Radio Navigation Equipment - Signalspaning.se

Radio Receiving Equipment AN/ARR-1 (Navy ZB
Adapter) is an airborne compass adapter used for reception
of signals covering the range 234 to 258 mc, amplitude modulated
by a keyed rf signal in the 540 to 830 kc. range.
When the pilot is provided with a decode card,
he is able to use this equipment to interpret the directional
signals transmitted by the Navy Model YG Homing Beacon,
or other homing beacons operating a rotating, directional
antenna and transmitting within the frequency range of the
receiver. In addition to the 12 30-degree direction sectors
which are separately identified by code letter, a true north
position relative to the transmitter is indicated by the code
letter to assist the pilot in compass orientation.
Effective range of this equipment is 40 to 70
miles at 10,000 feet, with greater range possible at higher
altitudes.
Test equipment required for maintenance includes
Test Set TS-1/ARR-1 and Test Oscillator TS-24/
ARR-2.
There were no Army Supply Program requirements
as of 1 February 1945.
POWER INPUT 6 WATTS ( 28 VOLTS
3 WATTS 250 VOLTS
FREQUENCY 234-258 MC
TYPE OF SIGNAL CW: MCWe VOICE
SENSITIVITY 40 MICROVOLTS
SELECTIVITY 20 DB. DOWN AT 1.5%
OFF RESONANCE
RANGE 40-70 MILES AT 10.000
May 1945
FEET
2j4g-jjjW
AN/ARR- 1
Installation photograph indicates (1) Relay RE-1/ARR-1,
and (2) Radio Receiver R-1/ARR-l
TUBE COMPLEMENT
NO. TYPE NO. TYPE
Used with a suitable reoeiver, Radio Receiving Equipment AN/ARR-1 permits aircraft to home on a ZB
keyed transmitter which sends out coded signals to each 30 0 of 3600
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