I tried to receive the digipeating signal of local APRS_144.640MHz using Soundmodem_9k6 software. This frequency is defined as APRS_ 9600bps data communication in Japan. APRS frequency is different according to the regions in the world as follows. Japan: 144.640MHz (9600bps GMSK), 144.660MHz (1200bps AFSK) North America: 144.390MHz Europe: 144.800MHz Australia: 145.175MHz New Zealand: 144.575MHz Argentina: 144.930MHz Brazil: 145.570MHz As shown in the previous figure, SSID of 9600bps digipeater is -2 in Japan. APRS recommends as follows Setting of the other SSID. -0 Your primary station usually fixed and message capable -1 generic additional station, digi, mobile, wx, etc -2 generic additional station, digi, mobile, wx, etc -3 generic additional station, digi, mobile, wx, etc -4 generic additional station, digi, mobile, wx, etc -5 Other networks (Dstar, Iphones, Androids, Blackberry's etc) -6 Special activity, Satellite ops, camping or 6 meters, etc -7 walkie talkies, HT's or other human portable -8 boats, sailboats, RV's or second main mobile -9 Primary Mobile (usually message capable) -10 internet, Igates, echolink, winlink, AVRS, APRN, etc -11 balloons, aircraft, spacecraft, etc -12 APRStt, DTMF, RFID, devices, one-way trackers*, etc -13 Weather stations -14 Truckers or generally full time drivers -15 generic additional station, digi, mobile, wx, etc More details, [URL] [URL] [URL] [URL]
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