Seems like a perfect box for W4TV's solutions
(may be contact him directly?)
btw: Any luck with the HW8? :-)
73'
Paul
PD0PSB
PA3CW wrote:
Hi All,
I still walk around with my idea of building a little box with 6 to 8
stereo jacks on the front and one or two outputs to key-in to
N5BCN wrote:
I recently completed the KIO2 module (without KPA100) and have been
controlling the K2 via HRD v5.0. I'm passing the K2 audio via the K2 EXT
SPKR connection to the PC Mic In and finally out to PC Speakers.
It's curious that you're getting this using both a real serial
Wouldn't a small break-out box type device with a couple of computer-style
jumpers be the easiest solution?
-
Julian, G4ILO. K2 #392 K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html
--
View this message in
Perhaps because it was many years before i got round to doing the wiring
modification, my K2 volume control remained scratchy even after I did the
modification. It's only noticeable when turning the control, though, so I
decided I would live with it rather than attempt a replacement.
-
Brian Machesney wrote:
I was just reading about the differing levels of success that people have
with active noise cancelling units. It occurred to me that one should be
able to achieve the same kinds of results using the second RX and separate
antenna in the K3 - with the addition of
Hi all,
For some reason my K3 will not switch off this morning. I hit the power off
button and it powers down and starts again immediately. Obviously it goes
off when I power the PSU down but it is somewhat annoying. I have
reinstalled the firmware in case of corruption but have not as yet done
Hi Ian,
Have a look at the KPA3 12V Sense Mod on the modification page.
It maybe the answer to your prayers.
73
Stewart G3RXQ
On Tue, 10 Nov 2009 10:49:03 +, Ian Maude wrote:
Hi all,
For some reason my K3 will not switch off this morning. I hit the power off
button and it powers down
A good thought Brian. My experience of two such noise cancelling devices is
that, depending on the type and direction of the noise, they can be very
effective in improving the signal/noise ratio although there is some
insertion loss so weak signals are sometimes lost. I always have one
I just noticed a problem with the main tuning knob on my K3 #1516 this
morning. I noticed it when I was tuning around using the finger dimple. The
odd thing is it only feels rough when you turn the knob counter-clockwise
while applying slight pressure to facilitate using the finger dimple. I
Smart thinking!
Though using two receivers for this may be quite difficult to implement.
They have to be *exactly* identical to obtain phase cancellation.
That means AGC timing, roofing filter ripple, signal path gains, everything.
I think this will be hard with the K3 and SubRX.
The outboard
Mod done, still the same! Odd that it should just appear after all this
time.
73 Ian
--
Ian J Maude, G0VGS
SysOp GB7MBC HB9DRV-9 DX Clusters
Member RSGB, GQRP 9838, FISTS 14077 | K3 #455
http://www.amateurradiotraining.org
2009/11/10 Stewart stew...@baker.nildram.co.uk
Hi Ian,
Have a
Ian,
It sounds like something is activating the Remote Power On.
Do you have anything plugged into the ACC connector? Check it to see if
pin 8 is being shorted to ground.
73,
Don W3FPR
Ian Maude wrote:
Mod done, still the same! Odd that it should just appear after all this
time.
73 Ian
G4ILO said
you need at least two extra controls, preferably three, one to vary the
phasing of the two signals and the others to adjust the amplitude of the two
inputs so that the noise levels cancel exactly.
Sounds like a description of the DX Engineering NCC-1
I thought my microKEYER was guilty of RFI but it turned out that the audio
patch cables for line in and line out had a less than 10% shield. I
temporarily solved the problem with ferrite but a more permenant solution
will be RG-58au.
Then I lost microphone audio and just got a buzz. I removed
Brian Machesney wrote:
I was just reading about the differing levels of success that people have
with active noise cancelling units. It occurred to me that one should be
able to achieve the same kinds of results using the second RX and separate
antenna in the K3 - with the addition of
No, nothing plugged in there.
