ANTENNA MONITORING SYSTEM (AMS) USER MANUAL
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1 EQUIPMENT DESCRIPTION
1.1 EQUIPMENT BOCK DIAGRAM
The AMS uses a diplexer to pass the Public Safety downlink/uplink (VHF/UHF/700/800) frequencies and
inject/extract the unlicensed 900MHz frequency to monitor the antenna RFID tags. The unlicensed 900MHz
frequency (user definable in the GUI) is pulsed from the AMS throughout the passive DAS network/antenna
arrays, the antennas tag information is then reflected to the AMS. The AMS cross-references the received tag
codes against a list of existing tag codes to see if any RFID tags are missing. The missing RFID tags will
create a log in the “Alarm Log” and trigger an alarm if the “Polling” parameters (configured by installer) are met
in Auto Mode or if “Status” scan is run in Manual Mode.
Figure 2: AMS System Block Diagram
