don't blame them
we educate them by example.
We don't fight the pig because the pig will get you into the mud and he
loves it.
Gentleman's and gentlewoman's are here to stay!
Regards
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com/_topband
Hi Eugene
I heard Toshi very well last year several days long path SSE/SSW around
11:30z. If you have a chance tell him to set some SSE/SSW RX antennas for
NA,
Regards
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Eugene
Popov /RA0FF
Mike
Very interesting signal. I tuned on 3260 and the radar signal was very
strong and let's say unique, two bursts, one narrow band another wide band.
It turns out that I am testing several preamplifiers and the signal on 3260
was Intermodulation coming from the preamplifier. I removed the
An array of loops is two loops for two directions.
Hi guys
The simple solution that is working very well since 2009 is the HWF. Why not
two horizontal loaded loops end-fire. Two identical horizontal loops see
the ground wave signal at the same way Va=Vb and because the 180 degree
out of
Hi Guys
I uploaded the video on YouTube on this link, DropBox is not working.
http://youtu.be/dNBekvzlxgM
Hi guys
The simple solution that is working very well since 2009 is the HWF. Why not
two horizontal loaded loops end-fire. Two identical horizontal loops see
the ground wave signal
signal at the receiver
-13dBm (s9+60) and 13.820 MHz, -20 dBm , the preamp can/may handle it but
these numbers can overload any receiver if you don't adjust the gain. Also
the IM or PIM became a problem , the product of 1890 can be very strong.
Regards
JC
N4IS
-Original Message
brass split bolt and cooper, you can find split bold that can be
buried. High temperature also change the tempera of cooper and with all the
different metals you are set up to failure, it just a matter of time to
happen.
Regards
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun
patter useless.
This long answer is to validate your observation, resonant dipoles does not
provide any difference in receiver performance than your vertical or TX
antenna.
73's
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Richard
Hi John
What is the orientation of you low dipole? I assume similar to XZ0A it is
broadside N-S. In 2010 the SSW SSE propagation that I am calling TELP
started with solid copy for 2 weeks in October of XU7ACY around 11:15z and
at 2 weeks per month until March. 2011 was even better and Dec 29
on his web page,
only after replacing the coax with twisted pair he was able to work 100's of
DX from a military base in YA on 160m.
The results using the new RX system varies form excellent to a perfect
disaster depending on the points above.
73's N4IS
JC
-Original Message-
From
why. By the way Robert
worked WAS on 160 with that antenna from DU7ET.
73's N4IS
JC
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Milt --
N5IA
Sent: Thursday, December 18, 2014 9:56 AM
To: James Rodenkirch; Top Band Contesting
Subject: Re: Topband
will prefer to receive on the Yagi due its
directivity. You won't hear much on the vertical
Regards
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com/_topband
other, hard to pick one.
73's
JC
N4IS
-Original Message-
From: James Wolf [mailto:jbw...@comcast.net]
Sent: Thursday, December 18, 2014 1:30 PM
To: 'JC'; 'Top Band Contesting'
Subject: RE: Topband: Non-resonant receive antennas
Thanks JC,
I agree that the RDF number is significant
N4IS
JC
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of John
Kaufmann
Sent: Wednesday, December 17, 2014 8:59 PM
To: topband@contesting.com
Subject: Re: Topband: 8 circle: DXE vs Hi-Z
Good points about polarization. If the signals and/or noise
with
polarization rotation is providing return in new countries for him.
Regards
JC
N4IS
-Original Message-
From: JC [mailto:n...@comcast.net]
Sent: Tuesday, December 16, 2014 1:02 PM
To: 'Tom W8JI'; 'Lee K7TJR'; 'Bob Tabke'; 'topband@contesting.com'
Subject: RE: Topband: 8 circle: DXE vs Hi-Z
Hi guys
fix other common mode noise, like cables not
grounded, bad grounding, rotor cable 120 ft long working like a vertical,
etc, It is necessary detune them all.
Regards
JC
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
Sent: Tuesday
/dxsd1/dxsd1.php?f=0
http://www.reversebeacon.net/dxsd1/dxsd1.php?f=0c=ea7ppt=dx
c=ea7ppt=dx
just unbelievable!!
73's
N4IS
JC
show/hide my last filters
rows to show: showing spots for DX call: EA7PP
search spot by callsign
de dx freq cq/dxsnr
difference from 52dB.
