[Elecraft] UK Elecraft net report for Sunday 12th April

[Dave G4AON]

Conditions this week were mostly OK, although continental contest
stations occasionally caused problems.

The Blackpool Rally was well attended with several "Elecrafters" meeting
with Peter, G3UCA and Ian, G0VGS, who were present on an Elecraft stand
and the Sands Contest Group stand.
Paul, M1PAF, had particularly good audio from his K3 courtesy of a Heil
PR781 microphone.

Stations this week were:

M1PAF, Paul
G0VGS, Ian
G0MJW/P, Mike
G4DQP, Vince
GM3SEK, Ian
G8ZGK, Derf

73 until next week
Dave, G4AON
K3/100, Acom 1000, dipole
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Re: [Elecraft] FW: [CQ-Contest] SOME THOUGHTS ON USING THE K3 ON SSB

[Bill W4ZV]

After extensive experiments with tx audio settings in pursuit of "perfect 
audio" for my purposes - dxing on 80m - I came to the conclusion that for my 
voice with the HC-4, an offset of -0.07 with the 2.8 kHz filter was about 
right.


It's not unusual for the 8-pole filters to have small offsets, which would be 
particularly noticeable if on the bass side of the passband.  I've heard of up 
to 80 Hz (0.08) in some CW filters.  Anything large than that, indicates 
something else may be going on (like accidentally resetting the 5-pole offset 
to zero as K7SV noted in the original post).

73,  Bill

-- 
View this message in context: 
http://n2.nabble.com/FW%3A--CQ-Contest--SOME-THOUGHTS-ON-USING-THE-K3-ON-SSB-tp2621602p2623540.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] "Chinese copy" of KX-1?

[Ken Alexander]

Love the LCD display.  I wish Elecraft had gone that route.

However, if and when something goes wrong (even though it's assembled already) 
there's no Don Wilhelm or Elecraft mailing list to back you up, and to me 
that's worth the extra money.

73,

Ken Alexander
VE3HLS



--- On Sun, 4/12/09, Cortland Richmond  wrote:

> From: Cortland Richmond 
> Subject: [Elecraft] "Chinese copy" of KX-1?
> To: elecraft@mailman.qth.net
> Received: Sunday, April 12, 2009, 12:21 AM
> Anyone interested in copyright violations?
> 
> http://forums.qrz.com/showpost.php?p=1542773&postcount=1
> 
> Cortland
> KA5S
> 
> 
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Re: [Elecraft] Improved K3 Audio experience

[Mike Scott]

>Just curious - I notice that your setting for AGC PLS (agc pulse noise

>reject) is Off. Did that make a significant difference in your case?

 

Bob, I haven't noticed a difference with AGC PLS on or off. I haven't played
with it much so it may or may not make a difference in different conditions.

 

Mike Scott

Tarzana, CA

 

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[Elecraft] K2-Control Board Resistance Test

[Philip L. Graitcer]

First time kit builder and have just completed control board, but  
resistance checks do not seem to check out for several points:

P2, U5, U4 are all okay
*Q1 & Q2 collectors - both around 29K
U6 - pin 8 is okay (about 75K),
*U6 - pins 13, 14, are around 40K,
U6 - pins 29 and 30 are okay (around 40K)
*U8 - pin 2 about 40.7K, pins 15, 16, both 29.3K

I have inspected all solder joints with magnifier. I double checked  
components.

What should I do next?

Phil, W3HZZ



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[Elecraft] K3-Measuring Filter Offset

[Mike Scott]

>It's not unusual for the 8-pole filters to have small offsets, which would
be particularly noticeable if on the bass side of the >passband.  I've heard
of up to 80 Hz (0.08) in some CW filters.  Anything large than that,
indicates something else may be going >on (like accidentally resetting the
5-pole offset to zero as K7SV noted in the original post).

 

Could someone describe a procedure to measure filter offset. I have
spectragram (can't remember the real name) software on my PC.

 

I have a five pole 2.7 KHz in each of main and subreceiver. They are matched
to -0.87 but I would like to measure and split the difference if there is
one. I do notice that the main rx filter has enough of a passband slope that
USB and LSB frequency response is notably different. I can hear a
significant change to background noise color when I change modes. For this I
am hoping to have mode-specific equalization some day. It is also possible
that a different offset might improve what I am hearing.

 

Mike Scott

AE6WA Tarzana, CA

K3/100 SN508

 

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Re: [Elecraft] K2-Control Board Resistance Test

[Don Wilhelm]

Phil,

The most likely problem is that you have a solder bridge somewhere (or 
perhaps several).  Look at the amount of solder on your connections.  If 
it has more than a very small fillet, there is too much solder.  
Actually with the plated through holes just enough solder to fill the 
holes is sufficient, but I like to see a small fillet on the solder pad.

The solder connections should *not* look like 'balls of solder' (with a 
convex shape), the solder joints should have a concave shape to them.  
It has been said that a good solder joint looks like a mountain, but not 
a volcano.  Connections that have a concave shape usually indicate that 
insufficient heat was applied to the solder pad, and the solder did not 
flow out sufficiently.

If you do have too much solder, the cure is to take some away - solder 
wick works nicely or a professional type de-soldering tool works more 
quickly.  I know it is a lot of work to wick away the excess solder, but 
if I have described the condition of your Control Board correctly, that 
is the only positive cure.  In the future, heat the solder connection 
fully so the solder flows out well and control the amount of solder - 
this is *not* a thing where 'more is better'.  A small diameter solder 
allows better control of the amount applied.

73,
Don W3FPR

Philip L. Graitcer wrote:
> First time kit builder and have just completed control board, but  
> resistance checks do not seem to check out for several points:
>
> P2, U5, U4 are all okay
> *Q1 & Q2 collectors - both around 29K
> U6 - pin 8 is okay (about 75K),
> *U6 - pins 13, 14, are around 40K,
> U6 - pins 29 and 30 are okay (around 40K)
> *U8 - pin 2 about 40.7K, pins 15, 16, both 29.3K
>
> I have inspected all solder joints with magnifier. I double checked  
> components.
>
> What should I do next?
>
> Phil, W3HZZ
>   
>
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[Elecraft] K3: AGC Compendium Development-Anyone Interested in Sharing Settings?

