Dave,
I always use TL Details whicj can be downloaded here at wbsite of AC6LA
: http://www.ac6la.com/tldetails.html
It is easy to use.
Choose the cable that you are using, set the frequency, set the line
length and set an estiimate of the impedance at the load.
If you donot know that and your s
Hi Kx3 users,
Other posts have previously dealt with the issue that the standard KXUSB
cable for Kx3 does not support CW keying from the computer to the Kx3
radio, simply from the fact that as opposed to the ordinary serial
connection (old RS-232 standard), the RTS and CTS pins are not availabl
Hi Rich,
This DXE balun is just a hefty 1:1 choke balun It's a high grade
coax (50ohm) wrapped through ferrite cores. The balanced terminals
are floating and the unbalanced end is connected to the aluminium
housing and the shield of the 6 foot length of RG213 coax which
connect
John,
It is unfortunate that we can't see a schematic of how the balun is wired.
I have thought of doing that same thing to be able to use an ATU.
Presently, I have an 80 meter loop fed with homebrew 450 ohm ladder line to
a tuner with a 1:1 balun within. It works beautifully on all bands. I w
Yes I do but it would be inappropriate for me to share them at this
point. We'll have to leave the privilege of unveiling the details of
this little jewel to the developers.Stan WB2LQF
On Thu, Sep 20, 2012 at 10:30 PM, Thomas Campie wrote:
> Any close up pictures of the new key?
>
> 73, W
John,
I'm not surprised at your findings in light of my experience. Regarding the
ATUs being able to tune in this case, I'm not surprised. Elecraft tuners will
match nearly a complete open and short...been there, done that. I really
wish they were limited to something like 6:1 to prevent
Hi Guys,
My KX3 has just developed an apparent fault - the audio level changes
abruptly every few seconds from a comfortable listening level to quiet,
but still audible.
I am using my Proset headphones.
Any thoughts on where I should start looking? I am nervous about poking
around surface mou
Any close up pictures of the new key?
73, W0EA
TJ
QRP ARCI #14612 | CW Ops #953 | SKCC #4593T
NAQCC #3768 | Flying Pigs QRP #2254
Elecraft KX3 SN 288
Because QRO is too easy
On Sep 20, 2012, at 9:25 PM, Charles Cupp wrote:
>
>
> Great Job Stan!!! U guys musts had a ball!!! Charly W6CUP
>
Our three KX3s performed flawlessly through eight hours of solid
pounding. We made 148 contacts and probably influenced the purchase of
at least a couple of KX3s in the process. The three KX3s were operating
within a few of feet of each other but we experienced no interference
issues we could
Hi,
That's not true. The L network's only solution is the lowest Q possible,
meaning it will have the lowest tuner loss possible and the widest
bandwidth. And if the capacitor and inductor steps are made small enough, a
1.0:1 solution is always possible. The fact that many tuners give up once
the
Seems to me Elecraft already has a great linear DC supply: It's built into the
KPA500. Repackage it as a stand-alone, done.
73,
Mike, KW1ND
Knoxville, TN
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Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
He
Time to finish kindergarten activities.
ATU in my KX3 has trouble tuning. I matched few bands and was loosing lock
during a QSO. Small changes in antenna length caused it to have large
changes in matching. I became very critical of ATU it especially that it all
took place during my trip to a few c
This is most likely a firmware bug, and now on my list (thanks).
However, the difference between 1:1 and 1.3:1 is completely irrelevant
on air. So the workaround for now is: relax, and keep bugging me to
fix it one in awhile :)
73,
Wayne
N6KR
On Sep 19, 2012, at 7:44 PM, Surfshot wrote:
Indeed, the sole reason that I do not use my screwdriver vertical, it would
wake the dead.
