[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
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