Thank you for visiting RF Cafe! 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 RF Cafe Homepage Thank you for visiting RF Cafe!

Using HP 4193A Vector Meter - 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


xile
 Post subject: Using HP 4193A vector meter
Posted: Fri Feb 22, 2008 4:29 pm 
 
Lieutenant

Joined: Fri Feb 22, 2008 4:01 pm
Posts: 2
Hi all,

New here. What does it mean if phase angle > 90 degree when calibrating the probe on the vector meter by connecting the probe to ground? The R component becomes negative! And at lowest possible frequency 400 kHz, the phase angle is not stable, jumping from -88 to + 100. Why?

Thanks in advance.

_________________
Cheers,
Xile


 
   
 
skywave
 Post subject:
Posted: Wed Sep 10, 2008 6:12 pm 
 
Lieutenant

Joined: Wed Sep 10, 2008 5:49 pm
Posts: 4
Location: Central England
The rapid variation in phase could be because your "ground" is not really ground. There could be all sorts of RF pick-up, including the supply freq. and harmonics of it and all manner of other crap noise.

_________________
Quantum Mechanics - the dreams that Stuff is made of.





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
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

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:
 AirplanesAndRockets.com

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

height-line