i also have Problems to load firmware
I think after build in 2. receiver
I have to load firmware several times
with loud whistling K3 after reload and switch on
and error 'E000202' on the
Main display and 'ERR DSE' on the VFO B display.
after loading several times I got 2.34
did nothing change
In my shack:
On my left hand: iambic B ,if possible with auto character space
(depending on keyer used K3, K2, deluxe keyer late 70's, super-keyer
late 90's, Winkey)
On my right side: vibroplex bug (only one).
In the middle a keyboard connected to N1MM and winkey for contesting
(but that does not
Hi all,
As far as I know the NB (both hardware and DSP) and NR functions (and
probably a few others) are not yet implemented/enabled for the KRX3 in the
latest (beta) F/W. K3support told me a few weeks ago that it is in the
works. Anyone having a clue when it is coming ??
-- Enno, PF5X
K3 #1263
Been trying out a pc type headset with boom mike and a
3.5mm stereo plug on the mike lead. Having what I like
to think of as a logical mind(?), I made up a 3.5mm
stereo to mono adapter to plug into the socket on the
rear of the K3 which is labeled 'mono'. This 'sort of'
worked but kept losing the
The K3 will handle the open-frame relays in SB-220-type amps but open-frame
relays will not close reliably within 20ms.
Some contest logging programs (CTWin for example) enable up to 250ms delay
which is fine for most old amps, but don't attempt to use your paddle via the
K3 internal keyer.
A
hello,
I will starting with 6m EME, whats better for EME?
The XV50 transverter with a typically noise figure from 0.8 db or the
normale K-3 on 6m ( noise ?? )
Wim PA2AM
K-3 576
K-2 4769
K-2 4008
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Hi Wim,
There will be a dedicated 6m pre-amp soon available for the K3 (to be
connected between the 'Ant in' and 'Ant out' connectors of the KXV3 option).
I am not sure what the NF will be, but I think they are aiming for a value
around 1 dB or better.
I have the prototype of this pre-amp and
Normally a computer mic. has a condenser element and requires DC bias via
the mic. jack. Don't use a mono adapter. Set your menu for rPH bias. The
'mono' label is tricky. I think it means that the mic. audio is mono but not
the jack.
Steve Ellington
[EMAIL PROTECTED]
- Original Message
The jack is a mono jack on the K2 proset from Elecraft, yet it
requires bias (rP.L bias).
I believe the socket is a mono socket also.
73 de M0XDF, K3 #174
I am told I talk in shorthand and then smudge it. - J.R.R. Tolkien
(1892 - 1973)
On 1 Sep 2008, at 12:34, n4lq wrote:
Normally a
Good morning,
Need a little help setting up the NR. When I use it cuts out the white
noise but the voice is muffled. Sounds like it is being over driven and
kinda fades in and out.Signal sounds better with it off. Tried all the
setting (F1 thru F4).
Don...w2xb
--
View this message in context:
Don
Check your RX EQ and make sure it's not got some gain cranked on any freq.
band. NR can really make SSB sound bad if you've peaked up the EQ for CW
like I do.
Steve Ellington
[EMAIL PROTECTED]
- Original Message -
From: W2XB [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent:
Hi Everyone,
I'm re doing the thread as this time I have some concrete findings to
share with you and wail be writing to Elecraft about this problem.
My previous thread was about ringing in the audio but now it is
harmonic distortion at three times the frequency.
I went around M0GJH's
The 'mono' label is tricky. I think it means that the mic. audio is mono
but not the jack.
Correct. The jack is physically a stereo jack, but the audio path is
MONO (tip) only.
73,
Lyle KK7P
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is this just because it's easier to stock just stereo sockets?
The mic plug on my Heil K2 proset is mono. And it work just fine.
73 de M0XDF, K3 #174
--
Our society must make it right and possible for old people not to fear
the young or be deserted by them, for the test of a civilization is
W2XB wrote:
Good morning,
Need a little help setting up the NR. When I use it cuts out the white
noise but the voice is muffled. Sounds like it is being over driven and
kinda fades in and out.Signal sounds better with it off. Tried all the
setting (F1 thru F4).
Don...w2xb
Problem
The mic plug on my Heil K2 proset is mono. And it work just fine.
My cheap radio shack computer headset works just fine, too.
The ring terminal on the jack is not connected, so you can safely use
a MONO (i.e., single channel) or a STEREO (dual channel) connector, as
long as it is the correct
David,
No, I believe it is because most of the computer mics use a stereo
plug. A mono jack would short out the ring and cause some mics to not
work properly.
Using a stereo jack for mono signals is usually a good idea,
particularly if one does not know what can be placed on the ring
Thanks, that makes sense to me - that's for the explanation.
