Roy Morris wrote:
If it only takes 15 minutes to install the RFC 47 via the long method,
then I suspect this is a modification in a K3 without the KRX3. I used
the short method because I did not want to have to remove the KRX3 and
the TMP cables.
Another variation is to remove the top
Don Wilhelm wrote:
Stan Rife wrote:
I've been trying to decide whether or not to ask this question,
because I didn't want to appear too dumb. What exactly is the
advantage of diversity receive? Is it for weak signal work
specifically? Can someone give me a quick run down on this? I've
Greg Wrote:
Hi Gang:
Need help insetting up the TCXO 1ppm oscillator.
I was trying to get Method 3 to work in setting up the oscillator.
I can get to the menu CONFIG:REF CAL but when I tap 1 I do not get EWF
xxC. I assume tap 1 is the #1 key on the key pad? Any help will be great.
Ed
WA3BZT
Vic Rosenthal wrote:
Ken_ke2n wrote:
I do not want to bring up the pro's and con's of Farnsworth CW (discussed in
many many posts in the elecraft forum, but not specifically in the K3 area).
I would just mention that this is a pretty standard technique on
EME, to
deal with libration fading.
Ken_ke2n wrote:
I believe Ken's main point was that when code is stored in a K3 memory,
all the subtle articulation of hand sending is destroyed. On playback,
any extended spacing is forced down to a standard letter space.
This is a known problem, but fortunately there is also a quick fix:
Stephen Prior wrote:
This has been exactly my experience too. The MH-2 is superb and
regularly receives unsolicited reports of excellent audio. My only
criticism of it is that the ptt spring is too strong!
Cut about two turns off the spring. If that feels too light, stretch the
spring a
Dr. James C. Garland wrote:
Gang,
I?m pulling my hair out over an RF feedback problem with my K3/100,
and wonder if anybody has any ideas? I use an external station
controller that switches key, microphone, CAT, line in/out, etc. between
different rigs. The microphone audio connects to the
David Cutter wrote:
? Cheap RTVs such as used in bathroom sealant has a vinegar smell and
will attack copper. In a small confined space inside a radio that's
not good. In an open outdoor environment where the gas can escape it's
not such a problem.
The problems about confined space are
gd0tep wrote:
As some one who bought the K3 purely for it's RX performance on 6m, can
some one tell me once and for all if it is as good as, or better/worse
than, other radios like the Icom 756 pro etc... It was my understanding
from information provided that it was, is this not the case??
Curt Knight wrote:
So I wonder if there is an assembly error that might be a contributing
factor. What I'm looking for is some internal part that should be
grounded but isn't, or vice versa. Before I dig into it I'm hoping
that those of you with more K3 experience than I have can suggest a
Dale Putnam wrote:
Now that the votes are in, *g*... I want to add my 1/2 cent worth...
I looked diligently at the Hakko products, found the 936 series was
vere good.
Ran across the KADA line, found it was very comparable on most points,
but with a
couple exceptions... and they were better,
Joe Subich, W4TV wrote:
Not only does AB fail to transfer mode, CW in SSB does not work on
VFO B. Its time to fix the user interface to transfer mode with
frequency.
It's certainly high time for the auto pileup split option that most
other high-end rigs have had for years.
If this
Joe Subich, W4TV wrote:
Another useful option would be steps 1 and 2 only; or of
course none of the above.
My preference is to transfer frequency and mode only. Setting mode
should restore the last used filter settings for that mode and (when
VFO IND is implemented) I don't want A-B
Jack Smith wrote:
A few months ago, I looked at the power consumption and radiated
interference from a typical inexpensive CCFL. Also disassembled the
lamp to look at the ballast PCB.
Details are at http://www.cliftonlaboratories.com/compact_fl.htm
Jack K8ZOA
www.cliftonlaboratories.com
Nick-WA5BDU wrote:
Is the N1MM protocol for communicating with Winkey made public
anywhere? For us MCU programming CW enthusiasts?
As Simon says, it is actually Winkey's protocol for communicating with
any external application. Full details are given in the data sheets for
the Winkey 1 and
Joe Subich, W4TV wrote:
You have obviously not used N1MM Logger or Writelog as the user can
edit calls or other information in the entry window and have the update
reflected in macros already in process.
