Jim Brown wrote:
On 5/16/2011 10:35 AM, Tony Estep wrote:
True of electrons, and other subatomic particles as well. For those who wish
to delve into quantum mechanics and find out what the uncertainty principle
actually deals with:
If you read a bit further down in Wikipedia with respect to
Stu2 wrote:
1) Make sure the paint on the inside of the case was removed in the
appropriate spots (connectors, joints, etc.)
A stainless steel scratch pen is your best friend -
USA:http://www.cooltools.us/Scratch-Brush-Pen-Style-Steel-p/brn-209.htm
UK:
Wayne Burdick wrote:
Note that the KX3 also has a jack for a keyer/paddle/handkey/etc. of
your choice. It can be used simultaneously with the attached paddle,
too.
Will the KX3 development phase be an opportunity to add more facilities
to the keyer firmware, and feed them back into the K3 as
tony rowland wrote:
time line for k-500 kit manual on the download list?
All Elecraft manuals are here, in date order (newest first):
http://www.elecraft.com/manual/?M=D
The KPA-500 preliminary assembly manual was posted a week ago.
--
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
Edward R. Cole wrote:
In my case, the major reason I don't want to sell internationally is
the matter of customs and duties, with the associated paperwork. Here
it's mostly ignorance of what is needed, what the procedures are, etc.
I might look at it differently with a ham I knew as the buyer.
Joe Subich, W4TV wrote:
All you have to do is write down the total value (in US$) and an
adequate description. AMATEUR RADIO PARTS is usually close enough.
That's all - you're done.
That works in western countries. However, anything containing radio
is automatically contraband in many
David Lankshear wrote:
I was just ordering Fred's book as a download, but stopped when lulu
decided to add VAT to the price.
Here, in the UK, books are exempt from VAT,
Sadly, that only applies to printed books.
[...]
G, just so others in the EU know what to expect.
Do expect to be
Stephen Prior wrote:
What I like best in 1.08 is the red tx marker which appears as soon as
split (or RIT/XIT) is implemented without having to command the P3 to
display VFOb.
Nice feature, and I like the use of shaded bars to display the RX
passband as well as the bright line for the TX
Ross Primrose N4RP wrote:
On 12/9/2011 6:09 PM, Jim Brown wrote:
If it is an automatic antenna tuner, that is less of a problem.
Except that the automatic circuitry, and it's power supply must also be
isolated from ground. That part of the design problem seems non-trivial.
Seems fairly
Don Putnick wrote:
I've seen what a difference in pitch can do. I used to be the code
guy in our ARRL VE group. Several applicants would flunk the Novice
code test because they said the ARRL standard pitch was not the same as
what they used when they were learning the code. Sounded like a lame
Jim Brown wrote:
On 12/13/2011 11:48 AM, Alan Bloom wrote:
Is that a valid assumption? I thought that much of the loss in coax is
due to the dielectric loss of the insulation. That implies that the
bifilar winding should have less loss than coax.
This is a very common misconception, and it
Eric Swartz - WA6HHQ, Elecraft wrote:
Also, with more vertical lines the waterfall covers a much longer time
period.
Will the waterfall also cover the same time period as at present, but
with better resolution of keyclicks and other transients? (That is
presently a major shortfall of the P3
Rick Bates wrote:
A short Google search found:
http://www.ifwtech.co.uk/g3sek/clamp-on/clamp-on.htm
Merry/Happy Christmas,
Rick WA6NHC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Faunt N6TQS
+1-510-655-8604
Sent:
Eric Swartz WA6HHQ - Elecraft wrote:
The keyboard usb port h/w has been tested, but needs additional
firmware to be written before we add the external keyboard feature. We
hope to have it live in the next several months.
Will there be a facility to export high-resolution image files via the
Eric Swartz - WA6HHQ, Elecraft wrote:
Will there be a facility to export high-resolution image files via the
USB port?
Not yet - Still at the current resolution. but we are looking at adding
that to the f/w.
Thanks, Eric - that's as much as we expect right now.
But longer-term, there does
Fred Jensen wrote:
On 2/10/2012 2:05 PM, Jim Brown wrote:
On 2/10/2012 1:39 PM, Ken Alexander wrote:
Amidon does not make this stuff. They are a distributor of Fair-Rite
and some other manufacturers, and NOT a good one. I'd bet there's no
one there who has a clue about anything technical.
