David Pratt-2 wrote:
Do the K3 PC boards use lead free solder?
I have just read the rather disturbing article in last Thursday's
Guardian newspaper that highlights a potential problem with whiskers
developing on the solder as well as the solder being more brittle and
likely to fail
Brett Howard wrote:
There is no way that that knob could be 7.2 pounds. My wife (who I
mentioned this to and has too much time on her hands). Calculated that
if the thing was 2.5 in diameter and 1 thick solid tungsten billet it
would only weigh about 3.5 pounds. How big is this knob and
Wes Stewart wrote:
--- Eric Swartz - WA6HHQ, Elecraft
[EMAIL PROTECTED] wrote:
The K3 firmware used for the original QST review did
not turn off the
K3's RF speech compressor clipper even when the
compressor was set to
zero for their TX IMD two tone test. This resulted
in a
Yes I asked this question and [EMAIL PROTECTED] himself told me that this is
not going to result in an improvement of phase noise.
On Sun, 2008-04-06 at 11:01 +0100, David Woolley (E.L) wrote:
Ken wrote:
Am I right in thinking that the 1 ppm TCXO will have less phase
jitter - hense lower
A dynamic loudpeaker would work if you can't get hold of a real mic for a
quick try. I believe that the K3 has enough audio gain.
73,
Geoff
GM4ESD
Jim Miller AB3CV wrote:
I've got a K3 kit on order with delivery expected sometime this summer,
optimistically June.
I'm exclusively a CW op at
Neill Taylor wrote:
It does seem to use the Prolific chip, judging by messages I saw as the
driver was installing.
One thing to note here is that Prolific are obviously a B2B (business to
business) supplier. When they say that they can't supply drivers to
consumers, they don't mean
Ken wrote:
Am I right in thinking that the 1 ppm TCXO will have less phase
jitter - hense lower phase noise?
You cannot make deductions about phase noise from the presence of
temperature compensation.
I believe this question came up before and that the TXCO has no phase
noise advantage.
I posted this back in Oct, 2007, but since the topic has come up
again, well, here it is again.
Of note is that in NASA video #10, it indicates that tin whiskers were
found that were up to 1.8cm long (7/10th inch)...a long way from a
few mils recently cited.
de Doug KR2Q
-- Forwarded
Well lets put it this way if you are in Europe and you buy an electronic
product its made with lead free solder unless its been on the shelf for
a good long while. The EU recently mandated that all electronic devices
be free of the substances they consider hazardous and lead just so
happens to be
Thats also in much different conditions than what you'll find in most
electronics. But OK since NASA said so all electronic products from now
until eternity are destined to short themselves out and fail nasty
horrible deaths. Oh no what shall we ever do!
On Sun, 2008-04-06 at 07:06 -0400,
Clark Macaulay wrote:
I think the KAT2 is acting wierd. When to to TUNE with a dummy load,
* the display flashes in sequence ATU, then 10:1, then Lo P. If the KAT2
* is in CAL P or CAL S to bypass the little critter, the same three
* messages occur.
The classic cause of this is trying to
Roelof Bakker wrote:
I am looking for a source of onboard connectors like the one used for
the speaker and probe in the K2. This are two-pole devices. Three and
four pole units are used on PC motherboards for connecting the CPU
cooling fan.
If we distort our SSB audio by compression etc, then let's hope that the
sideband filter will limit the bandwidth. (I don't know where the
compression or whatever is done in a K3).
But if the PA distorts the signal even more, there is no filter to limit
this within a few kHz.
So I think the IMD
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Arie Kleingeld PA3A wrote:
If we distort our SSB audio by compression etc, then let's hope that the
sideband filter will limit the bandwidth. (I don't know where the
compression or whatever is done in a K3).
But if the PA distorts the signal even more, there is no filter to limit
this
The SMD LED chip that replaces R101 should be oriented with the two green dots
facing towards the front of the K3. Roy Morris W4WFB
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I must admit that I have had less than stellar results with the roll pins
myself... having a number fall out over time. Fortunately none fell into
'sensitive' electronic areas... they just fall out...