The aim is to respond immediately to the station that has just called.
Both contesting
Craig D. Smith wrote:
I will vote for the remote antenna tuner and a Syllabic Squelch.
AMEN! A weather resistant Elecraft remote tuner is at the top of my
list. Ideally one with a balanced topology.
An earlier priority should be support to allow *existing* external
antenna tuners to
Yes, a magnetized screwdriver is very handy for guiding the screws to
their holes without having to fumble with them. (There are a LOT of
screws!)
If in Europe, make sure to use genuine Philips-point screwdrivers. The
more common Pozidriv point will damage the screw slots when
Bob wrote:
True Pozidriv screws are not that common on this side of the
pond. But you may not want genuine Philips either. The true
Phillips head screws and drivers are designed to Cam Out to prevent
over tightening.To prevent that there are Reed and Prince or
Frearson head
Alan Bloom wrote:
The cool (pun intended) way to do it is to use a thermostat wired in
parallel with a resistor in series with the fan. The fan only runs at
full voltage when the heat sink gets hot.
The Astron SS-30 has a very noisy fan that is controlled by a thermal
switch on the
Simon Brown (HB9DRV) wrote:
Interfering with Buzzards is a serious crime in the UK, resulting in
prison / hefty fines.
A completely different bird from the American buzzard, by the way.
--
73 from Ian GM3SEK
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Post to:
Don Wilhelm wrote:
DOUGLAS ZWIEBEL wrote:
Methinks there is more afoot than meets the eye.
The announcement did *not* say that they did not meet standards, nor
did they say that the standards were too high - they did say that they
did not expect to meet the standards in production units at
Stewart Baker wrote:
All fine in principle, but here in the UK, nobody is enforcing the EMC
legislation.
It's true that nobody is enforcing it effectively against grey imports.
On the other hand, those are only a small minority of sales. The vast
majority of sales come from responsible
Bill W5WVO wrote:
This is probably slightly OT, but Ed's and Jim's comments prompt me to take
this thread further.
I can add my agreement to the generally poor state of the transmitters of a
few of the top contest operators on 6 meters during the recent ARRL contest.
Some of them you could
Doug Joyce wrote:
Having ordered a K3 at Dayton, I've been following the recent
discussion on DSP vs. Roofing Filter for bandpass width determination
with great interest. In that regard, I have a quick question - what is
the width increment available by adjusting the DSP. Based on some of
Brett wrote:
I agree that the 50Hz jumps do feel like much bigger schwacks in the
lower bandwidths but I don't feel them un-reasonably so... How narrow
do you wish things to get? 25Hz? 10Hz? 1Hz? Personally I don't know
what the right value is but I do think that 1Hz increments would be
N2EY wrote:
160 is the longest wave hams can use, hence it's the top band.
That's right - keep pressing BAND ^ and there it is, just above 50MHz.
--
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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Post to:
On Tuesday, Dick K5AND wrote:
Ciao, from CY0X, Sable Island.
[...]
Since it is so easy to switch out the outboard preamp, we have frequently
done this on some of the weak sigs just to see if we could still hear them.
In many cases we could hear them Q5 with just the internal preamp. Ian,
Brett Howard wrote:
On Mon, 2008-06-30 at 22:43 -0700, Carl Clawson wrote:
It's just too easy to miss the little blinking TX annunciator if you've left
your K3 in test mode. How about once in a while doing something more
dramatic like scrolling TX TEST across the VFO A display, or flashing the
Alan Bloom wrote:
On Sat, 2008-06-28 at 13:24, Ron D'Eau Claire wrote:
Maybe I'm speaking a Ham heresy, but I'd love to see the ability to
disconnect all the interconnected functions on the K3.
I'd love to see the K3 controls do ONE thing. That is, when I select
MODE:CW, I'd like the radio to
Tony Fegan VE3QF wrote:
Bill W5WVO wrote:
This is something I thought already behaved the way I want it to, but
it doesn't seem to. I've read through the manual, so if I'm missing
something, somebody please tell me.
