Hi all,
Please be aware that because of the WPX contest this weekend it has been
decided to cancel this weeks net. The net will be on again next Sunday (4th
April) as normal.
73 and good luck in the contest :)
Ian
--
Ian J Maude, G0VGS
SysOp GB7MBC HB9DRV-9 DX Clusters
Member RSGB, GQRP
Maybe I've missed it or forgotten where it was but is it documented
somewhere what the RX performance is with and without the KBPF3? I've
seen where it says that you get 500Khz-30Mhz and 48-54Mhz but it then
says KBPF3 required for general coverage But how wide are the ham
band filters and
I find this (that there must always be ground continuity across and
isolation transformer, and that one end of the secondary must be
connected to neutral) unlikely. There are at least five circumstances
in which this doesn't apply under UK regulations, and I am pretty sure
that the same
I have a K1, K2, K3 and TS-480SAT. I always use the internal keyers in
them and find no issues with the way they key, Elecraft and Kenwood
internal keyers seem very similar to me. I use Iambic B with a weight of
1 (from the K3 menu in front of me). The only radios that I've had an
issue with
John,
I think you may owe Guy an apology.
He's agreeing with you on how good the K2 tuner is and how others may not
fare as well.
I don't see any criticism of your comments at all.
73,
Bob W5OV
-Original Message-
From: elecraft-boun...@mailman.qth.net
G'day,
I use mode B in both my K2 and K3. However, If I try to use mode B
with my microHAM CW KEYER I usually end up messing it up and when
you mess up you worry about messing up so mess up even more! At
this point I give up. Fortunately the K3 enables me to plug in both
but I lose the
Dave,
An isolation transformer *does* isolate the neutral (and the hot), but
does *not* isolate the green wire ground - and for safety, it should not.
73,
Don W3FPR
David Woolley (E.L) wrote:
I find this (that there must always be ground continuity across and
isolation transformer, and that
Good Morning:
I just ran the TX gain calibration and it fails on 29 MHz at both the 5 and
50 watt power levels indicating an SWR of 2.1:1. I checked the SWR manually
and indeed it is indicated at approximately 2:1 at 29 MHz. I manually
checked all bands and 24.9 MHz is indicating an SWR of
Gregg, at one time I had this problem with bandpass tuning on 40
meters. I would get in touch with K3 support for guidance on touching
up bandpass filter tuning. I don't believe I've ever seen tuning
instructions that published for a K3. They told me what to turn and
in what order to flatten it
Are the elecraft boards American made?
I had a ham friend tell me they were not. But he does not know anything about
elecraft. Plus he is telling me I would be better off to buy a $1400 kenwood
that had everything. I think the quality and support of elecraft is far best of
any radio out there.
First, I don't believe this is off topic.
Second, I believe Wayne has stated before the boards are made 'just down the
road' from Elcraft's Aptos HQ.
Third - imho the K3 is a far better rig - but then I'm biased.
73 de M0XDF, K3 #174
--
It is unwise to be too sure of one's own wisdom. It is
I am playing in the contest today. I have had two instances where my
receiver gain has gone down dramatically. It sounds like I have switched
to the second antenna with nothing attached. Engaging PTT brings it
back. I installed the second receiver and DVR a week ago. Has been
working fine
When tuning across an AM station there are clicks and cracks, seems
to be on even kHz. On my radio it has been from day one. Is this
normal or is my radio faulty? I use latest FW. / Jim
Jim,
When tuning near a very strong continuous carrier, you may hear a
small AF artifact at points
Thanks Guy. Cc'd support
73
Gregg
-Original Message-
From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger
K2AV
Sent: Saturday, March 27, 2010 10:29 AM
To: Gregg W6IZT
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Calibrate TX Gain error
Gregg, at one time I
Lets see if his questions about the design and operation of that $1400
Kenwood are answered by the designer. I see that Wayne has just
answered a question about the K3 and tuning strong AM signals. He even
answered it on a Saturday morning!
Mark AD5SS
On Sat, Mar 27, 2010 at 11:00 AM, David
Saturday afternoon here !
Elecraft's service is second to none, I've only found one other vendor to be as
good and that is Dog Park Software, creators of MacLoggerDX (logging for Mac
OSX and other software).
