TM 11-5841-283-12/NAVAIR 16-30APR39-1
4-6. INITIAL INSTALLATION OF EQUIPMENT. (CONT)
SPIRAL ANTENNAS
The placement of the spiral antennas is critical for maximum performance of the radar signal
detecting set.
One antenna should be mounted at each of the four intercardinal axes as follows:
Forward right (unit 6) at 45 (AS2892 left spiral)
Aft right (unit 7) at 185 (AS2891 right spiral)
Aft left (unit 8) at 225 (AS2892 left spiral)
Forward left (unit 9) at 315 (AS2891 right spiral)
The antennas should also be mounted with a depression angle of 0 to 20 and all antennas
should be mounted at the same angle.
4-8