The RA3702 Dual HF Receiver
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This post is part of the series 'The Racal 3700 Series':
Next post in the series: The TA3762 250W Linear Amplifier
- The RA3700 Series
- The RA3701 HF Receiver
- The RA3712 Dual HF Receiver
- The MA3752 Dual HF Drive Unit
- The RA3702 Dual HF Receiver
- The TA3762 250W Linear Amplifier
- The MA3772 1KW HF Combiner
- The MA3752 driving a TA3762 PA
September 2019
The RA3702 is issentially two RA3701s in the same rack-space. However, like the RA3712, the basic configuration takes up nine of the available ten slots. Whereas my RA3701 has a Sub-Octave-Filter before the RF Front-End and an additional 100KHz IF Output Module, my RA3702 has neither. Like the RA3712, the RA3702 employes the higher spec. Racal-Dana 9420 5MHz reference Oscillator. For a description of the plug-in modules see the page on the RA3701.
Above, rear view of my RA3702. Note the epoxy-resin between the Main-Voltage Selector and the IEC Mains connector. Although I have on one occasion replaced the entire Schaffner unit with a brand new one, I have since learned that it is possible to simply hack-saw the exploded filter/connector part off and replace it with a 'plain-vanilla' IEC plug ... allowing me to retain the mains-voltage selector.
Next post in the series: The TA3762 250W Linear Amplifier