Jim not a bad count.
Here I am at a count of 86. Been working at it for 38 years here in the city on
a tiny lot.
Working 100 for DXCC on 160m better happen before I die. Age here is 70.
Its what it is.
Jim Borowski K9TF
jim.gmfo...@gmail.com
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Searchable Archives:
Ok guys how well will that loop Jim is talking about over a radial field if
this receiving antenna is about 5 -7 feet off the ground? How far do you
need to stay away from your radial field?
>From what I have been reading loop antennas and shielded loops couple into
your radial field and pick up
Any one hear me calling CQ or called me and I did not come back to you?
I was running QRP with a KX3, and using my transmit antenna for receive. I
worked VP5 and KV4 for DX and may other stations. I operated the full 14
hours. with 3 breaks in the 24 hour period. The band here has a 10 to 12db
In about 7 years that Dacron stuff starts to dry out and comes apart
slowly, Rots it in water like rain gutters.
I have seen some guys use this Space Walk gray tethering cord for fling big
kites 120 square feet of sail and bigger. Not sure of the composition and
how UV resistant it is. Has a
Flag companies use a rope with a Kevlar core and a nylon out side. Seams to
be the best.
Flag companies use a steel core rope as well with a nylon rope jacket but
it rusts breaks apart and the nylon rope breaks apart with it.
Nylon lasts a Long time but it stretches like a rubber band.
Are there any hospitality suites or meeting place or watering hole that
TopBand meets at Dayton?
I am going to Dayton this year.
--
Jim K9TF
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Topband Reflector Archives - http://www.contesting.com/_topband
Not sure what your replacing if it is a round insulator piece for 2 pipes
or stand off type insulator for matching section or what?
Try fiberglass rod material or Teflon blocks depends on application.
Teflon blocks were used on heavy industrial equipment when shipped so the
equipment can be
You do not flod the inside DAH! Coat the darn stuff on the ouside DAH!
--
Jim K9TF
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Topband Reflector Archives - http://www.contesting.com/_topband
When Vaseline dries out thats telling you that air is getting in. If air
is getting in, moisture is getting in and contaminating to cable and
connector.
Same goes with what ever dielectric you use as well.
--
Jim K9TF
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Topband Reflector Archives -
Vaseline will work keeps moisture out, non conductive. You can cover a lot
of surface. Over years it drys out gets crusty. Vaseline is made of lanolin
mostly, I believe.
Neverseizes or anitseize compound found in any hardware store, Works very
well drys out some but keeps working for years.
What is making you believe you have a faulty 75 ohm coax?
I would hang a 50 ohm dummy load on it at the end of the cable that goes to
the antenna and load it to the same power level you have the problem with.
Then move the dummy load to the next joint then the next joint and so on
and do the
K9W was a well running machine. Wish I could say the same about this
inverted L.
It worked great on 160 and 40M at the beginning of the expedition and
worked em on these bands.
Tried on 80M and higher frequencies just no luck hearing them then along
try to work em.
Propagation maybe? My antenna,
Our Cities rat issue is easting the underground TWC in chases in the
street. Stupid critters even eat through concrete.
IMT Ridged rusts through in Wisconsin soil around 15 years. Sked 40 or 80
Pipe with PVC pushed inside should last a life time. Back in the day at
the paper mill we used Sked 40
City has a rat infestation. Digging all kinds of holes under peoples
wooden decks. They did some construction work in the street and drove them
out. They never addresses the problem before it happened.
They at through Time Warners under ground main feed for 400 homes, node
line, they have to
What is the real or best guess what value this inductor has? This is what I
am using.
Edge wound coil is 1/2 inch wide, 1/32 inch thick stock, coil is 2 1/2
inches long,15 turns, 4.5” ID, 5.5” OD
transmit tap is at 9 turns, 6 turns remain going to antenna. Inductance
calculations were found here
That tuner is capable of all those combinations?
http://www.freepatentsonline.com/4763087.pdf
That is just a work of art. You can switch this to any combination or add
caps or inductance.
Looks to me the fixed capacitance is when your in a High voltage situation
gives you the isolation
you need
arcing problems.
I just do not know why this is working for me. Can some one please explain
this to me I am confused? All this reading
requires a younger mind.
