ubject: Re: [Elecraft] AX1 40 meter coil with KH1
On 3/5/2024 9:28 AM, William Combs via Elecraft wrote:
> I was wondering if the 40 meter coil from the AX1 could be used with
> the KH1.
Howdy William...
I use the AXE with the KH1 for 40m with the 32ft counterpoise from the
AXE kit. I am
On 3/5/2024 9:28 AM, William Combs via Elecraft wrote:
I was wondering if the 40 meter coil from the AX1 could be used with
the KH1.
Howdy William...
I use the AXE with the KH1 for 40m with the 32ft counterpoise from the
AXE kit. I am able to get a good enough match to operate on 40m and
I was wondering if the 40 meter coil from the AX1 could be used with the KH1.
Don’t know if it would connect to the KH1. But now with the new right angle
connector (not yet released), it would seen more likely to be a possibility. Or
not?
Bill
W8BC
Subject: Re: [Elecraft] AX1 on tripod
Is this perhaps what you saw?
https://elecraft.com/products/axt1_axt1-tripod-adapter
On Sat, Jun 24, 2023, 13:24 David wrote:
Hi
I’ve just been to the Friedrichshaven radio show and the Elecraft stand was
demonstrating the AX1 mounted on a tripod
Is this perhaps what you saw?
https://elecraft.com/products/axt1_axt1-tripod-adapter
On Sat, Jun 24, 2023, 13:24 David wrote:
> Hi
> I’ve just been to the Friedrichshaven radio show and the Elecraft stand
> was demonstrating the AX1 mounted on a tripod. Unfortunately they only sell
> it as a
Hi
I’ve just been to the Friedrichshaven radio show and the Elecraft stand was
demonstrating the AX1 mounted on a tripod. Unfortunately they only sell it as a
kit.
Does anybody know of a camera tripod screw (1/4-20) to BNC adapter?
It looked like a 3d printed plastic connector with a BNC “T”
The short Force 12 Sigma vertical dipoles that N6BT designed were very
impressive. It is too bad that they are no longer manufactured. I have a
multiband one that I bought used and never tried but I like the monoband
ones better. A couple decades ago Team Vertical had very impressive contest
It is in yesterday's archives
Edward Mccann AG6CX wrote:
Re: Jim Brown's comment.
>
> also linked to a long paper that studied the effect of mounting height on
both horizontally and vertically polarized antennas.
Would you mind posting the link. I must have missed it in the traffic.
Thank
Re: Jim Brown’s comment.
>
> also linked to a long paper that studied the effect of mounting height on
> both horizontally and vertically polarized antennas.
Would you mind posting the link. I must have missed it in the traffic.
Thank you,
Ed McCann
AG6CX
Agree, Jim. I have read that one before as well. It was well done.
Dave
On 9/29/2022 9:41 PM, Jim Brown wrote:
On 9/29/2022 11:45 AM, David Gilbert wrote:
Yes, I've previously seen your paper on the vertical dipole with the
coax sleeve.
H Dave,
I also linked to a long paper that
On 9/29/2022 11:45 AM, David Gilbert wrote:
Yes, I've previously seen your paper on the vertical dipole with the
coax sleeve.
H Dave,
I also linked to a long paper that studied the effect of mounting height
on both horizontally and vertically polarized antennas. I consider that
one of my
I deployed an end fed on a Shakespeare Wonder Pole at a cabin on Lake George
one year. The landlord came by and said “what are you fishing for?”
“Electrons,” I replied. It turns out that he had always been interested in
amateur radio and we sat and ragchewed for an hour as I showed him my
On 9/29/2022 11:12 AM, Fred Jensen wrote:
Someone has called the sheriff on me twice while set up on a park bench
with my Alexloop. I suspect the AX1, with or without a counterpoise,
would be less likely to provoke someone to do that. One woman
approached me and asked me if I was the CIA.
t appearances can be deceiving. Most hams viewing
my HOA-friendly WOOF{1} would assume it almost doesn't work. They'd be
surprised.