:-)
73 de M0XDF, K3 #174
On 27 Mar 2010, at 16:18, Mark Bayern wrote:
Lets see if
Chris wrote: I am sticking with the K3/100 when I order it.
Good choice Chris. Elecraft and Elecraft Support are like the Marine Corps
saying: The difficult we do immediately. the impossible takes a little
longer.
73, Fred, AE6IC, K3 2241
Gregg W6IZT wrote:
It seems to me that all this points to the lowpass filter in the K3 for
12/10 meters. I can do a physical check for a bad cap or cold solder joint
I would visually inspect the 10/12m BPF very carefully, especially looking
for a bad solder joint on any toroids (i.e.
Hi Chris,
From
http://n2.nabble.com/Are-K3-boards-built-overseas-tp4609367p4609378.html
(a post by Lyle Johnson, an Elecraft employee)
Component parts come from all over the world.
Parts are placed on the PCBs, soldered, and tested all in California.
73
--
Joe KB8AP
On Mar 27, 2010, at
David
The onboard tuner is pretty handy and fast tuning. I have a couple 1KW
size outboard manual tuners but still use the K3's often. If you don't
contest much and don't plan to record off the air the KDVR3 might be
overkill. Last I heard, KDVR3 won't stream rx audio to an external
device
On 3/27/2010 9:02 AM, Ron W3ZV wrote:
I am playing in the contest today. I have had two instances where my
receiver gain has gone down dramatically. It sounds like I have switched
to the second antenna with nothing attached. Engaging PTT brings it
back. I installed the second receiver and DVR
Hoo boy! I know about this one. I actually sent my rig back to
Elecraft for repair when it was happening to me. Imagine my chagrin
when my backup rig started behaving the same way.
73
--
Joe KB8AP
On Mar 27, 2010, at 10:44 AM, Vic K2VCO wrote:
On 3/27/2010 9:02 AM, Ron W3ZV wrote:
I am
That motto was attributed to the SeaBees (Construction Battalion). They could
kluge anything while under fire. If they were not getting shot at they got
bored :)
Kevin. KD5ONS (whose father navigated to more than one of their strips
across the vast Pacific)
-Original Message-
I had these symptoms (with another radio) and eventually tracked it
down to a corroded junction where a saddle clamp joined parts of the
linear loading wire on my short 40m beam.
Dick, K6KR
Sent from my iPhone
On Mar 27, 2010, at 10:44 AM, Vic K2VCO v...@rakefet.com wrote:
On 3/27/2010
On Sat, 27 Mar 2010 10:20:09 +, David Woolley (E.L) wrote:
I find this (that there must always be ground continuity across and
isolation transformer, and that one end of the secondary must be
connected to neutral) unlikely. There are at least five circumstances
in which this doesn't apply
On Sat, 27 Mar 2010 09:32:12 -0400, Don Wilhelm wrote:
An isolation transformer *does* isolate the neutral (and the hot),
NO! This is a summary of NEC (National Electric Code) requirements: The
NEUTRAL of a transformer on the secondary side MUST be bonded to the
equipment ground (steel
Besides the K3 there is a long list of other possibles, but since you
WERE into the cables inside the K3, if all those mini-coax connectors
did not get seated correctly...I found that a little tricky and there
is a certain feel to it when they go in right and seat solid. That an
unrelated
NO! This is a summary of NEC (National Electric Code)
requirements: The
NEUTRAL of a transformer on the secondary side MUST be
bonded to the
equipment ground (steel conduit, the green wire, building
structure, etc),
and that green wire must be carried from the breaker panel
to each
But Jim,
The secondary of an isolation transformer is fully isolated - i.e.
floating AC. The fact that the neutral of the transformer input side is
bonded to the green wire ground is quite a different thing. A proper
isolation transformer has no relationship to neutral on the secondary
side
I need to connect my amplifier fl2100z with K3, direct connect to key out to
RY the amp FL2100Z or I have to put a relay, please i need help and thank you
very much.-
LU1XS, Oscar
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Home:
I'm planning to install a sub receiver eventually. Now I need a CW
filter. I'm considering buying two now, matched, with the second for
later use with the sub receiver.
I understand that the 5-pole filters need to be matched, but have the
impression that the 8-pole filters do not.
Is that
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Har, har, Tom...