73 Ian
2009/11/10 Don Wilhelm w3...@embarqmail.com
Ian,
It sounds like something is activating the Remote Power On.
Do you have anything plugged into the ACC connector? Check it to see if
pin 8 is being shorted to ground.
73,
Don W3FPR
Ian Maude wrote:
I used my K3 for the first time in a really serious contest for SS
CW. The performance was astounding. This is the first receiver I have
EVER had that would let me put a S9 +40dB signal just on the edge of
the filter and then copy signals in the filter passband clear down to
the noise floor
You need rev 3.57, presently in field test.
73,
Wayne
N6KR
http://www.elecraft.com
On Nov 10, 2009, at 7:04 AM, Randy Farmer w...@tx.rr.com wrote:
I used my K3 for the first time in a really serious contest for SS
CW. The performance was astounding. This is the first receiver I have
Yep as per my thread, I did it but still the same issue. I cannot imagine
that was the issue though on #455 after all this time.
73 Ian
2009/11/10 Greg - AB7R a...@cablespeed.com
This is the mod description from the website:
This modification adds a diode to the KPA3 12V sense circuit to
Hi Julian,
I suspect that might be the case. At first, I thought it was a problem with
the fact the soundcard is right next to the PCI card with the DB9 connector.
But after connecting the KIO2 cable to a USB/Serial adapter that isn't
anywhere near the soundcard, it suggested something
-Oorspronkelijk bericht-
Van: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Namens PA3CW
Verzonden: dinsdag 10 november 2009 8:48
Aan: elecraft@mailman.qth.net
Onderwerp: [Elecraft] [K3] Magic CW box and PIC programming
Hi Dick,
You can 'PIC' just about
On Tue, 10 Nov 2009 10:29:39 -0400, robby robertson wrote:
I thought my microKEYER was guilty of RFI but it turned out that the audio
patch cables for line in and line out had a less than 10% shield. I
temporarily solved the problem with ferrite but a more permenant solution
will be RG-58au.
When on low bands, weak signal, rf gain cranked up, narrow CW bandwidth, I get
a bit of continuous howling effect from the white noise/QRN that is about the
same audio freq as the signal I am copying.
I have .2 khz, 5 pole -.94 crystal.
I have always just ignored it, turning rf gain down
I agree Arnie, if I'm setting up stuff to operate in my own shack. However,
if I wanted to be able to use my rig with various other people's keys an
easy-to-configure interface box would be very attractive.
I would opt for a box with the connectors Dick mentions, but with a few mini
toggle
Hi Ken,
For narrow DSP filter bandwidths (100 Hz or less I think) you have the
option of using a FIR filter (default) or an IIR filter. IIR filters
can ring which sounds like it might be what you are experiencing.
That may be your problem - that you are using an IIR filter. You can
toggle
I had one of my K3's develop a similar fault. In my case it was a
failure of Q2 (FDS6375, RF board) which is the power switching FET.
elecraft spares sent me out one and I had it in a few days
An IRF7416QPBF might be a junkbox replacement if you are very
impatient!
it's pretty easy to get at
For narrow DSP filter bandwidths (100 Hz or less I think) you have the
option of using a FIR filter (default) or an IIR filter. IIR filters
can ring which sounds like it might be what you are experiencing.
The use of IIR filters is deprecated. The K3 defaults to FIR filters
and we
Randy
Experienced the same symptoms in SS CW. Random intermittent loud pops with
no NB/NR on. Never did figure it out but a bit of RF gain adjust seemed to
help. It does wake you up if you have the AF gain high.
Steve, N8BJQ
__
I'm doing a little shack cleaning and have a few items that are surplus to
my needs.
I am offering them here before I put them on that auction site.
Elecraft KRC2 Band Decoder - $140
Assembled and tested but never used
Includes uninstalled parts for the ACC option
Elecraft T1 20W
I have a brand new in the box with a serial number in the 39X range along with
the CD to part with. I'm never going to get around to using it so someone else
might wish to have it. IIRC it should be worth $295. It was not the kit
option but factory assembled. II have to many projects
Thanks for the info Jim.
