Stuart Rohre wrote:
The Diamond bottom tube may, (and likely) contains a broad band ferrite
cable choke. Or there may be a combination trap/ loading coil such as used
on some tri band beams for multibands.
No way that a choke would produce the SWR curve shown in their spec
sheet. Whatever else is in there, there's also a resistor.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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