I didn't have have all that good luck with Super Glues either... not sure
why, but the several
FINALLY! Then REQUIRED answer!
That would make the 'two green dotted end' the CATHODE... right?
Thanks Roy.
At 07:20 04/06/2008, Roy Morris wrote:
The SMD LED chip that replaces R101 should be oriented with the two
green dots facing towards the front of the K3. Roy Morris W4WFB
Another advantage to being able to make this decision is that you no longer
have a doorstop when the manufacturer cannot or will not provide a
replacement for a defective display. Ask the guys who bought the first
generation IC-756s. Not to mention the additional complexity in the rig and
the
Tom and all,
That is quite contrary to my experience. The APP housings that I have
purchased (from both PowerWerks and West Mountain Radio) have dovetail
matings that need quite a bit of force to slide completely together, and
I lock them with a drop of SuperGlue. I never had one come
Just a comment on the APP connectors and roll pins. There are many ways to
solve the problem, some good and some not so good. Everyone that's used
them long enough will probably have tackled the disappearing roll pin
dilemma at one time or another.
Glueing them tends not to work because most
Another advantage to being able to make this decision is that you no longer
have a doorstop when the manufacturer cannot or will not provide a
replacement for a defective display.
Not to worry Elecraft will have the K3 display in stock for the
next 50 years.
This is crazy.
Who would ever want to use a connector with all the problems and care and
feeding of the APP's?
Something has gotten lost here. Imagine if you had to go endure all of this
for the AC plugs on all your household appliances?
Either the connector is no darn good or the problems
I wanted to look at the help file and instructions of v1.1.4.1. (no K3
attached)
Clicking on the ICON doesn't open a screen. It does start a process
according to task manager.
Click on the ICON again and the utility screen does open.
This results in two instances of K3UTIL.EXE running.
At 08:12 AM 06/04/08, you wrote:
This is crazy.
Either the connector is no darn good or the problems reported here are
greatly exaggerated.
Well said! It's fun to follow the threads and see just how far they
go though. I think G4ILO put an end to the 7.5 lb knob thread with
his comment
The first instance is probably trying to establish the baud rate of the K3.
Give it a few seconds if you don't have a K3 connected.
Dick, K6KR
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of K3KO
Sent: Sunday, April 06, 2008 7:27 AM
To:
Actually, the 'basic' APP connectors have few 'problems'... they slip together
nicely and if properly assembled, require little additional 'help'.
The discussion had to do with the perceived need to 'help' them by inserting
pins to keep them from coming apart, which is rare anyway.
I virtually
Julian G4ILO wrote:
In any event, ALC
should not have an effect on a laboratory IMD test since the two tones are
not varying in amplitude, unlike a real SSB or PSK signal. So the
laboratory
IMD test bears little relationship to the real world.
Perhaps. In the case of two constant level test
Sermos.
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Help:
hi ive just done ailgment and test part 3 on my new k3 sno 6436
and im happy to say all is working ok
im seeing good rf output ( 15 watts cw ) on all bands
( 10m max 12 watts ) im even getting 15w at 1.6mhz
better than my other k2's ive built so im well happy
so its on to build the other units
These conductive growths from metal plating were a
-severe- problem for early versions of GE 2-way radio's
MASTR II (sic) series of radios. The plated cavities that
held the tuned circuits for the RF front ends grew almost
invisible whiskers off the walls of the housing that were
astoundingly
Hello David,
Many thanks indeed.
Just what I was looking for.
73,
Roelof Bakker, pa0rdt
K2 # 6177
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That may be as you say.
However, if you wait, nothing ever happens. The hour glass disappears and
it stays in the process list.
One never gets a screen or anything else-- at least in ten minutes.
Presumably somebody having trouble getting his K3 connected to the PC would
see this same
Hi Jim,
You asked:
Any thoughts on the least expensive way to do this?
PC style electret condenser microphones can be had, new,
for under 5-dollars. Select the rear mic and turn on bias
voltage for it in the menu ... plug it in and go. It doesn't
get much less expensive than that! There've
John,
One important factor is how far away from the water's edge your antenna is
located relative to your frequency's wavelength. There was an extensive series
of articles in NCJ a few years ago providing details.
