It's on-topic, as I am using a 238B...
New antenna, 140' sloping dipole...apex about 50 to 55 feet, ends about 30
feet, so not quite an inverted vee,
Feedline: 600 ohm (or thereabouts) 14 gauge stranded, insulated wire using
73CNC spreaders, Guesstimated length: 110 feet. Feedline and antenna are
continuous pieces.
Tuner: 238B, followed by 10 feet of LMR600 to a 1:1 current balun from
Balun Designs (to get out of the shack).
On 160 meters, I wound up in Hi-Z "5" position to get a 1.8:1 match. Am I
looking at Hi-Z because the antenna length is about 1/4 wave? If so, would it
help so add 20 feet to each end, even if it went at nearly a right angle to the
antenna? Or is this really unimportant/not an issue as long as I get a match?
Also, what recommendations do other owners have for additional capacitance if
necessary? I have not replaced the internal capacitors with the Russian
doorknobs but might at some point.
Interested in your thoughts. If the Pegasus S-Meter is at all accurate, I was
hearing Russians a full S-unit better on 20 meters last night with this antenna
than with my AV640 vertical. Japan is off the end, so the vertical is better in
that direction.
73,
Art
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|