Elecrafters,
when you are on a Frequency working someone or calling , it may happen
that you accidently touch the RIT-Knob and --poof-- the qrg is gone.
Even if VFO is locked.
Very bad in a contest when you are running.
To prevent this, I switch on RIT (if i don't forget).
What do *you* do to
DM4iM wrote:
Elecrafters,
when you are on a Frequency working someone or calling , it may happen
that you accidently touch the RIT-Knob and --poof-- the qrg is gone.
Even if VFO is locked.
Very bad in a contest when you are running.
To prevent this, I switch on RIT (if i don't
Jeff,
Unstable rf power output has often been discussed here. It was a problem in
the early days (I have #145) but in my own experience has now largely
disappeared. However very occasionally it inexplicably reappears out of the
blue and I'll get a session of unstable output which like stocks
Phil:
The easiest way to check things out is by substitution. First try a
different computer, preferably one with a built-in serial port. Do you
have a spare one that wasn't affected by the event? If not,do you have
a friend with a laptop (and a USB-serial adapter) who wouldn't mind
having
DM4iM wrote:
Elecrafters,
when you are on a Frequency working someone or calling , it may happen
that you accidently touch the RIT-Knob and --poof-- the qrg is gone.
Even if VFO is locked.
Very bad in a contest when you are running.
To prevent this, I switch on RIT (if i don't
Wished I had a set of ears like yours.
12 KHz alias signals measure 65 dB down from CW beat note in my K3
while 3rd harmonic is 55 dB down.
Juan, I think your 3rd harmonic measurement is the key. If you research
audio fatigue you may find that odd harmonics are particularly troublesome
and that
Juan, I think your 3rd harmonic measurement is the key. If you research
audio fatigue you may find that odd harmonics are particularly troublesome
and that they can cause audio fatigue even when the level is below what
you
might consider audible.
Mike,
There may be several variables
DM4iM wrote:
Elecrafters,
when you are on a Frequency working someone or calling , it may happen
that you accidently touch the RIT-Knob and --poof-- the qrg is gone.
Even if VFO is locked.
Very bad in a contest when you are running.
To prevent this, I switch on RIT (if i don't forget).
I'm writing this in case others run into a similar problem.
I got to the Alignment and Test, Part II and discovered my U6 pin 8
resistance was low (58.3 with 100 ohms required). I visually inspected but
found nothing. I traced around doing resistance checks and found an
unexpectedly low reading
I have searched archives galore and cannot find, or do not know how to
search properly for interfacing the K3 to the Dunestar 600 Bandpass
filters. Has someone built a cable that goes directly from the K3 Aux
I/O port to the Dunestar such that it will automatically switch in the
correct
Ken,
I looked on the Dunestar website and found that the model 600 needs
decoded band selection. They mention the Top Ten Band Decoder.
The K3 band data outputs are encoded (see the manual for the encoding
chart), and so you will need some sort of band decoder between your K3
and the Dunestar
There may be many reasons for the same symptom.
In mine, the power decreases intermittently to a very low value, then ERR
TxG appears. It all clears by itself in 5-60 min but then reappears again.
Reinstalling LPA cleared the problem for 2 months but now it is back. I
found recently that the
Call me stubborn, but I believe that it should be possible to *make* the K3
and a logging program work together as SO2R-in-a-box. This probably
involves external, switched bandpass filters, might involve an external
antenna switch and/or applying a context swtich via the logging program,
but it
Brian Machesney wrote:
Call me stubborn, but I believe that it should be possible to *make* the
K3
and a logging program work together as SO2R-in-a-box. This probably
involves external, switched bandpass filters, might involve an external
antenna switch and/or applying a context swtich
Just turn off CONFIG:VFO OFS so the offset control can't change the
VFO frequency.
73,
Wayne
http://www.elecraft.com
On Oct 16, 2009, at 12:13 AM, DM4iM hamra...@vr-web.de wrote:
Elecrafters,
when you are on a Frequency working someone or calling , it may happen
that you accidently
It may be possible to do full duplex with the sub receiver on a
different band and antenna from main, since it's very well-shielded.
I'll give this a try. Some firmware changes will be required.