When the thread got around to co-linear vertical dipoles, I got to
thinking about the Franklin. I can envision an Elecraft AX1-F. With
Cycle 25 climbing, 12 a
For a similar 10M version, look at N1LO's 10M Wire Collinear Super J-Pole
which you can find at Nylo's Notepad Antenna Page. I have built and
installed several of these vertical antennas over the years, hanging from
tall tree limbs and stacked telescopic fiberglass poles.
My EZNEC model shows
The two half waves in phase gain their improved performance by being
spacially separate. The more you load it to shorten the two dipoles,
and the closer you arrange them, the less they provide any benefit. It
would have no benefit at all as a short portable antenna.
By the way, any
The Franklin is two vertical, co-linear half-waves fed in-phase. Google
will offer way more than you want to read. Obviously a large structural
challenge for a full-size one at MF. The one I built as a test was
heavily loaded and worked about like EZNEC-4 predicted. I think it's
Fred-can you share details on this antenna? Not familiar with it. Thanks.
Dan Presley 503-701-3871
danpresley@me. com
n7...@arrl.net
> On Sep 29, 2022, at 12:08, Fred Jensen wrote:
>
> I've long wondered why hams haven't done more with Franklin verticals? KFBK
> [1530 kHz in Sacramento]
Hi Fred,
I compared a similar loop to an AX1 and it was a wash. Stealth ops without
compromising your signal or police record :)
Wayne
N6KR
> On Sep 29, 2022, at 11:12 AM, Fred Jensen wrote:
>
> Someone has called the sheriff on me twice while set up on a park bench with
> my Alexloop. I
I've long wondered why hams haven't done more with Franklin verticals?
KFBK [1530 kHz in Sacramento] uses one located in the southern end of
the Sacramento Valley, and it's known as a Flame Thrower. I think KNBC
[680 kHz?] in SF had one back in the 50's sometime too. They're big at
MF, but
Hi, Jim.
Yes, I've previously seen your paper on the vertical dipole with the
coax sleeve. Interestingly enough, I independently came up with that
same idea many years ago, although I was never certain that I could come
up with a good enough common mode choke to make it work. Your cookbook
One year for Field Day, K7ZB and I were hanging several wire antennas
from the tall Ponderosa Pine trees along a forest service trail on the
Mogollon Rim in central Arizona. A car drove by and a woman got out to
ask us if we were setting snares for bears. She was serious.
73,
Dave AB7E
David,
I've published a LOT of work on concepts like this.
This ran in National Contest Journal about six years ago. It's based on
extensive modeling, and was peer reviewed.
http://k9yc.com/AntennaPlanning.pdf
This was added to the ARRL Handbook or Antenna Book several years ago.
Someone has called the sheriff on me twice while set up on a park bench
with my Alexloop. I suspect the AX1, with or without a counterpoise,
would be less likely to provoke someone to do that. One woman
approached me and asked me if I was the CIA.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
You're talking about a horizontal pair of AX1's ... I asked about them
oriented vertically. That wouldn't require them to be as high above
ground as you mention and would still allow them to be carried
pedestrian mobile.
I modeled a vertical pair at the same height above ground (15 feet)
A vertical dipole does not need high above ground to work well. A good
shortened 160m antenna is a vertical dipole with the ends pulled into a C shape
to reduce the height.
John KK9A
Wayne Burdick n6kr wrote:
We studied this. To provide any advantage over a vertical AX1 with a single
We studied this. To provide any advantage over a vertical AX1 with a single
counterpoise wire, an AX1 dipole would have to be well over a quarter
wavelength above ground, with both halves tuned to resonance, and fed with
low-loss coax and a balun or balanced feedline. Even then the advantage is
Interesting idea.
72,
Rich Hurd / WC3T / DMR: 3142737
Grid: FN20is
Bureaucracy is always in search of self-preservation. — AA7BQ
> On Sep 29, 2022, at 04:14, David Gilbert wrote:
>
>
> Has anyone ever tried to used two AX1's back to back as a vertical (not
> horizontal) dipole? And if
Has anyone ever tried to used two AX1's back to back as a vertical (not
horizontal) dipole? And if so, how did its performance compare to a
single AX1 with the 13 foot counterpoise wire?
Just curious.