73,
Henry - K4TMC
**
Planning your summer road trip? Check out
Geoffrey Mackenzie-Kennedy wrote:
Julian G4ILO wrote:
The design of ALC systems is not a casual matter especially when dealing
with human speech, and the points which you raise have to be addressed by
the designer if the ALC might be used improperly. It would appear that ALC
systems
I'm sitting at my laptop... not connected to the K3... and the K3
Utility Program starts perfectly normally. No problems.
Perhaps you should try re-installing it???
73,
Ken K3IU
K3KO wrote:
That may be as you say.
However, if you wait, nothing ever happens. The hour glass disappears and
of articles in NCJ a few years ago providing details.
Anyone have the title/author of the NCJ article(s)?
Paul, W9AC
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If you watch the NASA videos, you will notice that the whiskers move, flex
and break very easily under slight air movements, subsequently the chosen
removal method was very simple .
I would suspect that a regular cleaning regime, using a can of compressed
air in one hand and a small vacuum
Curious if anyone has seen anything concerning Bluetooth and
interfacing with radios? With the convergence of laws requiring hands
free operation while mobile, and tools like Jawbone URL
http://www.jawbone.com/ it would seem like the next step.
Jawbone has a sensor that detects words coming
Hello David:
The diode in question has about a 1.6 V forward drop.
I've use that technique for a number of years with both Fluke and other DMMs
and it's always worked for me on red, yellow, green and white LEDs.
As I mentioned, it only works in 'diode check' mode. Ohms scales on modern
DMMs
The articles were titled Verticals By The Sea, by Al Christman, K3LC in the
July/Aug 2005, Sept/Oct 2005, and Nov/Dec 2005 issues.
73,
Henry - K4TMC
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Planning your summer road trip? Check out AOL
Travel Guides.
Hi
I see that some people on the reflector are using cyanoacrylic glue to hold
the pin
in the power connectors of their rigs. DO NOT USE this stuff unless you are
in
a well venilated place! It will do a number on your lungs in a hurry that
will be
with you the rest of your life.
I used this glue
FWIW, I've been using APPs for years with no problems at all.
I solder the wires and have not had a single breakage. As I mentioned
earlier, millions of connectors do that with no problem. The trick is to
avoid forcing the stiff portion of the wire to bend constantly or to force
one small area -
As has been pointed out, soldering connections that may
be subject to flexing is likely to result in failure, so here's
a suggestion regarding connections of antenna wire to
feed lines and insulators
There is an electrical connector sometimes referred to as a
split bolt or Kearney (SP?)
I looked for a Bluetooth Headset and found a BlueAnt X5 that includes an
Audio Streamer device that streams Bluetooth to a PC's audio connection.
I don't have one of these, but it appeared at first glance that it might be
able to connect to the microphone and speaker lines of a PC sound card, so
Hi All,
I think the problems have been exagerated. I have been using PP connectors
on all of my 12-volt toys for the past six years, with roll pins, both
soldered and crimped, without problems of any kind.
YMMV. 73, John, W2GW
- Original Message -
From: John [EMAIL PROTECTED]
Some of the folks who responded to my blog post, http://kb6nu.com/
OLD32/, entered links to various BlueTooth products for ham radio
applications.
73!
Dan KB6NU
--
CW Geek and MI Affiliated Club Coordinator
Read my ham radio blog at
Hi
I have found that the Cables Unlimited #USB-2920 works well with my K3. I
wanted a cable specifically USB 2.0 and Vista compatible. I have a XP
laptop and my desktop is Vista I also have a OQO palmtop that runs Vista.
This adapter looks somewhat like a flash memory drive with a USB
K3KO's response is the best I have read in this thread so far and I agree
100%. I have been using and putting up with these APP's for at least 6-7
years and have learned that I always crimp them using a cheap crimper and I
always solder them too. It took a while for me to learn (I am a slow
Back in the late 60's IBM was almost brought to its knees by a problem with
silver migration (whiskers) in its flat cable connectors. This happened
primarily in their System 360 Models 50 and 65 mainframes. It cost the
company many millions of dollars because every Model 50 and 65 plus some
Uranium and it glows in the dark.
