VHF SKN activities were interrupted tonight when I switched to 2m and
all of the buttons went wonky -- some completely dead; others performing
unrelated functions. When the sanity checks (re-seat boards, re-load
firmare) failed to make a difference, I started crawling the schematics.
Since this morning 1/1/2012, K3 #6118 is on air in Germany.
Happy new K3 and a happy new Year to all!
vy 73 de DC0ZO,
Michael
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
Many, including me, have had that problem where one of the front panel
switches hung up. You might try exercising all the switches to see if it
clears. Otherwise maybe one of the switches has stuck on permanently.
73, HNY John N1JM
--
View this message in context:
Phil,
What do you want to accomplish (other than just an antenna for 40
meters)? Lowest loss? Broadband? Easy- up? Etc? Those parameters will
determine your best choice.
Easiest IMHO is to just feed it with coax with a current mode choke at
the feedpoint. That should present a less than
I think I understand your feelings about the old K2.
I owned, for a time, serial #7. I didn't build it myself - I acquired
it from a ham in Canada. There was a somewhat mystical quality felt in
having one of the early ones - wish I had it back :-( . It went for a
good cause though... and
In all this time with K3 #24, I've never been stymied by any issue
such as described below.
I'm a Navy-Marine Corps MARS member. We use RMS Express in the WL2K
system on HF, running WL2K Winmor mode The software I have is version
1.1.3.0.
I also use LP Bridge to create two COM ports: one
Don,
goals:
1. Lowest loss.
2. Full 40-meter band coverage but resonant at 7.1 MHz.
3. Assume using a tuner (like K3 or KAT500).
4. Choke common mode currents.
Total feed line length will be on the order of 100 feet for this particular
dipole. For the 30 meter dipole I also plan to put
GM es HNY to all !!
The KX1 was my first Elecraft radio and I used it to learn (still learning) CW
with. As other have stated, it's just too much fun and such a neat little radio
for what it does ! I too have a KX3 on order, but for right now, I don't want
to part with the little KX1 !
I also
On 12/31/2011 9:14 PM, Phil Hystad wrote:
Or, maybe a 1:1 balun right at the antenna feed point with coax the remaining
distance to the shack?
No question -- 50 ohm coax wound around one or more #31 or #43 ferrite
cores to form a common mode choke. See
Phil, I would put the balun at the center of the antenna and use one that
doubles as a center insulator and attach point for the raising rope. The loss
for RG-8X will be about 1 db, so you will not notice. I have had very good
luck with attaching an 80 meter dipole to the same coax and balun.
On 12/31/2011 9:36 PM, Phil Hystad wrote:
Or, is that a common mode choke you mean?
I HATE use of the word balun, because it is used to describe at least
six very different things. A so-called current balun is really
nothing more than a common mode choke. The chokes I've described in my
On Sat, Dec 31, 2011 at 9:35 PM, Don Wilhelm w3...@embarqmail.com wrote:
Keep in mind that the length of an unmatched feedline is critical to the
success or failure of such a system. That is a factor that is seldom
mentioned in posts that say a particular antenna works well and loads
well -
A table I looked at suggested that on 7 MHz loss for RG8X would be less than
1 db for a 100 foot run of it. When dealing with a resonant dipole on the
lower HF bands feedline loss is not a big issue. I would not consider using
open wire feed for such an antenna (unless I wanted to operate on
Guys,
Thanks for all the responses both on-line here in the group and off-line.
Several people pointed me to Jim Brown's (K9YC) paper, including just a few
minutes ago, Jim Brown himself (thanks).
I grabbed the paper last night but was too tired from a half-bottle of
champagne to do anything
Ed wrote:
I'd considered parting with the K1, but for now have decided to keep
the family together as we wait for the newest member !!
The K1 has demonstrably better RF performance in most particulars than the
KX1 for ham band CW operation, except for size, crystal-like stability,
and audio
Phil,
100 feet of coax (RG-8X) has less than 1 dB loss at 40 meters - RG-213
is less loss, so I recommend using coax unless you have the patience for
properly supporting a balanced feedline. What I am saying is that you
will not gain very much with lower loss balanced line. Be aware when
Friends,
My good friend and elmer Mark (n1lo) recently purchased a pre-loved K3 and
treated himself to a P3-K for Christmas. I visited him yesterday, and
watched as he assembled his new 'toy'. All went pretty well, until we
hooked it up. It all seems to work, except, there is no signal
I am thinking about purchasing and installing a sub-receiver for working
split and diversity.
