I have an AT 200 pro auto tuner for sale it's in great shape and I was
using it until I purchased an internal tuner for my K3 rig. Cost is 200.00
Canadian (185.00 U.S)
Mike Weir
VE3WDM
__
Elecraft
I have this unit for sale works great bought it brand new and is in excellent
shape.
100.00
Mike
VE3WDM
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Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
I recently bought an LDG AT600 Pro Automatic Tuner.
I seem to be able to get a low VSWR on 80 40 meters, but on 20, 15, 10
meters the best it will do is ~ 1.8:1.
My G5RV (It's really a Van Gordon 80 meter all bander fed with 450 ladder
line, 33 feet long, and then transitions to coax thru a
] on
behalf of Ron Midwin [ronmidwin...@gmail.com]
Sent: Friday, October 26, 2012 7:42 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] LDG antenna tuner with 132 foot balanced dipole similar
to a G5RV antenna
I recently bought an LDG AT600 Pro Automatic Tuner.
I seem to be able to get a low
I used a LDG tuner with a Carolina Windom. It tuned all bands 80-6 Meters
OK. Same antenna with My k1 k2 built in tuners works great 80-10 Meters.
73 George/W2BPI
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Elecraft mailing list
Home:
Why not just help the tuner out a little? Put some inductance in series with
the
center conductor and see if it likes that better. If that doesn't work put
some C
in series and adjust it. Or some C across the line. Or some L across the line.
Or some L in series and C across the line. You
Try an off-centre-fed dipole, you'll have lower swr at the antenna to start
with meaning less loss in your matching unit to get it to 50ohms. Running
modest power you can use coax and the right balun and choke at the feedpoint
if you can stand the weight up there. An inverted V configuration
Ron -
This is not an area where I have much experience, but with 450 ohm ladder
line I would have thought you would use something other than a 1:1 balun.
A few years ago I experimented briefly with an 80 meter dipole, fed with
450 ohm ladder line. I tried it with a 1:1 balun and with a 4:1
Ron ---
Does the tuner have a setting as to how low an SWR it should attempt to get?
Some say anything below 2:1 is fine. A trick I have found with some auto
tuners is to try tuning at different places in a given band. If you can get
a better match at some points, go back to where you want to
Ron,
The antenna you have is basically a good one. The problem you get
into is that it's really an 80 meter dipole being used on all bands.
This has been a popular configuration for many years. The issue is NOT
SWR. The issue is transmission line loss in a high SWR situation. To
avoid
All,
There's a trick I learned from an antenna engineer acquaintance
recently for tuning 450 ohm feedline's with a 1:1 balun with 50 ohm
coax feeding the TX.
Here it is:
1. Assemble three RG11 coax lengths. One coax 6 feet 7 inches long,
one coax 6 feet long and one coax 9 feet long. From
What is the significance of using RG11 75 ohm coax vs 50 ohm? Sorry if this is
a dumb question.
Bob AF9W
On Oct 26, 2012, at 10:39 AM, N5GE wrote:
All,
There's a trick I learned from an antenna engineer acquaintance
recently for tuning 450 ohm feedline's with a 1:1 balun with 50 ohm
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Impedance matching. See
http://www.fourier-series.com/rf-concepts/smithchart.html May be
more than you wanted to know, but is easy to follow Smith Chart
Tutorials. And does explain why you might want to do this.
On 10/26/2012 01:23 PM, Bob Stephens
All other things being equal, 75-ohm cable has less loss per foot than
50-ohm cable. This assumes that the cables being compared have the same
diameter, length, operating frequency, etc. This is the primary reason
that cable TV systems, telco inside-plant cabling, and other similar
Sorry, meant to say 75-ohm, not 70-ohm in my previous post.
- Jim, KL7CC
On 10/26/2012 10:23 AM, Bob Stephens wrote:
What is the significance of using RG11 75 ohm coax vs 50 ohm? Sorry if this
is a dumb question.
Bob AF9W
On Oct 26, 2012, at 10:39 AM, N5GE wrote:
All,
There's a
The significance of the 75 Ohm line is a matching section that
introduces a reciprocal impedance that brings the SWR to 1:1, or nearly
so. However, this approach does not address the balanced to unbalanced
issue. And, this is generally a one band match. A 1:1 choke type balun
will still be
David,
I have seen several responses that suggest changes to your antenna
setup, but not one that I can warm up to.