[David and Dianne on Comcast]

Hi Everyone,

Bill, N2BC's recent updates to his very slick K3EZ Manager Program 
http://home.roadrunner.com/~n2bc/SW.htm 
 has introduced some very 
excellent features, one of them the ability to store and load directly 
to the K3 various combinations of AGC settings for use under different 
conditions, modes etc..

I have been thinking for a while about compiling a 'Compendium of K3 AGC 
Settings' from various users. Once complied, I would share this 
collection of settings with anyone interested in receiving this 
information gratis, either from me or perhaps through Bill or Elecraft 
depending upon how it all evolves, if at all.

If you are interested in sharing your AGC settings and any related 
comments in order to receive back those of your colleagues, please reply 
to me with your favorite AGC setting(s) in the following format:

Your Callsign: _ (Optional)
AGC HLD: ___
AGC PLS: ___
AGC SLP: ___
AGC THR: __
AGC F: ___
AGC S: ___
Mode Used: _
AGC Type (F or S): ___
Comments: _

Anyone interested? Testing the waters.

Happy Easter and Passover to all.

73 de N1LQ-Dave

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Re: [Elecraft] K3-Measuring Filter Offset

[Don Wilhelm]

Mike,

Since the goal is to make the 2 filters agree with each other, I would 
suggest using stereo input to Spectrogram - the main RX on the left 
channel and the sub RX on the right.  It should be visually apparent 
when the two filter passbands are overlapping each other to the greatest 
degree possible.

A noise generator on the antenna input with the main and sub both 
sharing the same antenna would be more helpful than attempting to use 
'band noise', but if no noise generator is available, band noise should 
still be informative.

I have not tried this (no subRX here), but I do believe it will work 
fine - Spectrogram will display both channels at once.

73,
Don W3FPR

Mike Scott wrote:
>> It's not unusual for the 8-pole filters to have small offsets, which would
>> 
> be particularly noticeable if on the bass side of the >passband.  I've heard
> of up to 80 Hz (0.08) in some CW filters.  Anything large than that,
> indicates something else may be going >on (like accidentally resetting the
> 5-pole offset to zero as K7SV noted in the original post).
>
>  
>
> Could someone describe a procedure to measure filter offset. I have
> spectragram (can't remember the real name) software on my PC.
>
>  
>
> I have a five pole 2.7 KHz in each of main and subreceiver. They are matched
> to -0.87 but I would like to measure and split the difference if there is
> one. I do notice that the main rx filter has enough of a passband slope that
> USB and LSB frequency response is notably different. I can hear a
> significant change to background noise color when I change modes. For this I
> am hoping to have mode-specific equalization some day. It is also possible
> that a different offset might improve what I am hearing.
>
>  
>
> Mike Scott
>
> AE6WA Tarzana, CA
>
> K3/100 SN508
>   
>
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[Elecraft] [K2][K3] Rework Eliminator(TM) Milestones & Plans

[Ken Kaplan]

We are considering aftermarket accessories for the K3 and welcome your 
ideas for new products.  We are especially interested in kits ...

o   Composed of one or more printed circuit boards.
o   For which there's sufficient interest to justify producing 60 units.
o   We could design, produce, and offer for sale for less than $40.
o   That might require custom engraving and/or pad printing.

We are already considering an external K3 mic adaptor based on our 
internal K2 adaptor.  It would work with (just about) any mic that has 
an 8-pin Foster connecter, and permit use of either the K3's front panel 
connecter or the rear panel mic and PTT jacks.

--- - - - ---

If you are not familiar with our Rework Eliminator(TM) aftermarket K2
accessory kits, we invite you to visit our website.  Or, for a 
third-party perspective check out the following product reviews at 
www.eham.net ...

o   www.eham.net/reviews/detail/6372 = Headers & Assembly Method
o   www.eham.net/reviews/detail/6918 = Internal Mic Adaptor

--- - - - ---

We also invite those of you who have experience with our products to
consider writing your own reviews; that they might benefit future K2
builders.  You can do this via the links below ...

o   www.eham.net/reviews/addreview/6372 = Headers & Assembly Method
o   www.eham.net/reviews/addreview/6918 = Internal Mic Adaptor

--- - - - ---

On a personal note, we consider 13 April 2005 to be the "official" 
beginning of our Rework Eliminators(TM) collaboration.  Also, we reached 
a significant milestone last month when we received our 500th customer 
order!  It has been our pleasure serving the Elecraft community the past 
four years, and we look forward to many more.

73,
Ken  WB2ART
Gary  KI4GGX
www.unpcbs.com

~ Rework Eliminator, Rework Eliminators, & unpcbs ~~
~~ are trademarks of Ken Kaplan and Gary Hvizdak ~~~


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[Elecraft] K3: 'Line In' problems

[Jason Reber]

Greetings everyone;
 
I just got the new K3 assembled, and I'm really enjoying it. However, I
have an issue with the "line in" not working, and I wonder if anyone
else has seen this with a recently purchased K3.
I'm trying to use the "line in" for PSK 31, but the input is not
working. I've read previous posts, so I've ensured that the MIC SEL is
set to Line In, and that the mic gain for Line In is is not at zero.
When I move the cable to the rear panel Mic Input, and set the MIC SEL
to rP.L, everything works fine. 
 
I've tried the released firmware from January, and the current beta
firmware, and neither helps. Is there anything else I might be missing?
 
Thanks,
 
Jason  AC7JW
 
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[Elecraft] FS: LP-Pan & Infransonic Quartet

[Edward Dickinson, III]

LP-Pan #0122, Manaul, etc.
Infransonic Quartet Sound Card with orginal packaging - 192 kHz - PCI.

All like new.

USPS Conus $295

Please contact off list.


