DRU transmit tests
11-21
Wireless Solutions
DualMode 800 Enclosure
Maintenance Manual
MTX08
Setting TX audio deviation to site operational level
After the transmit tests, ensure that the deviation level recorded in the
Transmit Audio Level test is the same as the site specific operational level. If
the levels are different, perform the Transmit Audio Level test and change the
level to the site specific operational level by using the T command.
Set the TX audio sensitivity with the T command.
>T
The TRU will prompt as follows:
Enter TX or RX and a decimal dBm value (TX:-28...
-10);(RX:-28...-16)
Enter:
>TX -xx.x
(change this value as required to obtain the operational
transmit audio level)
Note: A change of 1 dBm is approximately a change of 0.27 kHz
deviation.
The Audio Sens TX status on the screen will show:
Audio Sens Tx: -xx.x
(site specific operational level)
Use the C command to turn off the carrier of the TRU.
>C
The PA (TRU transmitter) status on the screen will show:
PA: off
Use the Y command to perform a reset on the TRU after the tests.
>Y
At the command prompt, perform a warm reset on the TRU by entering:
>W
The TRU will return to its normal working condition after the reset.
Disconnect the interface terminal from the TRU.
At the MTX, put the TRU back to service.
Summary of Contents for DualMode 800
Page 2: ......
Page 4: ......
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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