[Elecraft] DATA-A tx freq offset with digital modes

[Graham Alston]

Hi,

I’m very new to Elecraft and K3S so hope this is not too obvious….

I have a K3S connected to my PC with audio tones coming in via MIC IN (in 
reality the K3S is the remote end of a K3-Twin remote setup).

When I use DATA-A sub mode for CW, the transmission is 600Hz higher than the 
VFO frequency. I assume this is because DATA-A transmits on the USB and the VFO 
shows the suppressed carrier frequency?

I want my CW signal to match the VFO, how can I do that?

73, Graham VK3GA

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Re: [Elecraft] Portable Ops with KX3 along with KXPA100

[Edward R Cole]

I operated from temporary locations (often in a wall tent) from 
remote Alaska on 80 & 40m SSB with a radio and ac PS powered by one 
of the 600w Honda "lunch box" generators.  Never had any radio noise 
problems.  We went out with long ext cords to get the engine noise 
away from the radio.


I have a 6500w electric-start Honda as emerg backup power for the 
house and no radio noise.  Engine runs very quiet as well (has its 
own "doghouse" near the commercial power meter box to which I ran 
wiring via conduit using a 200amp transfer switch).  I believe is 
uses a alternator with true sine wave. Cost me $4K.


I just put in service a 50v - 50amp switching PS for my 6m QRO 
amp.  I ran three wraps of the 50v wiring thru a toroid donut and 
used a couple clamp-on ferrites on the 240vac leads to block 
RFI.  Absolutely no 6m electrical noise in the K3 only 5-feet from 
the PS.  You could do the same with the ac leads from a noisy generator.


Generac is an old name known for supplying farm power; cheap in cost 
and not a lot of engineering.  I'd buy the Honda!


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] K3S - Storing Configurations for Operating Conditions

[Don Wilhelm]

Bret,

Other than writing down all the menu and configuration settings, that is 
the only way I know of.


73,
Don W3FPR

On 9/21/2016 7:51 PM, MaverickNH wrote:

Thanks for an off-list suggestion to use the K3 Utility, which seems a decent
idea. Would that be the recommended way?



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Re: [Elecraft] K3S - Storing Configurations for Operating Conditions

[MaverickNH]

Thanks for an off-list suggestion to use the K3 Utility, which seems a decent
idea. Would that be the recommended way?



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Re: [Elecraft] Running stations with k3

[Ron D'Eau Claire]

Most of the "cans" I used in the 50's had a flat metal disk diaphragm that
vibrated in the field of a pair of magnets behind it. They had a pronounced
"peak" in their audio response in the 1 to 1.5 kHz (kc/s to be
period-correct) range. 

I, too, often just laid them on the table while working around the operating
room at K6USA (Ft. Ord Army MARS station).

The R.O. on the SS Californian used to wind up his magnetic detector and
listen to traffic from his cans laying on the operating table while he fell
asleep in his bed after his shift ended for the night. They estimate it was
just a few minutes at most after his detector wound down and the signals
went quiet before the CQD/SOS started blasting out from nearby MGY (SS
Titanic). That's why she never responded.  

73 Ron AC7AC


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred
Jensen
Sent: Wednesday, September 21, 2016 12:20 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Running stations with k3

OK, this is probably a good place to ask:

When trying to copy a weak-ish signal in noise and "other stuff" in the
50's, one of my crewmates at the coastal marine station told me to lay the
cans on the desk, face up.  It works.  I don't know why, maybe someone here
knows.  Surprisingly, I generally didn't need to turn the gain up much if at
all.

The receiver I used most on our HF frequencies was a brand new Collins 51J4.
The military version was the R-388A.  It had 6 and 3 KHz mech filters, and a
separate, adjustable crystal filter.  Did not cover 500 Kcs which was
particularly noise and full of signals at night, however the trick worked on
those receivers too, so it wasn't just the mech filter.