73,
Dave AB7E
__
Elecraft
Thanks Wayne for the encouragement. Since I’ve become involved in our local
club-Portland Amateur Radio Club, or PARC , we’ve encouraged members to get out
of the home shack and try outdoor operating. As is true with many urban
dwellers we all fight noise and space issues,and no better way to
And thank you for getting outdoors to operate, Dan. That's the real reason for
the AX line :)
73,
Wayne
N6KR
> On Sep 24, 2022, at 10:09 PM, Dan Presley wrote:
>
> All this discussion about the antenna caused me to carve out a little time
> this afternoon to go to a suburban summit. Perfect
All this discussion about the antenna caused me to carve out a little time this
afternoon to go to a suburban summit. Perfect setting for the AX1 as there’s no
good trees and since it’s also somewhat of a park -wires around and in the air
are frowned on. Also with limited time a quick setup and
Tested out my KX3 portable setup out in the back field today, KX3 to the
AX1 through a 25' RG-58 coax, set up on the tripod mount with the
included counterpoise laying on the ground. I was running FT8 using only
2 watts and had several nice 17m contacts into Japan, plus TX and IN. I
worked a
Sorry,
That was a quick shot due to a false alarm - I had not put on my reading
glasses when reading on the calculator - and I was wrong by about 40
cm...for shame.
73,
Heinz HB9BCB
Heinz Baertschi wrote
> The length of the AX1 whip (extended) is specified in all documents as 45"
> (115 cm).
I measured mine using a cloth tape made for sewing and knitting.
I got 46.5" 118 cm.
Note that these tapes may stretch slightly, so these
measurements aren't accurate to the nearest mm.
73 Bill AE6JV
On 5/17/20 at 9:39 AM, heinz.baerts...@bluewin.ch (Heinz
Baertschi) wrote:
The length of
That length of 46.5 is for the whip itself. When inserted onto the antenna
base, the whip measures 46 inches.
73 Jay K3BH
On Sun, May 17, 2020, at 09:45, Jay Rutherford wrote:
> It is 46.5 inches, or 118 cm.
>
> 73 Jay K3BH
>
>
> On Sun, May 17, 2020, at 09:39, Heinz Baertschi wrote:
> > The
It is 46.5 inches, or 118 cm.
73 Jay K3BH
On Sun, May 17, 2020, at 09:39, Heinz Baertschi wrote:
> The length of the AX1 whip (extended) is specified in all documents as 45"
> (115 cm).
> Can someone please confirm what is correct, 45" or 115 cm?
>
> 73 tks,
> Heinz HB9BCB
>
>
>
> --
> Sent
The length of the AX1 whip (extended) is specified in all documents as 45"
(115 cm).
Can someone please confirm what is correct, 45" or 115 cm?
73 tks,
Heinz HB9BCB
--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft
Hello to all of you,
I made on 22.8.19 a qso with 15 w ssb on 14mc with this little
antenna. It was with ZY40ZT in Brasil, and I was in portable near of
Geneva (Switzerland) 8500km. Not bad for this little antenna.
my rig was KX3.
I just receive the qsl card yesterday...
73 from Switzerland
Pierre,
Congratulations, well done.
So much for low activity.
Get-On-The-Air!
NK 9G
Sent from my iPad
> On Dec 9, 2019, at 9:04 PM, VE2PID wrote:
>
> ... Forgot to mention that all my QSOs with the AXE1-AX1 (100 so far) were
> done in the CW mode.
>
> ... 73, de VE2PID Pierre
>
... Forgot to mention that all my QSOs with the AXE1-AX1 (100 so far)
were done in the CW mode.
... 73, de VE2PID Pierre
__
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
Which mode?
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Dec 9, 2019, at 6:30 PM, VE2PID wrote:
>
> Hi folks ... Today I made my 100th QSO using the AXE1. So far (40 and 20
> meters combined) and with 5 or 10 Watts (KX2-KX3-AXE1-AX1), the average
>
Pierre
That is impressive! Especially from the Great White North!