If I'm copying a 6m CW signal in USB mode and switch the K3 to
CW(REV) mode
Eric Swartz - WA6HHQ, Elecraft wrote:
Looks like he clearly had a bad 500 Hz filter. It does not match our
measurements here or Sherwood's. We'll make sure the customer gets a
replacement.
We were not contacted prior to publication so we were unable to replace
it ahead of time.
Like the
Dave G4AON wrote:
For those who are RSGB members, see:
http://www.rsgb.org/membersonly/publications/reviews/index.php
The K3 review by Peter Hart has just been posted.
As it is copyright RSGB, so I can't quote much of it, but Peter
concludes with:
The K3 is an impressive
radio, which has
Lyle Johnson wrote:
I don't think this is a problem with K3 at all. All you need to do
for split operation is to start by pressing A-B when on the DX' TX
frequency. Now both VFOs have the same frequency and modes.
Not here: VFO B comes to the same frequency as VFO A, but NOT the
same mode
G4ILO wrote:
I doubt if that would be possible without redesigning the front panel -
unless it is possible to make the PF buttons take macros comprising
several key clicks.
That isn't necessary. As Lexa has correctly identified, I was thinking
of a firmware option that would do all the
Tom Childers, N5GE wrote:
Is it possible to receive on VFO B, and transmit on VFO A? If so, how?
Set VFO A to the RX freq, set it to the mode you want, tap the A B
button, tap the A/B button and swap the VFOs to make sure Both VFOs are
set to the same mode. Now hold the AB button for at
ab2tc wrote:
I don't think this is a problem with K3 at all. All you need to do for
split operation is to start by pressing A-B when on the DX' TX
frequency. Now both VFOs have the same frequency and modes.
Not here: VFO B comes to the same frequency as VFO A, but NOT the same
mode (that's
n4lq wrote:
It seems that without the compressor it is difficult to obtain full SSB
output. I'm listening to a guy right now on 160m in QSO. He had is
compression on and as can be expected, was picking up plenty of fan
noise from his amplifier. He was advised to turn off the
compression.
Charles Harpole wrote:
How about just using a good mic that is dead to its back and thus
leaves out virtually all fan noise?
That only means you don't have a big enough amplifier yet :-)
The main thing that reduces fan noise on the outgoing signal is
close-talking and turning the mic gain
Hello ALan
Good Morning Ian,
This could be a good short piece in RadCom
Been there, done that (or most of it) when the Editor asked for
something historical for the July 2003 RSGB Anniversary issue.
The information about 10MHz came along later, from amateurs who were
personally involved
Ian White GM3SEK wrote:
Hello ALan
Good Morning Ian,
This could be a good short piece in RadCom
Been there, done that (or most of it)
Sorry, that wasn't intended for the whole list.
--
73 from Ian GM3SEK
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Post
G4ILO wrote:
GM3SEK wrote:
What amazes me is the persistence of the belief that it's all because a
9MHz SSB generator and a 5MHz VFO produce opposite sidebands on 14MHz
and 3.5MHz. Anyone who can rub two numbers together can see that isn't
true... but that makes no difference at all.
WILLIS COOKE wrote:
It does not give the same sideband on 80 and 20. You also have to
consider that the rotation of the tuning capacitor of the VFO turns the
opposite direction for 20 as it does for 80.
The direction of tuning is not what inverts the sideband.
The only thing that inverts
Mike Harris wrote:
Hi,
Anyone else seeing a birdie on 28004.9+/-?
With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings:
-21dBV pre-amp OFF
-1.4dBV pre-amp ON
In either case the ATT makes only another -2dBV difference.
It doesn't display on the S-meter but given many
Lyle Johnson wrote:
Anybody been around long enough to explain the theory behind the use of LSB
on the lower bands vs. USB higher up? What is the advantage to doing so?
This is a classic detective story, with more than the usual share of red
herrings!
