If you are working QRP, take a look at
http://www.qrpproject.de/UK/atu.htm
This describes the 'Fuchs' half wave antenna and a matching unit in kit
form. I have built this, very compact, it works well, gives a good
indication of optimum tune adjustment and is not totally dependent on a
good radial
Has anyone thought about simply asking the folks at Elecraft how it all
works? Seems to me that getting factual answers from them would be far
better than beating it to death here.
Bill W2BLC K-Line
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For Sale is a New MH2 mic, purchased when I got my K3 but never used.
I was going to use on my Kenwood but learned here I would have to modify
the mic, don't want to do that. Selling for $48 mailed.
Responses off line please.
Jack
W4GRJ
I am running a KX3 into a KXPA100.
It all plays very nicely except for one issue; on a seemingly random
basis, it seems to lose communications between them in a big way. The
KX3 has (without my doing anything) reset the PA Mode to Off, and the
PWR to 5.0. When this happens, let's say I have p
MH2 is SOLD
Jack W4GRJ
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jack
Satterfield
Sent: Friday, September 30, 2016 7:13 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] FS MH2 Mic
For Sale is a New MH2 mic, purchased when I got my K3 but
If supply power goes off even momentarily (instead of turning power off on the
KX3) that's exactly what happens. Check your supply would be my first
suggestion.
geoff - W1OH
Sent from my iPhone
Geoff Allsup, W1OH gall...@whoi.edu or w...@whoi.edu
Senior Engineer
Make sure you turn off the KX3 before you shut off power supply.
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View this message in context:
http://elecraft.365791.n2.nabble.com/KX3-KXPA100-issue-tp7622955p7622958.html
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Hello Elecrafters,
I am now downsizing my shack. The above is available for sale at USD799
including shipping by insured air parcel to major cities around the world.
I am the original owner, non -smoker. Excellent condition with manual.
If you are interested or would like to see the photo, plea
Geoff,
Thanks for the idea... That might be it; I am not in the shack when it
happens, though if that were it, I would be surprised, as I have the
internal batteries in place, and I would have thought that the power
doesn't go away if the external supply drops. Could be just enough I
guess...
Joel,
thanks for the help; typically I am not in the shack when this happens.
Software sometimes running WSJT-X, sometimes DXLab suite.
Firmware revisions: KX3 - MCU: 02.38, DSP 01.37 ... KXPA100 - 01.35
thanks & 73 de W5SV, Dave
On 9/30/16 06:55, Joel Black wrote:
Dave,
I run the same setup
Holger,
There are many answers to your questions. You will have to get more
specific about the wire lengths and the band(s) of operation for
specific answers.
If you want an easy antenna that will work for 40 thru 10 meters with no
feedline, download the KXAT1 manual from Elecraft and look
David,
The KX3 may still be running by virtue of the internal batteries if the
KXPA100 power drops, but that will not prevent the KX3 from turning off
the PA ON menu and dropping the power to 5 volts.
Check your power cable - look in the end of the APP connector. If you
see the end of 2 pie
Just received a KPA 500 and KAT 500 yesterday. Using them with my Icom
7300. I know the manual says to expect some hum from the KPA 500 but I
believe mine is more than a hum. When I send CW I don't need to monitor
the radio side tone. I just have to listen to the amp. :-) Anyone else
experienc
I have been corrected - last word of 1st paragraph should have been
'watts' instead of 'volts'.
I trust everyone knew that!
73,
Don W3FPR
David,
The KX3 may still be running by virtue of the internal batteries if the
KXPA100 power drops, but that will not prevent the KX3 from turning off
the
I have just been alerted that a loose RJ-45 plug in the KXPA100 Control
jack can cause that same problem. Make sure the plug is fully inserted
and the locking tab has clicked into place.
73,
Don W3FPR
--
David,
The KX3 may still be runn
Don,
understood; the cables and PS and its connections are fine. I expect
what is happening is I am occasionally losing line power, which shuts
down the PA without it communicating to the XK3; I think that is what is
resetting things...
Thanks for the help & 73 de W5SV, Dave
On 9/30/16 09:
Don,
understood; the cables and PS and its connections are fine. I expect
what is happening is I am occasionally losing line power, which shuts
down the PA without it communicating to the KX3; I think that is what is
resetting things...
Thanks for the help & 73 de W5SV, Dave
On 9/30/16 09:
Hi All,
Firstly, thanks for all of your help. I checked the RFCs on the SSB board
as per Steve's suggestion and they were OK, although my problem was quite
similar (see below). Also, thanks to Frank for your suggestion. As I'm in
the UK it is quite cost prohibitive to send the radio to Don. Al
And make sure the contacts on your control cable are securely crimped.
Lessons learned from experience are best remembered.
On Sep 30, 2016 8:38 AM, "Don Wilhelm" wrote:
> I have just been alerted that a loose RJ-45 plug in the KXPA100 Control
> jack can cause that same problem. Make sure the p
Maybe I'm missing something, but you have a selection of taps, the
highest is 16:1.
If the wire is exactly 1/2 wave, then the impedance is going to be very
high, and the 16:1 tap will come closest to matching a high impedance load.
If the wire is some multiple of 1/4 wave but not a an even mu
Nice work Paul.
Brian
KB1VBF
Sent from my iPad
> On Sep 30, 2016, at 10:41 AM, Radiobeamer wrote:
>
> Hi All,
>
> Firstly, thanks for all of your help. I checked the RFCs on the SSB board
> as per Steve's suggestion and they were OK, although my problem was quite
> similar (see below). Also
You may not have the transformer properly tightened down. Recheck it.
