Interesting discussion:
But most of us probably tune our antennas for best SWR at the desired
frequency.
I have a dual-band 80-40m inverted-V with apex at 40-foot and 80m
wire tail at 20-foot. The separate 40m wire is spaced 6-inches from
the 80m wire with wooden dowels. I found by trial-n-error that one
must tune the lowest frequency wires, first. I did that using an
antenna analyzer. Then the 40m wires. Turns out (probably due to
coupling) that the 40m antenna is narrow bw (50-KHz at best) whereas
I get good SWR from 3650-4000 KHz.
The purist will say that's not resonant but the transmitter is
happy. I can run bypass on 3800-4000 KHz with my KXPA100/KXAT100
but must tune using the atu on 40m.
For working around Alaska (out to 800-miles) this "cloud burner"
works well with 100w. I only use SSB on these bands. 3920 is the
defacto calling/emcomm channel in AK.
When we have an earthquake, 3920 lights up (as well as 14,292) for
reporting from our remote areas. I live two miles from salt-water so
tsunami watch is common after a "big one".
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
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