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NOKIA Base Station Frequency Reference

Wilson - 3rd February 2018  (07:46 GMT)

I want how to troubleshoot the alarm of difference between BTS master clock and reference frequency

DIBYA RANJAN MOHARANA - 17th March 2017  (08:05 GMT)

what is dac alarm.. and effect of dac alarm.. and resolution please suggest

Anyaogu Arinze C. - 26th November 2015  (11:27 GMT)

What page on the Flexi Multi Radio will I set the DAC value?

sashi - 21st February 2015  (08:43 GMT)


I had big query in tch drop to reduce my tch drop

Rendy Arizal - 21st October 2013  (09:32 GMT)

How to clearing alarm 7602 "Difference between current and last stable DAC words" for Flexi Multiradio EDGE BTS.
Transport crossconnection with Eth.


Fekede taeme - 22nd July 2011  (19:21 GMT)

Difference between PCM and base station frequency reference.
02 01 07 96 00 00

what is this alarm for?

Sham - 13th December 2010  (10:02 GMT)

Have any one cant tell me the clock control Value of nokia ultra BTS

KJB - 2nd June 2010  (12:58 GMT)

7601 appears due to DAC value drift,
It has many causes.
1-BSC Clock problem.
2-Transmission problem(Unstable)
3-BOIA faulty.

Kindly check BSC clock oscillator value,if Clock,Transmision and BOIA are OK,

then Adjust DAC value on BTS site 2048 and send it to BTS through BTS manager.
after this refresh OMU by MML.

It should be clear.
Some time this problem appears on many sites connected one HUB.


kamal kotecha - 6th May 2010  (13:38 GMT)


Dac STands for Digital to Analog Converter..

For measuring Abis purity,BTS continuously monitor value & adjust DAC word if required..

Ashish kumar - 26th April 2010  (09:59 GMT)

How will alarms 7604,7601,7745,7704,7606 will effect the RADIO kpi? can anyone explain that for each of the above alarms........THNX

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Last modified: 17 May 2017

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