When reading the installation guide there is a section called Checking
and Modifying Resistor R91 and DAC Input Circuits. I have a 1 year old
K3 SN 4912 is it safe to assume that this is already
Look carefully at whether the two bnc connectors on the rear panel are in
the right positions. It is possible (although not easy) to have them
reversed.
73 Stephen G4SJP
On 1 January 2012 18:09, Bill Conkling n...@widomaker.com wrote:
Friends,
My good friend and elmer Mark (n1lo)
Well, this is normal for digital mode DATA A. I'm not familiar with your
particular software, but for PSK31 and similar modes, the K3 VFO A is set to
a frequency for the carrier. The audio is on the upper sideband, and is
centered in the 3 KHz passband which is 1.5kHz up from the carrier. Thus
I had the exact symptom when I first built my P3 I had installed the RF
board in the P3 upside down (yes, it is possible to do so!), so I was actually
connecting the IF in to the output jack of the P3 instead of the input jack ...
silly error ... perhaps you can benefit from you
Greetings,
As others have stated well, there are as many objectives for the KX3 and
FT-817 as there are users.
For me, the KX3 fills the bill that multiple rigs have filled in the past.
I use a KX1 on the trails here in the Rockies. It's a fantastic radio and I
love using it. I picked up an
Thanks, but checked that as well. I don't believe the assembly will fit
with the switch protruding the panel if reversed.
Thanks for the reply.
...bill nr4c
_
From: Stephen Prior [mailto:eastbrantw...@gmail.com]
Sent: Sunday, January 01, 2012 1:16 PM
To: Bill Conkling;
Bill,
I had a similar problem.
I found the output of the IF connector on the back of the K3 to be
shorted on the RF board end of the pigtail. A solder bridge was the culprit.
If you have another receiver capable of tuning around 8.125mhz, you
might try hooking the IF output of the K3 to the
Willis,
I use two inverted vees mounted at right angles to each other for 80 and
40 meters, no interaction that way.
The feedline may be of interest - it is a Transmission Line Resonator to
make the 80 meter antenna broadbanded - it consists of 1 wavelength of
RG-8 (that includes the balun)
I guess Elecraft are now beyond wanting to make relatively minor changes to the
K3 as it is now a mature product, but how about this? On two occasions recently
I have been in QSO with a weak distant station on 160 or 80 and a very loud EU
has come up on the same frequency with a QRL? On my
Thanks for your reply, Bill.
I verified that the software is setting the correct carrier freq,
based on the center freq cited by the MARS frequency matrix. I was
thinking along the same lines as your suggestion below.
If I use program control to set the freq, then I get TX + 1.5 KHz =
RX. This
Matt,
I too believe your software does not compensate for how the K3 handles
(and displays) the frequency when in DATA A mode. The K3 indicates the
suppressed carrier frequency rather than the Passband center frequency.
It sounds like your software is trying to set the K3 to the channel
I think you nailed it Don! My list of Government frequencies showes both the
dial frequency and the center, which is off set by 1500 Hz.
Carry-on
Bill-w7kxb
Date: Sun, 1 Jan 2012 14:48:58 -0500
From: w3...@embarqmail.com
To: mzil...@verizon.net
CC: elecraft@mailman.qth.net
Subject: Re:
What Don is saying is certainly true for the UK military HF gear I have
used. Centre of channel is always 1500Hz higher than the suppressed
carrier frequency.