Early filter rigs used 9 MHz crystal
J. Edward (Ed) Muns wrote:
I agree with Joe's summary. Note that the 250 Hz 8-pole filter is
really about 370 Hz at the -6 dB point. Any of the current 500,
400 or 250 Hz crystal filters will be fine for RTTY. With any of
them, the DSP can be narrowed to 300 Hz without rolling off the
Frank Lammel wrote:
Joe Subich, W4TV schrieb:
After making extensive tests and plotting the selectivity curves of
the 200 Hz filter in my K3, I'm convinced that it is too narrow for
reliable weak signal RTTY operation, particularly in conjunction with
dual-tone filter.The measured
Stephen Wrote:
I'd be grateful for any feedback from UK amateurs as to their experiences
with the various shipping options.
When I last looked, UPS seems more expensive, but since USPS post goes
through Parcel Farce (intended 'typo'!) I would, in fact consider paying
more for UPS. Does UPS
George wrote:
The FAQ for the K3 promised a 0-50 ms amp keying delay. We got only
0-20 ms in the latest release.I don't think 20 ms is enough in my
case, based on my primitive research. Several experts have said mine
might need as much as 30-35 ms. My amp's relay is a 30 yr old Potter
Greg - AB7R wrote:
No lack of communication. :) Many people were asking for some amount of
adjustability. Up to 20mS is what Wayne could do and get it out quickly. I
believe he still plans to increase this but the code is going to be
more involved.
The item is still on the list.
David Cutter wrote:
Yes, the power cord parts are included with the K3 kit. This is one
item that will require your soldering iron unless you have a good
(ratcheting type) crimper for the Anderson PowerPole connectors and
know how to properly crimp the connectors.
73,
Don W3FPR
Lisa
Tom Childers, N5GE wrote:
On Sat, 19 Apr 2008 07:06:27 +0100, you wrote:
[snip]
It needs more than just a ratchet crimper - it has to be a hexagon
crimper of exactly the right size. Otherwise it's out with the soldering
iron, or pony up your $10.
I'm not sure what you mean by hexagon.
Like
David Lankshear wrote:
I just hope there's never a need to return a K3 module to Elecraft for
repair as that could well prove interesting. In theory, VAT would be
chargeable on the repair cost, return shipping and insurance as that's
the service provided,
That's correct. On the other
Tom, VK2OE wrote:
I wonder if someone was trying to use a very high stability external
oscillator with the K3, for example a HP Z3801A. Or maybe another GPS
disciplined high accuracy oscillator.Another interesting field for
experimenting. Tom, VK2OE
If you download the K3 Schematics
Ken Kopp wrote:
Aren't amateur radio related items duty-free in the UK and EU,
as they are in Canada? I became aware of this through extensive eBay
sales.
Most are free from import duty, or else it's only a few percent. The
killer is the Value Added Tax, which is 17.5% in the UK and even
Brian Alsop wrote:
Be careful. Most VGA cables are missing wire connections to various
pins. For example pins 4 and 11 are almost always missing. Pin 9
sometimes. I have one cable that has only 9 wires. These are not
unimportant pins to many of us. The fact that all pins are sometimes
W0JFR wrote:
Awhile back, someone mentioned that their club/group modified the Bose Quiet
Comfort headphones with a microphone. Could you provide a description of
this modification and a list of parts?
http://www.freewebs.com/k1dg/boseheadphonemod.htm
--
73 from Ian GM3SEK
Roger Marrotte wrote:
I guess as of now I'm out of luck if I want to use my amp with a K3. I
just checked the manual for my AL-811H and The open frame relay in the
AL-811H takes approximately 15ms to switch states. My K3 is on order.
I hope there's a K3 firmware change made before I get my
Please can Elecraft clarify if there is any plan to upgrade the KANT3
board to provide switching between two SO239 antenna sockets? (In other
words, the same switching as the KAT3 but without the auto-ATU.)
Soon, sometime soon, sometime, maybe sometime, probably not, or never?
The answer
G4ILO wrote:
Bill W4ZV wrote:
Does anyone in EU have any idea when Peter Hart G3SJX will publish a K3
review? Would be wonderful if he had one with all the various CW filters
installed for comparisons. Rob Sherwood is testing all now but has not
yet made the results publicly available (i.e.
Bill Tippett wrote:
GM3SEK wrote:
Those statements are incorrect in almost every detail.
Just to clarify, you are referring to G4ILO and not
me. I asked a question which G4ILO responded to. In case
any misunderstood the message header, it was G4ILO's comments
which followed mine.
