Prototype HF Transmitter

HF Transmitter Block Diagram

The High Frequency (HF) transmitter operated in the 10 metre amateur radio band at 29.450 MHz.  The amplitude modulation was provided by the Telemetry System.  The output power was nominally 250 milliwatts which was considered to be a heavy drain on the battery and so it could be commanded on and off by the Command System.