Indeed AA5TB EHFA's web page was an eye opener for me.
I've since studied the PAR (LNR) multi-band (40, 20 and 10) EFHW product
with particular focus on the transformer box.
http://www.hamradio.me/antennas/lnr-precision-ef-102040mkii-examination.html
Howdy John:
I use the PAR 40/20/10 for my field ops...I loaded this antenna up on 15M using
the KAT2 tuner in my K2 and worked some DX with it.
It loaded up easily and seemed to perform OK on 15Mso I guess it is
possible.
73, Joe W2KJ
On the topic of solder-less banana plugs for antenna wires ... I really like
these plugs from Radio Shack :
http://www.radioshack.com/product/index.jsp?productId=2102839
The picture doesn't do it justice. The plastic insulator part unscrews
revealing a small screw-on metal sleeve underneath.
After watching Stan Video last night I placed an order for a few
T-106-2's to build the transformer...looks pretty straightforward and
inexpensive. Tnx Stan
Tom, WB2QDG
K2 1103
On 5/7/2012 1:43 PM, Jim Lowman wrote:
Enjoyed the video, Stan. I may look into one of these.
72/73 de Jim -
Tom, it's by no means a perfect antenna but it *does* perform quite well
for me. Generally, a coax length between 16 feet and 33 feet works just
fine. I've used over 50 feet with no problem. If you encounter
strange happenings, play with the coax length (+/-). I've found the
real appeal
I agree that the EFHW is a good performer and it's a main player in my
portable arsenal. However, I give little to no credence in the comparison
featured in that linked video. There's no evidence that they're remotely
aware of the azimuthal pattern of the 135ft OCF on 15M. Hint, it's NOT
Here is a good link for the EFHW which details the matching box that is
discussed in the video. I just ordered some supplies today to build one
(or two) of these.
Burke Jones
N0HYD
KX1
On Tue, May 8, 2012 at 12:06 PM, N1EU n1eu.ba...@gmail.com wrote:
I agree that the EFHW is a good performer
Forgot the link - sorry about that!
http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf
On Tue, May 8, 2012 at 1:11 PM, Burke Jones burkejo...@gmail.com wrote:
Here is a good link for the EFHW which details the matching box that is
discussed in the video. I just ordered some supplies today
One more question...
Where can I get one of the small ABS boxes like the group sells and is show
in the video?
Burke Jones
N0HYD
KX1
On Tue, May 8, 2012 at 1:12 PM, Burke Jones burkejo...@gmail.com wrote:
Forgot the link - sorry about that!
the use of the balun
A ground system as simple as a single radial will improve results in most
cases.
73 - Mike WA8BXN
---Original Message---
From: Burke Jones
Date: 5/8/2012 2:22:45 PM
To: N1EU
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Portable Antennas
, 2012 2:47 PM
To: N1EU
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Portable Antennas (Is there an easy button?)
One more question...
Where can I get one of the small ABS boxes like the group sells and is show
in the video?
Burke Jones
N0HYD
KX1
On Tue, May 8, 2012 at 1:12 PM, Burke
Rex,
It could be a 2 element parasitic array for 20 meters - where it is a
little shorter than a half wave, but the reflector or director would
have to be resonant on the band of operation.
A wire of that length would work with a low radiation angle on 15
meters, but the lobes will be at a
Don, that's my antenna and I shot that video with Tony W1ZMB. All we
wanted to do was publicize a rather inexpensive and workable alternative
to those heavily marketed and very expensive shortened antennas that
promise the world at your doorstep and often fall short.
I used that antenna to
A couple of observations based on antenna principles and my personal
experience:
1) A dipole is a dipole no matter where it's fed. A 1/2 wave dipole
(Hertzian antenna) is more efficient than anything shorter (no matter how
often the manufacturer puts magic in the ad copy :-) although, with great
Another popular way to end-feed a half wave wire is to parallel-tune the
coil to the band in use. The obvious question then is whether that
arrangement can result in even higher voltage on the antenna, and thus
better results. My guess would be yes, especially if the transformer step-up
ratio is
There are some great resources out there: I'm surprised no-one has
mentioned the near end-fed QEX articles written by Ron W6WO or
AA5TBhttp://www.aa5tb.com/efha.html
or W8JI
http://www.w8ji.com/end-fed_1_2_wave_matching_system_end%20feed.htm
David
G3UNA
During my hotel ops last summer in westlake village, CA I used a 1:1 dipole
balun attached to a MFJ telescopic pole and hung it off a best western balcony.
Had a dipole cut for 20 and one for 6m. Worked Europe, south pacific on 20. And
was able to work Oregon and Washington with this
Bernie :
One of the most simple and effective portable antennas is the 44 Doublet,
sometimes referred to as the Norcal Doublet :
http://www.norcalqrp.org/norcaldoublet.htm
This should give you coverage from 40m through 10m with the internal ATUs in
the Elecraft rigs.
I don't like to rely
Enjoyed the video, Stan. I may look into one of these.
72/73 de Jim - AD6CW
On 5/6/2012 6:11 PM, stan levandowski wrote:
Bernie, I'm no expert but I've been a QRP HF CW addict for 52 years and
one solution I've found that works quite well with all my Elecraft rigs
(KX1, K2, K2, and K3) is a
This simple antenna has worked very well with my 3-band KX1 (40-30-20). The
original idea came from WA3WSJ. The antenna consists of a 40-ft radiator that
is tossed up into a tree to form anything from an inverted-L, to a sloper, to a
vertical. There are three 16-ft counterpoise wires that
Dear Folks:
I have a K2/10 (#6922) and a K1 (#1024). I have used the latter in the
field, and hope to use both portable. I have a Buddi-Pole setup, but am
annoyed at how long it takes to set up. I am wondering if you folks have a
suggestion for a really easy portable antenna setup. Anyone?
Hi Bernie,
You might have to trim the antenna wire a bit so that the autotuners
will load it up on all bands, and maybe add one or two extra wires on
the ground side. After that you should have yourself a very good,
compact antenna.
I worked Seychelles on my KX-1 on batteries (2 watts) on
Bernie, I'm no expert but I've been a QRP HF CW addict for 52 years and
one solution I've found that works quite well with all my Elecraft rigs
(KX1, K2, K2, and K3) is a simple halfwave vertical with *no* radials or
any other ground return except for the coax shield. It's not perfect
but
: Bernie KF0QS
Date: 5/6/2012 8:59:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Portable Antennas (Is there an easy button?)
Dear Folks:
I have a K2/10 (#6922) and a K1 (#1024). I have used the latter in the
Field, and hope to use both portable. I have a Buddi-Pole setup, but am
...@hotmail.com
Sender: elecraft-boun...@mailman.qth.net
Date: Sun, 6 May 2012 22:36:28
To: elecraft@mailman.qth.net; Bernie KF0QSham...@ix.netcom.com
Subject: Re: [Elecraft] Portable Antennas (Is there an easy button?)
Hi Bernie,
There will be many opinions, here are mine. There are many different
To: Mike WA8BXN; elecraft-boun...@mailman.qth.net; Elecraft list
Subject: Re: [Elecraft] Portable Antennas (Is there an easy button?)
While I do not have one, I am looking into the alexloop. On eham it has
positive reviews. But don't by the MFJ 1899 (it is quick) but pretty well
useless unless you
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