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.
| shireesha | 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?
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| Kirt Blattenberger | Post subject: Re: SOLT and TRL Posted: Mon Mar 29, 2010 9:40 pm |
| 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
http://books.google.com/books?id=jhzfMLh9gFoC&pg=PA238&lpg=PA238&dq=trl+solt+calibration+preferred+frequency&source=bl&ots=VU_TafJRxF&sig=nA0YLodGT7Hbr6dIOhjdzGOP1v0&hl=en&ei=ZlWxS9WnDIL78AaQye3NAQ&sa=X&oi=book_result&ct=result&resnum=8&ved=0CCEQ6AEwBzgK#v=onepage&q=trl%20solt%20calibration%20preferred%20frequency&f=false _________________ - Kirt Blattenberger RF Cafe Progenitor & Webmaster
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| ashishbondia | 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
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Posted 11/12/2012
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