TM 9-4931-355-14
mode of test, an acceptable receiver sensitivity is
unit. The receiver responds to the light from the test
indicated by a deflection in the white band. In each
lamp as if it were background light from a target. The
case, the color of the acceptable band corresponds to
receiver than develops an automatic gain control (agc)
the color of the mode indicator lamp that is illuminated.
voltage which is used by the receiver to maintain the
In either test, a deflection into either of the black regions
noise count rate at a constant value. The video signal is
indicates an out-of-tolerance condition.
used to trigger a one-shot multivibrator which develops
an output voltage in conjunction with the agc voltage.
This voltage is applied to the RCVR-XMTR STATUS
1-6. Tabulated Data.
meter, which provides an indication of go-no-go receiver
a. Shipping
Information
and
Physical
sensitivity.
Characteristics. The physical characteristics of the
e. The face of RCVR-XMTR STATUS meter has
carrying cases for the test sets and alinement kit are
two scales: one for the transmitter mode and one for the
listed in table 1-4.
receiver mode. Each scale consists of a color-coded
b. R/T Tester Performance Characteristics.
band bracketed by a black region.
During the
Performance characteristics of the R/T tester are
transmitter mode of test, a deflection of the meter
summarized in table 1-5. Refer to TM 9-1240-36934 for
needle into the red band indicates that the transmitter
data on the laser range finder units.
output energy is within tolerance. During the receiver
Table 1-4. Test Sets and Alinement Kit Shipping Data
Length
Width
Height
Volume
(in.)
(in.)
(in.)
(cu. ft.)
Item
approx
approx
approx
approx
Test set (10559658)
19
23
15
3.8
Test set (11738864)
29
40
18
12.1
Alinement kit (11738863)
13
17
15
1.9
R/T holding fixture (11738862)
29
19.75
12
Table 1-5. R/T Tester Performance Characteristics
Power Requirements
Voltage
(supplied by hot mock-up)
Current
Receiver test mode:
2 amperes (maximum)
Transmitter test mode:
150 milliamperes
(maximum)
Operation
Optimum operating temperature
7510F
Operating temperature
7030F
Altitude
10,000 feet
Other
Storage temperature:
-65 to +160
F
1-10
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