The choice of a 1:1 balun vs. a 4:1 balun depends on the feedpoint
impedance and has nothing to do with the fact that the characteristic
impedance of the ladder line is 450 ohms
I have ordered the internal tuner for my K3 so I don't need the LDG Tuner
anymore. Excellent condition.
Asking $159.00 includes shipping.
Please contact me off the List. dziedziej...@bellsouth.net
73's
John W9QP
__
Elecraft mailing
The more I think about the silly response that you got from LDG I
begin to realize why they don't have much regard for Elecraft as a
market for their products.
I have a K3 with an LDG Z11-Pro with the K3 configured to send 0.1
Watt to the Z11-Pro when the K3's TUNE button is held for 1/2
On 6/17/2010 8:40 PM, R. Kevin Stover wrote:
Exactly.
I'd believe $100M in the amateur (HF and VHF/UHF), commercial, maritime,
and aviation markets combined.
I'd love to know how many HF rigs they sell per year.
On 6/17/2010 4:04 PM, Brett Howard wrote:
Actually the K3 can sell a LOT
...@livecomputers.com
To: w...@w5ov.com
Cc: Edward R Cole kl...@acsalaska.net; elecraft@mailman.qth.net
Sent: Thursday, June 17, 2010 4:04 PM
Subject: Re: [Elecraft] LDG
Actually the K3 can sell a LOT less than 100Million and be on par with
the number of IKY's sold. While Elecraft is a Ham Radio
Elecraft **does** build a $699 radio. Actually, $690. Check it out,
it's pretty good.
Peter W0LLN
On Fri, Jun 18, 2010 at 1:20 PM, Jim Miller KG0KP
jimmil...@stl-online.net wrote:
... (NO, I don't think Elecraft should build a 699 radio).
Time to end this thread. Looks like its had enough ;-)
73, Eric
List Moderator
---
On 6/18/2010 12:03 PM, Peter Wollan wrote:
Elecraft **does** build a $699 radio. Actually, $690. Check it out,
it's pretty good.
Peter W0LLN
On Fri, Jun 18, 2010 at 1:20 PM, Jim Miller KG0KP
again may be the 'big 3').
73,
W5OV
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil LaMarche
Sent: Wednesday, June 16, 2010 2:20 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] LDG
This was LDG's response to my
After looking at the specs for the new LDG 600 watt tuner and their existing
KW tuner, I bought the KW model for my Ameritron ALS-600.
I need it to tune my 80 meter open-wire-fed dipole antenna on 80, 75, 60,
40, and 30 meters. I also have a hexagonal beam connected as antenna 2, but
all of a
: [Elecraft] LDG
To: 'Jack Brabham' k...@att.net,
Elecraft@mailman.qth.net
Message-ID: blu138-ds10c04f17630a71ca39e11d9c...@phx.gbl
Content-Type: text/plain; charset=us-ascii
I hesitate to add this reply: I have had the original LDG
tuner for QRP...
I forget which model. I had to replace
Jun 2010 21:32:38 -0500
From: Bill K9YEQ k9...@live.com
Subject: Re: [Elecraft] LDG
To: 'Jack Brabham' k...@att.net,
Elecraft@mailman.qth.net
Message-ID: blu138-ds10c04f17630a71ca39e11d9c...@phx.gbl
Content-Type: text/plain; charset=us-ascii
I hesitate to add this reply: I have had
: [Elecraft] LDG
To: Elecraft@mailman.qth.net
Message-ID: 013701cb0e1f$05dd5f00$11981d...@com
Content-Type: text/plain; charset=US-ASCII
For a moment, consider that what the LDG rep says may be true.