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

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Re: [Elecraft] OT: K2

[Tom McCulloch]

As a K2 only owner I appreciate when the posters reference the equipment 
they are posting about in the subject line (e.g. "K3"). This helps with 
auto sorting.



Tom, wb2qdg

K2 #1103


On 9/21/2016 1:29 PM, Thomas Taylor wrote:

On Tue, 20 Sep 2016 18:35:27 +
Eric J  wrote:


I had recently stopped monitoring the reflector as I only have a K1 and
two K2's. Everything is K3 and subject lines rarely reflect that anymore
so it's hard to filter them. But I had a K2 problem and rejoined. Got a
response with solution within an hour! And discovered that I miss the OT
discussions from a unique bunch of experts. Most of the OTs are
interesting and more relevant to a non-KX/K3 owner. So I'm back to
monitoring only OTs. hi.

The new products don't fill any need in my hamming that isn't satisfied
by the K2, but the ongoing development of the state of ham art at
Elecraft is extraordinary to see.

Eric KE6US

On 9/19/2016 8:05 PM, Ron D'Eau Claire wrote:

P.S. Us K2 owners are rather quiet these days. I suspect few are still
monitoring the reflector. I miss the many questions about soldering,
testing, setting up an antenna, etc. But time, and products, moves on..


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This reflector has helped me on several occasions.  Most recently I got Don
Wilhelm's (W3FPR) name as a possible repair person.  I had an incomplete K2 (2
years uncompleted) which he completed, tested, and aligned at a cost which I
consider quite good and in a speedy manner.

I finally got some ham friends to help install a vertical antenna (I'm in a
wheelchair) and am now beginning to learn how to use the K2.

My thanks to Don and others on this list who have offered help and advise with
problems as they occurred.

73, Tom Taylor  KE7TT



--

I don't wear a watch because where I am is where I want to be.
I don't carry a cell phone because who I'm with is who I want to talk to...yep 
I'm retired!

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Re: [Elecraft] Running stations with k3

[Walter Underwood]

> On Sep 21, 2016, at 11:33 AM, Matt Murphy  wrote:
> 
> In terms of the phase shift introduced by filters, I assume the distortion
> introduced by the filter is commensurate with the steepness of the skirts?

When designing an analog filter, you can optimize the amplitude response
(Chebyshev or Elliptic) or the phase response (Bessel), or a compromise
(Butterworth).

Digital filters can optimize both the amplitude and phase response (FIR),
but they add delay in the time domain.

Once again, no free lunch in physics.

The textbook for my analog filter class was “Analog Filter Design” by
M. E. Van Valkenburg. Filters are designed by computer now, but the
math should be pretty much the same.

http://dea.unsj.edu.ar/sredes/Biblioauxi/260360960-Analogue-Filter-Design.pdf 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

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Re: [Elecraft] Running stations with k3

[Fred Jensen]

OK, this is probably a good place to ask:

When trying to copy a weak-ish signal in noise and "other stuff" in the 
50's, one of my crewmates at the coastal marine station told me to lay 
the cans on the desk, face up.  It works.  I don't know why, maybe 
someone here knows.  Surprisingly, I generally didn't need to turn the 
gain up much if at all.


The receiver I used most on our HF frequencies was a brand new Collins 
51J4.  The military version was the R-388A.  It had 6 and 3 KHz mech 
filters, and a separate, adjustable crystal filter.  Did not cover 500 
Kcs which was particularly noise and full of signals at night, however 
the trick worked on those receivers too, so it wasn't just the mech filter.


73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 9/21/2016 9:43 AM, Guy Olinger K2AV wrote:

On Wed, Sep 21, 2016 at 6:59 AM, Bill W4ZV  wrote:


This is nothing new.  K3ZO has been doing this for about 30 years (at
least)
using wide filters and his ears as DSP.


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Re: [Elecraft] Portable Ops with KX3 along with KXPA100

[Lynn W. Taylor, WB6UUT]

One thing to think about (and yes, Honda makes great stuff).