Transitive Verb:
Infinitive
*to discretize*
Third person singular
*discretizes http://en.wiktionary.org/wiki/discretizes*
Simple past
*discretized http://en.wiktionary.org/wiki/discretized*
Past participle
The CQ WPX contest will probably make the band conditions pretty
lousy for the net tomorrow. Therefore, the net will not be run this
week. We will meet again on Sunday, April 4, 2010 at 1800Z on 14.314
MHz. Have a good contest, or whatever you do.
73,
Phil, NS7P
This is one of those areas where the term isolation transformer can take
on a different meaning and conform to a different set of compliance
standards, depending on whether it's located before or after a receptacle.
UL 1950 appears to allow for full isolation of the neutral on the isolation
I understand that the 5-pole filters need to be matched, but
have the impression that the 8-pole filters do not.
Is that right? If so, I only need to buy one filter now
The 8-pole filters are described as having a nominal 0 offset and do not
need to be matched for diversity. However, my
Oscar,
Looking at the FL-2100z schematic (*** NOT *** the original
FL-2100B) shows that the relay line is about +18V DC. You
should be able to use Key Out directly but since there
are multiple relays involved, I would recommend a buffer
like the Ameritron ARB-804 or an intermediate relay
On Sat, 27 Mar 2010 16:09:36 -0400, Tom W8JI wrote:
NO! This is a summary of NEC (National Electric Code)
requirements: The
NEUTRAL of a transformer on the secondary side MUST be
bonded to the
equipment ground (steel conduit, the green wire, building
structure, etc),
and that green wire
Radio Amateur N5GE wrote:
What does the word discretized mean?
I always consult The World's Foremost Authority for such questions:
http://www.videosurf.com/video/professor-irwin-corey-at-the-cutting-room-nyc-53354277
:-)
73, Bill
--
View this message in context:
On Sat, 27 Mar 2010 15:09:02 -0700, Ed Muns wrote:
However, my 400Hz 8-poles are offset by as much at 80Hz.
I've observed that too.
73,
Jim K9YC
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On Sat, 27 Mar 2010 15:09:02 -0700, Ed Muns w...@msn.com wrote:
I matched all of my 8 pole filters by using the NGEN noise generator
and setting them for matching white noise pitch.
It seemed to work for me.
TOM, N5GE BT
73 ES GUD LUK
AR DE N5GE SK
[snip]
The 8-pole filters are described as
Oscar,
I don't know the specifics of your particular amplifier - BUT -
The K3 KEYOUT can handle up to 200 volts DC (positive only) at 5 Amperes.
You can easily measure the requirements of any amplifier with a DMM.
First set it to read voltage and measure the open circuit voltage (to
the
On Sat, 27 Mar 2010 15:21:07 -0800 (PST), Bill W4ZV
btipp...@alum.mit.edu wrote:
Interesting. It's not found in the Oxford English Dictionary,
http://www.oup.com/, which I believe is the standard. It appears in
Wikipedia which anyone can add content to...
Thanks for the link to the Professor
As an admitted Elecraft junkie, I just had to add the K144XV to one of my
K3s to see what it would do. This K3 is now maxed out with everything you
can put in this little box except for the crystal oven. Even though the
instructions had construction points to assemble the K144XV, I found most of
OK, this has caused me to consult the American Heritage Dictionary, and
it defines 'discrete' as 1) Constituting a separate thing; individual;
distinct. 2) Consisting of unconnected distinct parts.
I believe the secret implication is caused by confusion with the
adjetive 'discreet' - Having or
Hi Guys,
I've never posted to this group before but I decided to put in my 2 cents
regarding the Grounding Mat discussions. Seems all y'all making this way too
scientific..but maybe I'm missing something
For a grounding mat I simply used the anti-static bag the RF board was
Try using google:
Results 1 - 10 of about 2,180,000 for numerical discretization.
There are lots of words that are not in common lay usage but which
nevertheless exist and are functional parts of the English language.
Come on, guys, get a life!
John Ragle -- W1ZI
discrete vs discreet -- lads, it were a joke...
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Stan,
Welcome to the Elecraft reflector.
Your techniques may have been just fine, but only time will tell. The
insidious thing about ESD is that it can partially damage components,
which shortens their life. The fact that they do not fail immediately
does not mean that your anti-static
Differences between discrete and discretize: Latter is a transitive verb
belonging to the engineering/mathematics/physics world (and perhaps
beyond). It would be difficult to discrete something. To Discrete
does not exist as a transitive verb.
