Anyone know how to read the settings of the K3 internal ATU after a tune
cycle. I want to compare to my KAT500.
TNX 73 Fred, WY2E
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It’s described in the KAT3 menu entry on page 56 of the K3 Owner’s Manual. You
can set L, C, and Cs / Ct, and you can read the values the ATU has currently,
for example right after it has completed tuning.
73 de Dick, K6KR
On Jan 7, 2014, at 12:14 PM, WY2E w...@arrl.net wrote:
Anyone know
: The Elecraft KPA500 and KAT500 - the K-Line Dream Station)
-Original Message-
From: elecraft-boun...@mailman.qth.net [mailto:elecraft-
boun...@mailman.qth.net] On Behalf Of WY2E
Sent: Tuesday, January 07, 2014 1:14 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Internal Tuner
I'm thinking of purchasing the K3 with internal tuner and the general
coverage front end, my question is will the tuner tune on receive outside of
the ham bands. It would be nice to tune a long wire for Short Wave
listening. Thanks, Phil ZL1PB.
--
View this message in context:
On 11/13/2012 5:45 PM, Phil wrote:
I'm thinking of purchasing the K3 with internal tuner and the general
coverage front end, my question is will the tuner tune on receive outside of
the ham bands. It would be nice to tune a long wire for Short Wave
listening. Thanks, Phil ZL1PB.
You can tune the ATU manually on received signals or noise but I'm
pretty sure the settings will not be remembered if you subsequently
hit auto tune in an adjacent ham band. Actually, there are no separate
SWBC bands in the K3 scheme: these are just extended sections of the
ham bands (the 31m SWBC
You can use a manual tuner with an antenna analyser. The low
power of the analyser stays under the power limit for outside
the ham bands and lets you read SWR on the SWL frequency. I
don't know if you can manually tune the internal tuner, but if
you can, it will probably remember the solution
The manual ATU settings (called LCSEt in the KAT3 config menu) will
not be remembered if you subsequently switch the KAT3 to Auto and hit
ATU TUNE anywhere in the band. When you return to LCSEt the prevoius
manual settings will be gone.
In the case of SWL bands, since they are just extensions of
the tuner and the output filter.
Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Azlin N4ZPT
Sent: Monday, January 02, 2012 6:19 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Internal Tuner
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Azlin N4ZPT
Sent: Monday, January 02, 2012 6:19 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Internal Tuner Question
Thanks Matthew. I should not have spoken like that. Should just
have said the meter in the line would
John, I'm not being flippant. Please pick up a copy of Reflections III
by Walt Maxwell W2DU, published by CQ Comuunications. The book covers a
lot of ground and will deepen your understanding of what you are rightly
seeing.
73, de Nate N0NB
--
The optimist proclaims that we live in the best
impedance.
Regards
John G4ZTR
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Dziedziejko
Sent: 02 January 2012 04:13
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Internal Tuner Question
I installed the KAT3 over
need to be for efficient
transmission line operation at H.F.
Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Dziedziejko
Sent: 02 January 2012 04:13
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Internal
AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Dziedziejko
Sent: 02 January 2012 04:13
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Internal Tuner Question
I installed the KAT3 over the weekend
John,
No harm to leave the external meter in line, just don't use it's readings..
I have a Palstar ATU in line for when I use my amp with my multi-band
doublet. When the amp is not switched in I'll often bypass the ATU and use
the KAT3. The swr meter in the Palstar atu is still in-line however
Quite right Joe, since, as I said, the KAT3 is providing a low SWR between
the KAT3 and PA *inside* the K3.
Now for another cup of coffee...
Ron AC7AC
-Original Message-
You didn't say how much coax ran from the K3 to the Palstar. For an
accurate comparison it should be zero (use
I also have a meter between my K3 and my antenna. The AWESOME tuner in the K3
keeps the radio happy, while the external meter will show, at a glance if there
has been any significant change in the antenna itself.
Dave - K9FN
Sent from my Samsung smartphone on ATT
GW0ETF gw0...@btinternet.com
[mailto:dziedziej...@bellsouth.net]
Sent: Sunday, January 01, 2012 8:37 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Internal Tuner Question
Thanks for the responses, will take the Palstar out and hook the antenna
directly to the K3 and go by the K3's swr meter and power output
Let me see if I can correctly state, with clarity for all to understand so
this thread can die peacefully and we can move on (please?).
The K3 puts out power into an internal tuner (if installed) and then to an
SO-239 at the rear of the radio. If the tuner is in bypass, the impedance
is very
Rick,
Not quite --
Both SWR meters can be quite accurate - they are just not measuring the
same thing.
Imagine an external tuner - put an SWR meter on the input, and another
on the output -
Now make changes to the L and C in the tuner - note that the SWR meter
on the input is the only one
Not sure I understand this.