There is a triple-fuel conversion for the Yamaha generators -- gasoline, 
propane or natural gas.


Propane is easier to store, and won't gum up the carburetor like gasoline.

I've not seen a propane conversion Honda generator, but I'd definitely 
look for non-gasoline options.


-- Lynn
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Re: [Elecraft] Portable Ops with KX3 along with KXPA100

[Mike Watterson (K3MAW)]

Phil,

If you go with the Honda give Mayberrys a call, http://www.mayberrys.com/.
They give a discount to hams.  I bought mine there several years ago and if
I recall, the discount was pretty good.

Mike - K3MAW

On Wed, Sep 21, 2016 at 11:21 AM, Phil Hystad  wrote:

>
> Thanks to all you guys with comments and recommendations regarding a
> generator.  Everyone seemed to have great reports on the Honda EU2000i and
> that will likely be what I get.  I see the going street price is $999.99.
>
> Some have suggested larger to handle other things like computer, coffee
> pots, etc.  If I were operating a day-long contesting station in the field
> then that might be justified but that is not my thing.  Besides, I never
> use a computer with ham radio except to load software/firmware on my
> Elecraft gear or maintain my log (though, I always log on paper and enter
> into computer later).
>
> Jim (K9YC) suggested using a good choke on the input AC line and I will
> look into it.  I already use his RFI paper as the basis design of several
> chokes I use on my dipole antennas.
>
> 73, phil, K7PEH
>
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Re: [Elecraft] Running stations with k3

[Matt Murphy]

> Now we're getting to the good part of this thread, which I've found quite
illuminating, because it explains user preferences for one radio over
another that aren't obvious. Thanks to Will, Guy, and Bill for their very
useful contributions to the discussion.

I agree, this is a very interesting topic.  I've heard some lore about the
TS-830 and 930, and the Yaesu FT-990 having very desirable receiver
characteristics for hearing weak signals in pileups not necessarily due
to a specific design goal or commensurate with minimizing close-in IMD,
 but as a byproduct of the overall receiver design whose distortion
characteristics happen to work nicely in a pileup.

In terms of the phase shift introduced by filters, I assume the distortion
introduced by the filter is commensurate with the steepness of the skirts?



On Wed, Sep 21, 2016 at 10:32 AM, Jim Brown 
wrote:

> On Wed,9/21/2016 3:59 AM, Bill W4ZV wrote:
>
>> This is nothing new.  K3ZO has been doing this for about 30 years (at
>> least)
>> using wide filters and his ears as DSP.  I did this long ago with a
>> TS-930S
>> using SSB filters with CW VBT fully engaged which shifts two IF filters in
>> opposite directions giving a broad overall response but peaked in the
>> center.  See K3ZO's comments here:
>>
>
> Now we're getting to the good part of this thread, which I've found quite
> illuminating, because it explains user preferences for one radio over
> another that aren't obvious. Thanks to Will, Guy, and Bill for their very
> useful contributions to the discussion.
>
> There's another VERY important factor related to bandwidth -- when we
> narrow the bandwidth to copy a very weak signal buried in noise (as opposed
> to QRM), the filter tends to ring at its skirts, making it more difficult
> to copy rather than easier. I find this to be true independent of which
> filter alignment I've chosen, and it's predicted entirely by classic filter
> theory. The K2, which sounds great when listening through its TX filter,
> has a multi-element crystal filter that it realigns to vary the bandwidth,
> sounds just awful when set for narrow SSB bandwidths. It's all due to the
> extreme phase shift in those filters.
>
> As another example from my work in pro audio, I was hired to try to clean
> some really nasty buzz out of a "jailhouse" recording. This was in the late
> '70s, and DSP didn't exist. My tool was a very high quality, very narrow
> tunable notch filter with high and low pass filters, and I passed the
> recording though it a half dozen times to attack the harmonics of the buzz.
> With each pass, I reduced the buzz, but I also introduced more phase shift.
> So as the signal to noise improved, the intelligibility degraded.
>
> 73, Jim K9YC
>
>
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Re: [Elecraft] Running stations with k3

