Thanks to all that have replied in trying to help me!
There was just a new download posted from Elecraft K3# for (3.66). This
seems to have taken care of all the problem I was having. The radio is now
sounding much like a Superb SW receiver in its
sound. I will be testing it on AM as well as
Good morning all
Almost finished putting the K3 all together but last night I did notice while
putting the NB board on the 8th pin from the left was missing. I ended up
plugging it into the main board but will wait to find out if this is
intentional or defective before I power up the unit.
Think you have that pretty much sorted Jim. I have an 8 pole 250Hz roofing
filter in my 2nd rx as I thought it would be good for 'mult-hunting' during
contests but in reality hardly ever use it.
Not sure how important it would be to insist on a matched 2.7KHz filter
either. Because the bandwidth
Greetings,
When it was time to put the bottom cover on over the LPA unit I found the cover
did not fit all that well. Seems one of the power transistors was sitting a bit
high. With some playing I was able to get the bottom cover on but still
wondering if anyone else had this trouble? I
I find it both fascinating and nearly elementary when I read about
problems and questions about wall warts. The little packages were a
surprise to me when they first appeared, and I had to buy some extra
extension outlets to plug them into, making sure that the darn
extensions had a switch
I believe one powerful motivation for the outboard supply approach is
that it exempts the manufacturer from having to put the entire
assembly through the various safety and regulatory processes (UL,
CSA, CE, etc.). He can instead put the regulatory burden on the
subcontractor who furnishes the
Ken,
Answer 1: The slope number refers to the AGC action, and that is the
inverse of the audio response. If charts are helpful to you, Jack
Smith has measured and plotted the AGC response for the K3 - see
http://www.cliftonlaboratories.com/elecraft_k3_agc_and_s-meter.htm#AGC_SLP_and_AGC_THR
Jerry,
Since U4 does not carry any RF signals, a socket there would not be a
problem, other than reduced reliability because of socket contact
failure. Use a good quality socket for longer trouble-free operation.
73,
Don W3FPR
n0jrn wrote:
Gang:
I'm in the process of replacing U4 on the
Many of the ones we find in the UK emit copious amounts of RF
interference. Although they are CE marked, we suspect that this
only stands for - China Export.
73
Stewart G3RXQ
On Wed, 09 Dec 2009 07:01:05 -0600, Randy Farmer wrote:
I believe one powerful motivation for the outboard supply
I also wondered about that. The slope of a line (the ratio of vertical
to horizontal displacement) is flatter for lower values. But in the K3
a smaller SLP value means a steeper AGC curve (the AF output changes
more for a given change in RF signal). SLP=0 really means least AGC
action, not
Well, according to the K3 schematic, pin 5 of the connector shows 'no
connection'. This would be the 8th pin from one end.
Bob NW8L
On Wed, Dec 9, 2009 at 4:14 AM, Mike Weir ve3...@hotmail.com wrote:
Good morning all
Almost finished putting the K3 all together but last night I did notice
VE3WDM wrote:
Greetings,
When it was time to put the bottom cover on over the LPA unit I found the
cover did not fit all that well. Seems one of the power transistors was
sitting a bit high. With some playing I was able to get the bottom cover
on but still wondering if anyone else had
That certainly helps me a lot, I have been struggling with K3 AGC
settings and this helps a lot, I don't remember seeing this posted
before.
So thanks to Don for posting the link and many, many thanks to Jack
for making it clearer.
I just need to read that a few more times now.
73 de M0XDF,
I hope to be building a KPA100 myself in another month or so. How does one
distinguish a good quality IC socket from a less-than-good one? Is there
something apparent to the naked eye?
Thanks and 73,
Ken
--- On Wed, 12/9/09, Don Wilhelm w3...@embarqmail.com wrote:
From: Don Wilhelm
I have found so many different adjustment parameters for AGC in K3 that I
would apperciate AGC settings for dummies type of instructions. :)
I previously owned IC-756PRO3 which can be used as reference of well
functioning AGC among DSP radios. Very pleasant experience.
