Dick,
This could be the KIO2 cable inside the K2, running from the serial
connector to the control board.
If it sags down, this will cause that kind of hash because it is too
close to the receiver circuitry.
Keep this cable as close to the topcover as you can.
73
Arie PA3A
-Oorspronkelijk
The new Elecraft pricing has just gone into effect. Its up and live on
the order page.
~BTH
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Post:
A quick look at the circuit diagram shows that buttons are taken from a
potential divider to CD74HC4051M inputs. These switches (unless I've
misread the diagram) will therefore take the input current of the
multiplexer which is typically 1uA. I don't know the spec for the Elecraft
switch but
Hi Karl,
Yes, both check out fine with my MFJ-269
Thanks for the suggestion.
KARL MARDERIAN wrote:
Hi, n6xvt Karl.
1 is the cable from radio to dummy load good?
2 is the dummy load any good?
73 n6xvt
Sent from my iPhone
On Sep 22, 2009, at 6:41 PM, W4HDM w4...@bellsouth.net
Arie Kleingeld PA3A-2 wrote:
Dick,
This could be the KIO2 cable inside the K2, running from the serial
connector to the control board.
If it sags down, this will cause that kind of hash because it is too
close to the receiver circuitry.
Keep this cable as close to the topcover as you
Arie Kleingeld PA3A-2 wrote:
Dick,
This could be the KIO2 cable inside the K2, running from the serial
connector to the control board.
If it sags down, this will cause that kind of hash because it is too
close to the receiver circuitry.
Keep this cable as close to the topcover as you
Hi All,
I've had my new K3 up and running for about a week after replacing the DSP
board during assembly due to the 5vdc rail being shorted to ground. The
S-meter shows about S-2/3 noise and there is about an equal level of noise from
the speaker. I have an IC-756ProIII sitting beside it
I had the same issue with my newest K3, so I had a basis to compare to another
K3. Wayne put on his phone engineer hat and designed a circuit mod that reduced
gain to an IF transformer, a resistor change. I can't imagine this kind of
service from any other company - amazing.
Since then they
I don't see it yet on the download page and I thought I read that it would be
available by early this week.
73, Bill nz0t
--
View this message in context:
http://n2.nabble.com/K3-3-33-Beta-did-I-miss-it-tp3707050p3707050.html
Sent from the [K3] mailing list archive at Nabble.com.
The wife gave me the green light to replace our Whirlpool Duet washing machine,
aside from the terrible interference it put on HF, she was not happy with the
rinse cycle, it was leaving soap in our cloths -and- they were not getting
clean.
My decision, to abandon high efficiency front load
I don't see it yet on the download page and I thought I read that it would be
available by early this week.
Ongoing pre-beta testing revealed some weaknesses that needed strengthening.
73,
Lyle KK7P
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Home:
I missed it too Bill
NZ0T wrote:
I don't see it yet on the download page and I thought I read that it would
be available by early this week.
73, Bill nz0t
--
View this message in context:
http://n2.nabble.com/K3-3-33-Beta-did-I-miss-it-tp3707050p3707096.html
Sent from the [K3]
On Thu, 24 Sep 2009 15:18:33 +, Jim Harris w...@q.com wrote:
Hi All,
I've had my new K3 up and running for about a week after replacing the DSP
board during assembly due to the 5vdc rail being shorted to ground. The
S-meter shows about S-2/3 noise and there is about an equal level of
On Thu, 24 Sep 2009 08:58:42 -0700 (PDT), Don Rasmussen wrote:
The wife gave me the green light to replace our Whirlpool Duet
washing machine, aside from the terrible interference it put on HF,
she was not happy with the rinse cycle, it was leaving soap in our
cloths -and- they were not
My Kenwood front loader which is about 12' from my rigs is RF quiet.
N2TK, Tony
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Rasmussen
Sent: Thursday, September 24, 2009 11:59 AM
To: elecraft@mailman.qth.net
Subject:
On Thu, 24 Sep 2009 06:46:05 -0700 (PDT), Julian, G4ILO wrote:
Some have found that it is important to have continuity through the
cable shielding from the K2 right through to the computer.
