How to fix this alarm "RF UNIT RX CHANNEL RTWP/RSSI Unbalanced "

[brianm]

Experts

Whats the best way to resolve this alarm "RF UNIT RX CHANNEL RTWP/RSSI Unbalanced "

In most cases we dont see any corresponding degradation in site performance but this alarm regularly pops up.

Have tried to change HW - radio, connectors and jumpers but the alarm still come up once in a while

Regards

[gunpowder]

Dear,

This alarm is may be due to Software conflict installed on BTS

[didemir]

we had a similar situaiton and fixed after RRU change. did you try it?
we also checked many things and sent a ticket to huawei before but finallt it came to hardware end of the day.

[madeira]

There is just one carrier? If you have 2 carries try to load sharing...some cases this alarms happpen in this situation.
Try to change RRU

[emuvars]

How about RTWP performance?
If RTWP high this alarm can rise.
However you can check RTWP alarm threshold in M2000

[djreaper]

Simply change the jumpers they are faulty...

[brianm]

Simply change the jumpers they are faulty...

Thanks. Changing cables seems to be working in most cases

[putrawhisnu]

there are other posting for this similar issue, please search it.


thanks

[jarf3110]

Hi, probably you have jumpers crossed between the main and diversity, open the LMT and then go to the monitor tab, and find an option that is called Board RTWP, find the RRU board number and then yo can see if the rtwp between both ports is unbalanced. if the difference is too much you have your jumpers crossed, try discarding first the jumpers coming from antenna , later the filter (if you have) and finally the RRU.

cheers

[juanpico]

Experts

Whats the best way to resolve this alarm "RF UNIT RX CHANNEL RTWP/RSSI Unbalanced "

In most cases we dont see any corresponding degradation in site performance but this alarm regularly pops up.

Have tried to change HW - radio, connectors and jumpers but the alarm still come up once in a while

Regards

We have experience this before, found out to be cross jumper installation during cable regrooming activity