Hi Paul,
Glad the TX Gain calibration fixed the ATU issue.
Always thankful for the 'no soldering/de-soldering
fixes required!'
73,
Mike, K8CN
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Carter
> To: Elecraft Reflector Reflector
> Subject: Re: [Elecraft] K3 KAT3 usage
> Message-ID:
>
>
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Paul,
>
> I would first check that the KAT3 is still enabled.
> Use the CONFIG me
Hi Paul,
I would first check that the KAT3 is still enabled.
Use the CONFIG menu to scroll through until
you see the KAT3 status.
I find sometimes that if my finger lingers too
long on the ATU TUNE button, it causes the
ATU to go into BYPASS mode, i.e. the ATU is
not inline. It should show BYPAS
If I remember correctly, when an ATU tune up is requested from the front panel
of a K3 equipped with a KAT3, once the tune up is completed, the final SWR is
flashed to the screen? The reason I ask is that my K3 seems to have stopped
doing this - even with a dummy load connected.
If I hold do
This thread saved me. I thought my k3 antenna tuner had malfunctioned on 6 m,
but luckily it was only because it was in Split (Data mode). The erratic
behavior of the ATU and the SWR are quite confusing though as they tell you
nothing about this cause.
-
Sverre, LA3ZA
K2 #2198, K3 #3391,
LA
Tune before you run wsjt.
The ATU I think forces the VFO into CW mode. Split in a DATA Mode is not
allowed if one VFO is not in same DATA Mode.
Sent from my iPhone
...nr4c. bill
---
It makes me think it is a firmware glitch because this only happens on 6
meters. If I create th
Tune before you run wsjt.
The ATU I think forces the VFO into CW mode. Split in a DATA Mode is not
allowed if one VFO is not in same DATA Mode.
Sent from my iPhone
...nr4c. bill
> On Sep 10, 2020, at 12:57 PM, David Needham wrote:
>
> Bill,
>
> It looks like you have uncovered the same a
Bill,
It looks like you have uncovered the same apparent firmware glitch I did. I
have verified a few friends have the same issue. It is very repeatable on
K3 and K3S's.
I was using split mode for WSJT-X and when I would press Tune while in Data
Mode A to tune my KPA-1500, I get zero power output
The K3 will allow Split in Data modes as well. But both VFOs must be in same
Mode/sub mode first. I
Sent from my iPhone
...nr4c. bill
> On Sep 7, 2020, at 9:52 AM, w4sc wrote:
>
> Bill,
>
> The K3 only allows the “split” mode for SSB and/or CW to be enabled, at
> least from panel. Tryin
The K3 will allow Split in Data modes as well. But both VFOs must be in same
Mode/sub mode first.
Sent from my iPhone
...nr4c. bill
> On Sep 7, 2020, at 9:52 AM, w4sc wrote:
>
> Bill,
>
> The K3 only allows the “split” mode for SSB and/or CW to be enabled, at
> least from panel. Trying
No, that’s not it. The right is ALREADY in split mode when i attempt to use the
auto-tune.
You get the N/A flash if VFO A and B aren’t set to the same mode, other than
SSB/CW.
WSJT-X sets it up correctly, with both VFOs in DATA mode.
> On Sep 7, 2020, at 9:50 AM, w4sc wrote:
>
> Bill,
>
The K3 allows split in data modes, but only provided both VFOs are already
in data mode. The K3 will not allow cross-mode split between Data and
CW/SSB.
If you are seeing "SPL N/A" when you try to enable split with VFO A in a
Data mode, what that tells me is that VFO B is in CW or SSB, not in Data
Bill,
The K3 only allows the “split” mode for SSB and/or CW to be enabled, at least
from panel. Trying to enable split in any other mode, the VFO B window flashes
“N/A”. You may have different indications / results if the split command is
sent via the CAT, and a mode other than CW or SSB is
transmit bandpass. There is no actual frequency change in WSJT
> including DX expedition mode.
>
> GL
>
> Mike
> K7PI
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net On
> Behalf Of Bill Coleman
> Sent: Sunday, September 6, 2020 13:08
&g
tion mode.
