On Wed, 1 Apr 2009 06:10:06 -0500, Phil & Debbie Salas wrote:
>"I'll be vacationing in NC this summer at a nice cottage in the mountains.
>Taking my K3, what is the best portable antenna to take with me for that
>week.
My "strong opinion" is to "be prepared" for a variety of possible
conditi
Chas,
I use two mobile "ham stick" antennas for my K1 - 20 and 40 meters. I've
attached a mobile truck mirror mount onto a tent stake. When I travel, the
ham sticks (broken down) are about 4 feet in length. I put my K1,
batteries, key and the mount/stake combo in a cushioned lunch bag. I also
The HFPACK yahoo group has conducted tests of shortened antennas which seem
to indicate that losses in loaded antennas are quite small when the total
antenna length is at least half the full length. They compared to reference
full-length antennas *at the same height*. As to bandwidth, the automa
Eric, K7TV wrote:
The HFPACK yahoo group has conducted tests of shortened antennas which seem
to indicate that losses in loaded antennas are quite small when the total
antenna length is at least half the full length. They compared to reference
full-length antennas *at the same height*. As to ba
Ron, I agree on all points.
My first antenna was a 40 m dipole with vertical end sections at about 35
ft. Initially I fed it with 300 ribbon cable. Although the antenna was cut
roughly for 40m it was probably a bit off. The SWR would have been a minimum
of roughly 4:1 but with the vertical ends
Eric, K7TV wrote:
>The HFPACK yahoo group has conducted tests of shortened antennas which seem
>to indicate that losses in loaded antennas are quite small when the total
>antenna length is at least half the full length. They compared to reference
>full-length antennas *at the same height*. As t
I have some extra portable antennas that are not getting any use that are
available:
W3FF Buddy Stick with blue mast, new in case $110.
ATX Walkabout 80-10 $75.
Howard
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It will be quiet on receive and quiet on transmit, however much power
you put into it, until it melts, that is. I'd love to know where he
gets his efficiency figures - perhaps you can ask him. Putting steel
washers at each aluminium joint turned me off completely along with the
dinky receivin
:30:25 +
> From: d.cut...@ntlworld.com
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Portable Antennas (mag loop)
>
> It will be quiet on receive and quiet on transmit, however much power
> you put into it, until it melts, that is. I'd love to know wher
I bookmarked the site - thank you. However, I didn't get very far the first
time when I saw the comment "must be 1/2 wavelength above the ground..."
Still would like to go back and review the entire article.
Brings back a humorous dialog from years ago. One ham expressed the desire
to build a
I agree about the statement re height above ground which needed
qualifiying a little particularly as they then made measurements
somewhat less than that. The main thrust is about losses and the more
removed from ground and nearby objects the less the loss due to the very
high intensity of the
I have a small magnetic loop that's used strictly for receiving. It's a
Pixel loop with a preamp (from the same company) and I was astounded at how
well it works. I located it about 10 feet up on a rotor, about 50 feet away
from the house. It is incredibly broadbanded. While it doesn't quite hear
w
It was presented at a QRP conference, after all (and I'm more of a QRO
proponent) so I imagine the dinky capacitor didn't worry them too much.
My MFJ loop is working pretty darn well so far. I'm sure I'll have to
take it down and fix it eventually, but I have 54 countries worked this
year since I
Just returned from another two weeks in the UK, this time bringing my KX3.
My wife and I visit her mother in the Borders area of southeastern Scotland
four (+/-) times a year. I duplicated Wayne Burdick's kit as closely as
possible, but it's really a nice weather sort of system and, frankly, I've
What I particularly like about the near end fed is that you are more in
control of the local stray capacitances and such like and you only need
one slender wire in the sky. I wrote a power point on the subject which
needs a bit of massage but I can send it to you for interest.
73
David
G3UNA
I haven't been following this thread closely but has anyone mentioned a
small magnetic loop like the Alex-Loop? I've got a good SOTA friend who
uses one and loves it.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org
On 5/9/2012 2:47 A
Hi Fred
I have been very tempted by the Alex-loop, but in the meantime have just
bought one of G4TPH's loops which I shall put through its paces when the
weather improves! I should imagine that the insensitivity to electric
fields in the near field would be an advantage in electrically noisy
envi
nt from my BlackBerry device
-Original Message-
From: Stephen Prior
Sender: elecraft-boun...@mailman.qth.net
Date: Thu, 10 May 2012 08:55:54
To: k6...@foothill.net
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Portable Antennas (near end fed)
Hi Fred
I have been very tempted by the Alex-lo
I wouldn't buy a loop. IF you only have those 3 choices, I would go for
the Buddipole, but I'm sure there must be other choices out there, I
don't like spending a lot of money on antennas unless it offers
something really special. Have you seen the Bravo?