Mike va3mw
On Mon, Dec 9, 2019 at 9:46 PM VE2PID wrote:
> Hi folks ... Today I made my 100th QSO using the AXE1. So far (40 and 20
> meters combined) and with 5 or 10 Watts (KX2-KX3-AXE1-AX1), the average
> distance of
Hi folks ... Today I made my 100th QSO using the AXE1. So far (40 and 20
meters combined) and with 5 or 10 Watts (KX2-KX3-AXE1-AX1), the average
distance of contacts is 1581 km with a maximum of 5635 km. Very nice
antenna for portable operations. ...
73, de Pierre VE2PID
Hi folks ... Today I made my 100th QSO using the AXE1. So far (40 and 20
meters combined) and with 5 or 10 Watts (KX2-KX3-AXE1-AX1), the average
distance of contacts is 1581 km with a maximum of 5635 km. Very nice
antenna for portable operations. ...
73, de Pierre VE2PID
Dear Gang:
I finally got a chance to try out my AX1 for picnic table ops in a Sunnyvale,
CA park. On day 1, I worked a guy in Phoenix from my KX3 on 20m--after 2 CQ
calls. Day 2, I got skunked. Yesterday, with 20m packed with contest signals,
I put on the 40m coil and immediately worked a
Hi Mike
There is a small metal cylinder coming with the AXE1. The AXE1 fits into
it through a hole. At the other end, the AX1 fits into that cylinder. No
problem here.
BTW be sure that the contact between the cylinder and the base of the
AXE1 is good...
73, de Pierre VE2PID
Hi Mike
There is a small metal cylinder coming with the AXE1. The AXE1 fits into
it through a hole. At the other end, the AX1 fits into that cylinder. No
problem here.
BTW be sure that the contact between the cylinder and the base of the
AXE1 is good...
73, de Pierre VE2PID
I have been having a blast with this antenna set up. Checked in today on
my KX2 with both the Noontime Net 7283.5 and the Jefferson Noon Net 7204,
while walking along the ocean bluff trail near my home at The Sea Ranch,
dragging the counterpoise in the dirt behind me. Stan AA6SC was quite
amused
Great DX, Philippe! Was the whip attached directly to the KX3, or used with a
tripod?
Wayne
N6KR
> On Aug 30, 2019, at 9:29 AM, berub...@focusnature.ch wrote:
>
> Hello,
> Last night I made a qso with my KX3 (15w ssb) and your AX1 MULTI-BAND
> WHIP ANTENNA. I made a contact from the fields
Hello,
Last night I made a qso with my KX3 (15w ssb) and your AX1 MULTI-BAND
WHIP ANTENNA. I made a contact from the fields near Geneva
(Switzerland) and ZY40ZT (8500km). What a nice great "small antenna".
I could not belive it, but I was. Thanks a lot for those really nice
products you make!!!
Bill,
What was the length of the radials?
Bob, KA2TQV
On Tuesday, August 27, 2019, 2:30 PM, William Shanney via Elecraft
wrote:
I ran some comparison tests on 20M with the AX1 against my Buddi Stick
vertical when I first got it. I found the best performance was with the
AX1 on a table
Guys - lots of very good info here, but we are beating this into the ground.
Lets end thread thread for now in the interest of maintaining a reasonable list
SNR. ;-)
Go out and operate, experiment with antennas, including the AX1, and see what
has been discussed in this thread is best for you
What makes you think the wire isn't doing the bulk of the radiating just
because it drags across the ground? Actual RF ground is usually some
distance below the surface, sometimes several feet.
There is a way to prove me wrong on all of this. Connect two AX1's to a
Tee connector coming
And I've worked all over the world with 5 or 10 watts doing it :)
Wayne
> On Aug 27, 2019, at 4:07 PM, Wayne Burdick wrote:
>
> I'm generally walking when I use the AX1 (pedestrian mobile, or /PM). It
> isn't possible to elevate the radial under these circumstances; it drags on
> the
I'm generally walking when I use the AX1 (pedestrian mobile, or /PM). It isn't
possible to elevate the radial under these circumstances; it drags on the
ground. The whip is the radiator.
Wayne
N6KR
> On Aug 27, 2019, at 3:05 PM, David Gilbert wrote:
>
>
> I'll try not to beat this into
I'll try not to beat this into the ground here, but I think the physics
here is important.