Yes, and also to use twisted pairs for each signaling circuit between
computer and radio. See
That's OK guys; I am sure the next one will be far more lovable. Lyle
is already giving it lots of TLC...
:-)
On Sep 24, 2009, at 9:23 AM, AD6XY wrote:
I missed it too Bill
NZ0T wrote:
I don't see it yet on the download page and I thought I read that
it would
be available by
On Thu, 24 Sep 2009 12:44:11 -0400, N2TK wrote:
My Kenwood front loader which is about 12' from my rigs is RF quiet.
Proximity to your RIG doesn't matter. What matters is proximity to your
ANTENNAS.
73,
Jim K9YC
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Elecraft
I would consider this a whole lot less OT than a lot of things I read.
I found it very valuable. There seems to be a site for nearly everything
on the internet anymore. A valuable site would be one that hams would
participate in and list items that are clean and don't interfere with
the radio
Just thinking about this. Is it across all HF bands RF type pickup? Or is it
band specific? Is it only when the drum motor is running or is the RF noise
there all the time the washer is on?
Is the noise being picked up from the shields of the coax - do you hear the
RF noise if you disconnect the
Hello!
Just in case you are in the western North America and still need grid DN25 on
6m,
I wanted to let you know that K7VK, K7PX and I are planning to head up to 7800'
Bare Cone Mountain in the Bitterroot Range on Monday September 28 for an
overnight
6m Terrestrial Propagation Mode mini
Jim,
What is the URL for the RFI reflector please? I need to belong! If one
makes a mistake and gets something that generates radio noise it can
take hours and hours to try and cure the problem. Some of the problems
are nearly impossible to cure as the basic design makes it prohibitive.
On Thu, 24 Sep 2009 11:51:44 -0500, W0SD Ed Gray wrote:
A valuable site would be one that hams would participate in and
list items that are clean and don't interfere with the radio spectrum.
I agree. There IS a very good email reflector devoted to ham RFI. Access
it through contesting.com
Thank you all for your response. The hash is no longer heard. As
PA3A suggested, moving the inter connect ribbon cable up and away
from the main K2 RF board solved the problem.
Appreciate your consideration.
73
Dick AD1G
Begin forwarded message:
When running KComm, on the K2 as a logging
David G3UNA, wrote:
A quick look at the circuit diagram shows that buttons are taken
from a
potential divider to CD74HC4051M inputs. These switches (unless I've
misread the diagram) will therefore take the input current of the
multiplexer which is typically 1uA. I don't know the spec for
N6XVT/Karl,
No need for you to bring your K3. Just bring your portable shortwave
reciever. I think ever Ham should own one. It is so great for hunting
down interfearance of all kinds.
73 N6XVT
Sent from my iPhone
On Sep 24, 2009, at 9:51 AM, W0SD Ed Gray w...@triotel.net wrote:
I
I lost a PC power supply, ordered a pair of replacements from Tiger
Direct. They were neither half-KW monsters nor their cheapest supply. It
had VDE/UL/FCC stickers, ALL of the agency certifications.
Suspecting a line surge had killed the original supply I decided to
stuff some MOV at the input
I remember having this problem with an old Advantest Drift-o-matic spectrum
analyser at Uni. The buttons stopped working because the plastic let out
some oils and this coated the gold and stopped the contacts working. I am
not saying this is what has happened to Elecraft, I am sure that problem
Oops, that's a KenMore. Also some have asked what model - HE4T - 110-4508.
It is a few years old.
As my wife was using it this afternoon I checked all bands with both my
receive and transmit antennas. My antennas are no closer than 150' from the
house.
73,
N2TK, Tony
-Original Message-
Bill,
I have had good success with PC Power Cooling supplies. Have replaced all
of the cheaper PC supplies with theirs. Got rid of the noise.
http://www.pcpower.com/index.html
N2TK, Tony
-Original Message-
From: elecraft-boun...@mailman.qth.net
I have had good success with PC Power Cooling supplies. Have replaced
all
of the cheaper PC supplies with theirs. Got rid of the noise.
http://www.pcpower.com/index.html
N2TK, Tony
THIS kind of information is invaluable. I had a stash of common mode
chokes and line-certified capacitors so added
On Thu, 2009-09-24 at 13:08 -0600, William Carver wrote:
...
