fitted in conjunction with Type 14 from which the power supply is
obtained. Short range communications of approximately 5 miles only on
MF. Its principle function is to
transmit on HF when the deck insulator is too wet [rough seas] to permit
the use of the Type 14 ARC transmitter. The
Type 14 was the very first Arc in the RN and was followed by only five
others viz., a total of 14-19.
Associated Wavemeters
Small Schematic and photographs
The funny symbol at 10 above is a fixed capacitor of large size.