F5vjc wrote:
I have just opened a Mouser account in France and ordered a quantity
of, 2631803802 = FT240-3 Fair-Rite.
I hope they're OK. Thanks for the tip on the weight data Ian, I'll
check them when they arrive.
You should have no problem, as Mouser are one of those dependable
suppliers.
Tom Cooch wrote:
I'm guessing a fairly high number of subscribers to this reflector
recognize the reference in your first sentence. I wonder what the
actual percentage is.
Tom KB1UG
I forwarded this to my friend GM4PMK:
: The rear of your transceiver is a maze of twisty little cables, all
dalej wrote:
I debated between the 2.1 and 1.8, I decided on the 1.8 and am glad I
did. This is the first radio I've had with a 1.8 filter that doesn't
sound like tweety bird on SSB. It is a good and tight filter while
still bringing in some good audio.
I used that same 1.8kHz Inrad
ai6ii wrote:
Impressive as the P3 Large Screen version is to look at, I wonder what
it is like to use. That is, with the P3 and mini screen, my eyes are
viewing the screen and the controls in close proximity. I can watch my
finger press the FN3 (set to center the MRK A), reach to the right
Does anyone in the UK have a P3SVGA yet, please?
Please reply by e-mail.
--
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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Help:
Joe Subich, W4TV wrote:
The problem with optional features is that they take development time
for the benefit of a very small number of users and get in the way of
larger projects that benefit the larger group.
That is a very important point - but development priorities are decided
by
John Lemay wrote:
Good morning all
I raised the issue of noise coming from my P3 several months ago.
It is noticeable on 2m, using an EME array that is about 50ft from the
rig. There is a combination of azimuth and elevation in which the array
looks directly at my shack and under those
Geoffrey Mackenzie-Kennedy wrote:
Evening Fred,
If the pipe is OPEN at its ends, would not the current flowing on the
outside of the pipe fold over at the end of the pipe and continue to
flow on the inside skin? The reverse, if you like, of the situation
where a coax feeder is used to feed a
Fred Jensen wrote:
I appreciate this thread. I too am both nearly deaf, and even with
level and frequency correction, I can't understand someone speaking
behind me. My loss occurred all at once from an RPG explosion one
night, and I've been told the rocks on your hair cells are gone so it
Don Wilhelm wrote:
I use the same type hearing aids.
Probably not exactly the same, because Phonak is a brand name (Swiss)
offering several different models, each available with a number of
different earpieces, and then of course a vast range of programming
options.
Talk with your
Craig Smith wrote:
I certainly understand the impracticality in terms of cost and size of
designing the basic KAT500 with a large number of output ports. My
personal wish is that an optional external Elecraft unit will
eventually be available that will allow for port expansion based on the
Pete Smith wrote:
I recently repaired a KIO3 board, replacing U1 to restore serial port
operation. It worked, but in the course of doing the job it was
annoying to contend with the circuit board skittering across my work
surface. Now I have another KIO3 to repair, and I'd like to avoid the
Rick Dettinger wrote:
You can take my K1 when you pry it from my cold, dead fingers!
Since 'Men In Black', we have to be more careful about that line:
--
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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Stephen, you are a saint! I'd have gone back with exactly what he
deserved.
I'm guided by 'Zen and the Art of Motorcycle Maintenance'. The K3 is
one great radio, but the snap crackle and pop (even with the built-in
speaker) put my teeth on edge, it's as simple as that. It's like a
loud
Ron D'Eau Claire wrote:
Mike, I certainly concur with Eric's observation. What I thought was
very unusual was that you said that the hum would come and go, which I
presume happens when you aren't doing anything at the amp.
Hum that comes and goes for no apparent reason might be caused by some
Ron D'Eau Claire wrote:
They also didn't do much except make us feel better. Ferrite core chokes
actually DO something useful. The cracked balun was poorly designed, so
it overheated. That's a DESIGN mistake, not a defect of ferrite cores.
73, Jim K9YC
Why would you think that? Properly
Tony Estep wrote:
I believe that reflector participant Ian GM3SEK is an audio engineer,
You're maybe thinking of Jim, K9YC.