I have a mono headset with mic, intended for an IP phone and that uses
a stereo plug, although I hadn't noticed. It's a nice lightweight
headset too, shame its only a mono earpiece.
73 de M0XDF, K3 #174
--
When you want to test the
I will also try two simultaneous signals and see if I can duplicate your
mixing observations.
Jack K8ZOA
Berni G0IDA wrote:
Hi Everyone,
I'm re doing the thread as this time I have some concrete findings to
share with you and wail be writing to Elecraft about this problem.
My previous
Hello,
yesterday I installed the KRX3 into my K3 s/n 0192.
All went well and after the installation the main rx and the tx seem to work
fine.
However, I just tried calibrating my KRX3's synthesizer.
Initially this goes as expected but suddenly the values on the VFO display
add up very quickly
Wim,
If 1 dB noise figure is the aim, I would make one myself (sure better NF,
most probably cheaper).
73', Evert PA2KW
Active on 144
Preamp NF 0.15 dB (MGF1302 - YU1AW design)
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Enno, PF5X
Sent: Monday,
Maybe this has been discussed before...
Using the manual notch to dip a unwanted signal works great.
I would expect that the AGC would react to this notching by increasing
the gain of the rx again. It seems that this is not so.
Is the notchfilter just an AF notch filter and not a IF notch (DSP IF
Wim van der Zwan PA2AM wrote:
hello,
I will starting with 6m EME, whats better for EME?
The XV50 transverter with a typically noise figure from 0.8 db or the
normale K-3 on 6m ( noise ?? )
Wim PA2AM
K-3 576
K-2 4769
K-2 4008
___
Using the manual notch to dip a unwanted signal works great.
I would expect that the AGC would react to this notching by increasing
the gain of the rx again. It seems that this is not so.
At present, the NOTCH filter, whether automatic or manual, is after the
AGC loop.
73,
Lyle KK7P
On Mon, 01 Sep 2008 14:30:45 +0100, Berni G0IDA wrote:
I hope there is a cure for this as it's frustrating listening to CW with
this sort of distortion.
There are three things you should do.
1) Make sure that the AGC is on, and that the CONFIG AGC settings are at the
defaults.
2) Reduce
Jim
None of those things helps. I can reduce my LINE OUT gain to 1 and still see
the 3rd harmonic easily on the waterfall. I've had many rigs and this is the
first to do this.
There was a thread about this not long ago. Do a nabble search on ghost.
There is also some distortion in the speaker
Jim is entirely correct although we will disagree a bit about
the need to keep the line out as low as he suggests. My own
measurements say the harmonic distortion is insignificant as
long as the Line Out levels stay below .5V RMS.
The headphone outputs are exceptionally clean as long as
None of those things helps. I can reduce my LINE OUT gain to
1 and still see the 3rd harmonic easily on the waterfall. I've
had many rigs and this is the first to do this.
Turn on the ACG and make sure the audio level from your Line
Out does not exceed .7V RMS. As long as the AGC is on, I
Thanks Lyle,
That's the thing I was describing indeed.
Any plans of moving the notch upstream as if it were notching in IF
(like in a analog rx) ?
Arie PA3A
At present, the NOTCH filter, whether automatic or manual, is after the
AGC loop.
73,
Lyle KK7P
To further on my previous mail, I have a couple of additional observations
to report:
1) Tom, K1TL suggested I check K3SYN PLL voltages. Both synthesizers report
2,7V.
2) Just reloaded the latest beta FW. I made sure to load DSP data tables as
well. All went fine but when I attempted the
These are all implemented for the sub. However at present they're also
linked to main, so you can't set sub independently. I'll be breaking
these out one at a time (with careful re-testing).
73,
Wayne
N6KR
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
As far as I know the NB (both hardware
On Mon, 1 Sep 2008 12:38:31 -0400, Joe Subich, W4TV wrote:
Jim is entirely correct although we will disagree a bit about
the need to keep the line out as low as he suggests. My own
measurements say the harmonic distortion is insignificant as
long as the Line Out levels stay below .5V RMS.
Was experimenting late at night with multiple antenna switches, switching
an amplifier in and out of line, etc, when I inadvertently transmitted CW @
100W through a combination of switches that resulted in no antenna at all
being connected.
Urghh. After two or three seconds of transmitting CW,
Hello Bob!
I'm sure Elecraft will have a Noise Gate built into a K3's firmware some day,
but a noise gate is a valuable tool
An experimental Downward Expander will be available in the K3 firmware
in the near future. It has been undergoing some limited testing already :-)
73,
Lyle KK7P
Hello Arie!
Any plans of moving the notch upstream as if it were notching in IF
(like in a analog rx) ?
Key phrase is at present :-)
73,
Lyle KK7P
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I give up. What is a downward expander? It that the same as a
compressor? Or is it something that has a crossover point that has
one action on one side of the crossover, and the opposite action on
the other side? All these newfangled terms are simply amazing to us
OFs.
