle wrote:

> I was looking for the formula which is used for the PHG values for the
> beacon.  No problem finding a site which would calculate it, but I  
> flunked
> Google 101 on the formula itself.
>
The first hit when I search Google is perhaps the same calculator you  
mention

http://www.nashvilleaprs.net/apps/phgcalc.php

Right below the title is the line:

The following calculator is derived from PROTOCOL.TXT as written by  
Bob Bruninga.

which has this link

http://web.usna.navy.mil/~bruninga/APRS-docs/PROTOCOL.TXT

which has the formula.




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