Installation Manual

3-2 Installation
MK-MAN-01 CarrierWave Digital Radio
appears damaged. If any of the listed parts are missing, call the distributor or the factory
immediately to resolve the problem.
3.2 Notices
CAUTION
IF USING EXTERNAL ANTENNA OPTION (SEE FACTORY FOR DETAILS), DO NOT
OPERATE UNITS WITHOUT AN ANTENNA, ATTENUATOR, OR LOAD CONNECTED TO THE
ANTENNA PORT. DAMAGE MAY OCCUR TO THE TRANSMITTER DUE TO EXCESSIVE
REFLECTED RF ENERGY.
ALWAYS ATTENUATE THE SIGNAL INTO THE RECEIVER ANTENNA PORT TO LESS THAN
–20 dBm. THIS WILL PREVENT OVERLOAD AND POSSIBLE DAMAGE TO THE RECEIVER
MODULE.
WARNING
HIGH VOLTAGE IS PRESENT INSIDE THE ODU and IDU WHEN THE UNIT IS PLUGGED IN.
TO PREVENT ELECTRICAL SHOCK, UNPLUG THE POWER CABLE BEFORE SERVICING.
UNIT SHOULD BE SERVICED BY QUALIFIED PERSONNEL ONLY.
3.3 PRE-INSTALLATION NOTES
It may be useful to gain familiarity with the CarrierWave Digital Radio via back-to-back bench
testing prior to final installation. We highly recommend installation of lightning protectors on the
ODU/IDU Interconnect Cable to prevent line surges from damaging expensive components.
3.3.1 Back-to-Back Bench Testing
Back-to-back bench testing prior to final installation is highly recommended in order to gain
familiarity with the product. This test requires external antenna support. The following additional
equipment is required for back-to-back testing:
• Low-loss cables, N-male connectors on ODU interfaces.
• Four Inline RF attenuators, 40 dB each (or replace two with single 80 dB attenuator), rated for
5.8 GHz.
The IDU and ODUs must be configured in an operational configuration and set-up as shown in
Figure 3-2. When equipment is connected in operational configuration, no errors should be
reported on the front panel.