- Jim,
I'm sure Elecraft will have a Noise Gate built into a K3's firmware
some day, but a noise gate is a valuable tool
An experimental Downward Expander will be available in the K3 firmware
in the near future. It has been undergoing some limited testing already
:-)
Further to this, I find using
google is a wonderful tool...
http://www.doctorproaudio.com/doctor/temas/dynamics-processors-noisegates_en.shtml
Downward expander. This type of unit works like the opposite of a
compressor, and provides a ratio control or attenuation slope. That
way the signal is attenuated more highly the
OK, I understand now. The Gates company (of long ago broadcast
equipment fame) made a device they called the Level Devil - which
worked this way. I had one, and it worked wonders in improving false
vox trips. The Level Devil served as a downward expander for signals
less than the crossover
Hi Wayne,
Tnx for the response. Can you indicate from which F/W version onwards this
is working as you describe (could not find it in the F/W release notes) ? I
am using the as-shipped versions uC 2.15 / DSP1 1.84 / DSP2 1.82 awaiting
the next major stable release. My F/W version is definitely
Kevin Rock wrote:
During the twenty meter net there was some
sort of contest going on but I never found which one. I looked at
the contest calendar: www.hornucopia.com/contestcal/weeklycont.php
but it was not listed. Luckily the QRM was not too bad.
FWIW, couldn't find the 20m net
Thanks everyone for the replies.
I just would like to put this thread back onto its tracks. The
problem is with CW (although SSB does suffer too) and the main problem
is that I can hear the 3rd harmonic which when mixed with the
fundamental makes a rough note on CW especially when tuning
It's a feature of the K3. If you don't respond to the other prompts,
it sends you smoke signals.
All together nowG R O A N
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I've made a number of measurements on the K3's audio output a few days
ago in CW mode and again today, this time with two close spaced signals
inside the SSB filter as well as a single tone.
Yes, there are 3rd and other odd-order harmonics and, to a lesser
degree, even order harmonics.
I just installed my new KRX3 and I do not have any audio. There is no
hissing sound as there is when I use the main receiver. In the Config menu
I have set ANT=BNC as I installed the TMP cable with the BNC connector to
allow me to do diversity work later. In BSET I have the ANT set to MAIN.
Jim, see also the paragraph about Noise Gating at the end of the page :
http://www.dxatlas.com/VShaper/
73 to all
Geoff
G3UCK
- Original Message -
From: Jim Wiley [EMAIL PROTECTED]
To: Lyle Johnson [EMAIL PROTECTED]
Cc: 'Elecraft Group' elecraft@mailman.qth.net
Sent: Monday,
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Nelson
Wittstock
I just installed my new KRX3 and I do not have any audio.
There is no hissing sound as there is when I use the main
receiver. In the Config menu I have set ANT=BNC as I
That did it. I figured it was a cockpit error. Thanks a bunch.
Nelson
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Hi Stewart,
I have a K3/100 + KRX3/KXV3/KAT3.
In RX/stby it runs 1.01 A @ 14V according to the K3 display. I agree that
the temperature is quite high. With about 26.7 degC in the shack I read FP
41 degC and PA 36 degC after 1 hr stby. I guess the two DSPs are generating
quite some heat + the FP
Hank
The K3 Key out may be rated for 200 volts but if you use it with an unmodified
SB220 you are taking a real chance of damaging the K3 because there is no
protection diode in the SB220 and the field collapse voltage can exceed 1000
volts.
the SB220 was originally designed for relay
...14 W in standby with AF volume at normal
level, with all my options, seems a bit low. I would rather expect something
in the range of 50 to 100W.
The heritage of the K3 is portable operation, so we worked pretty hard
at keeping the current drain low without sacrificing performance.
Maybe
You can get DB15HD breakout connector with captive wire screws at:
http://www.winfordeng.com/products/brk15hd.php
Read the comments I made on it on this reflector a couple months ago.
Jerry W4UK
At 04:37 PM 8/29/2008, K8TB wrote:
...
Now, to convince L-Com to make a breakout HD-15 connector
Lyle Johnson wrote:
div class=moz-text-flowed style=font-family: -moz-fixed The
'mono' label is tricky. I think it means that the mic. audio is mono
but not the jack.
Correct. The jack is physically a stereo jack, but the audio path is
MONO (tip) only.
