[UK-CONTEST] New HF CW Field Day rules

David g3yyd at btinternet.com
Wed Mar 21 11:19:07 PDT 2012


22m support plus 120m of wire not bad for a V beam with 3 wavelengths per
leg on 20m - 6 wavelengths per leg on 10m probably beam width too narrow so
fold wire back on itself to shorten legs. Pre-arrange anchor points so can
walk wires around to change direction. Straighten out V beam and hey presto
got a dipole/doublet for the low bands. Might want to add loading coils for
top band to improve efficiency. Feed with good open wire feeder preferably
homebrew into matching unit. Use a SEK choke balun?

For the ambitious build those filters to allow two bands to be worked at the
same time on the same antenna.

73 David



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