Olli
OH6CT
Ken,
It is not something that is apparent just by looking. It has to do with
the contact material and the plating. Is the material springy enough to
retain tension on the IC leads? Is the plating of sufficient depth to
withstand many removals and insertions? Questions of that nature can
Don,
Gold embrittlement is still a problem, and we have a chem egr dept
that spends a great deal of their time analyzing gold plated parts to
determine if we need to either slim down the gold plate or possible
dip the IC's to avoid these issues.
Matt
W8ESE
Olli,
I don't think it is so difficult that one needs AGC for dummies. If
you want every signal to have about the same audio level, then set the
slope to a higher number, but if you want to hear that a strong signal
is louder than a weaker signal by ear (without looking at the S-meter),
then
Please be careful about selecting budget outlet strips. I know our
conditions are not identical with those in the U.S., but there have
been a number of fires down here caused by cheap outlet strips.
Adding to the safety concerns, someone had mentioned using a short Radio
Shack extension cord
Thank you to all who replied to my help note. First thing Monday
morning elecraft emailed me and the problem is solved. I should know
better than to think I can understand the menue system right away.
Hi Hi.
R Thorpe KD6LAZ/AE
__
Gentlemen,
I truly love this reflector and my sincere thanks to Jack Smith of
Clifton Labs for this interesting piece. The ultimate user manual for the
K3 might rival Webster's in its weight.
73 Doug EI2CN
-Original Message-
From: elecraft-boun...@mailman.qth.net
clsar...@gmail.com
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Please help support
Seriously, this is tounge in cheek right? For a long time I've
thought the Kenwood TS-2000 was the worlds ugliest radio
but then the Sienna appeared! Looks like a WWII Russian
tank radio. No offense to our Rusian friends.
Doug
W6JD
- Original Message -
From: Al Lorona
Hi
How must be K2's variable-bandwidth crystal filter in/out impedance (W2,W3
points) with
FL1 1.5 CW choosen?
Thanks in advance
Sergey
4Z5TV
--
View this message in context:
http://n2.nabble.com/K2-Crystal-filter-impedance-tp4141621p4141621.html
Sent from the Elecraft mailing list archive at
Most WW2 Russian tank radios were the 19 set, a British design
manufactured in Canada and supplied to the Red Army under Lend-Lease.
That's another two friends who won't take offence :-)
Pete G4PLZ/F5VNB
Seriously, this is tounge in cheek right? For a long time I've
thought the Kenwood
Is someone tried on K2? If YES, what kind of settings you are using on K2?
Thanks
7S7V
Wes Stewart wrote:
I second all of this. I've been using one since June.
--- On Mon, 11/23/09, Jim Brown j...@audiosystemsgroup.com wrote:
From: Jim Brown j...@audiosystemsgroup.com
Subject:
Sergey,
I believe the crystal filter is designed for 150 ohm termination - at
least that is the input termination used with the -5dB post mixer
amplifier pad, and since the IF filter is symmetrical, its input and
output impedances should be the same.
The design point for the variable filter
I ordered mine through Full Compass. With shipping it was $48 but they are
out of stock and don't expect to be able to ship until after the first of
the year.
Bob W6TR
- Original Message -
From: sm7vzx 7...@tele2.se
To: elecraft@mailman.qth.net
Sent: Wednesday, December 09, 2009 1:48
www.zzsounds.com has them in stock for 59.95
Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
www.w9dvm.com
800-395-7795 pin 02
727-944-3226
FAX 727-937-8834
NASFT 30210
K3 #1605
CCA 98 00827
CRA 1701
W9DVM
-Original Message-
From:
As someone posted before, they are here for 38.00 free shipping,
they are not a stocked item but if you order they say about a week
to ship them. Cheapest I have seen so far.
www.bhphotovideo.com http://www.bhphotovideo.com
73 Merv KH7C
www.zzsounds.com has them in stock for 59.95
Philip
I had them on watch at BH and received an email about a week ago that they
are no longer stocking them, but will handle as special order. Don't know if
their price has changed.