I did not think an SWR meter was supposed to work properly only when
seeing 50 ohms restive.
If the line is not flat it is terminated in to something other than the
feedline impedance, i.e. not 50 ohms restive in this discussion. I would
expect the SWR meter at
Tom,
All an antenna tuner does is show the radio the load it expects; the SWR will
still be high at the output of the tuner, and an SWR meter in the coax at that
output will show it as it actually is at that point, not as it is on the input
of the tuner/output of the radio.
Matthew Pitts
Thanks Matthew. I should not have spoken like that. Should just
have said the meter in the line would not change just because a radio
tuner transformed impedance to make the radio happy. 73, tom n4zpt
On 1/2/2012 9:11 PM, Matthew Pitts wrote:
Tom,
All an antenna tuner does is show the radio
and the output filter.
Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Azlin N4ZPT
Sent: Monday, January 02, 2012 6:19 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Internal Tuner Question
Thanks Matthew
Hi Tom,
Ok, one more swing at it.
The tuner as Don states (and we agree), is transforming the 50 Ohm
impedance of the transmitter, into something that mates better with the
impedance of the antenna for (hopefully*) better transfer of energy to/from
the antenna. There are similar circuits inside
I installed the KAT3 over the weekend and the construction and calibration
was successful. This evening I hooked everything back up to check reception,
tuning and swr. I have it set to AUTO, when I tap the ATU TUNE switch the
tuner does its thing and I read a 1.0:1 swr on the K3 meter. I have a
The SWR displayed on the K3 is after the PA, but before the ATU. The external
meter shows the SWR at the antenna, after the ATU.
Dick, K6KR
On Jan 1, 2012, at 20:12, John Dziedziejko dziedziej...@bellsouth.net wrote:
I installed the KAT3 over the weekend and the construction and calibration
Thanks for the responses, will take the Palstar out and hook the antenna
directly to the K3 and go by the K3's swr meter and power output
indications.
Best regards,
John W9QP
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Hello all,
The internal tuner on my K3 works great. It's much better than I expected.
However I've noticed something unexpected, so I'll ask the list(s).
I've cleared the tuner memories (K3_EZ) and have gone to often used
frequencies (local 75 meter nets for example) activated the tuner,
I have a 43-foot high x 130-foot long inverted-L that I use on
500-KHz with a HB base coil to ground. I tap 2-1/2 turns from the
bottom to feed with coax using ferrite chokes for common-mode
currents. Works very reliably. On 500-KHz I have winter and summer
taps as the frozen ground changes
On 9/18/2011 9:10 PM, Cady, Fred wrote:
I recently started to learn how to use W7EL's Eznec antenna modeling
program so I decided to try to model the 43' vertical. I don't quite see
the magic but a 4:1 un-un looks like it will bring the impedance into
reason for 80, 40, 14 and 18. The antenna
Just curious if anyone else is using the K3 internal tuner with a 43'
vertical. Will handle all the bands 10 - 160? Or do I need to purchase
an external tuner. I'm about to put one up to get me on the air. This
will be a temporary antenna while I build the antenna farm here at the
new qth.
Just curious if anyone else is using the K3 internal tuner with a 43'
vertical. Will handle all the bands 10 - 160? Or do I need to purchase
an external tuner. I'm about to put one up to get me on the air. This
will be a temporary antenna while I build the antenna farm here at the
new qth.
I hope you have a 4:1 Unun at the antenna. I am going to play with one
of these antennas at 31ft and 43ft for an antenna down at J6 as they are
light and easy to take and seem to work on all bands. It would make an
ok backup/secondary antenna.
On 9/18/2011 10:49 AM, Phil Debbie Salas wrote:
Phil amp; Debbie Salas wrote:
The K3 internal tuner may or may not be able to tune 160-meters - I
suspect
it will have no problem on 80 meters. It depends on the length and loss
of
your feedline. The 43-foot vertical has HORRIBLE SWR on 160- and
80-meters.
And so your line loss will
I ran my K3 with internal autotuner on the DX Engineering 43' fast-taper
vertical with their 4:1 UNUN with excellent results on 40 meters and up. I
tried a couple of local qso's on 75 and it worked ok, but I was only running
100watts on a KW band. I tried loading on 160 meters and think it did
...@mailman.qth.net] On Behalf Of K4SC
Sent: Sunday, September 18, 2011 4:51 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Internal Tuner and 43' Vertical
I ran my K3 with internal autotuner on the DX Engineering 43' fast-
taper
vertical with their 4:1 UNUN with excellent results on 40
On 9/18/2011 9:10 PM, Cady, Fred wrote:
I don't quite see the magic
Didn't you drink the kool-aid, Fred? :)
73, Jim K9YC
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