Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: RF Choke  (Read 5419 times)
KC5NYO
Member

Posts: 26




Ignore
« on: January 08, 2003, 09:07:21 PM »

Just an FYI on how I fixed my TVI problem here........ I was getting into the TV, which is on cable, on 20-6 meters if running over 75-80 watts. I have a 3-element beam that's fairly low at 28' over the roofline on a small quadpod tower.

Tonight I took approx. 12' of coax, installed the connectors, wound it about 8 turns of 6"-8" diameter, and hooked it up inside the shack here to the antenna lead out. Problem solved, can run full power now on all bands with no interference to the TV. My wife is sooooo happy now!  : )
Logged
WB2WIK
Member

Posts: 20567




Ignore
« Reply #1 on: January 09, 2003, 11:28:35 AM »

Congratulations!

That was an easy one, and a good thing to try.

A dozen ferrite cores slipped over the coax, in lieu of the "RF Choke balun" you made out of coax, probably also would have worked and sometimes is easier, if you happen to have the ferrites laying around.

The advantage of the ferrite cores, as opposed to the coil of coax, is you can get ones that just clamp right over the existing coax, so no real "work" needs to be done -- and, you can slide them up and down the coax line, to see what location is most effective at eliminating the RFI.

Good job, though!
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!