I suspect that it is, given the incredible advertising promotional budgets
that Icom and Yaesu
= microwave
--
Message: 43
Date: Thu, 17 Jun 2010 08:14:31 -0500
From: Bob Naumann w...@w5ov.com
Subject: Re: [Elecraft] LDG
To: Elecraft@mailman.qth.net
Message-ID: 013701cb0e1f$05dd5f00$11981d...@com
Content-Type: text/plain; charset=US-ASCII
, Ed - KL7uW
hint uW = microwave
--
Message: 43
Date: Thu, 17 Jun 2010 08:14:31 -0500
From: Bob Naumann w...@w5ov.com
Subject: Re: [Elecraft] LDG
To: Elecraft@mailman.qth.net
Message-ID: 013701cb0e1f$05dd5f00$11981d...@com
Content-Type: text/plain; charset
I also have one and run 1.5 kw without an issue.
Bill
K9YEQ
-Original Message-
From: Don Ehrlich [mailto:ehrl...@clallambroadband.com]
Sent: Thursday, June 17, 2010 11:53 AM
To: lrom...@ij.net; k9...@live.com
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] LDG AND MFJ998
I'll add
Exactly.
I'd believe $100M in the amateur (HF and VHF/UHF), commercial, maritime,
and aviation markets combined.
I'd love to know how many HF rigs they sell per year.
On 6/17/2010 4:04 PM, Brett Howard wrote:
Actually the K3 can sell a LOT less than 100Million and be on par with
the number of
Bob Naumann wrote:
What this tells us is that while us K3 types are devoted and loyal, we're
just a drop in the bucket of the world-wide amateur market compared to the
big two. (Kenwood doesn't count until they come out with a real radio -
then it once again may be the 'big 3').
Actually, I
I had the pleasure of helping out at the Elecraft booth at SeaPac
recently and I also took a bit of time to go and listen to how Icom's
booth was going...
The Icom booth guys seemed to be marketing guys who don't really do a
lot of ham stuff. The Elecraft booth was being assisted by customers
This was LDG's response to my email: Short sighted!
The Elecraft market is very small compared to the rest of the HF market.
Yes, it is big for the kit market, but still very little in caparison to the
entire HF radio market.
Most of the big manufacturers sell more of one radio model than all
I've an LDG that couldn't survive (twice) being connected at
the base of a full-size 160M quarter-wave insulated tower.
Don't know what failure was, as Dwayne wouldn't / couldn't
tell me.
Perhaps snow static build-up. Perhaps the -30 / 40F winter
temps. I'm cured of LDG.
73! Ken Kopp - K0PP
Foot with your feet (or wallet :-)
73 de M0XDF, K3 #174
It's not enough that we do our best; sometimes we have to do what's
required.
- Winston Churchill
On 16 Jun 2010, at 20:20, Phil LaMarche wrote:
This was LDG's response to my email: Short sighted!
The Elecraft market is very small
Definitely short-sighted. This position will change as more hams wise up
and
realize how this little upstart company makes rigs that stomp theirs flat
at a
fraction of the cost. I'm kicking myself for wasting my money thinking
that an
Icom 7700 was better than the K2, let alone the K3.
Most of the big manufacturers sell more of one radio model than
all of the Elecraft radios ever sold (combining all models).
You could not prove that from my experience. Either Elecraft
owners are more likely to buy a microHAM interface (even though
the K3 has built-in transformer isolated
When I got my K3 I had an LDG AT-200 that I had to use with my previous radio
on some bands. After comparing the K3 ATU to the AT-200 I found the K3 had a
much wider range and didn't sound like something fell down the stairs when
tuning!
I put the LDG on the block and cleared more space on my
The more I think about the silly response that you got from LDG I begin to
realize why they don't have much regard for Elecraft as a market for their
products.
When you realize that most off-shore rigs have built-in tuners that will
rarely handle more than 3:1 SWR they are a good market for
when.
73 Jack KZ5A
K3 #4165
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Prather
Sent: Wednesday, June 16, 2010 5:48 PM
To: Phil LaMarche
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] LDG
The more I think
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jack Brabham
Sent: Wednesday, June 16, 2010 8:05 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] LDG
Rick,
Not withstanding a rather poorly worded response, LDG's comment makes pretty
good sense.
The K3 doesn't support external auto-tuners, it has
Hi all,
I have had a Z-100 for a few months. The first unit I had would not tune on
less than 5 watts input. I was worried about the finals in my Ft-817. It was
replaced. The next unit that I got sat in the box for several months as I
was not using it unless camping. When I did use it for a
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