See http://n6bt.com/n6bt-Bravo-dayt
...@mailman.qth.net; k6...@foothill.net
Cc: Elecraft list
Subject: Re: [Elecraft] Portable Antennas (near end fed)
I for one am in a quandary on what to get at Dayton
A buddipole, Alex loop, or g4tph. Being a road warrior, need a good working
interior (most times hotel rooms are not accessible to the
Every time I've tried this, results have been poor. There is so much electrical
wiring,
fluorescent lights and and other devices nearby that noise is awful. Bigger
hotels are
often built with reinforced concrete, etc. A balcony or openable window is the
best choice.
On 5/11/2012 9:09 AM, Mike
I think you've hit the nail on the head: couple your K series to the
internet using a decent outdoor aerial at home. Spend your money for
effective communication and avoid all those nasty emc troubles in hotel
rooms, unless you can poke a wire out of the window. BTW, you probably
need permiss
?
Robert
a 'kosher' ham
Sent from my BlackBerry device
-Original Message-
From: David Cutter
Sender: elecraft-boun...@mailman.qth.net
Date: Fri, 11 May 2012 17:24:48
To:
Subject: Re: [Elecraft] Portable Antennas (near end fed)
I think you've hit the nail on the head
On 5/11/2012 8:16 AM, va3...@gmail.com wrote:
> I for one am in a quandary on what to get at dayton
>
> A buddipole, alex loop, or g4tph.
The LAST thing I would go for is any form of loaded antenna, because
they tend to have poor efficiency, limited bandwidth, and are
expensive. Small loops (sm
e antennas for
> transmitting) being easy to rotate by hand to try to null noise or QRM.
>
> 73 - Mike WA8BXN
>
> ---Original Message---
>
> From: va3...@gmail.com
> Date: 5/11/2012 11:27:40 AM
> To: elecraft-boun...@mailman.qth.net; k6...@foothill.net
> Cc: Elecraft
about 4 years ago i successfully used a telescoping crappie fishing
pole or a folding shock-rope tent pole I forget which on a cruise
ship balcony with my k2. we were up maybe 80-100 feet above the water..
The #22 line went out to the end of the pole (12-??ft) then dropped
down another
On 5/11/2012 10:46 AM, Tom Azlin N4ZPT wrote:
> My experience in a hotel room is they do not work well at all. Seems
> like you are inside a cage with RFI emitters all around you. Even high
> up in the hotel.
Right. Trying to operate on the HF bands with an antenna inside of a
metal frame buildin
At 03:16 PM 5/11/2012 +, va3...@gmail.com wrote:
>I for one am in a quandary on what to get at dayton
>
>A buddipole, alex loop, or g4tph. Being a road warrior, need a good
>working interior (most times hotel rooms are not accessible to the
>outside) portable.
>
>And a partridge in a pear tre
ail.com
To: elecraft-boun...@mailman.qth.net
To: k6...@foothill.net
CC: Elecraft list
Date: May 11 16:15:27
Subject: Re: [Elecraft] Portable Antennas (near end fed)
At 03:16 PM 5/11/2012 +, va3...@gmail.com wrote:
>I for one am in a quandary on what to get at dayton
>
>A buddipole, alex lo
The fishing pole gambit is a favorite for vacationers who want to do some
stealth operating from their seaside rentals. They take a surf fishing pole
- some are 20 feet long when assembled - and do like many surf fishermen
when not on the surf. They prop them up assembled on their balcony rather
th
On 5/11/2012 3:22 PM, Ron D'Eau Claire wrote:
> I'd not be surprised to see someone operating an HF rig without
> permission have their equipment confiscated until returning to port
> and possibly find themselves banned from future passages on the ships
> of that line.
Remember also that operatio
David and All,
I have a Bravo 7K, and so far, I find it to be only a "fair" performer.
This assessment is based only on limited testing against my Sigma 40XK
vertical dipole, which is another N6BT design from his time as owner of
Force12. So far, I've only been able to run limited A/B tests on
I have a Sigma-5 from Force 12 when Tom owned the company, and haven't
really tried it out. Being retired now and having more time to play with
antennas, and with the nice weather that we've been having, I'm having
all kinds of fun. Just put together the Alexloop Walkham late yesterday.
Hopefull
On 09/08/2012 10:06 PM, Dennis L. Haarsager wrote:
> Just returned from another two weeks in the UK, this time bringing my KX3.
