TRANSVERTER INTERFACE FOR THE IC746 TRANSCEIVER(and other HF transceivers)

摘要

The technique shown here, using a commercial transceiver's ALC input to control the level supplied to a transverter and backed up with additional independent overload detection circuitry, provides a safe interface that will prevent damage to transverter equipment if connections are left off or fail.1 The only residual danger that can still occur is if the transmitter cannot operate safely into an open circuit - but this is only likely with ancient valve PA rigs and these often have a low level output (with the PA heaters switched off) for driving transverters anyway……