73,
Wayne
http://www.elecraft.com
On Oct 16, 2009, at 7:21 AM, Bill W4ZV
wayne burdick wrote:
It may be possible to do full duplex with the sub receiver on a
different band and antenna from main, since it's very well-shielded.
I'll give this a try. Some firmware changes will be required.
Remember that most folks who want to do this will be running full
If you pull this rabbit out of your hat, how about an IPO.
John k7up
At 08:32 AM 16/10/09, you wrote:
It may be possible to do full duplex with the sub receiver on a
different band and antenna from main, since it's very well-shielded.
I'll give this a try. Some firmware changes will be
It may be possible to do full duplex with the sub receiver on a
different band and antenna from main, since it's very well-shielded.
I'll give this a try. Some firmware changes will be required.
Remember that most folks who want to do this will be running full power, so
you'll need a
I am 60 years old and what fatigue me more is to listen more than half an hour
any SSB with less than 2.4 Kz specially If the roll-off is been set over
300Hz,what I like the most on my K3 is precisely the wide audio bandwith from
50 to 4000Hz that I have now after the newest FW 3.42 and with
I posted a question before about this issue, that i notice only after the
latest firmware update. When VOX is ON in CW and switch the K3 off and on
again, i loose the VOX setting and have to press the VOX button again to be
able to transmit in CW. It does not keep the latest setting. This does
What firmware revision number does latest refer to? Things are moving
fast. 73, Guy.
On Fri, Oct 16, 2009 at 11:00 AM, PA3CW pa...@planet.nl wrote:
I posted a question before about this issue, that i notice only after the
latest firmware update. When VOX is ON in CW and switch the K3 off
Hi gang,
The weekly Elecraft SSB net will meet Sunday, 10/18/09 at 1800Z on 14.314
MHz. Hopefully, we will have good propagation. See you there.
73,
Phil, NS7P
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Home:
On Fri, 16 Oct 2009 07:28:44 -0700, Wayne Burdick n...@elecraft.com
wrote:
Just turn off CONFIG:VFO OFS so the offset control can't change the
VFO frequency.
73,
Wayne
[snip]
Thanks Wayne!
Tom, N5GE
n...@n5ge.com
K3 #806, K3 #1055, PR6,
XV144, XV432, KRC2,
W1 and other small kits.
2 W2's
Dick:
Wayne introduced the following change at 3.10. Just reverse the
following procedure:
* CW VOX OFF BY DEFAULT ON POWER-UP: Some stations using PC control
may inadvertently key the K3 in CW mode on power-up if VOX CW is in
effect. If this is an issue at your station, locate the
SO2R-in-a-box will probably require that the subreceiver
use the 2nd antenna jack on the KAT3 (or a yet to be designed
antenna switch) in order to be compatible with conventional
BPF, antenna switching and amplifier configurations. In that
case it will be limited by the isolation in the
On Fri, 16 Oct 2009 08:00:24 -0700 (PDT), PA3CW pa...@planet.nl
wrote:
I posted a question before about this issue, that i notice only after the
latest firmware update. When VOX is ON in CW and switch the K3 off and on
again, i loose the VOX setting and have to press the VOX button again to be
Dave,
Thanks for the suggestion. I'm using a level of 8 ---the manual recommends
no more than 10. In sideband I get a good level to the programs I mentioned.
In data modes there is absolutely nothing showing on the programs displays.
It's like there is absolutely no output from the Line
Sale Elecraft K3 (serial 1094) with the following options:
- KAT3-F
- KPA3-F
- KXV3
Fully assembled, adjusted and working.
Price 1800 Euros
Contact: carrabo...@gmail.com
__
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y
I need a cable set for a US navigator for my K3, I have a set available for
trade or for sale that is for an Orion 2. Contact me off list at
kc...@hotmail.com
Mike KC0CF
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Home:
On Fri, Oct 16, 2009 at 11:21 AM, Joe Subich, W4TV-4 (via Nabble)
ml-user+154617-66613...@n2.nabble.comml-user%2b154617-66613...@n2.nabble.com
wrote:
SO2R-in-a-box will probably require that the subreceiver
use the 2nd antenna jack on the KAT3 (or a yet to be designed
antenna switch) in
Wayne Burdick schrieb:
Just turn off CONFIG:VFO OFS so the offset control can't change the VFO
frequency.
