[Elecraft] open wire feeders
K8TB
k8tb at bosscher.org
Sat Dec 31 15:37:40 EST 2011
I have a balanced fed balanced length dipole. The dipole sits atop
40' of rope guyed fiberglass pole. 55 feet on each side. About 45 feet
of 450 ohm balanced line comes into the far end of the back side of the
house into one of my 7 , um, junk/storage rooms! There I have a 4:1
balun, which then hits a LDG RT-11 antenna tuner. The RT-11 is a remote
controlled tuner. A little control sits in the shack. I tap the tune
button on the K3, tap the tune button on the little LDG box and the
tuner works.
I don't know what the experts or Enzec says about this antenna, but
I'll tell you that it works, and very well. So much so that I have a
second copy of it in a plastic box in the garage that is used on field
day. Anyone who uses that antenna at field day is very impressed. I have
about 60 feet of rg-8x from the shack to the remote antenna tuner. Zero
RF in the shack, ever. No chokes on any feed line. And it has worked K5C
and VP6DX and others on all bands from 80 to 10. I have no idea how the
success ratio is divided between the antenna and K3!
Now, maybe we can build a simple interface to the KAT500 tuner to
convert its need to communicate to the K3 to a balanced rs-485
configuration. That would allow us to remote the tuner hundreds of feet.
I would then use that at my remote base site.
But that antenna does work.
Tom K8TB
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