TM 11-5841-283-34-1/NAVAIR 16-30APR39-2
2-7. BLOCK DIAGRAM DESCRIPTION.
ANTENNA. Signals received from the FWD RT, FWD LEFT, AFT RT and AFT LEFT
1
antenna are sent to the FWD and AFT receivers. Signals received from the LOW BAND antenna
are sent to the comparator.
RECEIVERS. Signals received from the FWD RT, FWD LEFT, AFT RT, and AFT LEFT
2
are filtered, detected, amplified and sent to the comparator.
3
COMPARATOR. Signals received from the receivers and LOW BAND antenna are
sent to video processors in the comparator. Video processors delay sending the signals to
the radar signal indicator until logic circuits determine which signals to send.
4
RADAR SIGNAL INDICATOR. Signals received from the comparator are shown on a
CRT screen.
5
CONTROL UNIT. Selects logic circuits in the comparator to control the signals sent
to the radar signal indicator. Operates a self-test circuit to check that the system
operates properly.
2-7
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