GL
Mike
K7PI
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Bill Coleman
Sent: Sunday, September 6, 2020 13:08
To: w4sc
Cc: Elecraft
Subject: Re: [Elecraft] [K3] KAT3 not functioning on 6m
OK, I figured this out, sort of.
Every time I’ve had trouble with the KA
OK, I figured this out, sort of.
Every time I’ve had trouble with the KAT3 not tuning, the K3 has been in split
mode.
By taking the K3 out of split mode, I’m able to turn on 6m correctly.
Oddly, though, when I return to split mode, it still works.
I’m not sure why I see this issue, but I’m gl
Bill,
I had an issue very similar. The “Automatic TXGain” procedure is performed at
52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have
trouble matching the load. Also it appears there is not enough power out in
the lower part of the band for the SWR bridge to function.
Update on this - this problem with the KAT3 ATU not working on 6m appears to be
intermittent. Sometimes it will tune, sometimes it won’t. Weird.
> On May 17, 2020, at 6:38 PM, Bill Coleman wrote:
>
> I upgraded my K3 to include the new KSYN3A back in November. (I have the
> KRX3, so I install
Bill
Upgrading to KSYN3A, you should run the High Power TXGAIN Calibration
according to the installation instructions. Actually, I had to run the
WATTMETER, and BOTH the LP (5W) and HP (50W) calibrations to “cure” the same
issue you are observing.
Installing the KSYN3A in a K3 results in l
I upgraded my K3 to include the new KSYN3A back in November. (I have the KRX3,
so I installed two of them)
Ever since then, it seems like the Antenna Tuner isn’t doing it’s thing on 6m.
It works fine on the other bands.
The K3 doesn’t really show any other problems.
Here’s the symptoms:
- ATU
Last evening, after some advice from WB9CIF, I did a little more testing
and found that the KAT3 would do nothing regardless of Antenna port or what
actual antenna was selected.
I went into Config and told the K3 there was no tuner. Cycled the rig and
then told the K3 that the tuner was installed
oo
Sent: Friday, November 8, 2019 00:02
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 KAT3
My K3 seemed to develop a problem on 20 meters this evening. Trying to work
Marquesas this evening on 20 cw the K3 would not transmit and basically no
receive. I checked every other band and all worked
My K3 seemed to develop a problem on 20 meters this evening. Trying to
work Marquesas this evening on 20 cw the K3 would not transmit and
basically no receive. I checked every other band and all worked as usual.
The moment the radio went into transmit, I received Hi SWR on the screen
with or wit
Here is the history on the 8.215 trap on the KAT3 KANT3 boards.
Overview; There is an 8.215 trap on the RF board, the trap on the
KAT/KANT3 boards was an additional trap that was later found to be way
overkill.
On the KAT3 ATU, it is on the antenna side of the tuner, so it is
subject to high SW
with 9000 or just
the early K3s below some serial number?
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Don Wilhelm
Sent: Wednesday, January 23, 2019 18:48
To: K9MA ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 KAT3 High SWR Issue Solved
@mailman.qth.net
Subject: Re: [Elecraft] K3 KAT3 High SWR Issue Solved
Scott,
It was added to the initial K3s, but later found not to be necessary, and if
the trap broke down, it would cause trouble. So the KAR3A does not have it.
73,
Don W3FPR
On 1/23/2019 10:49 AM, K9MA wrote:
> On 1/23/2019 09
Scott,
It was added to the initial K3s, but later found not to be necessary,
and if the trap broke down, it would cause trouble. So the KAR3A does
not have it.
73,
Don W3FPR
On 1/23/2019 10:49 AM, K9MA wrote:
On 1/23/2019 09:41, Ed G wrote:
A fair amount of digging in the email archives fo
On 1/23/2019 09:41, Ed G wrote:
A fair amount of digging in the email archives found a couple posts which
touched on an issue with the 8.215 MHz trap (C10 and L10) on the KAT3 tuner
board.
Although my older K3 doesn't seem to have a problem, I wonder why that
trap was not required in the KAT
I recently posted about a K3 40 meter SWR anomaly, where the K3 SWR reading on
the front panel meter tended to increase as I tuned up higher in the band. I
first observed the problem while using my Steppir yagi, which retunes itself so
that I should have seen a low SWR across the entire 40 meter
Good morning Dick, thanks for the info and I am already pushing the tune
button for the second time to fine tune things. I have also received an
email suggesting I reload the firmware again seems this ham had the same
trouble and the reload seem to fix it.
