Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes Wireless System Designer RF Stencils for Visio Shapes for Word Search RF Cafe Sitemap Advertising Facebook RF Cafe Forums Thank you for visiting RF Cafe!

WLAN RF TEST - 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

 Post subject: WLAN RF TEST
Posted: Sat Apr 11, 2009 11:42 am 

Joined: Wed Apr 08, 2009 11:07 am
Posts: 37
Hase anyone found a relatively cheap way to make WLAN RF measurements (802.11 a/b/g). I need to measure EVM, clipping, phase errors, phase noise, etc. There seem to be a lot of $70K solutions out there. Anything worthwhile in the $5 K range.

It would also be nice if it could do other measurements, such as data demod for FSK and DSSS ISM band links.

I do have a TEK MSO4104 and was wondering if I could downconver into it, and interface it to Matlab and do the RF measurements?

Maguffin Microwave Consulting

 Post subject: Re: WLAN RF TEST
Posted: Tue Apr 14, 2009 11:49 am 

Joined: Tue May 20, 2008 8:13 pm
Posts: 8
If you're looking to do meaningful measurements, then really nothing short of a communications analyzer will do the job. Trying to sample with MS4104 will probaly introduce errors because it is impossible to discern how successful your downconversion is (introduction of intermods and other nonlinearities).

Have you looked into renting a piece of TE from a place like Test Equipment Connection, Alliance Test Equipment, etc. (there are a lot of companies listed on this website)? For a couple grand, you can get one for a month.

 Post subject: Re: WLAN RF TEST
Posted: Tue Apr 14, 2009 1:03 pm 

Joined: Wed Apr 08, 2009 11:07 am
Posts: 37
I am looking at used test equipment. My concern is that things change SOOOO fast nowadays, and communications gear software becomes obsolete and non-supported in a wink of an eye. I was wondering if the best way was to 1)get a dedicated piece of gear, like a VSA, and make sure it is current enough to still be supported, and add the measurement personalities as needed, or 2)i/Q downconvert the signal myself, and import it into Matlab or NILabview, and do the processing there.

I am a consultant, and therefore need low cost but also the flexibility to work with anything a customer throws at me. For instance, if I had a dedicated VSA, and I got a number of LTE test jobs, I would have some trouble upgrading unless the VSA was one of the latest models.

Maguffin Microwave Consulting


Posted  11/12/2012

RF Cafe Software

   Wireless System Designer - RF Cafe
Wireless System Designer

RF & EE Symbols Word
RF Stencils for Visio
Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2022
Kirt Blattenberger,

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

Try Using SEARCH
to Find What You Need. 
There are 1,000s of Pages Indexed on RF Cafe !