It had VDE/UL/FCC stickers, ALL of the agency certifications.
...
It seemed pretty clear the supplies had passed agency approvals with the
filter components in place, but once they had the sticker they stopped
putting those parts on
On Thu, 24 Sep 2009 11:56:59 -0500, W0SD Ed Gray wrote:
What is the URL for the RFI reflector please? I need to belong
Join via contesting.com
73,
Jim K9YC
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I installed a 350w PS from Antec in one of my computers and the noise
disappeared.
One other computer, I installed a Corcom 6EF1 RFI module at the AC input and
that cleared up the computer hash on 30m. This drove me nuts for about two
years as I was hearing this warbling hash going up and down
I've bought the parts for several high-end computers from Tiger Direct
and haven't any problem with power supplies (or much of anything else,
for that matter), but I always buy the power supplies made by Ultra (a
solid brand name) because I like their modular cable system. Ultra even
offers
going for glorosio for 17 meters while split ...
I think i'd much prefer the front of the two concentrics to be AF
main ( bottom) and AF sub top
as I find myself constantly reaching behind to change the level of
the sub channel while hunting ..
someone recently suggested a
At 02:08 PM 9/24/2009, William Carver wrote:
I lost a PC power su
filter parts missing from production power suppliesprobably after
agency certifications.
RSGB's magazine has been on this issue for many months with pictures etc
I believe that they had not much concern from their OFCOM
Yes, and it has been getting updated with more increases during the day.
I'm waiting for some eBay auctions to close Sunday so I can order my K2.
I had hoped we would get some warning when the date was firm, crap :-( .
Gary
KJ7RT
Brett Howard wrote:
The new Elecraft pricing has just gone into
The MFJ-1026 will cure it. You only need a simple external antenna near the
noise source. Phase that kind of noise out.
Cheers,
Don
Hi Don
I know what you were going thru as my next door neighbor has a Kenmore
front-loader (made by Whirlpool, I think) and I hear the RFI on my radio and I
AD6XY wrote:
My K3 has sometimes had problems with switches too, but only rarely. My K2
is much worse in this respect.
Have we found any user applications for the connector on the bottom of the
panel yet?
At least on the K2 with it's bouncing switches it is not only a known
problem,
The power supplies sans the RFI filter were to repair a computer that's
now gone. I might be able to find the second supply that I never used,
but it's old business. Honestly there is so much of this coming over
that the FCC couldn't cope with it all even if it happened yesterday.
Cutting corners
At 06:54 PM 9/24/2009, .k8dd. wrote...
At least on the K2 with it's bouncing switches it is not only a known
problem, especially with the A/B and A=B switches, but you can fairly
easily
replace them - I changes out about 20 of them on my two K2s.
K2 switches are readily available from Mouser and
On Wed, 2009-09-23 at 08:26 -0400, Don Wilhelm wrote:
That sounds like your K2 may have 2 problems.
1) It is going into transmit immediately after power-on
I've had this happen in SSB mode with the VOX turned on because the mic
was picking up a steady noise (such as a computer fan). It's easy
Can someone tell me where to find Beta release 3.27? I've looked on the
Elecraft fpt site and see version 3.3 and the Old Beta folder the numbers
stop at 3.19. I've refreshed the browser but still don't see what I'm
looking for.
Thanks,
Chuck NN7U
Tom,
So-called EMI/RFI filters are typically differential-mode devices (i.e., there
is an L/C filter in each side of the AC line). Noise generated by switching
power supplies is, at least in my experience, usually common-mode. Differential
mode RFI filters won't do a thing for it. Get a big
Bill,
In the UK it is the case that many SMPSU's have, once CE certification has been
obtained
been manufactured in volume with the input filter parts omitted.
These are in the main imports from Tiawan and China.
These non-compliant PSU's have been brought to the attention of our regulator
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