Topband: Commond mode choke for Beverage

Jim Brown jim at audiosystemsgroup.com
Mon Oct 12 11:39:00 EDT 2015


On Mon,10/12/2015 6:51 AM, Filipe Lopes wrote:
> With these ferrites I ask the same question, should I put the choke close
> to the 9:1 Balun or near the switching box and how many turns? some bevs
> have the feed point at +- 60m away from the switching box.

Use the #31 material. Wind at least 20 turns of RG58 around it. Place it 
as close to the 9:1 transformer.

73, Jim K9YC


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