[Jim Brown]

On Wed,9/21/2016 3:59 AM, Bill W4ZV wrote:

This is nothing new.  K3ZO has been doing this for about 30 years (at least)
using wide filters and his ears as DSP.  I did this long ago with a TS-930S
using SSB filters with CW VBT fully engaged which shifts two IF filters in
opposite directions giving a broad overall response but peaked in the
center.  See K3ZO's comments here:


Now we're getting to the good part of this thread, which I've found 
quite illuminating, because it explains user preferences for one radio 
over another that aren't obvious. Thanks to Will, Guy, and Bill for 
their very useful contributions to the discussion.


There's another VERY important factor related to bandwidth -- when we 
narrow the bandwidth to copy a very weak signal buried in noise (as 
opposed to QRM), the filter tends to ring at its skirts, making it more 
difficult to copy rather than easier. I find this to be true independent 
of which filter alignment I've chosen, and it's predicted entirely by 
classic filter theory. The K2, which sounds great when listening through 
its TX filter, has a multi-element crystal filter that it realigns to 
vary the bandwidth, sounds just awful when set for narrow SSB 
bandwidths. It's all due to the extreme phase shift in those filters.


As another example from my work in pro audio, I was hired to try to 
clean some really nasty buzz out of a "jailhouse" recording. This was in 
the late '70s, and DSP didn't exist. My tool was a very high quality, 
very narrow tunable notch filter with high and low pass filters, and I 
passed the recording though it a half dozen times to attack the 
harmonics of the buzz. With each pass, I reduced the buzz, but I also 
introduced more phase shift. So as the signal to noise improved, the 
intelligibility degraded.


73, Jim K9YC

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Re: [Elecraft] K3S and FSQcall

[n7wwa via Elecraft]

Found a work around. Set the FSQcall program to PTT. Enable Vox on the K3S
and set vox gain to 25.  I still get the "no com port available or in use"
message but the rig will key up and send.  If anyone still knows how to get
the K3S to key with FSQcall through the cat line, I would like to know.
n7wwa



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Re: [Elecraft] OT: K2

[Thomas Taylor]

On Tue, 20 Sep 2016 18:35:27 +
Eric J  wrote:

> I had recently stopped monitoring the reflector as I only have a K1 and 
> two K2's. Everything is K3 and subject lines rarely reflect that anymore 
> so it's hard to filter them. But I had a K2 problem and rejoined. Got a 
> response with solution within an hour! And discovered that I miss the OT 
> discussions from a unique bunch of experts. Most of the OTs are 
> interesting and more relevant to a non-KX/K3 owner. So I'm back to 
> monitoring only OTs. hi.
> 
> The new products don't fill any need in my hamming that isn't satisfied 
> by the K2, but the ongoing development of the state of ham art at 
> Elecraft is extraordinary to see.
> 
> Eric KE6US
> 
> On 9/19/2016 8:05 PM, Ron D'Eau Claire wrote:
> > P.S. Us K2 owners are rather quiet these days. I suspect few are still
> > monitoring the reflector. I miss the many questions about soldering,
> > testing, setting up an antenna, etc. But time, and products, moves on..
> >
> 
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This reflector has helped me on several occasions.  Most recently I got Don
Wilhelm's (W3FPR) name as a possible repair person.  I had an incomplete K2 (2
years uncompleted) which he completed, tested, and aligned at a cost which I
consider quite good and in a speedy manner.

I finally got some ham friends to help install a vertical antenna (I'm in a
wheelchair) and am now beginning to learn how to use the K2.  

My thanks to Don and others on this list who have offered help and advise with
problems as they occurred.