Gary
--
KJ7RT
Sun City, AZ U.S.A.
Life Member ARRL - FISTS #14460 - NAQCC # 3709
Elecraft K1 #2760 Elecraft K2
Is the DSP blanker input level also subject to AGC?
Hardware AGC - yes; software AGC - no.
73,
Lyle KK7P
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Post:
The price hasn't changed. Still free shipping. I ordered one on 12/4/09
shortly after I got their email and it is still listed as on backorder.
73,
Ken K3IU
~
Gary W. Marklund wrote:
I had them on watch at BH and received an email about a week ago that they
are no
The DSP NB causes some artifacts at its higher settings.
Note that the DSP NB works by signal substitution while trying to
maintain frequency rather than just blasting a hole in the signal stream.
73,
Lyle KK7P
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Elecraft mailing
Several of my previously listed items have sold. The transverter and Heil
Proset are still available at lower prices:
1. Elecraft XV50 6m transverter. Less than 1 yr old. Like-new condition and
works very well. $325.00 (was $350.00)
2. Heil Proset with HC4 element. That's the
Don Wilhelm wrote:
I don't think it is so difficult that one needs AGC for dummies. If
you want every signal to have about the same audio level, then set the
slope to a higher number, but if you want to hear that a strong signal
is louder than a weaker signal by ear (without looking at
A few questions about the W2 meter:
1. The posted accuracy is +- 0.5 dB which I calculate as about +- 12 %. Is
this full scale accuracy and if so is half scale possibly more accurate or is
this the most accurate the meter is likely to be. I am not even sure if it
makes a difference for full
Phil,
With each LED representing 100-watts on the 2KW scale, it may be of some
help to go from 10% to 5% in accuracy, but in the case of the W2, the
display resolution is limited to 50-watts in between mid power ranges (e.g.,
250-watts) but a display of 200-watts with two LEDs showing may
I am brand new K3 owner, unless I have missed something in all my research,
cannot find a program to manage memory via the PC. I surely hope I am wrong,
currently using a TS-480, the Kenwood utility is simple and does a great job
of running the radio via the PC including uploading downloading
Hi Greg,
We'll be adding this function to our K3 Utility program at some
point. We'd be happy to get your input on it.
73,
Wayne
N6KR
On Dec 9, 2009, at 5:24 PM, w4grj wrote:
I am brand new K3 owner, unless I have missed something in all my
research,
cannot find a program to manage
Paul,
Thanks for your comments. And, in followup, if Elecraft were to make
a meter with reasonably high accuracy I presume that another display
method, other then LEDs, would be required. I think a high-resolution
LCD with nice color graphic renditions of power information. OK, sort
of kidding
It's kinda' hard to beat numerical digits when you want the best possible
resolution displayed. By the way Phil, I should re-phrase my earlier
statement when I referred to a resolution deficiency. I really meant to
imply a resolution limitation. There's nothing wrong with that form of
Phil,
The W2 wattmeter is similar in its detector accuracy to the Tandem Match
(by John Grebenkemper KI6WX) in that its accuracy depends on matching
the detector diodes with the compensation diodes.
The Gold Standard of power measuring devices is the HP436A wattmeter,
and it has a stated
Suggest you look at the Kenwood control program RCP-570 for the TS-480. In
addition to memory management, it makes it very easy to control the radio in
addition to filter management and IF shift, DSP control, etc.
http://www.kenwoodusa.com/Support/Amateur_Radio/#_
wayne burdick wrote:
Hi
I've followed this thread concerning a QSK clicking noise through all
comments, as well as other similar threads on the list, but it doesn't
appear as if anyone ever came to a firm conclusion as to origin of this
clicking noise. As others have stated, I can hear a very faint mechanical
clicking
Within 0.5 dB worst case of the actual power being measured. Not of full
scale.
