Visit Thanks for visiting Thanks for visiting the RF Cafe Archives Thank you for visiting RF Cafe Thank you for visiting the RF Cafe Archives!

SOLT and TRL - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

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

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

 Post subject: SOLT and TRL
Posted: Mon Mar 15, 2010 1:00 am 

Joined: Wed Jun 04, 2008 3:23 am
Posts: 11
Would it be possible to elucidate why SOLT is the preffered mode of calibration at low frequencies and TRL at higher frequencies? What is generally the more accurate mode of calibration?

Kirt Blattenberger
 Post subject: Re: SOLT and TRL
Unread postPosted: Mon Mar 29, 2010 9:40 pm 
Site Admin

Joined: Sun Aug 03, 2003 2:02 pm
Posts: 308
Location: Erie, PA
Greetings shireesha:

I am not an expert on the SOLT vs. TRL calibrations, but I have read that the difficulty in making a good open circuit cal standard at really high frequencies is the reason. Here is an excerpt from "Microwave Measurements," by Richard J. Collier, A. Douglas Skinner

- Kirt Blattenberger 
RF Cafe Progenitor & Webmaster

 Post subject: Re: SOLT and TRL
Posted: Wed Mar 31, 2010 1:32 am 

Joined: Wed Aug 16, 2006 8:20 am
Posts: 23
Location: India
If you want to use TRL at low frequencies than the size of the calibration standard (line section) will be very large....

Ashish Bondia,
Design Engineer- RF

Posted  11/12/2012