User's Manual

MODEL 2130 MARKER BEACON
5-2 Rev. A April, 2005
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purposes without written permission from SELEX Sistemi Integrati Inc.
5.2.4.2 Procedure
a. Log onto the Marker Beacon with the PMDT.
b. Measure the Modulation level by reading the Monitor>>Data>>Integral
c. If the Modulation Level is not within the tolerance in Table 3-1, take appropriate action.
5.2.5 Measurement of Modulation Frequency
This procedure provides a method to measure the Modulation frequency of the marker transmitter.
5.2.5.1 Test equipment required
PMDT
5.2.5.2 Procedure
a. Log onto the Marker Beacon with the PMDT.
b. Measure the Modulation frequency by reading the Monitor>>Data>>Integral
c. If the Modulation Frequency is not within the tolerance in Table 3-1, take appropriate action.
5.2.6 Check Automatic transfer/shutdown
5.2.6.1 Test equipment required
Stop watch or suitable timing device.
PMDT
5.2.6.2 Procedure
Note: This test will take the facility offline, issue a NOTAM.
a. With the Marker Beacon in Normal condition, remove the monitor return cable.
b. Measure the time from cable removal to shutdown (single equipment) or transfer (dual equipment).
c. Verify that the measured time is within the tolerance for Table 3-1.
d. For Dual equipment measure the time to shut down for the standby transmitter.
e. Verify that the measured time is within the tolerance for Table 3-1.
f. Restore the Marker Beacon to Normal.
5.2.7 Check Alternate equipment
5.2.7.1 Test equipment required
None