Thanks again for taking the time to get b
al Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Weir
Sent: Monday, April 09, 2012 10:51 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 KAT3 vs K2 KAT100
Good evening to all,
I have both the K3 and K2 the K3 has the KAT3 tuner and
Good evening to all,
I have both the K3 and K2 the K3 has the KAT3 tuner and the K2 has the KAT100
external and KAT2 internal tuners. My antenna is the Alpha Delta DX-EE antenna
that is mounted in my attic. Why is it the K2 antenna tuners (KAT100 and KAT2)
can get me a 1:1 SWR on 40m but the K
Randy, I found the ATU memory step spacing in the Firmware Release Notes.
In release notes for MCU 3.03 / DSP 2.10, 3-17-2009:
* MULTIPLE KAT3 ATU DATA SEGMENTS PER BAND/PER-ANT.: 10 kHz
per segment on 160 m; 20 kHz on 80-12 m; 50 kHz on 10 m; 200 kHz
on 6 m.
John, KN5L
_
> 1.2:1. So, why was the original ATU TUNE at 14.018 not good enough at
> 14.022.5?
My guess: the ATU memory transition is at 20Khz steps. I have wondered
where they were. You may be able to repeat the process if you clear out
the band's ATU memories, see the "KAT3" configuration option, the las
I am puzzled by how my KAT3 is working. (FW 4.39/2.73) Just now, I was
chasing some DX on 20m. I was listening on 14.020 with split up to
14.022.5. I called once and noticed the SWR was up around 3:1. That's
ok, but I wanted to get it down a bit, so I killed split, moved VFO A
down to a cl
Wow...This happened to me today on very similar circumstances. I was warming
up for the VHF contest and "POP". I was having problems get the 6M beam to
tune with a low SWR. Strange...it was a perfect 1:1 on the antenna
analyzer. C10 finally burned open leaving the parallel inductor to complete
The CQ 160M CW contest last weekend was the first contest for my K3 SN 4518.
First time I've heard the fans kick in, same for the Samlex PS. And I have to
say I am very pleased with the receive performance - with filter bandwidth set
to 200 HZ and fine tuning, the band didn't seem crowded at a
Wes,
It was late last night and I misinterpreted the sign - so yes, that was
what my eyes at that time did to me.
Your solution is more correct in the light of day.
73,
Don W3FPR
On 1/3/2011 9:06 PM, Wes Stewart wrote:
> Don,
>
> So you want to add +j1000 to +j1000 to get zero?
>
> Wes
>
> --
Don,
So you want to add +j1000 to +j1000 to get zero?
Wes
--- On Sun, 1/2/11, Don Wilhelm wrote:
> Wes,
>
> I don't know about the -j501, but Kirchoff tells me that a
> series Xl =
> j1000 alone will cancel the +j1000 in the shack feedpoint
> (your example)
> leaving a 50 ohms pure resis
Many thanks, gentlemen, for the many words of wisdom.
The topic, so far as I am concerned at least, is now closed!
73 Stephen G4SJP
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Wes,
I don't know about the -j501, but Kirchoff tells me that a series Xl =
j1000 alone will cancel the +j1000 in the shack feedpoint (your example)
leaving a 50 ohms pure resistive load, no need for the shunt element.
Since the absolute value of the Low Pass L-net impedance requires that
Rl
Sort of sounds logical but it's wrong.
Let the load in the shack be 50 +j1000.
A low-pass L-net with a shunt Xc = -j501 and series Xl = j1000 will do it.
Wes N7WS
--- On Sun, 1/2/11, Don Wilhelm wrote:
> As you mentioned, the matching range of the KAT3 becomes
> greater as the
> frequen
Don't you mean "to the transmission line"?
A quarter-wavelength line between the antenna and tuner makes that -j into a +j.
Wes N7WS
--- On Sun, 1/2/11, Tony Estep wrote:
>
> The antenna can be way shorter than 1/2 wave
> and still tune up
> fine. No loading scheme is needed. A short antenna
Chen
Thanks for that supporting addition, and for your work on the Smith
Chart showing the KAT3 matching range for 160 meters. It is all a
matter of the physics of the situation.