Best Regards,
Dick - KA5KKT

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Re: [Elecraft] Elecraft SSB Net Announcement

[Mike-WE0H]

That carrier on 14.31800mc is nuts loud in Minnesota. I tried to check 
in but only one station heard me and repeated my callsign. Even the DSP 
won't wipe that screaming carrier out.

-- 
Mike
WE0H
K2 #6698
SKCC #5446



Phil and Christina wrote:
> Hi gang,
>
> The weekly Elecraft SSB net will meet tomorrow (Sunday, 4/12/09) at 1800Z.
> We will start at 14.316 MHz, and QSY if needed.  The net control is in
> western Oregon, but we will need a good east coast or midwest station to
> relay a few west coast signals that may be too close to net control.  See
> you there.
>
> 73,
>
> Phil, NS7P

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Re: [Elecraft] Elecraft SSB Net Announcement

[Jim Wiley]

Mike et al -


It might be good to check to see if you aren't doing it to yourself.  
14.318 divided by 4 is 3.579 MHz, the "color burst" frequency used by 
millions of consumer devices as a reference frequency, and not just TV 
sets.  I have heard carriers on or around that frequency with strengths 
up to and including "S9" for literally years.  Harmonics from poorly 
designed or shielded oscillators in TV sets, computers, clocks, DVD 
players, VCRs, microwave ovens,  game players, fax machines, printers, 
telephones, toys, medical devices, and many more items have polluted 
this frequency for at least 20 years.  Just now I checked and can hear 
at least  5 separate  "sources"  in a casual  check of the frequency - 
and those are just the "loud ones" from a random beam heading.  I am 
sure there are dozens more underneath the louder ones. .


The sources are so ubiquitous that it is virtually impossible to escape 
them no matter where you live.   The signals that you are hearing are 
probably not the same ones that another ham in the next state is 
hearing, but there are so many of them that it is unlikely anyone can 
escape them. 


They are part of the reason for that FCC warning about "Operation this 
device may cause interference to nearby radio ant TV receivers ."  
(I am paraphrasing here) that you see on so many consumer electronics 
devices.


One reason your DSP may be having trouble eliminating the carriers is 
that there are usually several on slightly differing frequencies.  The 
crystals aren't all that accurate in some devices, and by the time we 
get to the 4th harmonic, differences of a few tens of Hertz to several 
hundred Hertz are common.  Most of these oscillators are not in some 
type of circuit that is phase locked to a master source, as  is the case 
for some TV broadcasts.  Most of them are "free running"  in the sense 
that all they have to be is "close enough" to perform the task at hand.,


- Jim, KL7CC



Mike-WE0H wrote:
> That carrier on 14.31800mc is nuts loud in Minnesota. I tried to check 
> in but only one station heard me and repeated my callsign. Even the DSP 
> won't wipe that screaming carrier out.
>
>   
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Re: [Elecraft] Elecraft SSB Net Announcement

[Mike-WE0H]

Hi Jim,

That makes sense. I was thinking a bit and realized most computer 
motherboards have a 14.318mc oscillator in them. Then as you said the 
color burst freq x4 and that makes a huge mess out of that freq and near 
by. 20m was up & down and the solar conditions are terrible this weekend 
compounding the problem of having only 15w to work with. At least one 
person heard me and repeated my callsign so I hope I got checked in...hi 
hi...

-- 
Mike
WE0H
K2 #6698
SKCC #5446



Jim W wrote:
>
> Mike et al -
>
>
> It might be good to check to see if you aren't doing it to yourself.  
> 14.318 divided by 4 is 3.579 MHz, the "color burst" frequency used by 
> millions of consumer devices as a reference frequency, and not just TV 
> sets.  I have heard carriers on or around that frequency with 
> strengths up to and including "S9" for literally years.  Harmonics 
> from poorly designed or shielded oscillators in TV sets, computers, 
> clocks, DVD players, VCRs, microwave ovens,  game players, fax 
> machines, printers, telephones, toys, medical devices, and many more 
> items have polluted this frequency for at least 20 years.  Just now I 
> checked and can hear at least  5 separate  "sources"  in a casual  
> check of the frequency - and those are just the "loud ones" from a 
> random beam heading.  I am sure there are dozens more underneath the 
> louder ones. .
>
>
> The sources are so ubiquitous that it is virtually impossible to 
> escape them no matter where you live.   The signals that you are 
> hearing are probably not the same ones that another ham in the next 
> state is hearing, but there are so many of them that it is unlikely 
> anyone can escape them.
>
> They are part of the reason for that FCC warning about "Operation this 
> device may cause interference to nearby radio ant TV receivers ."  
> (I am paraphrasing here) that you see on so many consumer electronics 
> devices.
>
>
> One reason your DSP may be having trouble eliminating the carriers is 
> that there are usually several on slightly differing frequencies.  The 
> crystals aren't all that accurate in some devices, and by the time we 
> get to the 4th harmonic, differences of a few tens of Hertz to several 
> hundred Hertz are common.  Most of these oscillators are not in some 
> type of circuit that is phase locked to a master source, as  is the 
> case for some TV broadcasts.  Most of them are "free running"  in the 
> sense that all they have to be is "close enough" to perform the task 
> at hand.,
>
>
> - Jim, KL7CC
>
>
>
> Mike-WE0H wrote:
>> That carrier on 14.31800mc is nuts loud in Minnesota. I tried to 
>> check in but only one station heard me and repeated my callsign. Even 
>> the DSP won't wipe that screaming carrier out.

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Re: [Elecraft] K3 is not responding

[Guy Olinger, K2AV]

I have had an off and on problem with a USB to serial dongle, and finally 
discovered the following pattern:

Using Windows XP, all current windows upgrades maintained.

Using the USB dongle purchased from Elecraft.  The Elecraft recommended 
drivers from the mfr. have been installed.

K3 is on.

K3 is reachable via the USB dongle on COM3  by other programs, N1MM, etc on 
COM3

ANY firmware update arrives, makes no difference.

Start up 1.2.16 K3 utility.  Finds K3 right off, no problems.

Install firmware no problems.