I already have that document on my computer and it is impressive to say the
least and I really am going to read it someday however I don't see myself
launching into an exhaustive research project when I can make the problem go
away easily.
I have no idea what a
I don't quite understand that - is there some option which allows you
to choose?
73 de M0XDF, K3 #174
On 10 Nov 2009, at 18:24, Lyle Johnson wrote:
For narrow DSP filter bandwidths (100 Hz or less I think) you have
the
option of using a FIR filter (default) or an IIR filter. IIR filters
No PIC or microcontroller routine is going to be able to
distinguish between paddles with the left paddle connected
to the tip and those with the right paddle connected to the
tip.
I agree with Ron, build a box with two toggle switches
(or sets of jumpers) per jack:
1) a DPDT switch to
Hello David!
I don't quite understand that - is there some option which allows you
to choose?
Yes, please see page 24 of the manual Narrow DSP FIlter Types for details.
73,
Lyle KK7P
__
Elecraft mailing list
Home:
Brian Machesney wrote:
I was just reading about the differing levels of success that people have
with active noise cancelling units. It occurred to me that one should be
able to achieve the same kinds of results using the second RX and separate
antenna in the K3 - with the addition of
Elecraft, how would I go about changing a call sign into the k3 ? I have
recently downloaded the latest software (beta) dated 10/23/09 and can no
longer find config.banner in the menu's k3 427 Mark --WIVJ
Regards,
Mark W. Crossland
508 693
508 693
Elecraft, how would I go about changing a call sign into the k3 ? I have
recently downloaded the latest software (beta) dated 10/23/09 and can no
longer find config.banner in the menu's k3 427Mark --WIVJ
Use K3 Utility.
73,
Lyle KK7P
Many thanks to all the folk who kindly replied to my query about the K3
changing its split status. I believe (but am not yet sure) that the problem
may well have arisen from the use of a macro using the SWH13 command. Thanks
in particular to Joe, W4ZV for his versions of the split cleanup macros.
Hi Chris:
Now that we have the ability to do our own programming we also need some
volunteer macro beta testers.
73,
Mike K2MK
Chris M0PSK
Tue, 10 Nov 2009 12:53:02 -0800
Many thanks to all the folks who kindly replied to my query about the K3
changing its split status. I believe (but am not
On Tue, 2009-11-10 at 10:24 -0800, Lyle Johnson wrote:
The use of IIR filters is deprecated. The K3 defaults to FIR filters
and we encourage you to use them.
For some conditions the slight ringing with the IIR filters can be a
real help, a bit like the effect that you can induce on some rigs
Hi
I like to use VFO A on 40 meters with ANT 1 connected. And the second
(on the sub) VFO B on 80 meters with ANT 2.
How will a macro looks to programm a PF switch to make a quick band
change tot swap B to A with the correct antenna?
Peter
Hi all,
Progressing with fault finding the K2 and there are some immediate apparent
issues. Firstly there is a lot of loss through the low pass filters on
receive (on 30m at least) - 3dB when the actual loss should be negligible.
That's obviously one place I need to look. However (weird one
Of course it is possible to distinguish between dot left or right. My idea
is: press the P (program button) on the magic box, then sequence key the
paddle with dot button first then dah button. The pic can read the sequence
and decide which one is dot and which one is dah, in other words, shoud
Paul,
My only thought on the bandpass filter weirdness is that either the
bandpass filter is not properly terminated at the D6/D7 junction, or
that your 'scope probe is picking up something extraneous - change the
routing of the ground on the 'scope probe and see if there is any change.
Your
I have noticed with the last few Beta updates that I'm hearing distortion now
with the Auto Notch engaged. I never heard that with the earlier versions.