73,
Wayne
This is it! Thanks.
Martin
--
73, DM4iM
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Home:
Hi Brian,
I had the same idea and was thinking building an automatic switch
contrilled by CAT. So you can get QRG of Main and Subreceiver and switch
antennas like wanted.
Even for diversity operation this would be helpfull.
If the Elecraftteam is able to manage TX and RX simultaniously this
I use the same board/circuit I use to drive VHF transverters from my K3 to
drive my Dunestar. The only difference is the K3 menu settings. I wrote it
up at http://g4fre.com/k3vhf.pdf
Dave
ww2r
Message: 14
Date: Fri, 16 Oct 2009 08:17:07 -0500
From: Ken Adams K5KA kfiv...@gmail.com
Subject:
Jon K Hellan wrote:
When experimenting with diversity receive (antenna #2 connected to
the BNC socket), on some bands I've heard clicks, which I've taken
to be the carrier operated relays. I've stopped using diversity on
those bands with that antenna configuration. But how dangerous is
Hi Wayne,
I really appreciate your prompt input. That was an interesting
exercise by Bob and maybe this sort of information should be posted on
the Elecraft website (if it is not already there!). Two (younger)
friends are going to borrow my K3 for the 160M contest in January (Snow
and
You'll need a band decoder. Try a Top Ten Devices Yaesu decoder or a
Universal Microsystems BCD 10, which is very affordable. These devices
convert from BCD to a separate wire per band.
Dick, K6KR
Sent from my iPhone
On Oct 16, 2009, at 6:17 AM, Ken Adams K5KA kfiv...@gmail.com wrote:
I
Or an Elecraft KRC2 will do the job quite nicely!
Jack Brindle, W6FB
On Oct 16, 2009, at 9:39 AM, Dick Dievendorff wrote:
You'll need a band decoder. Try a Top Ten Devices Yaesu decoder or a
Universal Microsystems BCD 10, which is very affordable. These devices
convert from BCD to a separate
W5CEM wrote:
Wish I could get to Santa Barbara.
Me, too. I like mountains and back country. :)
-
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
Julian, G4ILO wrote:
Me, too. I like mountains and back country. :)
Oops! For some reason, Nabble added new comments to this old thread, and I
thought it was a new thread. Sorry!!
-
Julian, G4ILO. K2 #392 K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm -
Of course the KRC2 will do this! My apologies!
Dick, K6KR
Sent from my iPhone
On Oct 16, 2009, at 9:43 AM, Jack Brindle jackbrin...@earthlink.net
wrote:
Or an Elecraft KRC2 will do the job quite nicely!
Jack Brindle, W6FB
On Oct 16, 2009, at 9:39 AM, Dick Dievendorff wrote:
You'll
I have just fitted the FM filter to finish off my complement (now 13, 6,
2.7, 0.5 and 0.25). I used the K3 utility to set the bandwidth (13kHz) and
I have all the square boxes ticked (checked) so that, in my understanding I
should be able to go up to the full bandwidth of the filter in all my
Thanks to Stewart and Ignacy for their replies. At least I'm not alone! The
problem is intermittent and I can go days without its occurrence before,
suddenly, RF output will abruptly go to zero until I recycle the power or punch
it in and out of split mode, either of these maneuvers usually
On Fri, Oct 16, 2009 at 11:21 AM, Joe Subich, W4TV-4 (via Nabble)
ml-user+154617-66613...@n2.nabble.comml-user%2b154617-66613788@n2.nabble.com
wrote:
SO2R-in-a-box will probably require that the subreceiver
use the 2nd antenna jack on the KAT3 (or a yet to be designed
antenna switch) in
Johnny,
Do you have pictures posted? I remember when you started this project and
I'd like to see how it worked out.
Presonally I lean more toward LiFePO4; although they have a lower energy
density than the Li-Po (though higher power density) they reportedly are
safer in conditions of
An advantage for using the KRC2 is that it can obtain the band data from
the K3 RS-232 port and one does not have to wire to the 15 pin ACC
connector.
73,
Don W3FPR
Dick Dievendorff wrote:
Of course the KRC2 will do this! My apologies!