**IF** I terminate the K3 1.2.16 utility and after that power off the K3 I 
have no problems.  COM3 is still around to play with as desired.

**IF** I do the recommended K3 power off BEFORE I terminate the K3 1.2.16 
utility, this locks up the utility. It cannot be terminated with the "X" 
button in the upper right of the window.

Powering the K3 back on does not restore the utility to operation. The only 
way to terminate the utility is with Windows Task Manager.

Further, regardless of whether K3 is back on COM3 has been rendered 
unreachable and the only way to restore it to communications is with a 
reboot.

This particular sequence is the only one which creates this lockup.

Turning off the K3 with N1MM running does not cause this issue, N1MM 
complains about lost communications until I turn the K3 back on and it's 
happy again.  This would seem to be an issue with the utility only.

Perhaps this has involvement with some of the reported issues?

73, Guy.


- Original Message - 
From: "Tim" 
To: "Elecraft Reflector" 
Sent: Saturday, April 11, 2009 11:33 PM
Subject: [Elecraft] K3 is not responding


> Without warning and having made no changes my K3-10, using utility 1.2.16,
> MCU 2.78 and DSP 1.98, is now giving me "K3 is not responding".  I'm using
> the USB/SERIAL adapter from Elecraft.  The USB ports are working on the
> computer.  Any ideas of what I can check?  Thanks.
>
> Tim K5OI
> K3 #430.
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[Elecraft] K3: Audio Mixer

[David Gilbert]

There was a discussion here recently about being able to listen to the 
main receiver in both ears while listening to the subreceiver only in 
the right ear, which to me makes a lot of sense for contesting  
optimum spatial cognition using both ears to pick out weak callers on 
the main run frequency while being able to scan for other contacts with 
the right ear.

So I bought a Behringer Xenyx 502 audio mixer to give that a try.  It 
just arrived yesterday and I must say that it works great.  It was easy 
to set up and gives me total control over both audio channels ... I can 
make any amount of audio from either the main or subreceiver appear in 
either earphone.  Having the main in both ears and the sub in the right 
ear is very, very nice ;)   If anyone wants to give it a try, send me an 
email and I'll describe how I set up the connections.

The unit is about 7 inches by 5 inches so it doesn't take up too much 
room on the desk, and it's built like a tank.  A Google search will 
bring up several online sources, and they all seem to have the same 
price  $45 plus shipping.  How they can sell the thing for that 
price is beyond me.

This would also nicely handle the needs of the upcoming SO4R DXpedition, 
although it requires it's own 120 VAC power supply and that might be 
inconvenient.

73,
Dave   AB7E


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Re: [Elecraft] OT: Meet the bag lady at Visalia (:-)

[Fred Jensen]

Ken Kopp wrote:
> Stop at the 
> Elecraft booth at Visalia next week-end and meet Rose, N7HKW the 
> Elecraft cover and bag lady.  She'll have samples of her products, along 
> with samples of Dave, W8FGU's clear plastic Elecraft Mini-Module 
> housings.  Dave has added a new Elecraft HexKey cover that's really nice.

Dave, W8FGU, is a good friend of mine, and he's had me "beta testing" a 
couple of his creations -- a clear case for the W1 wattmeter, and the 
Hexkey cover.  I believe his cases are available in both clear and 
smoked versions.  In addition to keeping the dust off, the Hexkey cover 
has a second advantage ... my Hexkey tends to move around just a little 
on the surface of the desk.  When installed in the cover, the cover is 
solid on the desk, and the paddle is solid on the base of the cover.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2009 Cal QSO Party  3-4 Oct 2009
- www.cqp.org
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[Elecraft] K3 RF Gain difference, main and sub

[Mike Scott]

I am wondering if the RF gain encoders are read exactly the same between
main and sub receivers.

There is a significant difference in RF gain when I move them both down
together. I can turn the sub Rx RF all the way down and still have
appreciable RF gain, about equivalent to Main at half gain, 12 O'clock.

 

I monitored both receiver outputs on Spectragram with a noise source going
to both receivers, sharing ANT 1. I believe both receivers had identical
filters and settings. Very different gain response and no ability to reduce
sub Rx gain to zero or very low.

 

Audio gain tracks very well by ear. I can grab both AF gain controls and
move them together and audio remains balanced. It is quite easy to rotate
them together and have them not move differentially. 

 

 

Mike Scott

AE6WA Tarzana, CA

K3/100 SN508

 

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Re: [Elecraft] K3 is not responding

[Dick Dievendorff]

This has been corrected in a subsequent version of the K3 Utility.  We're
working now toward getting a new K3 Utility version onto the Elecraft web
site.

Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger, K2AV
Sent: Sunday, April 12, 2009 12:01 PM
To: Tim; Elecraft Reflector
Subject: Re: [Elecraft] K3 is not responding

I have had an off and on problem with a USB to serial dongle, and finally 
discovered the following pattern:

Using Windows XP, all current windows upgrades maintained.

Using the USB dongle purchased from Elecraft.  The Elecraft recommended 
drivers from the mfr. have been installed.

K3 is on.

K3 is reachable via the USB dongle on COM3  by other programs, N1MM, etc on 
COM3

ANY firmware update arrives, makes no difference.

Start up 1.2.16 K3 utility.  Finds K3 right off, no problems.

Install firmware no problems.

**IF** I terminate the K3 1.2.16 utility and after that power off the K3 I 
have no problems.  COM3 is still around to play with as desired.

**IF** I do the recommended K3 power off BEFORE I terminate the K3 1.2.16 
utility, this locks up the utility. It cannot be terminated with the "X" 
button in the upper right of the window.

Powering the K3 back on does not restore the utility to operation. The only 
way to terminate the utility is with Windows Task Manager.

Further, regardless of whether K3 is back on COM3 has been rendered 
unreachable and the only way to restore it to communications is with a 
reboot.

This particular sequence is the only one which creates this lockup.

Turning off the K3 with N1MM running does not cause this issue, N1MM 
complains about lost communications until I turn the K3 back on and it's 
happy again.  This would seem to be an issue with the utility only.