73, Tom Taylor  KE7TT

-- 

The foolish man seeks happiness in the distance. The wise man grows it under
his feet.
  -  James Oppenheim

^^  --...  ...--  / -.-  .  --...  - -


Tom Taylor  KE7TT
openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default,
KDE 4.11.2, AMD A8-7600, GeForce GTX 960
16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD
FF 40.1, claws-mail 3.10.1
registered linux user 263467
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Re: [Elecraft] Running stations with k3

[Ron D'Eau Claire]

As a 99.99% CW op, I prefer a fairly wide bandwidth - 2 kHz or so - when 
copying, especially with a weak signal. I attribute that to the gray-matter 
filter between my ears that can better detect the CW signal in wider-band noise 
rather than in a noise spectrum limited to frequencies near those of the 
signal. 

It works better for me even if there are other signals inside the bandpass. 
Then it becomes like listening to someone in a room full of people speaking to 
each other. Quickly my gray matter can filter out the extraneous chatter as 
long as no one voice is extremely loud, like someone standing next to you at a 
party yelling at someone across the room. In that case I prefer using the notch 
filter or even the limiter to suppress a "loudmouth" before narrowing the 
bandwidth.

I used to avoid AGC because of 'pumping', but got back into the habit with the 
Elecraft rigs because their AGC systems are extremely resistant to pumping.  

It was easier in the past because many signals had distinctive differences 
caused by hand-sent keying which made it easier to pick them out against a 
cacophony of others. Now, of course, most signals are pristine and produced by 
keyers although there are large variations in speeds, so it's still easier for 
me to use a wider bandwidth.

73, Ron AC7AC  

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter 
Underwood
Sent: Tuesday, September 20, 2016 8:43 PM
To: Elecraft Reflector Reflector
Subject: Re: [Elecraft] Running stations with k3

Analog filters have phase delay. That would be stronger with a narrower filter. 
Also, the on-off CW signal has sidebands (the harmonics of the square wave). 
Maybe a narrower filter sounds “softer”? I have no idea what “full-bodied CW” 
means, of course.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)


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Re: [Elecraft] Running stations with k3

[WILLIE BABER]

Well, I didn't mention who it was that made the comment about what we now can 
call the k3zo method.  However, the guy who sees an advantage in a 3 khz 
roofing filter can do just that!!

73, wj9b

CWops #1085
CWA Advisor levels II and III
http://cwops.org/


On Wed, 9/21/16, Guy Olinger K2AV  wrote:

 Subject: Re: [Elecraft] Running stations with k3
 To: "Bill W4ZV" 
 Cc: "Elecraft Reflector" 
 Date: Wednesday, September 21, 2016, 10:43 AM
 
 On Wed, Sep 21, 2016 at
 6:59 AM, Bill W4ZV 
 wrote:
 
 > This is nothing
 new.  K3ZO has been doing this for about 30 years (at
 > least)
 > using wide
 filters and his ears as DSP.
 >
 
 Some people really CAN do
 this. For some years while he was living in NC, I
 had the pleasure of operating with W2CS at the
 NY4A multi/multi sessions.
 There were some
 number of neat things he could do, that I could not make
 happen in my brain, including the K3ZO method
 and typing 100% copy well
 behind the signal
 while carrying on an unrelated conversation.
 
 I think I figured out I
 can't copy CW and chew gum at the same time or
 something pretty close. So beware of
 presentation of methodology as general
 technique, that actually requires some
 not-so-common physical talents to
 pull off.
 I *do* know that K3ZO and W2CS *can* do that, and I also
 know
 that I *cannot*. And I also know that
 my chances of typing CW well behind
 the
 signal and carrying on a separate conversation in the room
 about how
 deep to plant radials at the same
 time are simply, factually, ZERO.  :>)
 
 I do know how to turn K3
 diversity into a sound stage and spread signals in
 a pile up around an audio "horizon".
 So I'm not totally devoid.  :>)
 
 73, Guy K2AV
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Re: [Elecraft] [KXPA100] How can I find serial number?

[mike]

The KXPA Utility should have the S/N on the title bar if it's connected to a
KXPA100.