Dick, K6KR
Sent from my iPhone
On Oct 16, 2009, at
Hi all,
I'm trying to get my K2 finished soon and am hoping to work on the
KSB2 module this weekend and early next week before some work/leisure
travel to California. One mod I'm planning on incorporating in the
KSB2 module is the SSBCAPKT, which allows for either 2.4 or 2.6 kHz
SSB signals.
I've
G'day,
Over spec'ed and over price for such a simple job.
Regards,
Mike VP8NO
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: elecraft@mailman.qth.net
Cc: Ken Adams K5KA kfiv...@gmail.com
Sent: Friday, October 16, 2009 3:34 PM
Subject: Re: [Elecraft] K3 Aux I/O and
John W4PAH asked
One mod I'm planning on incorporating in the
KSB2 module is the SSBCAPKT, which allows for either 2.4 or 2.6 kHz
SSB signals...
I'm wondering what I will be gaining/losing in either case. If I can
do 2.6, should I do it?
Any experience/assistance is appreciated.
Hello Criag,
I am using the LP-Pan and k3 with mix for all modes.do you still need help
setting up? if so let me know and will work with you over the weekend.
Don...w2xb
Craig WØLV wrote:
I have all of the above. Is there any way I can use the LP-Pan and sound
card to run with MixW for
Just being a devil's advocate, if nearly all the switching/setting is handled
by a computer, can the radio be almost a black box?
No, I don't do SO2R.
Ignacy
Bill W4ZV wrote:
On Fri, Oct 16, 2009 at 11:21 AM, Joe Subich, W4TV-4 (via Nabble)
Thanks for the replies. Yes, the setting in the menu to VOX norm solved the
problem. It occured after installing the latest beta firmware. Maybe the
default setting has changed here. Anyway, thanks for the help of solving the
issue.
73,
Dick PA3CW
Radio Amateur N5GE wrote:
On Fri, 16 Oct
And now it's complete, KX1 #2140! I still have to figure out how to
configure the Auto tuner but other than that it works. I had one small
problem on the final build. I had trouble with the wires under the battery
holders and so now I have 4 shiny new bolts with equally shiny nuts sticking
out
I noticed when I was jumping between bands chasing K4M that when returning
to a band where I had split frequency enabled that the split was disabled
and
then by misstake I started to transmit on their transmitting frequency.
How to keep the K3 splitoperation enabled when jumping around between
John,
The 2.6 kHz bandwidth does indeed sound better, but if you are going to
keep that K2 as a QRP rig, then I suggest the 2.4 kHz width because
there will be more power in the passband.
73,
Don W3FPR
John Shadle wrote:
Hi all,
I'm trying to get my K2 finished soon and am hoping to work on
The K3 DSP maxes out at 4 KHz on SSB and 2.8 KHz on CW.
With those limitations, the widest roofing filters that
will be selected are 2.8 KHz on CW and 6 KHz on SSB.
The FM filter can be selected in AM (BW 3 KHz audio).
73,
... Joe, W4TV
-Original Message-
From:
I have just realised my mistake. I can find no reference to it in the
manual but in searching the archives (again) I found a posting which
mentioned the 4.2kHz (AFAIR) bandwidth limit imposed by the DSP. So, it
would seem that things are working as they should- I was confused by the
filter setup
Thanks Joe,
Your reply arrived as I was typing my reply to my own original posting,
after having found the information in the archive!
Many thanks, it's clear in my mind now.
73 Stephen
On 16/10/2009 22:16, Joe Subich, W4TV li...@subich.com wrote:
The K3 DSP maxes out at 4 KHz on SSB
Jan,
Wayne answered this yesterday with the following - you must have missed
it.
-
Set CONFIG:SPLT SV to YES. This preserves the on/off states of SPLT,
RIT, and XIT on band change.
Wayne
N6KR
I noticed when I was jumping between bands chasing K4M that when returning
to a band where I had split frequency enabled that the split was disabled
and
then by misstake I started to transmit on their transmitting frequency.
How to keep the K3 splitoperation enabled when jumping around
If I want to use it as both QRP and QRO, then it seems like 2.6kHz is
the way to go. I have the 100w amp and tuner and plan on using them at
home. Probably will be operating QRP most of the time, but I want to put
out the best sounding signal possible, too.