As K9YC said in his reply to you, equal currents go in both directions
from the feedpoint ... to the AX1 and to the counterpoise wire. That's
simply physics, and it's true unless currents on the
Yes, of course. I know how things work. And I agree with Don’s comment that
came in in another email while I was typing. That does NOT mean the vertical
element is the “counterpoise" to a long elevated wire (or more than one) a few
feet off the ground. Yes those wires may radiate, but
It is easy to cancel the radiation from the 'counterpoise' - use 2 equal
length wires running in opposite directions from the base. The
horizontal radiation from each will cancel, and all you have left is the
loaded vertical radiator to radiate with vertical polarization.
If they are on the
I don’t think I’m missing anything. You’re basically arguing for an elevated
counterpoise. Of course the AX1 needs a counterpoise. And I run an elevated
counterpoise on most of my portable vertical antennas.
My 31’ portable wire works better than an AX1 most of the time. It’s not
always
The point you're missing is that the AX1 wants (needs) a wire
counterpoise to work very well at all, and since it's that counterpoise
wire that is doing most of the actual radiating you're better off trying
to optimize what you do with it. I don't see how that is so difficult
to understand,
Dave's observation is about how the antenna actually works, as
determined by Mother Nature, and, depending how the antenna is rigged,
he's probably right. Antennas work by carrying RF current, any end fed
radiator needs a counterpoise, which, because it's carrying the same RF
current as the
Not trying to start a disagreement here, but I don’t see the point.
If you want to run a wire antenna, then, good gracious, run a wire antenna.
They work pretty well portable. I carry two in my bag. But I fail to see the
rationale of using the AX1 as a “counterpoise”.
For quick low profile
I think you'll find that for a short vertical radiator and a single
counterpoise wire the maximum radiation is in the direction of the wire. EZNEC
confirms this and I've tested it with a friend the length of California on 40 m
where with the counterpoise pointed away from him I could barely
I ran some comparison tests on 20M with the AX1 against my Buddi Stick
vertical when I first got it. I found the best performance was with the
AX1 on a table top tripod on a picnic table with 2 resonant radials. The
AX1 was about 1 S-unit down compared to the bigger antenna over a 22
mile
Certainly true, and it's great for that, but a lot of the posts here
have been about people using it for more than that ... like camping and
restrictive locations. I'm just saying those folks could get more out
of it by treating it differently, and it would serve a very useful
purpose in
It’s designed for /PM and stealth ops. In many other situations, of course, a
longer/higher antenna will be more efficient.
73,
Wayne
N6KR
elecraft.com
> On Aug 26, 2019, at 9:26 PM, David Gilbert wrote:
>
>
> I think users of the AX1 would be better off thinking of IT as the
>
I think users of the AX1 would be better off thinking of IT as the
counterpoise, and making the most out of what they normally consider to
be the counterpoise wire.
Look at it this way. Unless you have a lot of current on the shield of
the coax (in which case IT is doing a lot of
I brought along a NanoVNA this trip and used it to array the two counterpoise
attached to my AX1 antenna - adjustments of counterpoise brought SWR down
from 9+ to <2. SNRs in the low ‘teens with a 200mW WSPRlite vs upper 20s -
*inside* a hotel room with sealed windows.
As Wayne said, the AX1 is
I picked up an 8-pack of these suction cup window candle holders from Amazon
for $7.99
https://www.amazon.com/Holiday-Joy-Strongest-Christmas-Celebration/dp/B01G6ED64K/ref=pd_lpo_sbs_201_t_0?_encoding=UTF8=1=8QNVHSVD55PT9X9D610K
Three fit on the base tube of the AX1 antenna, clamp it tightly
Bert ;
elecraft@mailman.qth.net
Subject: Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and
:-) Buy US. Buy Elecraft. Plain and simple.
72 & 73,
Bill
K9YEQ
FT'er for K2, KX1, KX3, KXPA100, KAT500, W2, etc.
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf
raft@mailman.qth.net
Subject: Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and
At the factory in California.
Eric
/elecraft.com/
On 8/8/2019 1:53 PM, Bert wrote:
> Where is the original Elecraft AX1 antenna made?
>
> Bert VE3NR
__
At the factory in California.
Eric
/elecraft.com/
On 8/8/2019 1:53 PM, Bert wrote:
Where is the original Elecraft AX1 antenna made?