That's the easiest answer of all, Dick. SN was right there in the title bar.
Thanks to all.  73  ..mike  AI6II




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Re: [Elecraft] Running stations with k3

[Guy Olinger K2AV]

On Wed, Sep 21, 2016 at 6:59 AM, Bill W4ZV  wrote:

> This is nothing new.  K3ZO has been doing this for about 30 years (at
> least)
> using wide filters and his ears as DSP.
>

Some people really CAN do this. For some years while he was living in NC, I
had the pleasure of operating with W2CS at the NY4A multi/multi sessions.
There were some number of neat things he could do, that I could not make
happen in my brain, including the K3ZO method and typing 100% copy well
behind the signal while carrying on an unrelated conversation.

I think I figured out I can't copy CW and chew gum at the same time or
something pretty close. So beware of presentation of methodology as general
technique, that actually requires some not-so-common physical talents to
pull off. I *do* know that K3ZO and W2CS *can* do that, and I also know
that I *cannot*. And I also know that my chances of typing CW well behind
the signal and carrying on a separate conversation in the room about how
deep to plant radials at the same time are simply, factually, ZERO.  :>)

I do know how to turn K3 diversity into a sound stage and spread signals in
a pile up around an audio "horizon". So I'm not totally devoid.  :>)

73, Guy K2AV
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Re: [Elecraft] [KXPA100] How can I find serial number?

[Dick Dievendorff]

The KXPA Utility should have the S/N on the title bar if it's connected to a
KXPA100.

In the command tester window, type "^SN;"

73 de Dick, K6KR


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of mike
Sent: Wednesday, September 21, 2016 04:53
To: elecraft@mailman.qth.net
Subject: [Elecraft] [KXPA100] How can I find serial number?

I just acquired a used factory built KXPA100 that is missing the serial
number from the designated spot on the bottom of the case. I don't see where
the KXPA Utility tells me what the serial number is. How can I determine
this amp's serial number? Thanks  73  ..mike  AI6II



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Re: [Elecraft] Portable Ops with KX3 along with KXPA100

[Phil Hystad]

Thanks to all you guys with comments and recommendations regarding a generator. 
 Everyone seemed to have great reports on the Honda EU2000i and that will 
likely be what I get.  I see the going street price is $999.99.

Some have suggested larger to handle other things like computer, coffee pots, 
etc.  If I were operating a day-long contesting station in the field then that 
might be justified but that is not my thing.  Besides, I never use a computer 
with ham radio except to load software/firmware on my Elecraft gear or maintain 
my log (though, I always log on paper and enter into computer later).

Jim (K9YC) suggested using a good choke on the input AC line and I will look 
into it.  I already use his RFI paper as the basis design of several chokes I 
use on my dipole antennas.

73, phil, K7PEH

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Re: [Elecraft] [KXPA100] How can I find serial number?

[Harlan Sherriff]

Mike
Use the kxpa100 utility and send the serial number command (^SN). The utility 
will return the serial number. 

Harlan
K4HES

Sent from my iPhone

> On Sep 21, 2016, at 7:52 AM, mike  wrote:
> 
> I just acquired a used factory built KXPA100 that is missing the serial
> number from the designated spot on the bottom of the case. I don't see where
> the KXPA Utility tells me what the serial number is. How can I determine
> this amp's serial number? Thanks  73  ..mike  AI6II
> 
> 
> 
> --
> View this message in context: 
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Re: [Elecraft] K-POD missing a beat

[Don Wilhelm]

Tony,

That may not be a K-POD problem since the MEM 3 is being shown in the 
VFO B area.
Try to see if you can duplicate the same behavior with your M1 button 
(with the K-POD connected).


If you suspect an RF problem, try it into a dummy load and see if the 
behavior stops.  If it does, some work on your antenna system to reduce 
the RF in the Shack.


73,
Don W3FPR

On 9/21/2016 8:07 AM, Tony G6GLP wrote:

Hi All,

I have had the K-Pod some time now and have been more than happy with 
it. I modded the K3 with the 6.8 ohm R so that I only need to use the 
rj45 cable  supplied to connect the K3 and K-Pod together.