Doug
W6JD
-- Original message --
From: Brett Howard [EMAIL PROTECTED]
There is no way that that knob could be 7.2 pounds. My wife (who I
mentioned this to and has too much time on her hands). Calculated that
if the thing was 2.5
Hi
I have been using these for several years and they are on all of my 12 volt
stuff. I mounted a 5 circuit RigRunner on my work bench that I can plug
into to power radios I am working on. I have used the roll pins but do not
use them any more. If you are careful to make the wires exactly
Let's end this thread for now.
73,
Eric WA6HHQ
Elecraft List Moderator
_..._
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Mode: cw, paddle sending string of dots or dashes any speed
power o/p: any, ie nil to max, dummy or antenna
filter: any, but more pronounced 1kHz
listening to side tone on phones or speaker
audio control: max
rf control: start low and raise until the artefact appears
or
rf: max
audio: low and
There is apparently some confusion about how the K3 ALC works. Just to
help muddy the waters a bit, I'll toss in what little I know about it.
We recommend setting the Mic (or LINE IN) Gain so you get 5 bars of ALC,
with possibly the 6th bar occasionally flickering, with CMP set to 0.
No,
I can't duplicate what you are describing here unless you are describing
the normal noise I hear between dits and dahs when using full QSK. I
hear no change at all in the sidetone at all. With FULL QSK, I do hear
the the background noise between dits and dahs which one might call an
artifact,
David, thanks for your help.
In addition to a potential problem with K17 (which I haven't yet checked
out), I pulled the KAT2 and connected the dummy load into the original antenna
jack. Could not get more than .2 watts no matter what I tried. Great. So,
this afternoon I studied the
If you have already signed up - please check this link and make sure I
have received your reservation for the correct number of dinners and
menu selections:
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If you have not yet signed up, then don't forget! You have until April
22nd to sign up, but now would be a
The noise blanker in the K3 is truly astounding. I find that to be really
effective on power line noise, I have to use the DSP portion of it. The IF
blanker alone will not do it. Unfortunately the DSP blanker distorts really
strong signals (say S9+10 and above). So if I listen to a group with
The effect is also present with monitor at zero. In this condition, a
rushing sound is heard. At a guess I would say it is digitally induced
noise.
Mode: cw, paddle sending string of dots or dashes any speed
power o/p: any, ie nil to max, dummy or antenna
filter: any, but more pronounced
Brett Howard wrote:
Well lets put it this way if you are in Europe and you buy an electronic
product its made with lead free solder unless its been on the shelf for
a good long while.
Or its intended for use in a server computer or as a network
infrastructure device.
--
David Woolley
The
For Sale: Elecraft K2/100 with KAF2 installed.
Included are unbuilt KNB2 and K6XX CW Tune with LED
indicator button. Serial number 6384, original owner
and recently built. 100% electrical, mechanical, and
physical condition. Asking $835 shipped USA.
73,
Ken, KA0W
I know I'm going to figure this out only *after* I break down and ask for
help ... but I gotta ask anyway I suppose.
I have the K3/100 and an MH2 microphone and I am measuring output power with
a calibrated scope across a dummy load.
I have been setting up audio gain and compression as
Hmmm. Your advice to:
...*please* set it to 4 bars in soundcard digital modes...
contradicts the direction given here (in step 7):
http://www.elecraft.com/K3/k3_operating_tips.htm#psk%20audio
viz. You should not see any ALC bars on the K3 display (when set to CMP/ALC)
This always confused me
1/
With regard to combining signals from different antennas ..
phased verticals feed by the same tx are used to provide directional
control of tx signal ..
could one phase combine signals from the 2nd receiver and signals from
the first ...
connected to different antennas .. (are the local
Don,
This issue is fixed (or closer to being fixed ;-) in the DSP and MCU
firmware that is currently in fled test.