73 Stephen G4SJP
On 1 January 2012 19:48, Don Wilhelm w3...@embarqmail.com wrote:
snip
It sounds like your software is trying to set
Sent from my Wireless Device
-Original Message-
From: Matthew Pitts daywalker_blade_2...@yahoo.com
Date: Sun, 1 Jan 2012 19:56:07
To: d...@w3fpr.com
Reply-To: daywalker_blade_2...@yahoo.com
Subject: Re: [Elecraft] K3: data modes - bizarre behavior
Don,
RMS Express is actually a Ham
Hi Tom,
There are LCD icons for both RIT and XIT. XIT is rarely used, and
you'd think that those who do use it would be motivated to keep an eye
on both the XIT icon and the Delta-F LED. That said, I'll add to my
list consideration of flashing the XIT icon and/or the Delta-F LED. I
have
Since the PA temp is available as well as the filter bandwidth in use, I
wonder if the P3 could have an auto-adjust of REF LVL? It would only
work within a given band and only after the op has adjusted the REF LVL
to begin with. But after that it seems that the good ol' N = kTB would
be a
Phil,
LADDERLINE VS COAX
I would use coax feed and a 1:1 balun right where the coax connects to the
dipole.
I have used window line and 450 ohm home made ladder line on various antennas
over the years and grew tired of working on
feedline issues. Theoretically with balanced feedline there
My P3 worked well for less than 24 hours after assembly and then
developed the same symptoms. It turned out to be a failure of the MMIC
amplifier device on the RF/Splitter board. I did a board exchange and
it's been running fine for several months. Perhaps there was a bad run
of these devices,
I am adapting a Yamaha CM500 to the K2. I need the 5+ volts on pin 6 and
normally would jumper the two as then I BELIEVE I could use the MH2 and Heil
adapters ( it is now setup as well as K3 as a Kenwood), BUT I am NOT sure
if I will blow something.
Suggestions??
Thank You
Paul - KB9AVO
Matt,
I verified that the software is setting the correct carrier freq,
based on the center freq cited by the MARS frequency matrix. I was
thinking along the same lines as your suggestion below.
Standard practice in government operation - including MARS in recent
years - is to specify
Matt,
Just leave the K3 in USB, do not change to data mode. RMS Express will set to
the correct freq. You will not have to make any adjustments.
Jack
W4GRJ / AFA4DG
On Jan 1, 2012, at 11:30, Matt Zilmer mzil...@verizon.net wrote:
In all this time with K3 #24, I've never been stymied by any
Greetings everyone. I ordered a K3/100 in kit form last week. I should have it
this week. Just wondering how long it should take to assemble it?? Guess this
is very different from my Heathkit days..
Thanks in advance and a very Happy Healthy New year to all on the list..
73 Steve/k2we
It took me 8 hours and I did not rush. I think the average is about 8 hours.
I found it fairly easy although I forgot to put in one screw and had to take
the front panel board thing off and do it again. But, that only cost me about
15 minutes.
73, phil, K7PEH
K3 Serial #3799
On Jan 1,
Paul,
Do 2 things.
Yes, connect straight across the microphone configuration header to
connect +5V to pin 6, and then solder a 5.6 k resistor between pins 1
and 6 of the mic jack.
Second thing is just a check of the Heil Kenwood adapter - use your
ohmmeter, connect one lead to pin 6 and check
Hello all,
Just finished up the KFL1-2 band board for my K1, selected bands 80 and 15
meters.
Base Line Info:
TX - Elecraft K1 serial 3052
Ant Tuner - No installed
Power supply - 13vdc
Dummy Load - Elecraft DL-1 - all measurements taken with this as load
Power Meter - Oak Hills Research (OHR)
Hi Don,
I've captured the commands sent to the K3 prior to TX on the assigned
frequency:
FAfff; # fff is the correct carrier frequency.
FR0;
RT0;
XT0;
MD;
DT0;
I'm still mystified, since the FA command is setting the correct cxr
frequency.
It is also true that RMS Express uses
Don,
That note has been in the SubRX manual for a very long time - I am
looking at Rev. C dated October 16, 2008 - at that time there were K3
being shipped that already had the change.
So, there is a *very* high probability that your K3 already has the
change since it is only a year old.
BUT
Thanks, Joe. I've been with MARS for a few years now and understand
the channel center frequency matrix.
This is a case where the string setting the K3's carrier freq is
setting the correct value. There is something odd at work here.
matt
On Sun, 01 Jan 2012 15:47:51 -0500, you wrote:
Matt,
On my K3 the transverter have just 5 w on 145 mhz FM or USB.
Solutions ??
jacques
tk1lg
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post:
Hi
My thanks to Don,Alan and Richard for thier help locating the PA
problem,without them I would have had to send it to Elecraft.