Perhaps this has involvement with some of the reported issues?

73, Guy.


- Original Message - 
From: "Tim" 
To: "Elecraft Reflector" 
Sent: Saturday, April 11, 2009 11:33 PM
Subject: [Elecraft] K3 is not responding


> Without warning and having made no changes my K3-10, using utility 1.2.16,
> MCU 2.78 and DSP 1.98, is now giving me "K3 is not responding".  I'm using
> the USB/SERIAL adapter from Elecraft.  The USB ports are working on the
> computer.  Any ideas of what I can check?  Thanks.
>
> Tim K5OI
> K3 #430.
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[Elecraft] W1 and HexKey enclosures

[Ken Kopp]

I asked Dave about making a smoked W1 enclosure for
me a few weeks ago and I now have the first one.  It will 
be on display at Visalia, along with other cases by Dave.

Dave's HexKey cover has a bottom that the paddle is set 
in before the cover is placed over the key ... a nice feature ...
and the feet are "stickier" that those on the key, as Fred has
mentioned .  It amounts to a fully-enclosed "case" for the key.

I've printed a stack of brochures for Dave and will have them 
at Visalia.

73! Ken Kopp - K0PP
  elecraftcov...@rfwave.net
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Re: [Elecraft] K3: Audio Mixer

[Lyle Johnson]

The adventurous may try the following.  These commands do not stick 
through power cycles, and may not remain through mode changes or other 
commands.  In other words, the radio may revert back to normal operation 
at any time :)

If you want Main Rx in both ears and leave the Sub Rx in the right ear, 
go to the command tester and type:

!bed7;

If you want the Sub Rx in both ears and the Main only in the left, type:

!bef9;

Be sure SPKRS+PH is OFF, or SPKRS=2, with these commands.

Enjoy!

73,

Lyle KK7P






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[Elecraft] More on K3 not responding

[Julius Fazekas]

Sounds .ike the USB adapter is at a different address than your previous one. 
Check what port, if any it's been assigned, and use that port address in the K3 
utility...

All USB/Serial adapters are not created equal ;o)

GL,
Julius

Julius Fazekas
N2WN

Tennessee Contest Group
http://www.k4ro.net/tcg/index.html

Tennessee QSO Party: Sunday, 6 Sept 2009
http://www.tnqp.org/

Elecraft K2/100 #4455
Elecraft K3/100 #366
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[Elecraft] K3: Optimizing filter offsets for SSB TX and RX

[KM5Q]

Continued from:   [CQ-Contest] SOME THOUGHTS ON USING THE K3 ON SSB

Reading these messages, I decided I should try adjusting the offset  
for my 2.8 8-pole filter from the normal 0. I have been getting good  
audio reports, but not "excellent".

Listening during adjustment, I found that as I reached -.20 some high  
harshness was reduced. I thought that would be good, as I often find  
myself cutting back the HI passband to get a similar effect. Then I  
got on the Sunday Elecraft SSB Net. I couldn't get many opinions  
because propagation  was poor, but I had Phil NS7P give me his  
opinion. He reported the least distortion around offset -.20, and  
clearly an improvement over the 0 setting. So that's where I have it.  
It's an easy test to make, since you can transmit with the CONFIG  
window open.

Ever curious, I thought to play with my 2.1 filter offset (just for  
receiving of course). I never liked listening to SSB with it because  
the highs sounded harsh. As I turned it from the normal 0, down past -. 
20, it started to sound better. I preferred around -.40 until I  
checked it on a weak CW signal. It was making it weaker in comparison  
with the other filters. So I compromised and set it at -.27. I'm happy  
with that!

I think this is a good discovery! Maybe it's something the factory  
should look into?

Windy KM5Q
K3 #764


Bill W4ZV wrote:
> After extensive experiments with tx audio settings in pursuit of  
> "perfect
> audio" for my purposes - dxing on 80m - I came to the conclusion  
> that for my
> voice with the HC-4, an offset of -0.07 with the 2.8 kHz filter was  
> about
> right.
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[Elecraft] NAQCC Sprint Tuesday night!

[NAQCC]

NAQCC Sprint Tuesday night!

This coming Tuesday evening will be the monthly NAQCC Sprint for April, 2009.

I will refer you to the proper URL:

http://www.arm-tek.net/~yoel/sprint200904.html

There you will find all the details as to time, frequencies and also a special 
prize.

This month's Special Award goes to the winner of a drawing among the following: 
The one making the most QSO's with Canadian stations and having the highest 
score in each division.

This is a monthly event that caters to the CW veteran, the CW newcomer, 
straight key and bug fans. All are welcome to participate (this includes QRO); 
but you must use QRP power levels to compete for awards.

Come join us and have a real good time!

73 de Dave VA3RJ
NAQCC #0004

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Re: [Elecraft] OT: Meet the bag lady at Visalia (:-)

[Frank R. Oppedijk]

Fred,

Can you provide a picture of the Hexkey cover? It's not yet on 
W8FGU's web site and I'm very interested.

Thanks, 73,

Frank PA4N


At 21:13 12/04/2009, Fred Jensen wrote:
>Dave, W8FGU, is a good friend of mine, and he's had me "beta testing" a
>couple of his creations -- a clear case for the W1 wattmeter, and the
>Hexkey cover.

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Re: [Elecraft] K3: Optimizing filter offsets for SSB TX and RX

[Bill W4ZV]

Continued from:   [CQ-Contest] SOME THOUGHTS ON USING THE K3 ON SSB

Reading these messages, I decided I should try adjusting the offset  
for my 2.8 8-pole filter from the normal 0. I have been getting good  
audio reports, but not "excellent".



