Honeywell RESCU 406AFN Component Maintenance Manual With Illustrated Parts List page 37

(3) Set the switch on the remote panel to ON for 5 to 10 seconds and make sure that the LED
on the remote panel is continuously on or blinks continuously. This shows that the
transmitter unit is sending a signal.
(4) Set the switch on the remote panel to ARMED after test is completed.
E. Buzzer Test
The buzzer will provide an audible output for the following condition(s):
(1) Self-Test # 1, Para 2.A., and Self-Test # 2, Para 2.C. – two audible beeps, if at least one
LED blink occurred.
(2) Transmitter Unit, Control Test # 1, Para 2.B., will provide audible beeps that the transmitter
unit is in the TRANSMIT mode.
(3) Remote Panel, Control Test # 2, Para 2.D., will provide audible beeps that the transmitter
unit is in the TRANSMIT mode.
F. Antenna Test
With the aircraft receiver or an external receiver tuned to 121.5 MHz, activate either Self-Test # 2,
Para 2.C., or Remote Panel, Control Test # 2, Para 2.D., and confirm that the receiver audio
provides a short audible sweep tone output.
3. Return to Service, Depot Testing
A. Two alternate methods are given for doing Test #1, 2, 3, 4 and 5. The first method uses an HP 8590
spectrum analyzer with a 30 dBm attenuator and the transmitter internal battery. The second method
uses the BT100AVS or AVtriple Beacon Test Set with an optional external HP E3632A power supply.
B. This testing consists of a series of tests that are to be performed on the transmitter unit only. The
transmitter unit must be removed from the aircraft and taken to a laboratory where the tests will be
performed using the test equipment described in the procedures below.
NOTE: AIM or NAIM functionality is confirmed by the programming tool and/or installed self-tests.
C. Method 1 – HP 8590 Spectrum Analyzer
For Test # 1 through and including Test # 7, the transmitter unit shall be powered by its internal
battery. Transmitter activation time for these series of tests shall be limited to less than 30 minutes,
to preserve battery power.
(1) 121.5/243 MHz Power Output, Test # 1
(a)
© Honeywell International Inc. Do not copy without express permission of Honeywell.
COMPONENT MAINTENANCE MANUAL
1152682
Equipment Required
1 HP 8590 spectrum analyzer (or equivalent)
2 30 dBm attenuator
3 Unit under test (UUT) P/N 1152682-2
23-24-02
Page 104
Oct 27/06