[aprssig] 9600? Faster?
Curt Mills archer at eskimo.comThu Jul 7 05:54:46 UTC 2005
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On Wed, 6 Jul 2005, Phillip B. Pacier wrote: > We've been doing some experiments in So Cal with 9600 APRS. Frequency in use > here is 438.975. Equipment generally being used on the digi/igate/home client > end is the KPC 9612, and mobiles use D7/D700 equipment. Initial tests show > that it works better than most people will tell you. I'll keep you updated. Per Bob King, K7OFT, posted on the NWAPRS list just today: "UHF APRS SYSTEM IN PUGET SOUND AREA IS ON 440.875 MHz Simplex 9600 Baud." That's in the Seattle, WA, area. He also mentioned that it is important to adjust the deviation with a good service monitor to 3kHz. Bob Donnell, KD7NM, mentioned this: "With several 9600 baud projects under our belts over the years, here in the Seattle area, we've found that +/- 2.75-3.00 kHz deviation to be the target range, when used with filters designed to work with a +/- 5 kHz deviation FM environment." -- 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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