6-1
Wireless Solutions
DualMode 800 Enclosure
Maintenance Manual
MTX08
Antenna and transmission line tests
6
Antenna direct current continuity
These tests are required for new antennas or antennas suspected of faulty
operation. The tests are service affecting.
The most important consideration of antenna direct current continuity is not
so much the antenna but the transmission line shield. Of course, the antenna
must be electrically connected to the coaxial transmission line, but most
important, the transmission line shield must be grounded for lightning
protection.
The other DC tests serve as more of a record of the resistance of the shield
and center conductor. They may indicate future grounding problems or
identify a change in the antenna dipole condition (open, now shorted or in the
opposite way).
CAUTION
RF Radiation Hazard
All transceiver transmitters must be turned off before
disconnecting or connecting transmit cables to avoid RF
induced injuries.
Summary of Contents for DualMode 800
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Page 6: ...vi Publication history Nortel Networks Confidential 411 2051 500 Draft 00 01 November 1999...
Page 82: ...2 20 Periodic maintenance 411 2051 500 Draft 00 01 November 1999...
Page 90: ...3 8 Test equipment and precautions 411 2051 500 Draft 00 01 November 1999...
Page 100: ...5 6 Master Oscillator tests 411 2051 500 Draft 00 01 November 1999...
Page 106: ...6 6 Antenna and transmission line tests 411 2051 500 Draft 00 01 November 1999...
Page 116: ...8 4 Alarm Control Unit ACU tests 411 2051 500 Draft 00 01 November 1999...
Page 138: ...10 2 ICRM tests 411 2051 500 Draft 00 01 November 1999...
Page 200: ...12 10 Enclosure maintenance 411 2051 500 Draft 00 01 November 1999...
Page 208: ...A 8 Appendix A Frequency table 411 2051 500 Draft 00 01 November 1999...
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