VSWR (Route B)

[justdream]

Dears,

Could you kindly support:
When I check VSWR for 2G sites, it always give me measurments like below one:

Standing Wave Ratio(Route A) = 1.1
Standing Wave Ratio(Route B) = NULL

As you see, Route B is always NULL
and sometimes there's problem in Route B, how could I configure my system to force it measure Route B VSWR as well?

[tharinduwije]

I have seen this when running DSP VSWR in NodeB. I taut its because VSWR is below one (<1) or when you don't have diversity defined

[justdream]

I think it could be because of Diversity,
Do you have any idea how to confirm it's defined or not? and how to define it?

[tharinduwije]

I think it could be because of Diversity,
Do you have any idea how to confirm it's defined or not? and how to define it?
LST SEC--> Antenna Magnitude (Should be 2 if diversity defined)

[justdream]

LST SEC--> Antenna Magnitude (Should be 2 if diversity defined)

Dear, I didn't find this command
Is there other method to check
By the way, I'm speaking about 2G

[justdream]

Dears,

Could you kindly support:
When I check VSWR for 2G sites, it always give me measurments like below one:

Standing Wave Ratio(Route A) = 1.1
Standing Wave Ratio(Route B) = NULL

As you see, Route B is always NULL
and sometimes there's problem in Route B, how could I configure my system to force it measure Route B VSWR as well?

Dears, an y idea about this issue

[esoestemp]

Hi,
VSWR is a measure of TX path quality.
If you does not have a transmitter defined on the particular branch you would not have a result from the command.

[Djemai]

Hello,
the VSWR test only can be runned on TX olny .
if you want it to be measured from RX then you should exchange between them

[bluep]

Why don't you use Site master or bird to measure offline ? It's the best way to measure SWR

[justdream]

Why don't you use Site master or bird to measure offline ? It's the best way to measure SWR

I'm searching for quick & automatic way to check VSWR for all Network sites
but based on all comments it seems that we could only remotely check one Route and could check both
which means we are working blindly 9maybe the other route has VSWR problem and we don't know about it) !!

[bluep]

Yes, as Djemal mentioned, we could only check in Tx Path
However, the threshold should be defined in 3 ranges: 1.3 - 1.5 and > 1.5
In ALU GSM, Twin Trx TGT card can transmit in both side , so we can measure both of them
However, we always get 1.1 value in most of sites, and I don't trust them so much.