I learned NOT to ground Beverage feedline on antenna side.
Using K9AY Remote-Powered Preamplifier PRE-1 the feedline IS grounded as far as
the preamp mounting bracket should be grounded.
How to overcome ? Any hints, please.
73 de Thomas, DL1AMQ
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Topbanders,
thank you for the comments so far.
With the initial setup the feedline crossed the entire run in the air,
high enough to let even cars with antennas pass under it.
After i buried the feedline, the antenna had become so quiet that i
checked for loose connections at the feedpoint and
On paper I agree but what about real world? Topbanders seemed to do quite
well with the old 43 mix and the resultant lower impedance.
How much is good enough?
That's a good point.
It seems we tend to go to extremes of black and white and abandon common
sense or reasoning in everything we do
Hello
Wich antenna wire do you use for large delta loops for 160 and 80 mts, or
other wire antennas?
I did something with Polys-13 from DavisRF, but not sure if I need a thicker
wire to run high power
My 80 mts delta loop wire is very dark over 5 years, and was broken at one
of the
Um -- what did you say was the typical skin depth of soil at 2 MHz?
Somehow, I seriously doubt it was down that far. :)
Common mode suppression requirements depend on things:
1.) The sensitivity of the antenna to all signals, either bad unwanted
signals like noise or good wanted signals.
I doubt the wire broke at corner because RF is too high. Mechanical dressing at
any corner is far more relevant.
The stranded Polystealth is good stuff, will survive bends without good
mechanical stress relief much better than solid copper, but
it too will break at a corner after enough flexing
In the real world, receiving (or transmitting) problems are often caused by
faults rather than by inadequate design. The most common problems are
connectors and deteriorated coaxial cable caused by poor installation practices
and moisture entry.
Faults are best found through regular
Hi folks-
Certificates for the 2011 ARRL 160 Meter Contest were mailed today. Look
for them in your mailbox soon.
As always, you can track the progress of ARRL contest awards processing
at the following page on the ARRL site:
http://www.arrl.org/plaques-and-certificates
73,
I have just learned this morning that Rod Newkirk, VA3ZBB/W9BRD died
last night.
Old time DX'ers will remember the column How's DX - by Rod Newkirk
W9BRD which appeared monthly since some time in the 1940's until the
1970's.
About 20 years or so ago on 40m CW, Rod, W9BRD worked Betty,
Steve,
I have an inverted L with 32 feet vertical and then 96 feet horizontal
leg. The horizontal leg runs southeast and slopes from 32 down to 10
feet at the last 15 feet of its run. The antenna is resonant with SWR
of 1.3 at 1.810. It is fed directly with 50 ohm coax. No chokes, coils
or
On 2012-11-20, at 12:22 PM, Bert Barry wrote:
I have just learned this morning that Rod Newkirk, VA3ZBB/W9BRD died last
night.
Old time DX'ers will remember the column How's DX - by Rod Newkirk W9BRD
which appeared monthly since some time in the 1940's until the 1970's.
About 20
Tom wrote: There should be more focus on telling people how to find
problems, and less on treating every system the same.
That is a great suggestion, Tom. Can you recommend a resource that gives a
cookbook approach to identifying and resolving problems?
Brian K1LI
We need to put gorilla detectors in SWR meters.
Loss in the ground counterpole will be the thousand pound gorilla in the
room. Heavily bent antennas as you describe lower the radiation resistance
significantly, which makes the resistance of the counterpole even more
critical than for a pure 125
Steven Raas wrote:
Main Element: 32 feet vertical - 90 deg bend ( the 'L' ) which runs
43' horzontally pointing north. Then, another 90 deg bend, and
ascending 26' in length ( from 30' up to about 11' above ground
running from west to east. ), then..you guessed it.. another 90 deg
bend that
As Ive mentioned here many times I started by removing noise sources around
the house as well as at a few cooperative neighbors. That involved Mix 33
1/2 x 7.5 rods and 43, 75 and 77 mix 2.4 toroids. Ive been doing this for
decades at 2 homes and long before most of the current crop of noise
Replace existing #43 stuff that's working? No way. Do any NEW #43 stuff
for low bands? No to that also.
The proper mix is dependent on many things, not just net impedance.
We have to consider core stress. Resistance heats, while reactance doesn't
heat. Sometimes higher Q cores are
After a full summer spent on 160M, with great results... here we are, on
the winter.
Guys, do you know what I say? I think it was better (for me) in the summer,
hee.
Unfortunately between my mountains the situation sounds very difficult: a
lot of traffic, a lot of people, a lot of operations...
Keep me posted as I need that on 80 and 160 but would be happy for just 80
Will be in the CQ WW this weekend. Got a HI Z 8 vert array going at the
farm.. Sound pretty good..
-Original Message-
From: topband-requ...@contesting.com
Sent: Tuesday, November 20, 2012 12:00 PM
To:
Hello Charlie,
Nice to see you on the web.
In the early 50s, we would send in contact information to Rod and he would
publish some in QST How's DX.
I sent one in with some QSOs on 10 meter AM and CW.
Rod put in the publication : W0CKC actually worked someone on 10CW.
W0CKC was my first call
Logs are on LoTW. Incredible. Those guys are amazing!
Thank you es 73!
Bob AA6VB
Sent from my iPhone
___
Topband reflector - topband@contesting.com
They were on a lot last week, but I have seen very few spots
the last few days. Are they finished with 160 meters?
The original plan was to be on during all dark time.
Rick N6RK
___
Topband reflector - topband@contesting.com
Booming in on 1825.5 right now at 0331z here in Florida
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Rick
Karlquist
Sent: Tuesday, November 20, 2012 10:23 PM
To: topband@contesting.com
Subject: Topband: Is PT0S still on 160M?
They were on a lot
They had a lot of WX problems, rebuilding antennas destroyed by the sea waves
but they are doing the best, they really are heroes in this small place, just
four ops to do all the work
Will be there till next weekend, cqww cw included
73,
Jorge
CX6VM/CW5W
Enviado desde mi BlackBerry® device
They had been up on 80 cw earlier tonight but QSY to 160 at 10 pm local time,
0300z Wed, on 1825, listening up 2 and with best signal I have hrd them
so far (in FL), wkd with 200 w out and 70 foot longwire, after I had thrown
down a
sketchy radial field. Best around 04 z and was working a mix of
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