England — CML's CMX865A DTMF is a multi-standard modem for use in wireless local loop, short message service telephone-based information and telemetry systems. Flexible line driver, hybrid and ...

It relies on the fact that almost every ham radio designed for field use incorporates a DTMF encoder in the microphone or in the transceiver itself.

Flexible line driver, hybrid and receiver circuits are integrated on-chip, requiring only passive components to build a 2 or 4-wire line interface. A high-quality DTMF decoder offers excellent ...