for a quick 160 antenna look at the Gap Voyager. I got mine used for $150
and am pretty happy.
I also have a AD sloper that will go on 160. the Gap has a capacitor you
can order to "center " you freq, mine does from about 1.845 to 1.920 on 2:1
and
the sloper does about 1.890 to 1.960 so between the two the gap is much
better on rx and tx, better ears.. not the best in the world and really
"bendy"
on the way up and needs 2 sets of rope guys, (I recommend 3 sets) in 6 months
My best so far is Jamaca from Northern CA , It works good for me for casual
contesting , rag chewing, and is great on 80 and 40, and although it tunes
almost flat across 20 m, it is dead on rx there.. Hope this helps, a good
choice for a smaller lot..
tom N6AJR
In a message dated 1/18/2006 7:27:35 P.M. Pacific Standard Time,
K9RB@bellsouth.net writes:
I certainly won't disagree with you and I am also fortunate enough to not
require an antenna tuner on any band but 160 (didn't get the built in
antenna tuner in the Orion as I don't need it). Not all hams though are
lucky enough to have antennas or the space for antennas that will present a
descent match across all of the amateur bands, and an antenna tuner is the
only option.
My question to Rog is:
What type of antenna do you use on 160 mtrs that will allow descent coverage
of the band without a tuner? I would think that most 160 mtr antennas that
can be erected by the average ham would require a tuner.
Personally, I have two phased verticals that are 66 ft tall and linear
loaded. Each have 120 (+ or - a few) radials that are 135 ft in length.
My 2 to 1 bandwidth is 40kc with a resonant freq of 1840. A good ant
tuner is the only answer I know of short of putting remote tuned matching
networks at the base of each tower. Granted, there is some loss in the coax
as the antenna is used above or below 1840, but it is not something I can
not live with.
Dick K8ZTT
Hi Dick, I have two transmitting antennas for 160 meters at present. One is
a 5/16 wavelength inverted L that is 68 ft. tall and about 98 ft.
horizontal fed with a remotely tuned vacuum variable at the base of the
insulated vertical section. This antenna also has a vacuum relay at the top
of the vertical section to isolate the horizontal wire and while also
simultaneously shorting out the series vacuum variable at the base by means
of another vacuum relay. This allows operation on 80 meters as a quarter
wavelength vertical. The relay at the top has the coil wires fed through the
center of the 2" mast tubing. I also have a rotary inductor inline at the
base to adjust the resonant point on 80 meters while it is self resonant at
3,870KHz., about as far up the band as I care to operate. To QSY down to
3,505KHz. requires only about 3 1/2 turns of the 3" diameter motorized ribon
inductor. On 160 meters I can cover the entire band with the vacuum variable
remotely tuned with a 3 RPM DC motor and gear drive. For reasons really
unbeknownst to me, with the vacuum variable relay energized to short it out
the series capacitor and just about 1/2 turn of the ribbon coil in series
with the inverted L, I get a flat match and excellent performance on 30
Meters also. This was a suprise discoverery and unexplained bonus! This
system was not perfected in a weekend, but took lots of trial and error with
both relay and mechanical problems to overcome, but it has been operational
to my satisfaction for it's fourth season now. I have approximately 3500 ft.
of #6 Ga. solid copper wire stretching to
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