When hooked to the power supply the supply shows 13.5v and the display on
the K2 13.1. It dosen't
matter what power supply or battery I use the results are the same.
Matt,
What does your frequency matrix say for center of channel and
what is RMS Express setting for DATA A dial (USB carrier) frequency?
In DATA A, the dial frequency is identical to the USB carrier
frequency.
73,
... Joe, W4TV
On 1/1/2012 4:25 PM, Matt Zilmer wrote:
Thanks, Joe. I've
Frank,
There is a protective series diode in the K2 - the internal K2 display
reads the voltage on the K2 side of that diode. Due to the diode drop,
the voltage on the power supply side of that diode will be greater.
73,
Don W3FPR
On 1/1/2012 5:03 PM, kf4clo wrote:
Hi
My thanks to Don,Alan
Dear All
HNY..
Does anyone have a KAF2 surplus to requirements?
Replies off list directly to me please. Thanks...
73 Marc G0AZS
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
8 hours seems to be the consensus! Just be sure to sort all the parts before
you start...there are a lot of them! Did mine with another ham over two
weekends, and it was just over the 8 hours! But we didn't hurry
--
View this message in context:
Matt,
Did you make a typo on that MD; command - if that is really what is
being sent, that is a GET - it should be MD6; for normal sideband in
data mode. The rest all looks correct, but there may be some subtle
problem with the order in which the commands are sent.
The mystery deepens.
73,
Gary VE1RGB is traveling and asked that I forward to the list his note that
was accidentally sent only to me. He describes a table lookup rather than
the noise temp calc in my note. Maybe there are still more ideas?
73,
Mike ab3ap
On Sun, Jan 1, 2012 at 5:10 PM, Gary Bartlett
I ended up using a different USB to serial adapter and re-downloaded the
files. Works like a champ now!
Dave, W0RU
K3 #5253
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K3-Error-loading-DSP1-firmware-tp7117360p7142759.html
Sent from the Elecraft mailing list archive at
It's always fabulous to hear that kind of consideration, Wayne!
Apropos to the perfect pitch discussion a few weeks back, I suffer/enjoy
audio/visual synesthesia, and blinking things annoy the crap out of me!
On Sun, 1 Jan 2012, Wayne Burdick wrote:
Hi Tom,
There are LCD icons for
I have assembled two, and I'd allocate about 8 hours in no fewer than two
sessions. inventory the small fasteners into some sort of containers and watch
out for minor screw size differences and use the one described in the assembly
instructions rather than the one just like the previous screw.
Hi Dick,
As an owner of a 3 year old factory built K3 I kind of knew that they used
power screwdrivers in the assembly. One day I plan to perform surgery on
the one remaining front panel screw that I was unable to remove. Doing the
DSP board swap was an adventure.
73,
Mike K2MK
Dick
We had a nice New Years edition of the net today, with 29 participants over
a 26 minute period. Bob, K6XX, checked in with a KX3!
The only discussions were lots of well wishing with the holiday. Have a
great week.
Here is the list of participants.
Station NameQTH Rig S/N
The KAT2, KIO2, and ETS14 have been sold pending funds. The KBT2 and EC2
are still available. I will consider selling the KBT2 without the
battery for $30 if someone would rather get a newer battery directly
from Elecraft. That should also help lower shipping costs without the
weight of the
Hi Wayne,
A while back I found a used Roland Mobile Cube stereo amplified portable
speaker set at the TRW swap meet ($5) and to my surprise it works pretty
well as a laptop amp, portable PA (mic needed), or as a mono or stereo amp
for just about any mic or line level driver (including radios like
4-40 screws are really quite easy to twist in half with a power screwdriver.
That's easy to fix if you have a spare. It's also easy to rip the threads
out of the PEM nuts. That's not so easy to fix.
That's why Wayne was clear that we should specify *no* power screwdriver in
the assembly manual.
Take a look at the TDK Lambda switch mode power supplies. The LS50-15 that
I have is pretty quiet, with output voltage adjustable from 13.5v to 16.5v,
about $20 from Newark Electronics. The LS35-12 is a bit cheaper if you
really only need 12 volts.