As you mentioned, the matching range of the KAT3 becomes greater as the
frequency is increased.
That fact is oft
On 1/2/2011 2:39 PM, Tony Estep wrote:
> A short antenna just presents a
> capacitive reactance (a -j value) to the tuner, which in my experience the
> KAT3 has always been able to deal with.
Well ... I think it sort of depends on the antenna and the length of the
feedline if it's surge impedanc
On Jan 2, 2011, at 5:52 PM, Kok Chen wrote:
> In the case of the K3, you may have to try everything up to about 3/4 of a
> wavelength since the green and blue parts are not symmetrical. (Yes, 3/4
> wavelength at 160m is no fun :-).
My mistake, that should be "everything up to 3/8 of a waveleng
On Jan 2, 2011, at 5:52 PM, Kok Chen wrote:
> You can see what Don means by taking a look at this figure (KAT3 at 1.8 MHz,
> with Smith Chart centered at 50+i0 ohms):
>
> http://homepage.mac.com/chen/Technical/Tuner/tuner1.8.png
I should add that, if memory serves (it has been a while ago that
On Jan 2, 2011, at 4:01 PM, Don Wilhelm wrote:
> Adding or subtracting a 1/8 wavelength of feedline
> will often bring it into range, and that is normally the easiest
> solution if the only thing you are considering is the ability of the
> tuner to produce a match.
You can see what Don means
Even if you can tune a 40m wire on 160, that doesn't mean it will work
well. In my experience, short wires for the low bands are an exercise
in futility.
Barry W2UP
--
Barry Kutner, W2UP Lakewood, CO
__
Elecraft mailing
The length of the radiator is only half the story. Unless the
feedline is matched to the impedance at the antenna feedpoint, there
will be SWR on the transmission line.
When there is SWR on the transmission line, the type of line and its
length become important when comparing whether any give
The real issue with verticals over bad "ground" of that sort is to
couple as little of it as possible. There is good evidence that DENSE
elevated radials are effective over really bad earth. Since "dense"
and "elevated" coupled together can easily be one of those
easy-to-say-and-don't-dare-do sit
It's very patchy: there are areas of huge clay deposits stretching for miles
and very deep; I've forgotten the geological term for it, but I understand
it was pushed into place by the last ice age; good for low loss low angle
radiation I understand. There are also large areas of sand stone whic
On Sun, Jan 2, 2011 at 3:18 PM, Dr. Detlef Petrausch wrote:
> I use a 40.8 m long windom and it's no problem to tune to a swr abt. 1.2
> with the KAT3 on the 160m band
Yep, similar results here. I have used 7 different ATUs and the KAT3 is the
best by far. The antenna can be way shorter than
ill easily accept his experience that
verticals don't work well there.
Willis 'Cookie' Cooke
K5EWJ
From: Jim Brown
To: elecraft@mailman.qth.net
Sent: Sun, January 2, 2011 3:42:12 PM
Subject: Re: [Elecraft] [K3] KAT3 and 160 with 40m long doub
On 1/2/2011 12:03 PM, Stephen Prior wrote:
> I don't have a good enough ground to feed the antenna as a Marconi so my
> options other than lengthening the antenna are rather limited.
Don't give up so easily. In Chicago, I used a big wrought iron fence
plus a dozen or so 30 ft long wires as count
That's not correct.
I use a 40.8 m long windom and it's no problem to tune to a swr abt. 1.2
with the KAT3 on the 160m band.
73 Detlef, DL7NDF
Am 02.01.2011 20:51, schrieb Jim Brown:
> On 1/2/2011 11:31 AM, Stephen Prior wrote:
>> In the meantime I would be pleased to hear any
>> comments.
> Th
I used a low and bent doublet of 2 x 88ft per section for a while and it
"tuned" up amazingly well on all bands 160 to 10 with the KAT3. As a rule I
like to use multi-band doublets away from any obvious in-band resonances, so
that it doesn't experience very high Z anywhere, so, adding a bit on
I guess I feel rather foolish. Why I should have expected the KAT3 to
cope I don't know, perhaps I have been swayed by the reports of others who
have claimed that the KAT3 would load anything anywhere! I shall have to
lengthen the antenna.
