Custom Search
More than 12,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeView the YouTube RF Cafe Intro VideoKirt Blattenberger ... single-handedly redefining what an engineering website should be.

Carpe Diem!
(Seize the Day!)

5th MOB:
My USAF radar shop

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding website

•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™


RF (VHF) chokes - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Please visit the new and improved RF Cafe Forums that were created in September of 2015. Unlike with the old forums where users registered individually, the new forums use a common User Name and Password so anyone can post without needing to create an account. Please find the current User Name and Password on the RF Cafe homepage. Thanks for your participation.

Below are all of the old forum threads, including all the 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: RF (VHF) chokes Posted: Thu Mar 15, 2007 6:00 am


Joined: Wed Feb 07, 2007 3:18 am
Posts: 1

Design a 50W tx tuner filter requires lots of RF chokes, but the chokes i used (20uH Axis chokes) have too low Q factor. so,is there any manufactor have better product, thanks!


Post subject: chokesPosted: Wed Mar 21, 2007 6:23 pm


Joined: Tue Mar 06, 2007 2:40 pm
Posts: 2
The distributed capacitance (SRF) and reduced Q at VHF for molded chokes.

You may need to switch to ferrite beads and decoupling resistors to get the rejection you need.

Posted  11/12/2012