David
G3UNA
> Hi Wayne,
>
> An important consideration IMHO when designing a remote AMU (ATU), is the
> noise that it makes when tuning. Neighbours, for some strange reason,
> don't
> like to be awakend
Main tuning knob and VFO B machined weighted knobs for the K3. Black, in as
new condition.
http://www.73cnc.com/product_p/k3comboblk.htm
$119 or best offer, shipped in the US. Please contact me off the list if
you're interested.
73, Lou, W0FK
-
St. Louis, MO
K3 #2513, P3 #620, KX3 #0036
Hi Wayne,
An important consideration IMHO when designing a remote AMU (ATU), is the
noise that it makes when tuning. Neighbours, for some strange reason, don't
like to be awakend by the sound of relays nor tuning motors when they are
sleeping :-)
73,
Geoff
LX2AO
On September 20, 2012 at 8:
What Don says is true as far as it goes. The L-network tuner has only one
solution, but it isn't necessarily a good one.
Way back in 1998 when correspondence was via typewriter and snail mail, I went
around with Dean Straw, N6BV, then Editor of the ARRL Antenna Book, about tuner
losses. This
Hi Jim & group
I did an experiment today and tied the balun case/coax shield to station ground
via the stud.
I found 2 things:
# 1 the manual tuner settings required for 1:1 match changed on all bands, but
the KAT3 and manual tuner were still able to find a 1:1.0 match on all bands
80m - 10
Hi,
I am one of those customers interested in outdoors, remote location of the
KAT500. I have a suspicion that I may be too late in the ordering queue (a
day and a half or so after orders opened) that I may not be able do much
experimentation before winter weather sets in, but one can always hope.
David,
It's worth trying to figure out TLW.
Steps are basically this for coax loss:
1) Select coax type
2) Input length
3) Input frequency.
The fun begins when one looks at the loss of the coax for various loads.
Input 50 ohms first. That will give you the coax loss when matched.
Then input oth
David,
Those who have mentioned "tuner loss" may or may not be correct - it all
depends on the tuner. If the tuner is of the "T match" variety, it will
have multiple points where it can show a match, but many of those
"matched" points will result in high circulating currents in the tuner
and
This web page may be of help to understand TLW:
http://www.antennex.com/shack/Dec04/tlnw.htm
73 de Dick, K6KR
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Bunte
Sent: Thursday, September 20, 2012 12:59 PM
To: Wayne
Jim.
I would strongly suggest that is an indication of a problem in your
antenna system somewhere (my first guess would be between the
transmitter and the balun). I would start by substituting the coax to
the balun.
73,
Don W3FPR
On 9/20/2012 3:53 PM, Jim Harris wrote:
> John,
> I found that
On 9/20/2012 12:53 PM, Jim Harris wrote:
> I found that by connecting the balun ground to my station ground I had >25
> SWR on all bands. I just let it float..no problems so far.
That suggests something wrong with your antenna system.
73, Jim K9YC
___
I have been trying to decide between the KAT500... and a remote tuner at
the base of my 30' vertical. I have measured the SWR on each band, at the
shack end of my 125' of LMR600. If I take that length, frequency and SWR
information and plug it into the chart for SWR loss of LMR600, I can see
what
John,
I found that by connecting the balun ground to my station ground I had >25 SWR
on all bands. I just let it float..no problems so far.
73
Jim, W0EM
< Should I connect the balun, via the case stud, directly to station
ground??>>>
John
VK7JB
Thanks Wayne! I look forward to seeing what comes out of it.
73 de KK7EL Bruce
On 09/20/2012 12:12, wayne burdick [via Elecraft] wrote:
> It may be possible to remote the KAT500 with additional control
> firmware and an appropriate weather-proof enclosure. We haven't done
> any testing of this i
It may be possible to remote the KAT500 with additional control
firmware and an appropriate weather-proof enclosure. We haven't done
any testing of this idea yet, but once we start shipping KAT500s,
we'll work with a few customers who want to experiment with this to
see what we can do to fa
I will note that at least one thing stated below is no longer the case-
the size.
And the different form factor may make a remote model more difficult.
But I'm hoping that will not be a problem.