(I couldn't even play an audio engineer on the radio, and most people
think that my musical instrument already makes too much noise.)
--
73 from Ian GM3SEK
As Jim Brown says: if all these problems came on suddenly, focus on what
parts of the installation have CHANGED.
You may well have identified one:
Right now I am thinking that I have a bad coax line outside of the
house. The reason for this is that I had a new propane tank installed
and
Alan Bloom wrote:
On Fri, 2011-10-21 at 22:24 -0500, Gary K9GS wrote:
Anyone??
On 10/19/2011 9:58 PM, Gary K9GS wrote:
So, if I was going to purchase a monitor, say 23-25 diagonal, what
should I look for besides the 1920 X 1080P resolution?
Pixel response time? 5ms seems to be the
Don wrote:
...]
1) fixed green wire problem
2) unearthed coax and it is laying on the ground on the top of the
grass
3) build choke with 31 mix at antenna out on the tuner
4) moved PC
I am on the air.
To do when the order shows up from UPS.
Install new coax, I assume the one I have is not
Don wrote:
Well the suspect coax has been replaced and the problem lives on.
Now I have no idea on what to do to get rid of the problem.
I think its common mode on the coax but now I am not sure. I have to
walk away for awhile and think about what to do next.
Clamp-on RF Current Meter!
At
David Ferrington, M0XDF wrote:
Pity the won't ship the the UK ROSH compliance I guess.
Why do you want to ship an FTDI-based USB adapter from the USA? They are
available from local vendors in every major country, and they're all
functionally identical because they use the same FTDI chip.
drewko wrote:
I agree with Don-- use some pattern-based system. To me this seems much
better than a scheme which relates the numerals printed on the keys to
the corresponding bands. A geometric pattern seems better.
If you have another rig close by that has clearly labeled band buttons,
make
Lee Buller wrote:
I run legal limit on some contests. I seem to burn up USB to Serial
devices. I am grounded properly. I am suspect of these things in high
RF fields. But...what is a guy gonna do when RS232 Serial ports are
totally discontinued. Turn down or turn off the amp. Hmm!
VK7JB wrote:
I've been reading the discussions about RF and common mode current and
using a clamp-on RF current meter to sniff out common mode current in
the shack. I've checked the calibration of my MFJ 854 and am surprised
that it's calibrated quite well: I measure 1A of current measured
Al Lorona wrote:
1.8 kHz is deemed better than 2.1 kHz, and 1.5 kHz is deemed better
than both.
But at some point intelligibility itself suffers because you start to
eliminate the signal you're trying to copy in the first place.
I for one suffer from a type of listener's fatigue when forced
Jim Brown wrote:
On 11/10/2011 8:34 AM, David Gilbert wrote:
there is so much
atrocious splatter from crummy rigs or ignorantly adjusted rigs during a
major contest
YES, YES, YES.
that it is truly rare to find such a narrow filter
actually being helpful. I also would trade my 1.5 KHz
Alan Bloom wrote:
I agree with all Ian's comments except:
Almost any ani-static mat and wrist strap will be OK
My testing has shown that not all anti-static mats are created equal.
In particular, the Radio Shack portable mat P/N 276-2370 has much too
high a resistance to be effective. Here
Tom W8JI wrote:
I guess I can build external attenuators/preamps, but I would rather
use the internal.
That's funny - those same words are exactly my reason for wanting to
keep the preamp/attenuator settings independent, and having them *not*
track.
As we so often see, there are valid
Wayne Burdick wrote:
I use B SET to adjust preamp and other settings when using diversity.
And using B SET is about the most cumbersome operation imaginable to
simply check (or set) subrx preamp.
Macros?
With great respect, macros are not the answer to every usability
problem.
Macros are
Wayne Burdick wrote:
Joe Subich, W4TV wrote:
Remember, IMD is driven by total *peak* signal level. The peak signal
level is not simply the scalar sum of the levels ... it is a vector
sum as the individual signals add in phase.
And those peaks could be slightly modulating the AGC loop.
The original concept of ALC was devised by Collins engineers as part of
their development program for speech processing. Speech clipping
flattens the peak amplitude, but also introduces some splatter which
then has to be filtered out - but the filtering re-introduces a small
amount of level
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