The correct URL is:
www.qsl.net/k1fz/1925recording
Original message
Date: Fri, 2 Nov 2012 16:48:32 -0700
From: Bruce k...@myfairpoint.net
Subject: Topband: 1600 meter low band
To: topband@contesting.com
Wave (Beverage) antennas were used at the Radio Corporation of America radio
A ham friend asked me to design a matching network for his 160 metre end fed
quarter wave, so I asked him to provide an impedance reading using his
MFJ-259B. I would then use the Berkley site
(http://bwrc.eecs.berkeley.edu/Research/RF/projects/60GHz/matching/ImpMatch.html
) to provide the
Tom,
I will be interested to see what the solution(s) will be for the BC station
interference.
Wanted to thank for the reference to the impedance problem calculators. They
are great!
73,
Bob
K6UJ
On Nov 2, 2012, at 2:21 PM, Tom Boucher wrote:
A ham friend asked me to design a
I have the same problem with a 50KW FM station a couple of miles away
affecting my Palstar ZM-30. It is useable on the rig side of an antenna
tuning unit, but most of my antennas are self resonate therefore the FM
broadcast RF rides right into the bridge making it mostly worthless when
directly
MFJ makes a filter for their Antenna analysers. I am sure that if it does not
work for you, you can get your monies back.
73..Price W0RI
I have the same problem with a 50KW FM station a couple of miles away
affecting my Palstar ZM-30. It is useable on the rig side of an antenna
tuning
Hi Tom,
I used to have the same problem with my N2PK VNA, but then I put a
switchable high pass filter in before the detector - after the
reflection bridge that is. Provided that the VNA calibration is done
with the filter switch in the same state as you intend to do the
measurement, it has
At 21:21 02/11/2012, Tom Boucher wrote:
.. but how to use the antenna analyser in the presence of a high
BC station field. Anyone any ideas?
Hi Tom,
I have 2.4KW of MW BC transmitter 300m from the base of my 160m
antenna, so I know the problem. I've found an ICE BC filter to be
pretty
It is a common solution to put a 160 meter band pass filter on the SWR
meter and it will work.
I had to do this on both 160 meters and 80 meters at A73A. The high power
AM station was miles away.
Tree N6TR
On Fri, Nov 2, 2012 at 3:22 PM, HAROLD SMITH JR w0ri...@sbcglobal.netwrote:
MFJ makes
Oops, I meant 910 kHz, not 920.
On Fri, Nov 2, 2012 at 8:40 PM, Mike Waters mikew...@gmail.com wrote:
Does anyone else have the constant carrier on 1820.0 at night? I've heard
it for weeks, and it's interfered with several DX stations that I was
trying to copy.
And I see I'm not the only
Mike,
We have the same situation as you.
1820 is noisy in JA too.
73's
---
Harry
JG7PSJ,JD1BMH,KW2X
On Fri, 2 Nov 2012 20:40:55 -0500
Mike Waters mikew...@gmail.com wrote:
Does anyone else have the constant carrier on 1820.0 at night? I've heard
it for weeks, and it's interfered with several
Having not heard our digi for a while, I decided to do a licence check
on the website of the licensing authority here in ZL. The Digi's
licence for 1818.5 kHz was cancelled a few months back.
While it was a bit of a nuisance for us here in ZL, I know there were
many folks who used it for a
MFJ sells a filter for that but I dont know how well it works around serious
BCB RF; 10KW at the high end of the band in 2 directions in about 7-8 miles
doesnt bother my unfiltered 259B nor do the FM and UHF TV sites about 2
miles away.
Carl
KM1H
- Original Message -
From: Chris
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