Software and hardware option to convert a Standard Model HF-90 HF transceiver to an Advanced Model HF-90. Replaces standard microphone with a DTMF (QM4002) microphone (does not include speaker*).
Software and hardware option to convert a Standard Model HF-90 HF transceiver to an Advanced Model HF-90. Replaces standard microphone with a DTMF (QM4002) microphone (does not include speaker*).