Bill W4ZV wrote:
> After extensive experiments with tx audio settings in pursuit of  
> "perfect
> audio" for my purposes - dxing on 80m - I came to the conclusion  
> that for my
> voice with the HC-4, an offset of -0.07 with the 2.8 kHz filter was  
> about


I did NOT write that.  That was a quote from G3UCK I was replying to regarding 
the fact that offsets up to 80 Hz in 8-pole CW filters are not uncommon.  I've 
not done any testing on SSB or with the 2.8k 8-pole filter since I don't even 
have one (and haven't even been on SSB much).  Check back with me in a couple 
of years when 10 meters opens again!  :-)  

73,  Bill  W4ZV

-- 
View this message in context: 
http://n2.nabble.com/K3%3A-Optimizing-filter-offsets-for-SSB-TX-and-RX-tp2625345p2625485.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] K3: Audio Mixer

[David Gilbert]

That's VERY slick!  And certainly simpler than using an external mixer.  
As you say, it goes away with a power cycle, and also when I turn the 
SUB off then back on.  So far it seems to survive most other changes 
I've tried, though  ... mode, band, filter, VFO, etc.

I've already programmed one of the command tester macros for it.  Is 
there an equivalent command to set it back to normal?

Nice work!

73,
Dave   AB7E



Lyle Johnson wrote:
> The adventurous may try the following.  These commands do not stick 
> through power cycles, and may not remain through mode changes or other 
> commands.  In other words, the radio may revert back to normal operation 
> at any time :)
>
> If you want Main Rx in both ears and leave the Sub Rx in the right ear, 
> go to the command tester and type:
>
> !bed7;
>
> If you want the Sub Rx in both ears and the Main only in the left, type:
>
> !bef9;
>
> Be sure SPKRS+PH is OFF, or SPKRS=2, with these commands.
>
> Enjoy!
>
> 73,
>
> Lyle KK7P
>
>
>
>
>
>
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Re: [Elecraft] K3: Optimizing filter offsets for SSB TX and RX

[Joe Subich, W4TV]

If you crank in an offset with the 8 pole filters be sure 
you test it with BOTH USB and LSB.  An offset that enhances 
low frequency response in USB will reduce the LF response in 
LSB (enhance high frequency response) and vice versa. 

73, 

   ... Joe, W4TV 
 



> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KM5Q
> Sent: Sunday, April 12, 2009 5:28 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] K3: Optimizing filter offsets for SSB TX and RX
> 
> 
> Continued from:   [CQ-Contest] SOME THOUGHTS ON USING THE K3 ON SSB
> 
> Reading these messages, I decided I should try adjusting the offset  
> for my 2.8 8-pole filter from the normal 0. I have been getting good  
> audio reports, but not "excellent".
> 
> Listening during adjustment, I found that as I reached -.20 
> some high  
> harshness was reduced. I thought that would be good, as I often find  
> myself cutting back the HI passband to get a similar effect. Then I  
> got on the Sunday Elecraft SSB Net. I couldn't get many opinions  
> because propagation  was poor, but I had Phil NS7P give me his  
> opinion. He reported the least distortion around offset -.20, and  
> clearly an improvement over the 0 setting. So that's where I 
> have it.  
> It's an easy test to make, since you can transmit with the CONFIG  
> window open.
> 
> Ever curious, I thought to play with my 2.1 filter offset (just for  
> receiving of course). I never liked listening to SSB with it because  
> the highs sounded harsh. As I turned it from the normal 0, 
> down past -. 
> 20, it started to sound better. I preferred around -.40 until I  
> checked it on a weak CW signal. It was making it weaker in 
> comparison  
> with the other filters. So I compromised and set it at -.27. 
> I'm happy  
> with that!
> 
> I think this is a good discovery! Maybe it's something the factory  
> should look into?
> 
> Windy KM5Q
> K3 #764
> 
> 
> Bill W4ZV wrote:
> > After extensive experiments with tx audio settings in pursuit of
> > "perfect
> > audio" for my purposes - dxing on 80m - I came to the conclusion  
> > that for my
> > voice with the HC-4, an offset of -0.07 with the 2.8 kHz 
> filter was  
> > about
> > right.
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Re: [Elecraft] K3: Audio Mixer

[Lyle Johnson]

Hello Dave!

> I've already programmed one of the command tester macros for it.  Is 
> there an equivalent command to set it back to normal?

Assuming you mean Main Left, Sub Right (the same as you get when turning 
the Sub ON), try:

!bed1;

73,

Lyle KK7P

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[Elecraft] OT: HexKey Enclosure Now Available

[Dave Van Wallaghen]

Hello all,

As Ken (K0PP) and Fred (K6DGW) have mentioned, I finally settled on a 
design for the HexKey enclosure and I am now accepting orders. I've 
updated my website and you can find info on all of my enclosures here: 
http://w8fgu.home.comcast.net/~w8fgu/enclosures.html

I opted to use acrylic as opposed to polycarbonate for this enclosure 
because of it's clear glass like appearance. My thought was that this 
would be more of a display case than something that would be used in the 
field. Although it is not as strong as polycarbonate, it is still five 
times stronger than glass. It really showcases the HexKey nicely and 
protects it from dust in the shack.

The pieces are all cut on my table saw and welded together by hand. I 
then use a propane torch to glaze over the cut edges to give all edges 
and corners a polished look and feel. I'm selling the cover and bottom 
separately as I have found some of my testers wanted just a cover 
without the bottom. The bottom does have six small plastic feet that 
hold it to the bench very well and only elevates the key about 3/16". If 
you prefer not to have a bottom, I can place small strips of the same 
type of plastic used for the feet on the bottom of the cover to prevent 
it from sliding around on the bench.

Currently, the cover is made of clear acrylic and the bottom is made 
from a smoke colored acrylic. The smoke colored acrylic is somewhat 
translucent, so if you desired an all smoke colored enclosure, I can 
make one for a few dollars more (the smoke colored acrylic is more 
expensive).

I am also taking custom key enclosure orders as well. I've built 
enclosures for the Bencher BY series of keys for a number of hams. I 
also made a custom round enclosure for the Bencher Mercury Key. I made 
it from a 5" diameter cast acrylic tube with a circular acrylic disk 
top. It also fits the HexKey as well if a round enclosure is preferred.