Is anyone else noticing this or am I hearing things besides the usual voices
in my head? If so I'm guessing a change to a more aggressive
I also hear distortion with auto notch engaged, If I use manual notch there
is no distortion.
Phil
K8MBY
- Original Message -
From: NZ0T n...@cox.net
To: elecraft@mailman.qth.net
Sent: Tuesday, November 10, 2009 7:29 PM
Subject: [Elecraft] [K3] K3 Auto Notch distortion
I
I'm seeing an intermittent problem with the A/B button on my K3. When I
have VFO A and B set for different modes and frequencies, pressing the A/B
button sometimes copies the frequency from VFO B to A after exchanging
them, rather than exchanging them only (the mode is not copied). The
problem
Well, here I go again with a probably stupid question but that is my nature.
I happened to notice that the K-3 utility has a number of features grayed
out including all of the configuration menu options. I can neither see
what's on there or make any adjustments. I have the latest firmware
I happened to notice that the K-3 utility has a number of features grayed
out including all of the configuration menu options.
Be sure you have the latest version of K3 Utility.
73,
Lyle KK7P
__
Elecraft mailing list
Home:
I happened to notice that the K-3 utility has a number of features grayed
out including all of the configuration menu options.
Be sure you have the latest version of K3 Utility.
And that the K3 is communicating with Utility...
73,
Lyle KK7P
I found that the problem was caused by PowerSDR software running for my
LP-PAN panadapter.
Steve N9SZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post:
K3 beta-test firmware revision 3.57 (with DSP rev. 2.45) is now
available.
This revision includes Synchronous AM detection, which has a clear
advantage over the regular AM detector during selective fading. In
this mode, the K3 can optionally track AM stations that may be
slightly
I'm in the midst of completing my K1. Following the DC Voltage Table I
find that (with a 12.75 battery supply) RF-U9 has p2=6.2v, p3=6.2v,
p6=6.2v, p7=12.4v. These seem in line with the lower supply. RF-Q6 has
B=0.8v, C=0.1v, E=0.1v and RF-Q7 has B=0.0, C=12.45, E=0.0.
The tables show Q6
Hi Don,
Thanks for the tip (why didn't I think of that?!?). I tied a wire between
the PC and K2 chassis and the polling noise dropped dramatically. Although
it is still audible, it is diminished to the point where I can live with
it. Hopefully the wire wouldn't introduce any ground
John,
Even a software guy may be able to read a schematic - at least to the
extent that it shows 'which is connected to what'.
Do check the schematic and you should see that the only thing between
RFC5 and the collector of Q6 is T3. Check that toroid carefully for
poorly tinned and soldered
When the K3 Utility establishes communications with the K3 the buttons are
enabled.
Dick, K6KR
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bruce McLaughlin
Sent: Tuesday, November 10, 2009 5:19 PM
To:
Brian,
The wire actually diminished ground loops.
A ground loop forms between two chassis at different potentials, and
that potential difference causes current to flow on conductors that
normally carry signals. There may still be a slight potential
difference between the two chassis - it
I have the following K3 accessories for sale:
(4) KFL3A-6K 6 kHz AM / ESSB, 8-pole filters
(4) KBPF3 General Coverage RX Bandpass Modules
(2) KRC2 Band Decoders (compatible w/ various rigs)
(1) DX Doubler SO2R Controller w/ K3 cables
KFL3A-6K filters and KBPF3 bandpass modules were installed in
I tried this out tonight; WWV on 10 and 5 MHz; found that at this time,
Synchronous USB was better than LSB, and using CWT to auto-track showed
as much as 7 Hz offset in tracking. It was very interesting and I look
forward to using it more for SWL in tough conditions. Thanks!
73 de Dave,
I have been using the Sync tonight on several AM SW stations. I have had
very good results so far. Depending on the QRM the USB LSB do make a
great difference. I have been waiting for this feature!
Thanks,
Rick -- KJ5QY
wayne burdick wrote:
K3 beta-test firmware revision 3.57 (with
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