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We are using it for a C4FM repeater. The openspot quit receiving the repeater transmitter after working for a few years. I did a factory reset plus FW upgrade and reprogrammed it but still have the same problem. It works fine in the 436-439.995 Mhz but seems to quit when going to 440 Mhz and above. Any ideas? Thanks K9CZ
Please check antenna connections or try replacing the antenna, and also if the Modem is in C4FM Half Deviation mode, re-run C4FM Half Deviation AutoCal, or manually adjust the C4FM Half Deviation demode mode on the Modem page for the lowest BER.
Norbert "Nonoo" Varga, HA2NON