Free Erlang traffic calculators

The world's first online Erlang traffic calculators

Telecom Traffic Online
  Home | Free calculators | Products | Tech. papers | Forum | About us
Erlang for Excel
VoIP bandwidth calculator
  • VoIP softswitch

    DUAL Softswitch is a complete Voice over IP switching and billing solution.  Flat monthly rate.

    Web control panels; Least Cost Routing; Excel tariff uploads; SIP and H323 support.

    H323 SIP softswitch >>

  • VoIP calling

    Premium quality termination for wholesale carriers with their own VoIP switch.

    44Direct >>

    Our lowest rates for wholesale carriers with their own VoIP switch.

    44Mobile >>

    Our unique online callshop billing system.

    Bill My Calls >>

Tx Power decrease in ALU GSM BTS

Deevv - 31st March 2018  (03:55 GMT)

The tx power is the issue of TGT and AGC.

Swap the TGT card with the repaired one.

bluep - 24th June 2015  (02:39 GMT)

Dear Pix
I found that it's from sector mapping in BTS NEM software. When we don't choose Brigde function, the 8PSK TRE power will increase to max 42 dBm ( GMSK power now is 44 )
However, measurement by driving test is not improve much( 2G idle mode)
So pls give me your advice, does the Brigde affect much to TRE output power ? My teammate said that this brigde is needed for TGT and AGC cabling, and it doesn't affect to output power

pix - 22nd April 2015  (07:56 GMT)

what a weird issue... i guess you will need to raise the issue to alu support (as you probably did already).

thanks for sharing, let's see if anyone else can comment on this.


bluep - 15th April 2015  (03:49 GMT)

Tks Pix for reply
We're using twin TRX of ALU ( GSM ) 2/2/2 configuration
I tried to swap TGT, AGC , but no hope
Many sites in my networks faced with this problem, TX decreasing. Some cells after HW audit ( BTS on/off again ) are return again max power, but the others are not
All of them have same PC defined parameters

pix - 14th April 2015  (20:06 GMT)


that's a very weird issue... how many trx & TGT per sector ?

have you tried swapping those TGT from sector 1 to sector 2 ?



bluep - 14th April 2015  (14:19 GMT)

Dear Experts, pls help me solving this problem
- I found that Tx Power of some sectors in my ALU GSM BTS is different with others, even they have same parameters defined, same configurations
- I tried to replace TGT, AGC or Suma, checked combiner, TX_Power_attenuation parameter....however, they're not return to max power like others
TRE 8PSK Capability ( dbm )
Sector 1: 44.3
Sector 2: 39.8
Sector 3: 39.8
Please see the pic and give me your advice
Tks a lot

Post a reply to this article

Name Enter your name.
Message Enter your message.
Email Optional -  If you enter your email address in this box, then you will automatically be notified if anyone replies to your message.  Your email address will only be published if you pay to post this message.
Please confirm you are human.
Press the button to post your message.
Home | Free online calculators | Products | Technical papers | Forum | Contact us | About us

Last modified: 17 May 2017

Copyright 2017. All rights reserved.