Sunday, April 15, 2012

UZ7HO AX.25 sound card modem

I tried to experience the UZ7HO AX.25 sound card  modem. The program can be downloaded from:
http://uz7.ho.ua/index.php?lang=eng&id=4
I installed it on my Windows 7. After launching the program, I set the modem baud rate to 1200bps, and monitored the APRS frequency on 144.390Mhz. With the internal mic, the signal shows on the waterfall but is not decoded. I tried to raise the mic gain from the menu but it does not seem to work - i.e. nothing happens after I select the menu item for setting the input gain. I will read the manual again thoroughly to see if there is something I may be missing.

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