I cut my top loaded "T" (85' at top, 10' high feed, elevated 8x 125'
radials) for 1825. Then 3 equal value series capacitors are shorted by
PCB relays (10a, 5Kv coil insulation) to switch in C, C/2, and C/3
(C=4000pf for this antenna). That yields 4 by 40KHz spaced segments
with > 50KHz 2:1
Jim, I mentioned relay cut-in of L's and/or C's at the base of an antenna
to help cover all of 160M. On my tuner web page I mentioned does not show
this recent update I have made at my shack, but I have a relay that shunts
out turns of my 160M coil to help me QSY to top end of 160M phone in
My opinions:
All-band antenna tuners make a set of compromises to produce a tuner that
fits in one box.
They may not be able to handle legal limit on RTTY. Or legal limits CW/SSB
on other bands, especially the "extreme bands" of 10M and 160M.
They often have 10-turn (or more-turn) roller
> I have e-mailed Palstar but, to date, they have not responded. I would
> love it if someone would come up with a high power, fully weatherized,
> remote tuner.
I was in a dilemma back in Illinois, I had a Heights 100' aluminium
fold over tower but insufficient land to put down sufficient
As a point of reference, in the product manual for the Palstar auto
tuner, they do mention developing a remote version of their auto tuner.
PALSTAR will off er a fully remote version of the base version in the near
future. However, in certain cases where there is DC power available at
a
I have been successfully using the MFJ-998RT successfully on a 2 el 80M
phased wire array. The 2 el wire beam has great performance but is very
narrow banded (about 100khz) so I decided to try this tuner mounted on the
tower at the feed point of the connection to the 2 phasing cables. It works
I have started looking at tuners myself and was mainly interested in
auto tuners. There are some that claim to handle the legal limit except
for RTTY. I have a Dentron MT3000A manual tuner and it doesn't seem to
care. OTOH most of my antennas usually don't need a tuner as I have had
solid
On Sun,2/14/2016 6:30 PM, Jim Murray via Topband wrote:
would appreciate any opinions
My favorite has long been the Ten Tec 229/238 series of tuners. All
essentially the same, except that the latest models use mechanical
vernier indication of inductor position rather than a dial string (a
Jim,
You are undoubtedly going to get a variety of recommendations on a tuner.
I guess the first thing to decide is if you really want an automatic
tuner. Secondly it if you
are going to use balanced line or not. And last but not least power
level you will be using. I have a Palstar AT5K
Hello all,Would you have any recommendations for antenna tuners? Have been
looking at the automatics, Palstar, Mfj, LDG At-1000Proii etc.. Have been
using an old Dentron which doesn't have very close markings on the dials and
getting tired of turning and adjusting. Another option would be
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