[TowerTalk] Ferrites 31 vs. 77 material

Jim Brown jim at audiosystemsgroup.com
Wed Nov 6 22:52:30 EST 2019


On 11/6/2019 6:28 PM, Bob Shohet, KQ2M wrote:
> I prefer to use large ferrite beads that fit on the coax – roughly 1/2” ID -  1” OD  x 1 1/4” height and then tape the beads in place in physical proximity  to each other next to the feedpoint.

You may prefer that, but that sort of bead only works at VHF. My 
detailed recommendations are here. http://k9yc.com/2018Cookbook.pdf

Yes, #31 material is the weapon of choice for 160M - 6M.

73, Jim K9YC


More information about the TowerTalk mailing list