73, doug
>>In case anyone was wondering: We are definitely planning to ship a
>> new
>>high-power
Gil,
When you say you completed your KAT2 build, did you complete all of the
final calibration steps, specifically the bridge null adjustment (p. 16 of
the KAT2 manual) and the power calibration adjustment (p. 17)? I would be
surprised if you could make those adjustments successfully and yet have
“...I use an LDG tuner at a remote location from my rig. I see something
similar to what is being discussed at times. Sometimes it will stop tuning
(perhaps quickly) when it gets a match slightly below 2:1. Other times I get a
much better match...”
Don’t forget that unless your transmission sys
Guy, it was announced June 16, 2010 by Wayne, see link below:
http://elecraft.365791.n2.nabble.com/Elecraft-KAT500-was-quot-Auto-Tuner-quot-td5188575.html
I sure hope they do it and soon.
-
73 de KK7EL Bruce
--
View this message in context:
http://elecraft.365791.n2.nabble.com/KAT500-Rem
Did they actually say they were going to do a remote version? That's
not trivial like put it in a sealed box and you're done. People have
asked about it, but I don't recall them saying it was on the list.
73, Guy.
On Thu, Sep 20, 2012 at 12:21 PM, Bruce Hammond wrote:
> I see the KAT500 (indoor
The stud and the coax shield are connected together. So grounding the stud
outside is just
another ground path for the station ground.
The warning about the "antenna ground" means that two halves of an antenna
should be
connected to the two insulated connectors and not to the station ground. I
I have experienced exactly what Mike has described below. I found that auto
tuners in my old Kenwood TS850-S/AT, my LDG, my K3 and others seem to get to a
"reasonable" match then stop. In most every case a second press of the tuner
button would, in just a few milliseconds, give a totally flat
I searched the archives and could not find reference to the following issue
I've observed on my KX3:
I don't normally use the text decode feature but was playing with it today and
noticed that rotating the OFS/VFO B knob after setting TEXT DECODE resulted in
strong muting of the receiver. The m
I see the KAT500 (indoor) version is set to ship Oct 1-15 timeframe. Tech
info and shipping target date for remote version of KAT500 would be
appreciated.
-
73 de KK7EL Bruce
--
View this message in context:
http://elecraft.365791.n2.nabble.com/KAT500-Remote-Version-tp7563017.html
Sent from
Hello Tim,
I am not sure the answer but I am sure you will lose the manual notch within
AGC loop in the IC7600.
If there is a strong carrier right next to your weak SSB signal, a manual notch
within AGC will notch out the carrier and bring up the weak SSB signal. In
other words, the de-sens
John,
I would interpret "antenna ground" to be something in the antenna
system, such as a radial system.
Yes, connect the grounding stud to your ground rod outside the house.
73,
Don W3FPR
On 9/20/2012 9:47 AM, zen...@netspace.net.au wrote:
> On the balun case, there is a stud and wingnut to al
Hi. I've recently acquired a KX3 and have noticed that in my very noisy
location the KX3 has the ability to hear signals that the IC7600 just can't,
specifically on 80M where plasma TV interference rules supreme.
I'm not using the noise blanker on either rig by the way.
My question is would I s
Hello Group,
Apologies if this is too far off topic, but I have a question about
ground connection on a DX Engineering balun.
I have an 80m horizontal loop, fed with 300 ohm ladder line. I use
this multiband. The ladderline ends just outside the shack at a DX
Engineering 1:1 current
For those hams that are also sailors, there is a new software for Android,
phones, tablets, from Wolphi.com., called Droid Navtex. Wolfgang, W8DA has
previously published Droid PSK, Droid RTTY, Morse Decoder, Morse trainer, etc
and now added the Navtex software. I have no financial interest in
Any update on the S/W upgrade?
I am about to need this functionality again.
72
Dom
M1KTA
--
View this message in context:
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Sent from the Elecraft mailing list archive at Nabble.com.
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