As Ken stated, he and his wife Rose will be at the Visalia show this 
week with demos of my enclosure line and Eric and Wayne have allowed me 
once again to display a few at the Dayton show in May. I will be working 
the booth all three days again this year and hope to meet many of you.

Please feel free to contact me through this email address for quotes on 
custom key enclosures or any questions about my products.

Thanks for the bandwidth.

73,
Dave W8FGU

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Re: [Elecraft] Elecraft SSB Net results (4/12/09)

[Phil and Christina]

We had a short and sparse SSB net again today (1800Z) on 14.316 MHz.  The
signal levels were down, and not very many stations were heard.  We had only
13
participants including net control and ran for only 18 minutes.  Attribute
that to the holiday and very weak conditions.  Discussions were on AGC
settings, Visalia rumors and filter offset impact to audio quality.
Remember that N1LQ is looking for posts to the reflector on AGC settings
used for different modes, etc.

Here is a list of the 13 participants:

Station NameQTH Rig S/N

N1LQDaveMA  K3  371
KM5QWindy   NM  K3  764
K4GCJ   Gerry   NC  K3  1597
KB0YH   Gus CO  K3  441
K4SOMarkVA  K3  2861
KV5ERob TX  K3  1417
AD5SX   PaulNM  Ten Tec Jupiter
KH7CMervHI  K3  2306
VA7OJ   AdamBC  Icom
KA0NCR  Arnie   NE  K3  185
W6JDB   Jay CA  K3  1288
WE0HMikeMN  K2  6698
NS7PPhilOR  K3  1826

Thanks to everybody who checked in.  Have a good week.

73,

Phil, NS7P

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Re: [Elecraft] K3: Optimizing filter offsets for SSB TX and RX

[Windy Dankoff]

YOU ARE RIGHT, Joe !!  I did my trials on USB. On LSB, I can tell by  
listening and re-adjusting that you are quite correct. It's back to  
zero for me.

:-|

I await further comments.
Windy


On Apr 12, 2009, at 5:10 PM, Joe Subich, W4TV wrote:

>
> If you crank in an offset with the 8 pole filters be sure
> you test it with BOTH USB and LSB.  An offset that enhances
> low frequency response in USB will reduce the LF response in
> LSB (enhance high frequency response) and vice versa.
>
> 73,
>
>   ... Joe, W4TV
>
>>
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[Elecraft] EQP 2009 Results

[Roger Stein]

CallNameQTH Score   Rig Serial #
W1SOC   Bob/N4BPFL   202,919K3  65
AB9VMikeIN   154,336K3  398
KB0YH   Gus CO   96,348 K3  441
W1QKDan CT   84,600 K3  683
W0UYTom KS   63,945 K2  6615
NZ8JTim OH   59,013 K3  1785
K9MMS   GaryIL   55,926 K3  351
NS7PPhilOR   54,145 K3  1836
K9ILBob TN   51,134 K3  2626
N1EUBarry   NY   50,078 K3  300
N0EVH   JohnMO   42,840 K3  1517
W7GBDon WA   30,590 K1  1648
W1UEDennis  MA   27,430 K3  2595
W7VXS   Don WA   26,404 K3  95
AA9FPeteIL   26,180 K2  4047
WB5BKL  NickTX   24,360 K3  231
K5MQWindy   NM   20,720 K3  764
W9LHG   JohnWI   19,396 K3  647
KN7TMarkWA   18,847 K3  1371
KL7IKV  LynnAK   17,136 K3  1968
F6EPO   Dom France   16,940 K1  2589
WW2RDavid   TX   15,750 K3  
W6RARandy   OR   15,510 K3  2171
W0PQDaveNE   15,302 K1  
W3TMZ   JackFL   14,246 K3  1169
N6TWLarry   OR   12,464 K3  
KS7DMikeFL   11,375 K2  4443
K4NVJ   Joe AL   11,067 K3  241
K2HYD   Ray NC   7,931  KX1 1740
SP3VZY  GregSP   6,552  K2  6451
WA1ABI  JohnRI   5,718  K3  795
NK6ADon CA   5,208  K2  1217
NI0CChuck   MO   4,620  K2  
K1ESE   JohnME   4,550  K3  
KJ4AOM  Ray KY   4,240  K2  6297
DJ8EW   Lothar  Germany  3,120  K3  1300
K6BBQ   Rem CA   2,576  K3  581
K6XXBob CA   2,475  K3  220
N6KRWayne   CA   2,340  K3  243
NX7FDaveNV   2,068  K3  2598
K6LAKen CA   1,926  
W6ZHPeteCA   1,862  KX1 384
N7KRT   JeffTX   1,680  K2  54771
AI3GDougMD   1,470  KX1 2024
PF5XEnnoNethrlnds1,246  K3  
WA7BOC  Roger   WA   1,206  K3  75
W1TFRalph   GA   1,190  K3  696
PA7FFrank   Nethrlnds1,053  K2  6019
VE7YU   Gordon  BC   852K3  
K0OKBob CA   700K3  2564
KF0FKen MO   560K3  
PA0RBO  Rob Nethrlnds   560 K2  2406
A8SAN   MikeOH   455
WA1ZBob NH   344K3  
LZ1VB   Val Bulgaria 315K3  516
W6HPK   Steve   CA   266K3  365
N1NNRoger   MA   175Ten Tec Pegasus 
WA3UCR  BillNC   140K2  4716
JA1NLX  Aki Japan48 K3  60
NN4XSteve   FL   45 K3  458
KD0RDavid   KS   40 FT-890  
WP4CW/6 Ted CA   25 K3  1803


The soapbox comments and additional data will appear later on the
Elecraft website.
62 contest results were received!  WP4CW made 25 qso's, no other data received.
See you all next year!!

73, Roger K7SJ K3 #75
your EQP scoring guy
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[Elecraft] an Elecraft Tale

[eric norris]

I know this list is for technical stuff, but I have to share this story.  