I have, being lazy, programmed F3 to simulate M1 which works fine most 
of the time.


When it works I press the F3 and MEM 3 appears on the K3 display and 
the contents of M1 are send (my call in CW). Occasionally only the MEM 
3 appears and the M1 contents are not sent. I know its easy enough to 
just press F3 again and it will work but thats not the point.




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Re: [Elecraft] OT: K2

[Jan]

My K2 # 136 yet does yeoman duty at the bedside, as a listening post in 
the whee hours
But recently I had to take it apart, to recall how the jumpers are set 
for the HM-2.  Was

helping a friend get his recent purchase of  a mike & K2 to work together.
Brought back memories of the Summer 1999 assembly, and fun operating .
Cheers, Jan K1ND
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Re: [Elecraft] [KXPA100] How can I find serial number?

[Don Wilhelm]

Mike,

If you know the name and callsign of the original owner, you can contact 
Elecraft support and they can look it up.


73,
Don W3FPR

On 9/21/2016 7:52 AM, mike wrote:

I just acquired a used factory built KXPA100 that is missing the serial
number from the designated spot on the bottom of the case. I don't see where
the KXPA Utility tells me what the serial number is. How can I determine
this amp's serial number? Thanks  73  ..mike  AI6II



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[Elecraft] K-POD missing a beat

[Tony G6GLP]

Hi All,

I have had the K-Pod some time now and have been more than happy with 
it. I modded the K3 with the 6.8 ohm R so that I only need to use the 
rj45 cable  supplied to connect the K3 and K-Pod together.


I have, being lazy, programmed F3 to simulate M1 which works fine most 
of the time.


When it works I press the F3 and MEM 3 appears on the K3 display and the 
contents of M1 are send (my call in CW). Occasionally only the MEM 3 
appears and the M1 contents are not sent. I know its easy enough to just 
press F3 again and it will work but thats not the point.


Has anyone else seen this or similar and found the fix? I thought it 
maybe RF getting in but it happens on various bands so while not 
impossible, it is unlikely (OK prove me wrong).


Looking forward to hearing the theories!


73 de Tony G6GLP

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[Elecraft] [KXPA100] How can I find serial number?

[mike]

I just acquired a used factory built KXPA100 that is missing the serial
number from the designated spot on the bottom of the case. I don't see where
the KXPA Utility tells me what the serial number is. How can I determine
this amp's serial number? Thanks  73  ..mike  AI6II



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Re: [Elecraft] Running stations with k3

[Bill W4ZV]

WILLIE BABER wrote
> It wasn't my term.  But I think "full-bodied" cw means a slightly wider
> I-F to establish background noise that some ops want to hear, particularly
> if  the receiver has exceptional gain distribution and in-band IMD, which
> the latest Icoms do have.  This gives articulation to cw signal outs of a
> quiet back ground of noise, and so long as you are not dealing with an
> exceptionally strong signal nearby, hard-wired fast agc can give relative
> strength to the competing signals.  Then, a good cw op can pick out
> stations actually easier than with a 400hz filter where RIT becomes more
> necessary.  Of course on the Icom radio there is no choice but to do this
> because 3khz  is the narrowest setting, though you could ask for more DSP
> filtering.

This is nothing new.  K3ZO has been doing this for about 30 years (at least)
using wide filters and his ears as DSP.  I did this long ago with a TS-930S
using SSB filters with CW VBT fully engaged which shifts two IF filters in
opposite directions giving a broad overall response but peaked in the
center.  See K3ZO's comments here:  

http://elecraft.365791.n2.nabble.com/K3-CW-Rx-Audio-td467894.html#a467895
  
As Guy said this technique will NOT work on extremely crowded bands on the
East Coast but I have used it on 10 meters where it was not uncommon for JAs
to reply well off-frequency.  It absolutely WILL NOT work for 160 contests
loaded with S9+++ signals spaced every 200 Hz.