Paul Christensen wrote:
I also find it is much easier to hold the REV button and tune the
VFO with one hand when working split on the Omni-VI than the K3.
That's one K3 limitation that I have not experienced with most other
transceivers. Of all the panel buttons, the placement of the REV
:33:12 +
From: Ian White GM3SEK [EMAIL PROTECTED]
Paul Christensen wrote:
I also find it is much easier to hold the REV button and tune the
VFO with one hand when working split on the Omni-VI than the K3.
That's one K3 limitation that I have not experienced with most other
DOUGLAS ZWIEBEL wrote:
I don't have a Bird watt meter or 'scope. I have an off-the-shelf
Diamond SX200 watt meter that is probably 25 years old. Here is what I
found:
0.5 watts on the K3 = 0.7 watts on the SX200 (5 watt scale, with 0.1
ticks below 1 watts)
5.0 watts on the K3 = 4.9 watts
Wayne Burdick wrote:
Rob Sherwood, NC0B, an independent and well-known receiver performance
specialist, has completed his K3 receiver tests. We're pleased with the
results, which will place the K3 at the top of his comparison chart.
Rob will be updating his web site in a few days. For now,
wayne burdick wrote:
Ian wrote:
Did Rob comment on pops and transients generated in the AGC and DSP?
That was the subject of his presentation at Dayton 2007, where he gave
many examples to show that New IF DSP designs [can] seriously
exaggerate transient noise on weak signals... Some DSP
wayne burdick wrote:
Lyle and I have been watching the discussion about SSB transmit
characteristics, and we're anxious to dig into the firmware and make
whatever improvements are needed. But Lyle is on vacation (reading the
mail from Spain),
Essential pool-side reading: 'Speech Processing
Dave Van Wallaghen wrote:
Ok - before I get another wise crack reply (which I deserved) ;-) I
meant to say ESD protection.
Gary, KI4GGX, gave me a good suggestion to just take the non-sensitive
stuff with me for inventory. That's what I was looking to do was
separate the hardware and non-ESD
Ron D'Eau Claire wrote:
Ian wrote:
The higher the reference frequency, the more accurately you can set the
TCXO
---
Is that correct? I don't know the details of Wayne's firmware, but the
accuracy of a synthesized rig is normally independent of the frequency being
received.
W5FTD wrote:
Let me ask this again.
Are you saying, that since the mixer signal is a multiple of the TCXO
freq
Multiple isn't quite the right word, but every synthesized signal in
the box is directly proportional to the TXCO frequency. If the TCXO is 1
ppm high, for example, then all
Alan Bloom wrote:
On every keyboard I own (both PC and Linux computers), the CAPS LOCK
key has been removed so I don't keep hitting it by accident.
A useful tip is to pack underneath the edges of the CAPS LOCK keycap
with one or two layers of sticky foam fixer pads. Use enough stiff foam
to
Wayne wrote:
Hi all,
I've just added the TX INH function and its associated menu entry to
the K3. Just in case you have no clue what this is: it provides a way
for an external station controller to determine which of two or more
transceivers can have access to resources such as an amplifier.
David Ferrington, M0XDF wrote:
I have a brain that passed the full license, it knows where not to go!
I got one of those brain things too, but by day 2 of a contest it needs
all the help it can get.
It would be really helpful to have user-configurable frequency points
where the rig will emit
Mike Fatchett W0MU wrote:
Or buy an adapter at radio shack...Gender changers.
Better still, make yourself a universal gender-changer/extension-cable.
Buy two male DB9 connectors for ribbon cable, and two female, then
squeeze them onto a foot of 9-way ribbon cable like this:
Ron D'Eau Claire wrote:
If you read the step or look at the illustrations you'll see what size
screw to use and exactly where to use PAN heads and FLAT heads.
Mixing up hardware will do more than produce an ugly K3, it can cause
short circuits, bent PC boards and a variety of other
Ron D'Eau Claire wrote:
Ian GM3SEK asked:
Are the different types of screws packaged separately in the kit?
