Topband: 160 GP Choke

[Jim Brown]

On Fri,10/3/2014 12:58 AM, Mike Waters wrote:
> That is the design that I was originally going to use, except that I would
> change it slightly because I use all 75 ohm coax. Anyway, what is the
> advantage over one made with coax? Better bandwidth, I suppose?

Yes, the advantages of THHN are better bandwidth, and a closer Zo match 
to a high dipole. Jerry Sevick wrote about Zo of parallel wire line 
chokes, and had established the Zo values I noted. Many years later, I 
wound some chokes and confirmed these values within the range of 
experimental error.

73, Jim K9YC