Your intent may have been to comment privately,
Good Evening,
Nothing like cutting, hauling, splitting, and stacking a face cord of wood
to show yourself you are out of shape! Five t-shirts later I have a goodly
pile of wood and have just finished dinner. The sun has set but I may be
asleep before it gets dark. Luckily I have enough
See http://en.wikipedia.org/wiki/Discretized - a wonderful source of
information.
Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-321-1516
http://WilcoxEngineering.com
Williamsport, PA 17701
Bill W4ZV wrote:
Radio Amateur N5GE wrote:
What does the word discretized mean?
I always
With so many words in the English language I wonder why some of the
new ones are coined. I am not an expert on FFT and higher math, but
would someone please explain to me what discretize signifies that is
not covered by quantize. Some definitions of quantize follow.
Quantize - approximate (a
Watch out using a steady-state meter to measure amplifier
currents! The 2100Z is a good example of a very odd circuit.
The FL2100Z has positive relay voltage. It has a peak relay
closure current surge of about 500-600 mA (that settles
lower) and about 16-18 volts open circuit without much
Tom,
You are correct, peak currents are difficult for the average amateur to
measure. So perhaps a rule of thumb might be that the steady-state
current should be no higher than 500 ma. would be good for the K3 - I
doubt that peak currents would exceed 5 A if there is only 500 ma
See http://en.wikipedia.org/wiki/Discretized - a wonderful source of
information.
Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-321-1516
http://WilcoxEngineering.com
Williamsport, PA 17701
Bill W4ZV wrote:
Radio Amateur N5GE wrote:
What does the word discretized mean?
I always
On Mar 27, 2010, at 7:13 PM, David Christ wrote:
I am not an expert on FFT and higher math, but
would someone please explain to me what discretize signifies that is
not covered by quantize.
The word discrete in DFT refers to discrete time samples, and not to the
quantization of the
Hello everyone,
Putting together K3 SN 4094, and running into the following problem when
trying to complete the 5 watt transmitter calibration procedure from within
the K3 Utility. Please see text below for the response from the K3
Utility. Any thoughts? As you can see, I tried running the
Forgot to mention in my original post, the rig was shipped with the most
recent firmware already installed (MCU 3.79/DSP 2.54)*.*
*
*73 de Al, KE1FO
-
Check out my Amateur Radio Contesting blog at ke1fo.wordpress.com.
On Sat, Mar 27, 2010 at 11:28 PM, Alfred Frugoli ke...@arrl.net wrote:
Hi! Friend,
Thank you very much for information I'm trying my k3 a week ago, I'm happy
with this toy .-
good life friend
LU1XS, Oscar
- Original Message -
From: Tom W8JI w...@w8ji.com
To: d...@w3fpr.com; oscarv...@speedy.com.ar
Cc: Elecraft@mailman.qth.net
Sent: Saturday, March 27,
Make sure you're not in TX TEST mode
~Brett
On Sat, 2010-03-27 at 23:28 -0400, Alfred Frugoli wrote:
Hello everyone,
Putting together K3 SN 4094, and running into the following problem when
trying to complete the 5 watt transmitter calibration procedure from within
the K3 Utility.
Hi, folks, I just installed the KXV144 in my K3 and all went smoothly --
it even works, after a fashion. I have this one teensy problem...
...it's not transmitting on the frequency (simplex) it says it's on.
I know about setting ALT for -/+ or simplex, I've got the ADR set to
internal
If your PC has a centronics printer output, you could setup a
photo-isolator switch.
Then build a Free-Basic executable to toggle it from the web?
There are LED-photo-isolator switches that will handle 120VAC also.
Just a thought
N1BBR
--
bw...@fastmail.net
Kevin Rock wrote:
That motto was attributed to the SeaBees (Construction Battalion). They
could kluge anything while under fire. If they were not getting shot at they
got bored :)
Kevin. KD5ONS (whose father navigated to more than one of their strips
across the vast Pacific)
I've
Don Wilhelm wrote:
OK, this has caused me to consult the American Heritage Dictionary, and
it defines 'discrete' as 1) Constituting a separate thing; individual;
distinct. 2) Consisting of unconnected distinct parts.
Don't know what the problem is here, we hams have verbified, nounified,
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