On Fri, 9 Oct 2009, Tom, ve7did wrote:
I was recently in the Murietta/Temecula areas and was not able to get any data out to the APRS system.
I did talk to one of the operators down there and he says nothing is different from the other parts of the country, but there must be something different. As soon as I left the area to return, everything started tracking again. Nothing was done to my equipment.
Perhaps they're running with no FM pre-emphasis there, as in D700/D710 digi's, while you're using the MIC/SPKR connections to an FM rig (the most common setup for APRS on 1200 baud) and therefore using pre-emphasis? Pre-emphasis differences, too much twist, or too much/little deviation are about all I can think of. If the stations you saw down there were all running D7/D700/D710's, the pre-emphasis idea might fit. -- Curt, WE7U. <http://www.eskimo.com/~archer> APRS: Where it's at! <http://www.xastir.org> 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!" _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