I don't have a good enough ground to feed the antenna as
On 1/2/2011 11:31 AM, Stephen Prior wrote:
> In the meantime I would be pleased to hear any
> comments.
The condition you describe is not at all surprising for an antenna
that's half the length it needs to be for an acceptable match.
73, Jim K9YC
will probably tune for you.
Willis 'Cookie' Cooke
K5EWJ
From: Stephen Prior
To: elecraft
Sent: Sun, January 2, 2011 1:31:06 PM
Subject: [Elecraft] [K3] KAT3 and 160 with 40m long doublet
I have only just recently added the KAT3 and I'm very im
Stephen,
What is the SWR without the tuner ?
73 Ken K5DNL
--
--- On Sun, 1/2/11, Stephen Prior wrote:
> From: Stephen Prior
> Subject: [Elecraft] [K3] KAT3 and 160 with 40m long doublet
> To: "elecraft"
> Date: S
I have only just recently added the KAT3 and I'm very impressed with it, but
given the praise heaped upon it by others I'm slightly surprised that the
best VSWR I can get on 160m is about 8:1. The antenna is approximately a
doublet which is a half wave long on 80m I say 'approximately' as it's
s
If I remember correctly, there is a procedure in the K3 manual for manually
setting the L and C values in the ATU. However, if all you're really interested
in is getting the VSWR readings, then all you need do do is turn your power way
down (2-3 W is enough), set the ATU to bypass (press and hol
I believe it goes up to 99:1 (don't ask how I know this).
I think the step you are missing is to turn off the ATU, then press tune
(hold the XMIT button) to see the mismatch. I keep the tune power set low
in case I transmit into the wrong antenna with a 99:1 match.
73,
Joe W8JH
K3 1713
--
View
I've seen 25 and 33 before and both matched when tuned :-)
73 de M0XDF, K3 #174, P3 #108
On 30 Dec 2010, at 10:54, KU4AF wrote:
>
> Dick,
>
> The K3 will display higher values of SWR if you use the TUNE mode (hold the
> XMIT/TUNE button). That will transmit a carrier and display the SWR in the
>
Dick,
The K3 will display higher values of SWR if you use the TUNE mode (hold the
XMIT/TUNE button). That will transmit a carrier and display the SWR in the
VFO A display area.
I don't know what the upper limit of this SWR display is, but I just tested
it into a deliberately mismatched load and
> Willis 'Cookie' Cooke
> K5EWJ
>
>
> From: "r...@aol.com"
> To: elecraft@mailman.qth.net
> Sent: Wed, December 29, 2010 8:01:05 PM
> Subject: [Elecraft] K3: KAT3 Antenna Tuner Question
>
> Hi Guys,
>
> I have a couple of questions about th
ember 29, 2010 8:01:05 PM
Subject: [Elecraft] K3: KAT3 Antenna Tuner Question
Hi Guys,
I have a couple of questions about the KAT3 antenna tuner I'd appreciate
your help with:
1) Where can I find detailed instructions for using the KAT3? Such as,
step by step instructions on how to use
Hi Guys,
I have a couple of questions about the KAT3 antenna tuner I'd appreciate
your help with:
1) Where can I find detailed instructions for using the KAT3? Such as,
step by step instructions on how to use the "manual" tuning option.
2) I'm tuning an Inverted L antenna and the initial
At our IOTA site we were using 450 line as tuned feeders to a pair of
orthogonal multiband doublets. We had the 450 line tied for support
in the almost constant 15 knot sea breeze. At some point something
flapped into a loop and pinched the conductors closer together on one
of the lines. It wacke
Hi Tony,
The open wire feeder was at fault as the route I had used had a bend which
made a parallel path and when I straightened this out the issue went away.
All is now as it should:-)
Thanks for the info mate.
Gary
On Mon, Dec 6, 2010 at 7:58 AM, Tony Estep wrote:
> >
> > On 12/05/2010
>
> On 12/05/2010 11:40 PM, elecraft-requ...@mailman.qth.net wrote:
> > From: Gary Gregory
> >...using a double extended zepp I find it tunes all bands except 20M
> > consistently but for a couple of weeks it has been fine.
