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*NOT SUPPLIED
NOTE
TAMPER LOOP NEED NOT BE
CONNECTED FOR LOCATION TESTING.
ME 6350-262-14/2/2-3
Figure 2-3. Receiver location - test setup.
2-8. Simulated Forced Penetration Test
each receiver is adjustable over a range of approxi-
mately 20 dB. Thur the relative sensitivity of
The simulated forced penetration test must be
individual receivers can be adjusted to compensate
performed at each receiver location. This test verifies
for differences in locations. To maximize system
the adequancy of the receiver location for detecting
signal-to-noise ratio it is desirable to operate the
forced penetration through the most likely areas of
receiver requiring the highest sensitivity near
entry.
maximum gain.
a. Pretest Conditions. All test should be conducted
(1) Set the receiver GAIN control (fig. 1-1) to 8.
in the worst case situation with background turbul-
(2) Set the processor SENSITIVITY control (fig.
ence at its maximum anticipated level. Air con-
1-1) to an initial setting of 1.
ditioners, heaters, and machinery that would nor-
(3) In the processor, insure that the band
mally operate during the hours that protection is
rejection filter is bypassed (out of the circuit). When
required should be turned on.
bypassed, terminals 2 and 3 of TB3 (fig. 1-1) are
b. Pretest Adjustment. The sensitivity range of
jumpered together.
the processor is adjustable over a range of 24 dB and
2-5

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