---
No, the folks organizing the kit packaged the parts roughly by assembly such
a front panel, KIO3 Interface, etc. The assembly manual illustrated parts
list
Joe Subich, W4TV, wrote:
However, all three changes could have been incorporated in the K3 for
pennies in parts instead of requiring user modifications or add on
boxes with just a little market research beyond the tight-knit group
of insiders who do not push the operating envelope.
While I
Julian G4ILO wrote:
On Nov 29, 2007 7:36 AM, Ian White GM3SEK [EMAIL PROTECTED] wrote:
I'm aware of that option, but would only regard it as a temporary
workaround. Connecting a computer and reconfiguring the whole rig is not
the right way to handle a routine change of operators.
I imagine
Carl Clawson wrote:
I understand that there's a software utility that allows you to
save/load configurations to/from a computer. But it would be handy if
it were possible to save and restore a small number (somewhere from 1
to 4) of configurations in the radio itself. You could accommodate
Dick Dievendorff wrote:
By the time our K3 arrives, I'm hoping the firmware will
have easy access to stored profiles for 'His' and 'Her' audio EQ,
because those setting are quite time-consuming to change.
You can save configurations for his and her right now with the K3
Utility.
I'm aware
David Woolley wrote:
In IEE terms, the PME system is TN-C-S. The older system is TN-S.
There is a rare configuation (TT), used for rural overhead supplies,
where each house has its own earth electrode, but these are not
connected to the neutral, which is only earthed at the sub-station.
TT
Craig Rairdin wrote:
So I think the secret is to use a little more heat, prime the tip with
solder, make sure you're laying the edge of the tip flat against the
board, use a little pressure, and make sure you have contact with the
lead. Touch the tip if necessary to get the solder flowing.
David Woolley wrote:
[...]
The danger is that if commercial sellers try to find loopholes, in
closing the loopholes the legislators may restrict things that were not
previously restricted.
The more serious danger comes from within - from people inventing
restrictions where none actually
Julian G4ILO wrote:
On Nov 17, 2007 12:06 PM, Ian White GM3SEK [EMAIL PROTECTED] wrote:
Kristinn has it exactly right. The only thing that matters is what the
regulations actually SAY, so she quotes them word-for-word with no
Kristinn looks like a bloke to me... ( http://www.simnet.is/net
Julian G4ILO wrote:
Don't forget that, aside from CE marking, you are deemed to be
techniclly competent as an Advanced licence holder and can
therefore build your own kit and operate it within the terms of
your licence. You are right in saying that you can import your
own kit for your own use
Julian G4ILO wrote:
As soon as the documentation does comes into existence, the owners of
unmarked K3s will become legally entitled to attach a CE sticker
themselves. They don't need any documentation to do this; it is
sufficient to know that valid documents exist. They'll be in the bottom
of
Brendan Minish wrote:
I have just finished K3 ser # 39
As well as having an interest in HF/CW I am a keen 6m Operator and do
EME on 6m from time to time.
My antenna is a M2 6M7JHV at 60 feet fed with Ecoflex 10, in total about
120 Feet of feeder. I use no masthead preamp.I am in a quiet rural
Samuel Strongin wrote:
A discussion got started yesterday about mast-mounted preamps on 6M. As I
peruse the available products, it seems that something that
integrates with
the K-3 would be a nice Elecraft product offering. Of course all of the
other VHF-UHF bands matched to the
Wayne Burdick wrote:
The KBPF3 extends coverage to 0.5-30 MHz continuous, except for a small
gap right around the first I.F. (8.215 MHz). It has no impact on the
6-meter coverage (specified from 50-54 and tunable down to 48 MHz).
On the subject of 50MHz, Wayne, please could you say more
Wayne
wrote:
Ian White GM3SEK wrote:
On the subject of 50MHz, Wayne, please could you say more about the
receiver sensitivity specification?
At present the sensitivity spec is the same on all bands, namely:
-136 dBm (typical), preamp on, 500Hz b/w
Hi Ian,
The K3 is optimized for high
Rowland wrote:
Well I think I have the highest number K3 so far Nr 00036 arrived today 11/5
A big thank you to all those involved at Elecraft. Will get time later
this week to start the build.
So Elecraft is Shipping and not just to the US.
How did you fare with the duty, VAT and other
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