> My wife and I visit her mother in the Borders area of southeastern Scotland
> four (+/-) times a year. I duplicated Wayne Burdick's kit as closely as
> possible, but it
Dennis,
Here's another vote for a fiberglass pole and wires. I have a DK9SQ
pole that was imported by N8ET/KangaUS that I have used for many
years. It's very flexible (both mechanically and operationally) and
you can usually sneak them on an airliner as your "personal item." I
believe that ther
ubject: Re: [Elecraft] Portable antennas for use in UK
>
> You could get a 12m telescopic fiberglass pole from Spiderbeam and use
> whatever wire antenna you want with it. Use it as a center support for
> an inv vee or for a wire vertical. My own crazy balcony antenna is a
> full size
September 09, 2012 10:27 AM
> Subject: Re: [Elecraft] Portable antennas for use in UK
>>
>> You could get a 12m telescopic fiberglass pole from Spiderbeam and use
>> whatever wire antenna you want with it. Use it as a center support for
>> an inv vee or for a wire vertical. M
UA9CDC
- Original Message -
From: "David Cutter"
To: "Jon Kåre Hellan" ;
Sent: Monday, September 10, 2012 8:17 PM
Subject: Re: [Elecraft] Portable antennas for use in UK
Hi Jon
I tried a Hams4Hams 18m pole and I am not strong enough to push it up
vertically. The
it
single handed, I find it much easier to use a 20ft gin pole.
73 to all
Geoff
G3UCK
-Original Message-
From: Igor Sokolov
Sent: Monday, September 10, 2012 3:21 PM
To: David Cutter ; Jon Kåre Hellan ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Portable antennas for use in UK
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?
As
All this talk about the AX-1 has stirred me up. My wife and I fly to Utah
once or twice a year to visit grandchildren. I have a KX3. Although I am
sure the AX-1 is a nifty and convenient antenna, I had stuff laying around
here, so I built a portable antenna that collapses into a 2 foot length/.
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 20m
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 I'
: 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 set
ender: elecraft-boun...@mailman.qth.net
Date: Sun, 6 May 2012 22:36:28
To: ; Bernie KF0QS
Subject: Re: [Elecraft] Portable Antennas (Is there an "easy" button?)
Hi Bernie,
There will be many opinions, here are mine. There are many different
antennas each with its pros and cons. You
: 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
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 configurati
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 o
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
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 are
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. Y
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 - AD
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
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
broa
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 wrote:
> I agree that the EFHW is a good performer and it's a main play
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 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 to build one
> (or
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 wrote:
> Forgot the link - sorry about that!
>
> http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf
>
>
> On Tue,
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 (Is
esday, May 08, 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, 20
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 high
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 ear
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 ma
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
___
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
http://www.hamradio.me/antennas/lnr-precisi
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
Dave,
I used to take an FT-817 and wire antenna through airport security (TSA)
when I travelled for work. Never had an issue. Put it in your carry-on, and
let TSA inspect it if they check your bags. You may actually want to leave
the battery in, in case they ask you to turn on your rig.
73 de,
I
Dave:
For the most part I get through security without any problems. I just
did a round trip to PJ4 and no one in security seemed to blink. IMHO,
it really depends on the person running the xray machine. Last year I
had a 1500 watt amp and K3 with me, and neither was even opened. If
anythi
Bringing a transceiver and power supply in your carry-on is not
against airline regulations and you will not be hassled. I am not sure
what batteries a KX3 takes, I believe that there are some battery
regulations.
John KK9A
Dave Sublette k4to wrote:
All this talk about the AX-1 has stir
My KX3 takes NiMH batteries and as far as I know, airlines do not care about
them. The main concern would be Lithium but even my laptop has Li batteries
and that is always accepted.
73, phil, K7PEH
> On Jun 3, 2019, at 7:12 PM, j...@kk9a.com wrote:
>
> Bringing a transceiver and power supply
I am sure there are just as many horror stories as "I've never had a problem"
stories. Such as the time I was carrying a small Ten-Tec shortwave receiver and
was detained for almost half an hour while the agent stared and actually asked
me, "Voices come out of this thing?"
Meanwhile, an alar
I have carried thousands of $$ of test equipment and HF equipment in as
carry on and chequed luggage, as recently as 4 months ago. Never an issue.
They will swipe it for Nitrates and then let you go.
Your biggest concern is the total wattage of the battery. Check the web
site for your carrier a
On 6/3/2019 7:47 PM, Michael Walker wrote:
I have carried thousands of $$ of test equipment and HF equipment in as
carry on and chequed luggage, as recently as 4 months ago. Never an issue.
More than a few contesters drag radio gear several times a year to
island stations in the Caribbean. On
That is a nice way to carry two radios if you don't mind lugging the
weight on your shoulder though various airports or being able to carry
much else. Be careful however as most U.S. airlines have a maximum 9"
width on check-in bags. I put a singe K3S in a Rose bag inside a
Samsonite carry
In other trips, I have carried a camera backpack that far exceeds those
widths, even on CRJ's in the Caribbean. There was no way I was checking a
camera back worth a lot of money and far more fragile than my Amateur
equipment.
You will have to be nice and work with the people at check in. I fin
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