I ran a transmit test today on my recently built (serial 7059) K2/100, with SSB
adaptor, KAT 100 antenna tuner and elecraft balun. For the station antenna, I
have an 80 meter dipole with each leg currently cut to 66 feet. The center of
the dipole is not quite 40 feet high. The two ends are
Paul,
Did you set the menu ATU parameter to AUTO and then do a TUNE before
trying to transmit?
If you did, you should have heard relays clack while the KAT100 found a
match, then the SWR indicators should have settled to less than 1.5.
If you followed that procedure, then yes, you can
Paul, you can use an 80 meter dipole on 40 as you describe. Many have done
it with success. However, you may have to fool with it to get it to work,
since the antenna is being fed at a very high impedance point.
I assume the balun you're talking about is 4:1. To start, I'd suggest
grounding the
Tony and all,
Those counterpoise wires should not just be dangled on the ground.
They will carry RF current, and the RF voltage at the ends can be quite
high. Treat them just like an antenna radiating element - keep them
clear of possible contact for humans and pets, and use insulators on
Paul,
In addition to the points in my last post, a check of the feedpoint
impedance (with an antenna analyzer) at the end of the parallel line
would be informative. If you have an 80 meter radiator and a feedline
that is close to a half wavelength on 40 meters (34 feet or some
multiple of
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