Bert VE3NR
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help
Wow, Mark! That was very interesting. It may explain a lot of grossly
inflated listings I've seen on eBay. Thank you.Mark, KE6BB
Original message From: Mark Goldberg
Date: 8/8/19 2:43 PM (GMT-08:00) To: David Gilbert
Cc: Elecraft Mailing List Subject: Re: [Elecraft
https://www.thebalancesmb.com/how-money-laundering-works-on-ebay-4145387
73,
Mark
W7MLG
On Thu, Aug 8, 2019, 2:09 PM David Gilbert wrote:
>
> It doesn't seem obvious at all to me that it's a knockoff. There are
> only 2 units available and he's asking way too high a price for a knockoff.
>
>
It doesn't seem obvious at all to me that it's a knockoff. There are
only 2 units available and he's asking way too high a price for a knockoff.
Dave AB7E
On 8/8/2019 11:05 AM, Raymond Sills via Elecraft wrote:
I suspect that Wayne and Eric would take a big exception to the use
of the
I believe it is made in California - but I don't know about the whip.
Wayne will correct me if I am wrong on that.
73,
Don W3FPR
On 8/8/2019 4:53 PM, Bert wrote:
Where is the original Elecraft AX1 antenna made?
__
Elecraft mailing
Where is the original Elecraft AX1 antenna made?
Bert VE3NR
On 8/8/2019 11:05 AM, Raymond Sills via Elecraft wrote:
I suspect that Wayne and Eric would take a big exception to the use of the
Elecraft name in their obvious knock-off product.
73 de RayK2ULRKX3 #211
-Original Message
Well, I actually have three reasons why I think the root of this
discussion has been misguided:
1. Typical portable operation is for casual fun while camping or just
enjoying the outdoors. Squeezing out every last dB doesn't quite fit
that scenario.
2. If you are trying to squeeze out
I suspect that Wayne and Eric would take a big exception to the use of the
Elecraft name in their obvious knock-off product.
73 de RayK2ULRKX3 #211
-Original Message-
From: Grant Youngman
To: Bob McGraw K4TAX
Cc: elecraft
Sent: Thu, Aug 8, 2019 10:58 am
Subject: Re: [Elecraft] AX1
Makes you wonder if the Chinese seller is bonkers or just trolling … ??
Grant NQ5T
K3 #2091 KX3 #8342
> On Aug 8, 2019, at 10:04 AM, Bob McGraw K4TAX wrote:
>
> Just seen on E-Bay. Wow that's some mark-up!
>
> 73
>
> Bob, K4TAX
>
>
> <https://www.eb
Just seen on E-Bay. Wow that's some mark-up!
73
Bob, K4TAX
<https://www.ebay.com/itm/Elecraft-AX1-shortwave-antenna-for-KX3-KX2/123822525879?_trkparms=ispr%3D1=item1cd465cdb7:g:Py4AAOSw6S5dG~Ra=AQAEAAAB0BPxNw%2BVj6nta7CKEs3N0qW3SbHW56wa%2BVvB6ZYG4CB0PET3EW8EaPBoaBSk2%2BhtiDa60cDC49iHmcShl
Dave And All,
Hmmm! I don't quite understand that statement. Why would you worry about
every dB at your home station but not necessarily be concerned on a portable
setup??? I guess maybe you are saying that, when operating portable, just
get the best antenna possible as opposed to a lesser
Then you'd be using the T1 to partially drop the SWR on the coax, but it
still wouldn't be anything close to 1:1 unless the T1 has a much broader
range than the tuner in the KX2. You'd still have some additional coax
loss due to SWR (but less loss, of course) and you'd still need the
tuner
The SWR could easily exceed 15:1, depending on the operating frequency (short
loaded whips can be very narrow banded) and other factors that apply to
portable operation such as radial configuration, ground characteristics, and
antenna height.
Even 2 dB matters when you're using QRP.
Wayne
Scroll down to the original post. We were talking about a KX2 with an
internal antenna tuner. Presumably the tuner works as it should to
present the proper load to the finals.