> >
> > The KAT3 will tune to 1.1:1 BUT the swr meter fluctuates...
Gary,
On 12/05/2010 11:40 PM, elecraft-requ...@mailman.qth.net wrote:
> From: Gary Gregory
> Subject: [Elecraft] K3 KAT3 strange behaviour
> To:elecraft@mailman.qth.net
> Message-ID:
>
> Content-Type: text/plain; charset=ISO-8859-1
>
> G'Day all.
>
> Just now,
Nope, they bite everyone. Eventually.
73,
matt W6NIA
On Sun, 05 Dec 2010 15:55:43 +1000, you wrote:
>Hmmm,
>
>Well it appears the BALANCED LINE feeder had developed an impedance bump
>somehow. Rerouting the feed line appears to have corrected the issue and now
>appears that the K3 likes it aga
Hmmm,
Well it appears the BALANCED LINE feeder had developed an impedance bump
somehow. Rerouting the feed line appears to have corrected the issue and now
appears that the K3 likes it again.
Gee, sometimes these little weird things bite us. (well maybe just me...:-)
? )
Anyhoo, will see what ha
G'Day all.
Just now, using a double extended zepp I find it tunes all bands except 20M
consistently but for a couple of weeks it has been fine.
The KAT3 will tune to 1.1:1 BUT the swr meter fluctuates to 3:1 but does*not
* generate HI SWR on the display.
All other bands this behavior does not oc
I don't have resonant antennas for the WARC bands. I have a sloping V
[41m on each leg] fed with ladder line to a 4:1 balun at the bottom of
the tower and coax into the shack. Works good on 30m and 40m, not so
much on 80m [cloud warmer]. Was playing around with APF looking for
weak signals a
Actually the KAT3 manual (Rev C, June 24, 2008) introduction says, "Complete
details for using the KAT3 are included in the **K3** Owner’s manual. This
manual covers the installation of the KAT3 option in your K3 transceiver."
** Emphasis mine. You'll find everything there.
Ron AC7AC
-Orig
You can find a LOT of information about the K3 (including its options)
by reading the section of the manual which explains each menu entry. I
highly recommend each user begin there immediately after after
familiarizing himself with the front and rear panel.
Not only will it tell you how to d
Thank you so much for the replyThat's allot more Info that I had ! ! ! !
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K3-KAT3-Operation-Manual-tp5612599p5612691.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
values; C is changed with VFO A, L is changed with VFO B, and ANT
toggles between Ca and Ct .
Tapping CLR within this menu entry clears stored LC data for the present band.
> Date: Thu, 7 Oct 2010 11:56:42 -0700
> From: n3...@live.com
> To: elecraft@mailman.qth.net
> Subject: [Elecr
Hello All,
I'm having a little trouble finding the KAT3 Operation Manual ? The KAT3
100-WATT
AUTOMATIC ANTENNA TUNER INSTALLATION INSTRUCTIONS reads "The KAT3 option is
an internally-mounted 100-watt automatic antenna tuner. Complete details for
using the
KAT3 are included in the KXV3 Owner’s man
Hi Sam,
ATU tuning starts out at 5 watts. If a low SWR is located during the
coarse-tune phase, we switch to 10 watts for the fine-tune. This
improves SWR reading accuracy.
73,
Wayne
N6KR
On Oct 4, 2010, at 4:29 AM, Sam Morgan wrote:
> I see in the manual, under CONFIG TUNE
> it says:
> "No
I would think the firmware makes that
determination. It always starts out
using 5 watts and I see it jump to 10
watts just before finishing.
KenK3IU
On 10/4/2010 7:29 AM, Sam Morgan wrote:
> I see in the manual, under CONFIG TUNE
> it says:
> "Note1
I see in the manual, under CONFIG TUNE
it says:
"Note1: TUN PWR does not pertain to ATU TUNE , which always uses 5
or 10 W and is internally controlled."
what determines if 5 or 10 watts is being used?