We actually do much better than that.
73, Eric
Phil Hystad wrote:
A few questions about the W2 meter:
1. The posted accuracy is +- 0.5 dB which I calculate as about +- 12 %. Is
this full scale accuracy and
We'll be making a number of improvements to W2 firmware in future
releases (starting in January). Firmware updates are very easy to do
on the W2, and the required serial cable is supplied.
For example, the last LED segment illuminated will be able to show a
range of intensities (from off to
i found i was having some random clicks going on but they went away
when i moved my hps-1 power supply a few inches away from the k3.
73
jim ab3cv
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Help:
And take a look at HP's note AN64
(cp.literature.agilent.com/litweb/pdf/5965-6630E.pdf), particularly chapter
VII. After that, the question about whether more resolution is necessary or
meaningful might be moot.
--- On Wed, 12/9/09, Paul Christensen w...@arrl.net wrote:
You asked the
Don:
All I've done is read the spec sheet, but Minicircuits has a relatively
new sensitive termination wattmeter with USB interface for a quite
reasonable price, at least by Agilent standards.
http://www.minicircuits.com/pdfs/PWR-6G+.pdf -- it's a virtual
instrument as it consists of the
Thanks for the update Wayne - do you srill anticipate the first version of
the PC software to be available this week?
73 Bill nz0t
wayne burdick wrote:
We'll be making a number of improvements to W2 firmware in future
releases (starting in January). Firmware updates are very easy to do
Wes,
Thanks for the link to what looks like a very interesting document. Just what
I have been looking for. And, thanks to others for the suggested resources.
phil
On Dec 9, 2009, at 7:01 PM, Wes Stewart wrote:
And take a look at HP's note AN64
I am in the process of building my K3 kit SN:3700. I am at the
configure synthesizer step; I am getting ERR VCO displayed in the VFO
B portion of the screen and E 5 in the VFO A portion of the screen.
Does anyone have any recommendations on how to correct this and clear
the error?
73,
Jack,
At $700 I will stick with my W7ZOI power meter with its 40 dB power tap
and my Tandem Match! I have calibration data that Bob Friess provided
on my Power meter from 1 MHz to 500 MHz (and ham band intervals in
between). The Tandem Match tracks that data quite well in its basic
I used some plastic tubing stuck in one ear trying to track it down. I
narrowed it down to one relay but it's been at least 6 months ago and I
can't recall which one made the noise. I had suggestions to check for loose
ferrite chokes along the high current DC line but that wasn't the source. If
http://www.zerobeat.net/mediawiki/index.php/K3_BSR-SM_Version_7
By popular demand there is now a new 32 bit installer for K3 Band Stacking
Registers w/S-Meter. The original VB installer is actually simpler for the
computer but has some file naming limitations and the user needs to know where
Thanks Steve.
It's sure strange that I get the same click whether I run 1 W, or 100 W. I
could understand some sort of residual magnetic effect (for lack of a better
term) causing some mechanical movement to create the noise if it was only
present while running high power, in which case high
Seriously, this is tounge in cheek right?
Doug
W6JD
No, not at all! I find refreshing a rig that is not trying to look like
consumer hi-fi stereo equipment. And wasn't it just a few days ago that real
aluminum knobs made more than a few Christmas wish lists?
Color can convey a lot of
...I would accidentily bump the VFO-B knob.
Is there any reason why the VFO-B knob could be not be deactivated...
Happens to me, too.
Fortunately, I found that 'lock' will work for either VFO.
Go to 'BSET', hold 'LOCK', and presto - problem solved!
And RIT/XIT still work for both linked VFOs.
A
I'm honestly curious. What bullseye is that? What features or
performance does it offer that other rigs don't provide more cheaply? I
looked over the specs carefully and I simply didn't find it. The
colorful panel??
73,
Dave AB7E
Al Lorona wrote:
the bullseye that it does hit is
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