I rode my bicycle to a local park today, taking my KX1 into the field for the 
first time.  I threw a wire up into a tree about 20 ft and laid out a single 16 
ft radial.  The ATU tuned it up to 1:1 SWR.  I looked around and heard KE7LKW 
booming in abt 7.041.  I called him, he came right back.  I thought he was a 
local.  But he was in White Salmon, WA, and running a K2 at 5w!  I couldn't 
believe it!  I'm in Santa Clara, CA.  He QRP'ed down to 1w, I was using an 
8-cell AA pack, running about 3.7W.  We had a nice chat, I copied him through 
all the QSB and QRM.  When it was over, I packed up the KX1 into my little bike 
bag and rolled off.

This was as exciting as my first QSOs 36 years ago!  Unbelievable.  Thank you 
Elecraft!

Eric WD6DBM

P.S.  I still love my K3...and K2!  
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[Elecraft] Elecraft CW Net Report for April 12th & 13th, 2009

[Kevin Rock]

Good Evening,
   Forty meters was normal: noisy and full of QSB :)  But it was nice to hear 
folks from all over.  Afterward I would have enjoyed a walk in the quiet but 
the rain was pretty heavy.  Guess I need to invest in some rain gear this year 
so I can walk no matter what.  The heavy weather does keep the jay wars under 
control.  I wonder why Hitchcock did not use them as his models?  When there 
are scraps of potatoes, popcorn, or rice they enjoy my habit of putting out for 
them.  I also have two basins and a dog dish on the deck where they can wash 
and water themselves. 
   From the list of reports it appears the East, Colorado, Wyoming, and now 
here are getting cold.  Tomorrow night I am due for more snow.  The folks south 
of the border report 80 degree weather.  Currently the stream of clouds is 
aimed slightly north of me.  I did get one peek at the sun just before it set.  
I expect the folks in Washington are getting the heavy rain I received earlier 
today.  Those south of me did mention rain earlier in the week so this pattern 
is moving slowly northward.  Hopefully we will get to the southern part of this 
stream so it will be warm rain instead of snow.

   On to the lists => 

   On 14050 kHz at 2300z:
NO8V - John - MI - K3 - 820
K1THP - Dave - CT - K3 - 686
N0SS - Tom - MO - K3 - 008
W6ZH - Pete - CA - K3 - 657
K6PJV - Dale - CA - K3 - 1183* QNI #115 *
N6IB - Ron - CA - K1 - 1873

   On 7045.5 kHz at 0100z:
W6ZH - Pete - CA - K3 - 657
N0TA - John - CO - K3 - 994QNI #80!!!
K1THP - Dave - CT - K3 - 686
K9ZTV - Kent - MO - K3 - 21
NO8V - John - MI - K3 - 820QNI #60!!!
WC7S - Dale - WY - K2 - 4360
K6PJV - Dale - CA - K3 - 1183
N6IB - Ron - CA - K1 - 1873
K9DMV - Joe - IL - K2 - 5628
N0AR - Scott - MN - K2 - 4866* QNI #180 *
AD4CJ - Tim - TN - KX1 - 2075
W0RSR - Mike - CO - K2 - 5767  QNI #85!!!

   If there are any errors please email me with the corrections.  Now to get 
more wood inside while it is still light and the rain is lighter.  I hope you 
all had a Happy Easter.  Try to save some of those chocolate bunnies for later 
so you don't get sick!  I will watch the sun (remotely of course) over the next 
week to see if the next CME is aimed earthward.  I will also monitor the birds 
and flowers just so I know the area news.  Hopefully the trilliums in the wind 
blown area will come back.  There were a few hundred in that area in years 
past.  I do miss the calypso orchids but expect they will be dormant until 
conditions are just right; they are quite sensitive indicators.  
   Until next week stay well,
  73,
 Kevin.  KD5ONS  (Net Control Operator 5th Class)

-
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Re: [Elecraft] K3: Optimizing filter offsets for SSB TX and RX

[Joe Subich, W4TV]

If I wanted to check for filter offsets in the 8 pole 
filters, I think I would put them into the main RX 
and run response curves (using the K3 Filter Utility 
package) in both USB and LSB (or AFSK A NOR and REV). 
Set the DSP bandwidth to 4.00 and the center frequency 
to 1.50 (SSB) or 2.20 (AFSK A) to minimize the DSP 
contribution to the response.  

One set of data would need to be inverted and offset 
to compare the two responses but one could overlay 
the two curves and look for any asymmetry ...  I would 
check specifically to see if the -3 dB points were 
spaced equally above/below the center frequency. 

The skirts will not be symmetric in LSB/USB due to the 
sharp cutoff near the carrier in USB/LSB (1500 - 1400 
= 100 Hz).  Any offset may be more apparent using the 
AFSK A settings.  

73, 

   ... Joe, W4TV 
 






> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Windy Dankoff
> Sent: Sunday, April 12, 2009 10:28 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] K3: Optimizing filter offsets for SSB
> TX and RX
> 
> 
> YOU ARE RIGHT, Joe !!  I did my trials on USB. On LSB, I can tell by 
> listening and re-adjusting that you are quite correct. It's back to
> zero for me.
> 
> :-|
> 
> I await further comments.
> Windy
> 
> 
> On Apr 12, 2009, at 5:10 PM, Joe Subich, W4TV wrote:
> 
> >
> > If you crank in an offset with the 8 pole filters be sure you test
> > it with BOTH USB and LSB.  An offset that enhances low frequency 
> > response in USB will reduce the LF response in
> LSB (enhance
> > high frequency response) and vice versa.
> >
> > 73,
> >
> >   ... Joe, W4TV
> >
> >>
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Re: [Elecraft] K3: Audio Mixer

[W7TEA]

This is great Lyle.  I hope it makes it into a release soon as a menu option.

Thank you,  Gary  W7TEA


Hello Dave!

> I've already programmed one of the command tester macros for it.  Is 
> there an equivalent command to set it back to normal?

Assuming you mean Main Left, Sub Right (the same as you get when turning 
the Sub ON), try:

!bed1;

73,

Lyle KK7P

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View this message in context: 
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Sent from the Elecraft mailing list archive at Nabble.com.

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