--
GB & 73
K5OAI
Sam Morgan
__
Elec
Gary Dezern wrote:
> That worked... 3.995, tune, 3.505 and tune... and back to 3.995 with
> a short ID and I saw the ATU icon flash. Strange that I don't see it
> when changing bands, though.
You have to transmit once. Otherwise, you'd have relays clicking
constantly as you tune the band. Wor
That worked... 3.995, tune, 3.505 and tune... and back to 3.995 with a short
ID and I saw the ATU icon flash. Strange that I don't see it when changing
bands, though.
Thanks for the advice, Sam.
Take care and 73
Gary / k3wow
On Aug 29, 2010, at 8:05 PM, Sam Morgan wrote:
> when you go fr
It only flashes very briefly, you
gotta *not *blink, and it is possible
that there was no change in the ATU
settings at the new freq.
73, Ken K3IU
On 8/29/2010 7:50 PM, Gary Dezern wrote:
> I tried the same test, but TX'ing
> after each frequency or band chang
I tried the same test, but TX'ing after each frequency or band change - and
still no flashing. It appears that the tuner IS pulling in new settings (as
the SWR doesn't jump up), but again - no visual indication.
73 - gary / k3wow
On Aug 29, 2010, at 7:23 PM, Ken Wagner K3IU wrote:
> It doesn'
It doesn't flash until you actually
transmit at the new freq.
73, Ken K3IU
On 8/29/2010 7:07 PM, Gary Dezern wrote:
> Then I'll jump into the middle of the voice portion of the band where I've
> previous tuned up, but no flashing.
> Am I missing something?
>
___
The K3 owners manual contains the following text:
The ATU icon will flash briefly whenever new settings are automatically loaded.
I've never noticed this flashing and I'm curious why not. The ATU is set to
"auto", and I'll go to the bottom of the CW portion of the 20m band and tap
"atu tune" s
The past week, my K3 ATU has not tuned to a nominal 1.5 or less SWR on 40M
only. Today, I tried to clear the ATU memorized settings, but they didn't seem
to be removed. I then went into manual setting the ATU and was successful in
finding a 1:1 match. Exiting the manual mode, I was then about
Ah yes, credit must go where credit is due, as Gary Hvisdak made the initial
suggestion to check the actual L/C settings, hi hi...
I'll do a more extensive round of checks this eve. tho to make sure
Then I'll be planning a different ant. as this is just ridiculous...
73
LS
W5QD
--
View this
I think you did a great job of troubleshooting it and narrowing it down to
something outside the K3.
Rick
K6LE
On 4/12/2010, at 3:21 , lstavenhagen wrote:
>
> True, hi hi. As it is I feel dumb for even posting this without actually
> checking the actual settings first to see if they're not bei
True, hi hi. As it is I feel dumb for even posting this without actually
checking the actual settings first to see if they're not being
saved/restored properly I did this real quick on my lunch break with a
pair of settings on 20 and 40 and they do seem to be being saved so this is
probably a
Don,
I guess you missed the fact that he is working with an indoor antenna...
If he has wind and water problems he is in even bigger trouble than he thinks!
:-)
Rick
K6LE
On 4/12/2010, at 1:07 , Don Wilhelm wrote:
> LS,
>
> If the L/C settings do not change, then the antenna load is chang
If you have EZ_K3< do a plot on your antenna on one band, then try the ATU.
If you have an antenna that is fed by open wire line for example there will
be subtle changes in the antenna at different times and this will lead to
"incorrect" the settings remembered by the tuner.
I find this is repeata
LS,
If the L/C settings do not change, then the antenna load is changing.
Check for wind moving the antenna, loose coax connectors (especially if
UHF type which depend on being tight to provide a continuous path for
the shield), bad coax, a balun with water in it, broken wires that
sometimes
Hi Don,
No, I think the tuner is retaining the settings, as verified on my lunch
hour the SWR of my cheezy indoor ant was changing by itself but the L/C
settings listed for the tuner were staying the same. At least at the two
freqs. I recorded the settings for on 20 and 40.
So that's the smokin
LS,
Just as a guess at the problem - How are you powering down the K3. If
you are tuning the power supply off before the K3, then 'strange
happenings' may result. To assure a smooth shutdown with everything
remembered, turn the K3 off using the front panel power button or the
PS0; command an
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