The de facto standard for PC sound
Berni G0IDA wrote:
I just would like to put this thread back onto its tracks. The
problem is with CW (although SSB does suffer too) and the main problem
is that I can hear the 3rd harmonic which when mixed with the
fundamental makes a rough note on CW especially when tuning away going
up
I think it was me who used the term ghost signals when referring to the
harmonically related CW traces I could see on the CW Skimmer display. I
probably would have been completely unaware of it if I had never tried this
program. It was only obvious as I was listening to CW with a narrow filter
I soldered up the soft key mod today, it's inexpensive
and simple to install.
http://www.harbachelectronics.com/_mgxftp/pdffiles/SK220PICTORIAL.PDF
[Elecraft] K3 Key Out
David Robertson darjar at comcast.net
Mon Sep 1 17:40:33 EDT 2008
The K3 Key out may be rated for 200 volts but if you
use
The MOSFET used in the K3 is internally diode protected.
73,
Tom N0SS
At 16:40 09/01/2008, David Robertson wrote:
Hank
The K3 Key out may be rated for 200 volts but if you use it with an
unmodified SB220 you are taking a real chance of damaging the K3
because there is no protection diode
None of those things helps. I can reduce my LINE OUT gain to 1 and still
see
the 3rd harmonic easily on the waterfall. I've had many rigs and this is
the
first to do this.
My 3rd order distortion traces on DM780 disappear if I keep my line out gain
at 3 or less.
My AGC is not quite default
Jim,
Insignificant depends on the decoder, what you are decoding (PSK
or RTTY), band conditions, and the operator. If a PSK operator is
using the IF with a broadband setting and tries to work a signal
that's really a harmonic, it won't work -- he'll be transmitting
on a frequency
W4TV:
I envy the K3 you have as there is 3rd product distortion
and never had this on any other rig... could there be a bad
batch or K3s? Just like to re-iterate that the thread is not
about how to set up your PC/LINE OUT or IN not to get distortion,
it is about 3rd harmonic
I've found that the LIN OUT port has typical third harmonic levels
around -45 dB from the fundamental, with the LIN OUT level set at 10,
the factory default. The headphone port, under the same conditions, will
show the third harmonic down about 70 dB or so at levels appropriate for
my Sony
The Keying Transistor used in the Harbach Soft Key uses an IRF610 HEXFET
Power MOSFET, rated for 200V with an ON Resistance of 1.5 Ohm in a TO-220
Package.
The Elecraft K3 uses an IRF1630 HEXFET Power MOSFET, rated for 200V with an
ON Resistance of .4 Ohm in a TO-220 Package.
Don't see much of a
Yes indeed it would be a sorry situation if an operator can't tell the
difference between a desired signal and an audio harmonic, fortunately
my thread is not about that.
Anyway, the noise/distortion is still there coming out of the
headphone socket.
Berni
Joe Subich, W4TV wrote:
Jim,
Hi All,
I received my kit on Friday August 29 and spent this weekend putting it
together (K3/100, KAT3, KBPF3, KFL3A-6k, KFL3A-2.8K, KFL3B-FM, KRX3,
KTCX03-1 and KXV3. Yes, I had to hold off for one week as I could not
block the time to do it. All seemed to go well, everything checked out
You should read through your manuals and the errata.
Method 3 is not yet supported. However contrary to the beliefs of some
you ARE getting added accuracy from your KTCXO3 it is a 1PPM reference
rather than 5PPM. With firmware correction (to be added later) it
should be able to reach 0.5PPM but
Thanks to all who have responded in regard to the features which are not
yet enabled... I am sorry for being slow on the draw, I use to keep up
on all the news and firmware stuff, but been too busy lately.
HOWEVER, Still having the issue with the amp. YES, I have enabled it in
the menu
Have you adjusted the MON level up? Hold MON and then adjust it to
where you can hear it.
On Mon, 2008-09-01 at 20:49 -0400, Bob Leschyna wrote:
Thanks to all who have responded in regard to the features which are not
yet enabled... I am sorry for being slow on the draw, I use to keep up
on
Julian, G4ILO wrote:
I think it was me who used the term ghost signals when referring to the
harmonically related CW traces I could see on the CW Skimmer display.
Julian,
About 6 months ago I found a similar situation with another radio and
another program. In that case the distortion was
The main benefit would be to other transceivers you
may have, like my OMNI VI+, now I don't need to think
which of my rigs are okay for the amp. It's great to
know the K3 device is diode protected - K3 - what
else? !!!
The Elecraft K3 uses an IRF1630 HEXFET Power
MOSFET, rated for 200V with an
On Mon, 01 Sep 2008 18:45:36 -0400, Jack Smith wrote:
I've found that the LIN OUT port has typical third harmonic levels
around -45 dB from the fundamental, with the LIN OUT level set at 10,
the factory default. The headphone port, under the same conditions,
will
show the third harmonic down
Anyway, the noise/distortion is still there coming out of the
headphone socket.
The spectrum display you sent me shows an excessive level of
50 Hz harmonics - some 15 dB above the noise floor and only
40 dB below the desired signal from 150 Hz to above 3 KHz.
That strongly indicates
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