The GRC-3030 is a nice design for the era it stems from. Though built in one case, receiver
and transmitter are separately tuned - and indeed this is a common denominator
with the GRC-9. As it is fully tubes, it has it's dynamotor power supply.Quite different from other designs I know from it's period is the approach where a separate crystal calibrator is actually part of the system. It reminds me of older sets - but even there, these crystal calibrators were not a permanent part of the system.
The GRC-3030 is definitely geared to vehicular applications. One
could hardly call it portable - well, a two man lift at
best. Sometimes it
is dubbed the Dutch version of the GRC-9, but I do differ to disagree, if
only on these grounds. The GRC-3030 is by it's weight and construction meant to be vehicular, I'd say.
The GRC-9 can - and was - used as a man pack radio. It even had a backpack.
However, they work together quite well - the GRC-3030 was designed for
getting along with the GRC-9, both were used within the same setting.
Also, the separate audio junction box seems to be a special development, at least one I have not witnessed elsewhere.
Five main parts:
Transceiver - built as separate transmitter and receiver
Power Supply
Crystal Calibrator
Audio Junction Box
Mounting Rack - with two levels
Cabling:
Power to Power Supply
Power to Transceiver
Power to Crystal Calibrator
Crystal Calibrator to Transceiver
Transceiver to Audio Junction Box
Minor parts:
Operator lamp - plugged into tot power supply - reminiscent of 19 set. And very,
very rare it seems.
Canvas Covering
Morse Key
Spare Parts Box
Audio parts:
Loudspeaker
Microphone
Telephone
No known intercom system...