73,
Dave AB7E
On 8/7/2019 5:29 PM, Mark Goldberg wrote:
You need to take into account the radio finals. When
Some points…
“…dragging along a remote tuner”
Surely you are kidding or you get the award for hyperbole of the day. The T1
fits in my shirt pocket! It is zero effort to bring — no “dragging” required.
And, I operate with 50 feet of coax because carrying multiple different lengths
of coax on
Doesn't much matter. You're still talking a 3 dB difference at most (50
feet vs 30 feet), and while I will be the first to argue the benefit of
every single dB for normal station operation (see
http://www.ab7e.com/weak_signal/mdd.html), I don't understand the angxt
over that 3 dB for
Yeah, i didn't catch that he was going to use the internal tuner and just
forgo the external one at the other end of the coax.
In that case, I agree with Dave.
73,
Mark
W7MLG
On Wed, Aug 7, 2019 at 6:19 PM Wes wrote:
> I haven't been following this thread closely but I think Dave makes good
I haven't been following this thread closely but I think Dave makes good
points. As to the final fold-back, if I waded through this correctly, I
understand that the OP has the built-in tuner in his KX2. That solves that issue.
BTW, SWR = 15:1 is a return loss of about 1.1 dB, not 3 dB.
Wes
You need to take into account the radio finals. When the SWR is high, My
KX3 cuts back because it gets too much reflected power. I expect the KX3,
and in fact any other radio or amplifier is similar. 15:1 is about half the
power coming back.
Regards,
Mark
W7MLG
On Wed, Aug 7, 2019 at 5:14 PM
Rather little of this discussion makes sense to me.
Let's look at this realistically:
1. The antenna tuner in the KX2 is rated to be good up to 10:1 SWR.
Let's assume it's good to 15:1.
2. Let's assume you're using a decent cable for portable operation like
RG-8X.
3. Let's assume
Sounds like an idea worth trying — I have always wondered about the coax loss
between my KX3/KX2 and my portable antenna no matter which one it is (i.e.
AX-1, Wire and counterpoise wires, Buddipole, etc.).
But, really glad I did not sell the T1 on several occasions of thinking about
selling
I think a T1 at the base would make a noticeable difference if the coax were
more than a few feet long and the whip's resonance well removed from the target
operating frequency. Short whips can be extremely narrow-banded.
Wayne
> On Aug 7, 2019, at 7:40 AM, Don Wilhelm wrote:
>
> Bret,
>
Bret,
Yes, the T1 mounted at the antenna will reduce the potential loss in the
coax.
Will you notice the difference? Maybe or maybe not.
73,
Don W3FPR
On 8/7/2019 7:54 AM, MaverickNH wrote:
It comes to mind I have an Elecraft T1 ATU I might try attaching directly to
the base of the AX1
It comes to mind I have an Elecraft T1 ATU I might try attaching directly to
the base of the AX1 rather than relying on the KX2 ATU 25-40ft from the
antenna. I try to operate closer but sometimes have to run that RG58 to
clear obstructions. Thoughts?
Bret/N4SRN
--
Sent from:
Me, Too!
73,
Bill
K9YEQ
https://wrj-tech.com/
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of J Chester
Sent: Tuesday, August 6, 2019 1:39 AM
To: David Thompson
Cc: elecraft@mailman.qth.net; MaverickNH
Subject: Re: [Elecraft] AX1 Loaded Whip Antenna
Yes, David,
Probably early September
Joe
> On 6 Aug 2019, at 00:03, David Thompson wrote:
>
> Joe…
>
> Will you have reprints available? I would like to see a copy of the article.
>
> Thanks!
>
> David Thompson, AG7TX
> Jack of All Trades
> Master of None
> dbthomp...@me.com
>
>
>
>
>>
Joe…
Will you have reprints available? I would like to see a copy of the article.
Thanks!
David Thompson, AG7TX
Jack of All Trades
Master of None
dbthomp...@me.com
> On Aug 5, 2019, at 02:21, J Chester wrote:
>
> Bret,
>
> I’ve just submitted a review of the AX1 to Practical Wireless
Thank you Joe! I shall look forward to reading your article soon.
Bret/N4SRN
--
Sent from: http://elecraft.365791.n2.nabble.com/
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