common mode choke
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Antennas : 160M- Isolation chokes for 160m verticals
- An article on how much impedance you really need and how small can be a chooke for top band vertical antennas by N6LF
[ Hits: 628 | Votes: 0 | Rating: 0 ]
- Baluns and common mode chokes
- Voltage baluns versus Current baluns. When to use them, differences, and typical usage in feeding antennas, or in resolving radio frequency interferences.
[ Hits: 401 | Votes: 1 | Rating: 10 ]
- How to Blow Up Your Balun
- In this article, author examine stresses placed on common-mode chokes (aka baluns) as hams use/abuse them, examine the efficiency of simple dipole multi- band antennas and their feed systems. Stressing a Balun.
[ Hits: 383 | Votes: 0 | Rating: 0 ]
- Coaxial Transmitting Chokes
- Understanding Common Mode and Differential Mode Currents on Transmission Lines by K9YC
[ Hits: 1099 | Votes: 0 | Rating: 0 ]
- Common mode chokes
- Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS
[ Hits: 5292 | Votes: 12 | Rating: 5.17 ]
- Noise Reduction on 40m
- DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.
[ Hits: 1383 | Votes: 0 | Rating: 0 ]
- About Common Mode Choke
- A general article on CMC, common mode choke include a description and tipical usage.
[ Hits: 886 | Votes: 0 | Rating: 0 ]
- Common-mode chokes
- Chart that present results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ
[ Hits: 605 | Votes: 2 | Rating: 4 ]
- RF Chokes
- A chart presenting the results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ
[ Hits: 904 | Votes: 2 | Rating: 7.5 ]
- How to evaluate Choke performance
- If you want to build your own common mode choke, this article explains how to measure the efficiecy of your choke before using it. In the examples has been used Amidon FT240-31 toroids.
[ Hits: 209 | Votes: 1 | Rating: 8 ]
- High Performance common-mode chokes
- May 2015 Radcom Article on common-mode chokes that can be used for control cables, phone lines, but mostly on typical HF antenna systems. This article explain what common mode chokes does, why you meay need one, properties common mode chokes should have, how to build and measure performances.
[ Hits: 681 | Votes: 1 | Rating: 10 ]
- Do not wind chokes on red toroids!
- I happened to stumble across some antenna projects showing common mode chokes 1:1 baluns made of some turns of coax wound on T200-2 iron powder toroids.
[ Hits: 187 | Votes: 0 | Rating: 0 ]
- MyAntennas.com
- MyAntennas.com offers standard and custom made multiband antennas, Baluns, Common Mode chokes and accessories. All products are designed and made by Danny Horvat, E73M an antenna design engineer formerly employed by Cushcraft Corporation.
[ Hits: 780 | Votes: 1 | Rating: 1 ]
- CET Technology
- Manufactures Flyback, Switching, Audio, Toroidal, Current Sense & Custom Trasformer, Drumcore & PFC Inductor, Common Mode Chokes.
[ Hits: 136 | Votes: 0 | Rating: 0 ]
- Choking on RF
- The intrepid newcomer encounters common mode problems in a mobile environment. Implementing some common mode chokes will be possible to reduce interferences
[ Hits: 1128 | Votes: 1 | Rating: 1 ]
- Ferrite and common-mode choke
- Finding the the best ferrite material for a common-mode choke. How to create efficient ferrite cores and how to measure them
[ Hits: 184 | Votes: 1 | Rating: 10 ]
- How Common Mode Chokes Work
- Examine the function and operation of a common mode choke and the way it reduces unwanted interference. Common Mode Choke vs. Single Choke
[ Hits: 736 | Votes: 2 | Rating: 10 ]
- Cost-effective ferrite chokes and baluns
- In this article the author describes some new designs of ferrite loaded chokes for suppressing unwanted common mode currents at HF applied to feed lines like choke baluns, but also in the shack, applied to various coaxial, mains and data cables
[ Hits: 855 | Votes: 5 | Rating: 6 ]
- Common-mode chokes Measurements
- Common-mode chokes are useful solutions for RFI reduction. Winding a few turns of coaxial cable on the FT 240-31 toroid can reduced the noise below the received noise floor. In this article author measure different chokes
[ Hits: 155 | Votes: 1 | Rating: 8 ]
- miniVNA PRO Modifications
- The mini Radio Solutions miniVNA PRO is the only affordable vector network analyser (VNA) I know of that offers remote wireless operation.
This is very interesting because it allows to measure the input impedance of HF antennas installed at height without having to deal with coax cable lengths, baluns nor common mode suppression chokes.
However, to render the miniVNA PRO truly field proof, it requires a number of significant modifications.
[ Hits: 136 | Votes: 5 | Rating: 7.8 ]
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