JC-4s manual version 9.1 page 13
Here down some antenna examples. There is no “best” solution. It all depends of your interest,
length of wires and space.
K : Intend of use:
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This device is designed to match 2 end-fed wires in the HF spectrum to a 50 ohm coax cable.
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Use of the JC-4s beyond the specified frequency or power range can destroy it and cause safety risks.
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This product must be considered as a sub assembly, intended to be a part of an amateur antenna
installation.
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This product is exclusively intended for outdoor use, in a fire safe and explosion safe environment.