Interestingly enough I use this technique with APF for ultra weak signal
DXing on 160.  I set my 200 Hz filters (in diversity) to engage at 400 Hz
(i.e. the DSP filter is 400 Hz but preceded by the broad shape factor 200 Hz
XTAL filter).  This gives more presence (i.e. "full-bodied" sound) to the
weak signal by allowing it to be differentiated from noise by my ear/brain
while APF is engaged.  The net result is a broad overall response but with a
very narrow ~10 dB peak in the center (from APF).  

73,  Bill  W4ZV




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Re: [Elecraft] ] : K2

[steve roberts]

Hello all,

I recently joined the reflector after purchasing an older K2. I was recently 
looking for a Kat100 to mate with the K2 and found one on QTH. It had several 
deficiencies and because of the reflector, I found Don Wilhelm. He took the 
tuner and repaired it within a week. It's now in line, doing what's it's 
supposed to do. My point is no matter if you own a K1, K2, or K3, answers, no 
matter what, can be found here.

73

Steve
N2SER


On September 21, 2016, at 05:16, Johnny Siu via Elecraft 
 wrote:

Hello Eric,
Please stay with the reflector.  Folks here are helpful and civilized.  
Opposite opinions can be expressed here without too much firing back (even you 
criticize elecraft).  Occasional OT is also allowed.
I once asked for tourist information in NYC.
73
Johnny VR2XMC

  寄件人︰ Eric J 
 收件人︰ "elecraft@mailman.qth.net" 
 傳送日期︰ 2016年09月21日 (週三) 2:35 AM
 主題︰ [Elecraft] OT: K2

I had recently stopped monitoring the reflector as I only have a K1 and
two K2's. Everything is K3 and subject lines rarely reflect that anymore
so it's hard to filter them. But I had a K2 problem and rejoined. Got a
response with solution within an hour! And discovered that I miss the OT
discussions from a unique bunch of experts. Most of the OTs are
interesting and more relevant to a non-KX/K3 owner. So I'm back to
monitoring only OTs. hi.

The new products don't fill any need in my hamming that isn't satisfied
by the K2, but the ongoing development of the state of ham art at
Elecraft is extraordinary to see.

Eric KE6US

On 9/19/2016 8:05 PM, Ron D'Eau Claire wrote:
> P.S. Us K2 owners are rather quiet these days. I suspect few are still
> monitoring the reflector. I miss the many questions about soldering,
> testing, setting up an antenna, etc. But time, and products, moves on..
>

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[Elecraft] ] OT: K2

[Johnny Siu via Elecraft]

Hello Eric,
Please stay with the reflector.  Folks here are helpful and civilized.  
Opposite opinions can be expressed here without too much firing back (even you 
criticize elecraft).  Occasional OT is also allowed.
I once asked for tourist information in NYC.
73
Johnny VR2XMC

  寄件人︰ Eric J 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年09月21日 (週三) 2:35 AM
 主題︰ [Elecraft] OT: K2
   
I had recently stopped monitoring the reflector as I only have a K1 and 
two K2's. Everything is K3 and subject lines rarely reflect that anymore 
so it's hard to filter them. But I had a K2 problem and rejoined. Got a 
response with solution within an hour! And discovered that I miss the OT 
discussions from a unique bunch of experts. Most of the OTs are 
interesting and more relevant to a non-KX/K3 owner. So I'm back to 
monitoring only OTs. hi.

The new products don't fill any need in my hamming that isn't satisfied 
by the K2, but the ongoing development of the state of ham art at 
Elecraft is extraordinary to see.

Eric KE6US

On 9/19/2016 8:05 PM, Ron D'Eau Claire wrote:
> P.S. Us K2 owners are rather quiet these days. I suspect few are still
> monitoring the reflector. I miss the many questions about soldering,
> testing, setting up an antenna, etc. But time, and products, moves on..
>

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