On 3/4/2025 8:54 AM, Joe Subich, W4TV wrote:
In either case, I would recommend K9YC's "Choke Cookbook" for
common mode choke/line isolator designs:
<>
Table 3, on page 8 gives several designs for multi-band, two
toriod chokes.? The "160-20" design would be ideal for a
G5RV/ZS6BKW (used on 80-20 or 80-17) and the "30-10" would be
a great add-on choke for a vertical like the R-6000.
My designs are effective ONLY for insertion in MATCHED transmission lines in the range of 50-100 ohms. Any non-tunable device I know of that does anything useful is likely to fry in a poorly matched line.
73, Jim K9YC