You can download the raw data report from any time and any day for the last 5
years here
http://www.reversebeacon.net/raw_data/
Regards
JC
N4IS
show/hide my last filters
rows to show: showing spots for DX call: IQ9UI
search spot by callsign
de dx
Hi Jose
That was me. I was testing my new RX antennas comparing signals from Europe
during the contest . WOW you guys have the best site for 160m in Europe, I was
impressed with the signal and the reports on RBN, really signal as local signal
in US.
Regards
Jose Carlos
N4IS
-Original
wall warts.
So watch out is you have Comcast cable modem, it is necessary to choke the
cable and the AC cord with FT240 # 31. With this fix ,the noise dropped from
s8 to s0 but still audible at Doug receiver.
Regards
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com
One excellent example of use vertical array for HF on the beach was VP6DX
Ducie Island 2008
http://ducie2008.dl1mgb.com/equipment/index.php
Fantastic performance and results.
N4IS
JC
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_
Topband
as well. The perception , and here you are 100%
right, the perception on the receiver end could be 10 to 20 d.
George has been very busy with is new business lately, however I will invite
him to run some tests next month, and present here the results.
My two cents.
JC
N4IS
to his signal with 5w. We did some
tests 3 or 4 years ago. Now with RBN we can run some tests again next fall.
Regards
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Hardy
Landskov
Sent: Monday, August 11, 2014 10:23 PM
To: Yuri Blanarovich
I owned a FT2100Z for several years and the power on 160m was the same as
other bands. I don't expect any design flaw. The original tubes are not
available anymore, the 572's tubes manufactures nowadays are different and
optimized for audio applications and does not perform at the same level as
This antenna was evaluated before and published in QEX May June 2005
Just google Broadcast CFA antenna
73's
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Guy
Olinger K2AV
Sent: Thursday, April 10, 2014 2:43 AM
To: Bill Aycock
Cc: Michael
plane does, and in this case it is the same, right?
73's
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com/_topband
with the same RDF should perform similar.
The WF is a different antenna, it's a rotatable pair of loaded loops. Each
loop is open and loaded with a resistor.
Regards
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com/_topband
from HF or VHF
Regards
JC
N4IS
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Topband Reflector Archives - http://www.contesting.com/_topband
to Low Band Propagation . Magneto-iomic Theory pag 47
to 56 ; and Power coupling pag 57.
Thanks to Karl. K9LA, the book is available on his also must read site on
the 160m link
http://k9la.us/html/160m.html
Regards
JC
N4IS
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Topband Reflector Archives - http
Hi Carl and top-band lovers
I would like to mention Chapter 7.6 as well, polarization matching, and also
7.7 Fading. I started developing my HWF early 2009 and I think there is no
more to squeeze from it.
Here some update in respect of polarization on 160m. It is a game!, vertical
and horizontal
with a good Preamp from KD9SV and a Delta
Flag antenna using twisted pair. Without the RTR-1 the system would not
perform well as it did.
Just my two cents.
Regards
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of James
Rodenkirch
Sent: Monday, January
KHz almost 100KHz up and down 1838. This is a growing problem.
73, JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Mike
Waters
Sent: Monday, December 30, 2013 1:31 PM
To: Tom W8JI
Cc: Topband
Subject: Re: Topband: Digital mode spurious issues
Bruce
I lost several resistors on my WF until I started to use NTE 3 W Metal on
the vertical Waller Flag and on the Horizontal WF I am using an array of 9
parallel/series.
http://www.nteinc.com/resistor_web/pdf/threew.pdf
Since that I never replaced it a single time in the last 4 years. The
Here is the K7AGE posts video of WLW's 1932 500,000 Watt AM transmitter
http://forums.qrz.com/showthread.php?398944-K7AGE-posts-video-of-WLW-s-1932-
500-000-Watt-AM-transmitter
Enjoy it
Regards
JC
N4IS
_
Topband Reflector
/2013 2:10 PM, JC N4IS wrote:
50/75 BALUN
Thanks for the detailed post, Carlos. BUT -- please let's use the right
words to describe things so that people understand what you're describing
and how it works. I strongly suspect that at least some of those things you
are calling a balun are really
If you plan to use the antenna on 160m you'll need 73 material. 43 works 3.8
up.
Regards
JC
N4IS
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of James
Rodenkirch
Sent: Monday, August 05, 2013 2:20 PM
To: Shoppa, Tim; BY THE LAKE; topband
The rhombic at W1AW was used on 20 meters IIRC.
Craig K1QX
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