Radio Navigation Equipment - Signalspaning.se

Radio SetSCR-610 is a short range ground communication
equipment used with the AAF InstrumentAp -
proach System. It is a portable, low-powered FM transmitter
and receiver, forming part of Instrument Landing
Equipment SCR-241-A, AN/MRN-1, AN/MRN-2, AN/MRN-3
and AN/CRN-7 It was developed for use in ground communications
and has been adapted for use in communicating
with control towers in connection with airport control. A
further application is being made in installations in aircraft
in which electrical power supplies preclude the use
of a.c. operated equipment.
It is a battery operated low-powered FM transmitter-receiver
equipment operating over the frequency
range 27-38.9 MC.
The equipment is furnished to the AAF by ASF
and AAF requirements are included in the requirements
for the various.equipments with which it is used.
Maintenance Equipment ME-13 is required for
maintenance and tuning of the set.
POWER INPUT 20 WATTS AT 6.2
VOLTS
32 WATTS AT 12.4
VOLTS
POWER OUTPUT 2 WATTS AVERAGE
FREQUENCY 27-38.9 MC
TYPE OF SIGNAL FM
RANGE 5 MILES
TUBE COMPLEMENT
NO. TYPE NO. TYPE
1 1LH4 1 1R4/1294
1 1LC6 1 VR-90-30
5 1LN5 4 3D6/1299
2 3B7/1291 1 CK-1005
*ERIE", 19
Radio Set SCR610O- Installed in AN/MRN-3 Marker-
Beacon Transmitter Truck
Radio Set S JR-610 is a short range communications equipment used principally for communication between the
various transmitters of the AAF Instrument Approach System and the airport control tower.
May 1945
SCR- 610