73,
Lyle KK7P
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1/
...(are the local oscillators fed from the same clock ?)
Yes, they are fed from the same clock.
2/The reference input port on the k3 has a blank in it and I cannot
see any information on installation of the external reference
connection ...
This is for a planned future option.
73,
Lyle
In a message dated 4/6/2008 3:07:22 P.M. Eastern Daylight Time,
[EMAIL PROTECTED] writes:
Note: For PSK and other operation, you want to set things to the level
where the 5th bar just comes on -- or just doesn't. If you have only 4
bars in digital modes, that's OK. With less than 4, you
The suggested 4 Bar system does seem to work using SSB for the PSK.
Sorry for adding yet more confusion to the mix. I am running firmware
that is in field test and should be released next week. The statement I
made I believe to be true for the firmware I am running. I haven't gone
back
The K2/100 is sold.
Thank you,
Ken, KA0W
For Sale: Elecraft K2/100 with KAF2 installed.
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Is there any harm done using a mono to stereo adapter in the line out jack in
order to get the signal (no subreceiver installed) in both channels? This
will presumably short-circuit the right channel output on the jack. I am not
using any any of the pseudo-stereo modes.
Knut - AB2TC
--
View
Is there any harm done using a mono to stereo adapter in the line out jack in
order to get the signal (no subreceiver installed) in both channels? This
will presumably short-circuit the right channel output on the jack. I am not
using any any of the pseudo-stereo modes.
I doubt anything will be
Halos are slightly less than a half wave around in circumference. They
rely on the residual capacitance to be canceled by a gamma match, T
match, or utilized with an inductive stub in a beta match. The
feedpoint impedance and resonant point reflects the capacitance
between the ends
APPs are bad design, bad technology, just bad why?
1 the crimp or solder or buy a special tool or what facts as noted often
here.
2. need glue often what!!!
3. no strain relief.
4. no repeat use, can not be used again.
5. do not step on this plastic or u will need another set.
In a message dated 4/6/08 11:00:03 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
APPs are bad design, bad technology, just bad why?
What would you use instead? Particularly given the desire for a genderless
connector that can carry considerable current (20+ Amps)?
Not trying to
Hello All:
I'm really enjoying my new K3 #616. I've been getting everything hooked up
and exploring all the possible solutions to typical problems. Here's one
that I haven't seen answered here -
To run RTTY with MMTTY requires use of the one Com port on the radio unless
you choose to use VOX
Hi Jamie,
You can use the RS232 for rig control, and PTT/CW if you set it up
correctly. But you cannot use it for FSK. To key FSk you must build a
simple interface from a COM port to the ACCY connector. Se the AA5AU RTTY
website for the interface. Its a simple transistor and resistor...thats
Has anyone constructed a cable to interface the K3 to the Tokyo Hy-Power
HL-1.5KFX amplifier?
I tried making one today, connecting K3 ACC connector pins 13, 3, 9, 14, and
12 to pins 1 thru 5, respectively, of the amplifier's Yaesu band data
connector but the amp is not tracking band changes on
Good Evening,
The fan is still blowing on my K2/100 and Chamberlain has just signed the
Munich agreement. Momentous things are afoot. But I will attempt to stay in
2008 instead of 1938 for the moment! Conditions were very, very good on 40
meters just now. Tom and I worked many stations
Wayne,
A peculiar audio situation arose using my K3 in Aruba in WPX SSB. It
works the same way at home, and isn't a problem I've ever had with any of
many other radios that I've used in the same contest configuration.
Here is what happens: For phone contesting, I my software CQPWIN, which
I think the reason for including a filter (2.7 or 2.8) is that it is
REQUIRED for transmit. IF one was not included we would be forced to buy
one and people would be bitching about that.
I believe the better solution would be to offer a choice of the 2.7 or 2.8
and give the credit closer to the
From page 20 in the K3 Owners Manual -
...
LINE OUT
STEREO, transformer-isolated; 600 ohm (nominal)
These outputs should be connected to your
computer's soundcard inputs. The left channel is
main receiver audio;
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