I installed the KAT3 over the weekend and the construction and calibration
was successful. This evening I hooked everything back up to check reception,
tuning and swr. I have it set to AUTO, when I tap the ATU TUNE switch the
tuner does its thing and I read a 1.0:1 swr on the K3 meter. I have a
I swore I was going GREEN for SKN. All green. You know, Heathkit.
After a few hours with my Heathkit CW Twins getting clobbered by stations a KHz
away, I thought what could it hurt? I don't have to TELL anyone I'm using an
AF-1. So I hooked it up.
But no, it wasn't enough. It sat there,
The SWR displayed on the K3 is after the PA, but before the ATU. The external
meter shows the SWR at the antenna, after the ATU.
Dick, K6KR
On Jan 1, 2012, at 20:12, John Dziedziejko dziedziej...@bellsouth.net wrote:
I installed the KAT3 over the weekend and the construction and calibration
Thanks for the responses, will take the Palstar out and hook the antenna
directly to the K3 and go by the K3's swr meter and power output
indications.
Best regards,
John W9QP
__
Elecraft mailing list
Home:
I've currently got a K3/10 (#1210) and I'm considering adding the 100w amp
option. Once I do this how difficult is it to revert to QRP? Does the power
control make this easy?
Thanks
Jim ab3cv
__
Elecraft mailing list
Home:
You can dial the power down at will. You can also disable the KPA3 with a menu
choice, without physically removing it.
Dick, K6KR
On Jan 1, 2012, at 20:46, Jim Miller j...@jtmiller.com wrote:
I've currently got a K3/10 (#1210) and I'm considering adding the 100w amp
option. Once I do this
I use this with my K3...
It is the best portable solution out there...
Plus you can use it with blue tooth from any blue tooth source. ipod ipad
laptop etc etc...
K3 with a blue tooth mod... no wires or you can wire it. Plus it has a mike
built in. Lion battery 12 hours plus or minus.
But the
Jim, it is easy to turn down the power. Just use the power control and you can
set any power you want down to 100 mw. The amp will kick out of the circuit
when you set a power below 12 watts. I have not tested the power reading very
well, as I have no watt meters that I think are more
Excellent!
Tnx
Jim ab3cv
On Jan 1, 2012, at 11:54 PM, Dick Dievendorff die...@comcast.net wrote:
You can dial the power down at will. You can also disable the KPA3 with a
menu choice, without physically removing it.
Dick, K6KR
On Jan 1, 2012, at 20:46, Jim Miller j...@jtmiller.com
Thanks a lot, Eric. Now we'll have to promote the junior chemist who
secretly added a potent but not yet FCC-approved pheromone--
mojoflourethane--to the K-line.
Happy New Year ;)
Wayne
N6KR
Eric wrote:
I swore I was going GREEN for SKN. All green. You know, Heathkit.
After a few hours
Hi all, I have had my K3 since mid August 2010. Bought it as a kit fully
optioned with 2nd Rx,gen coverage BPFand a set of 8 pole filters for main
2nd Rx.
Since I have had it in use (mainly 160M) it has performed almost flawlessly;
with one exception!
When I engage the SUB Rx on our early
Hi all, I have had my K3 since mid August 2010. Bought it as a kit fully
optioned with 2nd Rx,gen coverage BPFand a set of 8 pole filters for main
2nd Rx.
Since I have had it in use (mainly 160M) it has performed almost flawlessly;
with one exception!
When I engage the SUB Rx on our early
Try TAPping the FINE button to show as many numerals as you can, on both the
main and sub receiver (use the A/B to switch back and forth). Then make
sure that they BOTH have EXACTLY, to the last numeral, the same value.
That should take care of the problem.
Rick WA6NHC
-Original
redtar...@nycap.rr.com writes:
Greetings everyone. I ordered a K3/100 in kit form last week. I should
have it this week. Just wondering how long it should take to assemble it??
Guess this is very different from my Heathkit days..
Took me some 15 hours, but I had to account for cat and
Got mine last January. It took me 2 football playoff games plus about 1
hour. Works great. I now have a P3 and KPA500. A lot less time for them.
Happy new year
73 Joe K2UF
No trees were harmed in the sending of this e-mail; however, many electrons
were inconvenienced.
-Original
77 matches
Mail list logo