What is the difference in power
Is it possible to have A and B VFO's on different modes? (no sub) If so,
what controls the B mode?
How about having the B VFO automagically go to the same band as A, when
entering split ?
Thanks,
Mike NF4L
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Elecraft mailing list
But Don, I is a 10% increase in RF power produced by the narrower 2.4 kHz
bandwidth even audible?
I can see dropping to 2 or 2.2 kHz to see enough improvement that it might
be audible under weak signal conditions, but the tiny difference between 2.4
and 2.6 seems unlikely to be noticeable.
Ron
I think it depends on the voice spectrum. With a typical male voice
there is a lot of power at low frequencies which is not needed for
comprehension.
If those low frequencies are filtered out, either by an audio high-pass
filter (series capacitor) or by the crystal filter (the edge nearest the
My electric company had a service-related power outage in my area for a few
hours this
morning, and so the DC supply for my K3 was turned off for one of the first
times in
several months.
When I powered the supply again and tried to turn on my K3, the display does
not light but
all of the
K3 beta-test firmware revision 3.44 (with DSP rev. 2.38) is now
available. See release notes below. If you've been using older
firmware for awhile, I'd suggest upgrading now. We've made many
important improvements over the past few weeks.
Please send any questions to k3supp...@elecraft.com.
Good afternoon, All.
I have for sale a Vibroplex Vari-Speed [w/Allen Wrench] for the Vibroplex
Original round shafted models with the 1/8 shaft. It's in excellent
condition. It is surplus to my needs now. There are no weights as you use the
weight that came with your bug.
There is no
Quite true. I assumed the filter was adjusted for the *same* low frequency
cutoff so that wouldn't be a factor.
The improved intelligibility of the wider filter comes from the better high
frequency response. Setting it to make more lows would defeat the value of
the wider filter and waste energy.
Jeff Maass wrote:
My electric company had a service-related power outage in my area for a
few hours this
morning, and so the DC supply for my K3 was turned off for one of the
first times in
several months.
When I powered the supply again and tried to turn on my K3, the display
does
SO2R is short for Single op, TWO radio.
While I trust the good folks at Elecraft can make the second receiver work
full duplex, the end result will NOT be TWO radios. Many folks are using
two K3's for SO2R, and others are using the K3 plus something else for
SO2R.
Consider for a moment that I
I own K3 # 3355. Love it. Only thing I do not have is the digital recorder and
the sub receiver. I am considering the sub receiver. I read in the operating
manual that there is a -3 db loss when both receivers are using the splitter
(common antenna). Is that interpretation correct ? I would
jim danehy wrote:
I own K3 # 3355. Love it. Only thing I do not have is the digital recorder
and the sub receiver. I am considering the sub receiver. I read in the
operating manual that there is a -3 db loss when both receivers are using
the splitter (common antenna). Is that
Jim: I don't even notice it. The noise is similarly halved, so I just
turn the gain to a comfortable level. The loss is that half the
signal is going to each receiver.
Others can explain it more technically, but I don't notice this loss
Dick, K6KR
Sent from my iPhone
On Oct 16, 2009, at
Jim Danehy wrote:
I own K3 # 3355. Love it. Only thing I do not have is the digital
recorder and the sub receiver. I am considering the sub receiver. I
read in the operating manual that there is a -3 db loss when both
receivers are using the splitter (common antenna). Is that
On Fri, 16 Oct 2009 16:17:18 -0700 (PDT), Bill W4ZV
btipp...@alum.mit.edu wrote:
jim danehy wrote:
I own K3 # 3355. Love it. Only thing I do not have is the digital recorder
and the sub receiver. I am considering the sub receiver. I read in the
operating manual that there is a -3 db loss
3dB accross the combiner using both recievers, for low band use not an
issue.
The digi audio recorder is great. On air play-back is excellent.
cheers
Paul
zl1ajy
I own K3 # 3355. Love it. Only thing I do not have is the digital recorder
and the sub receiver. I am considering the sub
Hello Craig,
Just tested my setup and its working fb, so can give you my settings. Only
difference is that I have a navigator interface in between the LP-Pan and
the EMU-202. But with the right settings you should be good.
First you have to setup your K3 for digital. Press the mode key on
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