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CW Measurements - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


web engineer
 Post subject: CW measurements
Posted: Fri May 30, 2008 3:57 am 
 
Captain

Joined: Thu Feb 15, 2007 5:38 am
Posts: 6
Dear Friends,

I'm in a big problem, I must perform a CW "continues wave' drive test for UMTS model tuning project for 40 sites and I must start in two days.
I know how to perform 2G (GSM) drive test but the CW drive test is a new for me.

So, please please could you describe the drive test process for the CW in steps, I will use W-CDMA Area Tester for this drive test.

Please, it's not only important but it's a very urgent.
I'm sure you could help me.

Waiting your reply ASAP.


 
   
 
georgewahib1
 Post subject: Re: CW measurements
Posted: Sun Jun 08, 2008 6:41 am 
 
Lieutenant

Joined: Sun Jun 08, 2008 3:52 am
Posts: 1
web engineer wrote:
Dear Friends,

I'm in a big problem, I must perform a CW "continues wave' drive test for UMTS model tuning project for 40 sites and I must start in two days.
I know how to perform 2G (GSM) drive test but the CW drive test is a new for me.

So, please please could you describe the drive test process for the CW in steps, I will use W-CDMA Area Tester for this drive test.

Please, it's not only important but it's a very urgent.
I'm sure you could help me.

Waiting your reply ASAP.
:roll:


 
   
 
nubbage
 Post subject:
Posted: Tue Jun 10, 2008 7:07 am 
 
General
User avatar

Joined: Fri Feb 17, 2006 12:07 pm
Posts: 268
Location: London UK
It sounds to me like you need to radiate an unmodulated carrier from each BTS, and with a spectrum or transmission analyzer and GPS linked to a laptop, drive out radially recording the CW carrier level. Suitable software then translates the data into a map overlay to produce carrier level contours for each BTS.
I guess this has to be done for each carrier, but the test spec should state this.






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