Also, 58V is not that bad, but you might want to recheck that you are using the
proper tap
from the transformer. You just might want to go up a notch to get a higher
voltage. Essentially
you want the tap that provides the high
Dave,
Not that I know what I'm doing but glad I could help. Hi
I do know that with a few exceptions both rigs use the same commands from the
utility programs. I am not a Rpi guy; I dabble in the Arduino but I'm sure the
code could be ported over rather easily. Pleas keep me and all of us appr
On Fri, 2016-09-30 at 18:12 +, P.J.Hicks wrote:
> Dave,
>
> Not that I know what I'm doing but glad I could help. Hi
>
> I do know that with a few exceptions both rigs use the same commands
> from the utility programs. I am not a Rpi guy; I dabble in the Arduino
> but I'm sure the code coul
Howdy Gang:
I offer for sale my back-up KX3...don't need two as I bought a KX2.
The KX3 is in most excellent condition...can't find a scratch, ding, dent
anywhere.
Unit has the internal auto tuner and roofing filter, plus the Gem Products
SideKx end panels/handles ($40 value).
Picture availab
Let me see if I understand the question: You're looking for a simple
algorithm to tell you how to "best" deploy a wire of indeterminate
length in a configuration yet to be specified using a transformer of
indefinite impedance ratio on any of a number of unnamed bands.
This is reminiscent of o
KPA500 blew both FETS and PA module has been shipped for repairs. I am
trying to use an Ameritron AL-80B amplifier until I get my KPA500 back. My
paddle goes to an external keyer (Navigator) which is plugged into PTT on my
K3s and the key out goes to the PTT input on the Ameritron amp. The paddle
The KX3 listed for sale below has been sold.
73, Joe W2KJ
On Sep 30, 2016, at 2:52 PM, Joe W2KJ wrote:
> Howdy Gang:
>
> I offer for sale my back-up KX3...don't need two as I bought a KX2.
>
> The KX3 is in most excellent condition...can't find a scratch, ding, dent
>
Jeff, VA2SS, wrote an article covering this:
http://www.eham.net/articles/32176
Unfortunately, I can't retrieve the picture that went with the article. Jeff
used a "serial port splitter" but I think a program like LP-Bridge that
generated virtual ports will work also. I ordered a USB keypad that
I think 42 might be a valid answer, depending on the question. Forty-one is
certainly a good answer!
There are a couple pages that try to address the question of what long wire
lengths are the easiest to tune, i.e. present a low SWR to the matching unit.
The first is at http://udel.edu/~mm/ham/ra
Looking for RS232 board for K3
73 Robert W5AJ
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I'm wondering about my K3S in Diversity RX on Digital modes, such as WSPR. I
have a G5RV and a 43ft Vertical, so was thinking I might find better overall
RX with Diversity enabled. Thoughts on this?
Bret/N4SRN
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View this message in context:
http://elecraft.365791.n2.nabble.com/WSPR-Diversity
Yes ... and forty three is held in reverence by others who attribute
magical properties to it. :-)
73,
Fred K6DGW
- Sparks NV DM09dn
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org
On 9/30/2016 1:22 PM, David Kuechenmeister wrote:
I think 42 might be a
some years ago the arrl handbook had a Series Parallel Capacitor tuner
which matches my 1/2 wave 75 meter wire,,, makes, for me, a good 1000
mile antenna and when the band is open works DX as well
used to match the antenna at the end wit coils etc but the SPC has
replaced all that
with a 50 Ft ru
Hello,
It appears that the Band Outputs are not according to the selected band
when RX ANT is active.
Anyone who can explain how this is supposed to function?
73 de
Per-Tore / LA7NO
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Per-Tore,
The band data outputs should follow the band set on VFO A. That should
not change with RX ANT in or out.
If you have VFO IND set to ON, the band outputs should still reflect the
band for VFO A.
The other thing that affects the band data output is the menu
CONFIG:KIO3 - if set to
On Fri, 2016-09-30 at 18:12 +, P.J.Hicks wrote:
> Dave,
>
> Not that I know what I'm doing but glad I could help. Hi
>
> I do know that with a few exceptions both rigs use the same commands
> from the utility programs. I am not a Rpi guy; I dabble in the Arduino
> but I'm sure the code coul
On 9/30/2016 2:24 PM, Dave Cole wrote:
> I just need to write small stack to decoded the scan codes, then feed
> that to a lookup table, then fire off the macros to see if this is
> correct... Should be a bit, as I am headed out on vacation shortly...
It depend on which Genovation unit you are
Bret,
Since the computer soundcard is working only with one channel, diversity
mode will not help - unless you can create an 'add-on' to interpret both
channels and decide which one has better reception.
When using Diversity Mode, you listen with both ears to the left and
right channels and
I installed K3 FW 5.50 to use my K-Pod, which I like very much. I have a
couple of weird problems using DXLab now that I can't explain and wonder if
the new FW might be related.
In DXLab, when I click on RTTY DX spot in SpotCollector the K3 changes the
frequency in the K3 but it's 850 Hz highe
I have these MEDION2400 mAh batteries that I am using in my KX3; I have
2 set of them so I can be charging one set while operating with the other.
My question is, using my Powerex programmable charger, what settings
should I use for current and time?
Thanks in advance & 72 de Dave, W5SV
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