I would recommend either a coax choke or a W0IYH bead choke for your X7.
Either of these solutions can handle the rigors of RTTY contesting without
failure and will deliver superior shield choking results. That way you do not
have to worry about the stock choke failing.
The ARRL Antenna book has designs for coax chokes that work great.
I use W0IYH bead chokes on both ends of every antenna feedline at my station.
Comtek Systems has more info on the W0IYH choke. http://www.comteksystems.com
Bill Turner wrote:
> Has anyone had any high power problems with the Cushcraft balun
> supplied with the X7 triband yagi? They rate it at full legal power,
> but it seems a bit small for legal limit RTTY contesting. I'm almost
> ready to put the antenna up but I'm wondering if I should just replace
> it now while the antenna is still on the ground.
> Some years ago I blew a Hy-Gain balun on a TH5-MarkII, but after
> installing Hy-Gain's higher power version, all was well. I'm thinking
> I should do the same here.
> Any suggestions on which balun would be a good choice to replace the
> 73, Bill W6WRT
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