KH6JRM;s Amateur Radio Blog

'Just about time to wrap up the news cycle for today
in the KKBG-FM/KHLO-AM newsroom. Then,
it's home to the shack for some casual operting before
calling it a day. I'm still working on the under the
house NVIS loop.  The wire has sagged a bit since
I attached it to the undercarriage of the qth.  With
142' of 18-gauge wire, the antenna can work any-
thing from 40 to 10 meters.  Admitedly, the arrange-
ment works best on 40 meters (mostly local contacts
out to about 300 miles).  But, with the 450-ohm feed
line, I can get some service on the higher bands.  The
backyard vertical is still a work in progress.  It works
alright, but a few more counterpoise wires will help
deliver a better signal.  Like the NVIS loop, the 33'
foot vertical is fed with homebrew twin lead and seems
to keep the Drake MN-4 ATU and the old Swan 100-
MX happy.  Currently, I'm using a single tuned counter-
poise wire.  I've garnered many contacts with this im-
provised skyhook...Of course, better performance can
be gained once I install a better ground system.  That
seems to be the limiting factor in verticals erected over
limited real estate.  So, once I get the household chores
done, the lawn mowed, and the trash dumped, I can
focus on making the antenna more efficient.  Even with
10 to 20 watts of power, the antenna does a fairly good
job.  I usually don't go much higher, since I'm running off
a solar-powered deep-cycle marine battery.  Nothing
fancy, but it works.  Enough pontificating for now. 'Til
next time.  Aloha es 73 de KH6JRM.


Popular posts from this blog

G5RV Multi Band HF Dipole Antenna. Post #1555.

Amateur Radio Bicycle Mobile Setup. Post #1554.

An 80-Meter Vertical Helix