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RF power measuring - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: RF power measuring
Posted: Mon Aug 22, 2005 3:47 pm 
Hi,

Are there any RF power measuring instruments that can measure upto 200kw power in pulse mode?

thanx.


 
  
 
 Post subject:
Posted: Fri Sep 02, 2005 8:37 pm 
 
Colonel
 

Joined: Fri Sep 02, 2005 7:25 pm
Posts: 34
Location: Hampshire UK
OK - the easy way to measure high power is to let it rip into the dummy load via a high loss coupler, or maybe off the "isolated" port of a ring combiner. 200kW sounds like a radar pulse. Anyway, step 1 is to get a suitable sample of a sane size.

Next is the frequency. If the scope is up to it, a direct measure will do. Otherwise, use a diode detector, and then a lower bandwidth scope can deliver the pulse envelope.

Unless..maybe I misunderstand. Are you thinking of some sort of stand-alone instrument that connects via a thru-sample head, and delivers the answer on a display?




Posted  11/12/2012
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