Jim K9TF
On Sat, Oct 5, 2013 at 1:54 PM, Jim GM jim.gmfo...@gmail.com wrote:
My antenna is a 99 foot inverted L for 160M with 95 short
You could use Teflon tap, it is used on plumbing pipe threads to prevent
leaks. Some one once told me that 1mill thicknes was good for 1K volts.
--
Jim K9TF
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Topband Reflector
, Jim GM jim.gmfo...@gmail.com wrote:
You could use Teflon tap, it is used on plumbing pipe threads to prevent
leaks. Some one once told me that 1mill thicknes was good for 1K volts.
--
Jim K9TF
--
Jim K9TF
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Topband Reflector
Too far out to have any affect on 160M. Some day some one will come around
and prove that it does.
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Jim K9TF
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Topband Reflector
Thankyou Charlie.
I got those Q numbers from
http://www.m0ukd.com/Calculators/air_core_inductor_calculator/
Maybe a decimal point was left out.
Thanks Tom
--
Jim K9TF
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Topband Reflector
NOT GO THAT ROUTE.
My antenna system morfed into just using my gamma big coil on 160M.
On Sun, Sep 15, 2013 at 9:32 AM, Jim GM jim.gmfo...@gmail.com wrote:
Has any one used the MFJ-907 and do what I am trying to do on 160M as a
hairpin match?
From what I have been reading, Q needs
I have an inverted L and using a hairpin coil to match in on 160M.
One coil is 6 inches OD the other is 2 inches OD. I have been thinking
about making another hairpin with wire wrapped around a toroid donut,
I have noticed with the 6 inch coil I have a higher noise level on 160M and
hear BCI
So the general concessions is that 7:5 turns was better. Do is 15:7 turns
or 21:10 turns better? Whats best for 160M ?
--
Jim K9TF
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Topband Reflector
Just in from Spaceweather.com
*GEOMAGNETIC STORM:* A solar wind stream hit Earth's magnetic field on
August 5th, sparking a G1-class geomagnetic storm and auroras over several
northern-tier US states. (Subscribers to our space weather alert
systemhttp://spaceweathertext.com/ were
notified that
I saked my magic 8 Ball and says Cannot Predict Now
--
Jim K9TF
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Topband Reflector
Hi Jim
How well did you do on FieldDay? How well did the 2 element vertical array
perform?
--
Jim K9TF
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Topband Reflector
Jim Sounds like you have a great 40M antenna for filed Day. QRP sounds
like fun. All you need now is brats and beer and something to keep you warm
at night.
Right. There's some discussion of this in the ON4UN book, where I found
the Christman matching. As published there, it's
Very fine Jim.
What kind of gain readings are you getting now?
Christman phasing is at 71 degrees? I was thinking 90 degree phasing.
Whats the reasoning for this?
--
Jim K9TF
All good topband ops know how to put up a beverage at night.
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Topband Reflector
I have seen some thing like those military surplus mast sections. I
believe the ones I saw were made by Shakespear. I think this is the same
company that made those good trout fishing rods and reels like the one I
have.
Sounds like your gearing up for Field Day. If so where are you going to
So Jim, what are your final conclusions?
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Jim K9TF
All good topband ops know how to put up a beverage at night.
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Topband Reflector
I think your too close to tell, or just coupling into every thing around
there. Knowing you I am sure you have done every thing right. Try calling
CQ during day light hours and see what signal strengths the Reverse beacons
give you. http://www.reversebeacon.net/main.php
Problem with doing this
Gary you have specs and part number on those cores?? What are the specs for
160M?
--
Jim K9TF
All good topband ops know how to put up a beverage at night.
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Topband Reflector
I will be in San Diego, CA on Field Day weekend. Any good Field Day site to
visit with some Top Band operators? I will be staying a few miles form
Miramar visiting my daughter and new grandson.
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Jim K9TF
All good topband ops know how to put up a beverage at night.
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Topband
I had seen when those factors a long with a full moon or new moon that
pulls the magnetic field more, What else helps use here in Wisconsin is the
Solar Wind when it comes out of the South.
All the other factors have to aline and if the sun just does not cooperate
we are just SOL.
--
Jim K9TF
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