MRC DRS4000, User And Technical Manual

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Installation 4-5 DRS4000 Receiver User and Technical Manual
4.7 Grounding
CAUTION Be sure the equipment grounding follows
applicable electrical codes.
CAUTION
Never modify a grounded power plug to connect
to an ungrounded receptacle.
For safe operation, all equipment must be properly grounded.
• Connect all equipment on a rack to a common ground.
• Connect the common ground to a site ground.
• The ground wire should be as short as possible, and
follow the straightest path possible.
4.8 Testing the Antennas
All antennas for your configuration are tested at the factory to
ensure proper operation. Before installing them on a tower,
mast, or building at the receive site, you should test them on the
ground to ensure that they are still operating properly.
CAUTION Test each antenna on the ground before
mounting it on a tower or building.
CAUTION Verify that all packing material has been
removed from the antenna.
To test one or more antennas on the ground, follow these steps.
1. Set each antenna, the block downconverters BCDs),
and the DRS4000 Receiver on a worktable.
2. Connect a spare RF cable between an antenna and a
BCD. Repeat until all antennas and BCDs are
connected. Refer to
Figure 4-2 for connections
details.
3. Connect a spare UHF cable from each BCD to an
BCD connector at the rear of the receiver. For
example, for a four antenna system, use the
BCD 1 ,
BCD 2 , BCD 3 , and BCD 4 connectors.
Figure 4-2: Testing the Antennas
4. Set up a test transmitter near the receive antennas,
but not too close so as to over drive the -20 dBm input.
Power it up and set it to standby mode.
5. Configure the transmitter for the settings you typically
Test Transmitter
Antenna 1
BDC 1
DRS4000
BDC1
RF Cable
UHF cable