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EFHW

End Fed Half Wave Antenna

2 x FT-240-43 toroids and 18 gauge stranded wire
friction tape
stack the toroids
wrap toroids together
wrapped toroids
measure first three wraps with string
cut measured length for first 3 wraps
wrap first three wraps with primary and secondary wires together
continue with secondary until first tap
strip end of 6th wrap for first tap
cutting one pass through toroid to pre-measured mark
strip and twist together end of 6th wrap and beginning of 7th
do the same with each successive wrap
36 total wraps, wrap #’s 6-36 tapped
solder on connector and all twisted wire connections

The EFHW page is still under construction and will be updated soon with much more info on the EFHW antenna and how to build an UNUN impedance transformer. Sign up on the QSO page and you will receive updates when the website has new additions or new info about events.

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