[Elecraft] "random wire" and the KX3 ATU

[Scott Graham]

Thanks everyone for setting me straight... In this case, 'random'
truly means random... In the 10 years I have been away from Ham Radio
I have become, well, less than fluent with antennas. hihi.

So, using the K3/100 with the built in AT, how would you construct an
antenna using a short piece of coax from the radio to a "coax/ladder
line" interface (or some PL-259 adapter capable of 100W+) , then 450
ohm ladder line some 40-50' to where you would attach the 'antenna'
and 'radial' leads? Or is there a better design?

I am looking for a reliable 40m and up antenna that I can use in an
attic or hidden on top of a house. I think 75-80' total
circumference/length would be pushing it. I have to fold the current
40m part of my dipole around the attic with no bends greater than 90
deg. I am currently using a homebrew 'fan' dipole. 47' RG8U to a 1:1
balun. Then the 40m ( 63' ? / 2 ) of 10ga wire off each lug. Also have
20m leads coming off the balun as well. RX is ok on this dual band
ant, but nothing to hop around about. Very noisy as well. The K3 tuner
tunes it ok on most frequencies. Need something better.

Anyone have ideas/suggestions? I was looking at the random wire with
about 75' on the red and 40' or so on the black. Wondered if I would
get better performance out of the random wire? Again, any better
thoughts or ideas?

Thanks in advance and thanks to those who responded previously.
Scott - n0nuf