[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Hello elecrafter,
I am thinking operating my KX3 in my Tesla and have some questions:
1.  Is it ok to direct drain DC supply from the cigarette lighter socket since 
there is no ignition system in the Tesla?
2.  The body of Tesla is aluminium alloy (if I am correct.  How can I ground a 
mobile whip to the car body?
Any advice is appreciated.
73
Johnny VR2XMC
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Re: [Elecraft] Heil Pro 7 K3s Setup

[Carl Jón Denbow]

Old ham lingo, meaning "fine business." A synonym might be A-OK or just plain 
excellent! ;-)

Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
 
c...@n8vz.com
www.n8vz.com
EM89wh
 
IRLP 4533   Echolink 116070
 
PSK and JT65 Forever!
===

> On Oct 18, 2016, at 11:44 PM, Lee Ormiston  wrote:
> 
> Please pardon me for asking, but in non-jargon, standard, western hemisphere 
> English; what does 'FB' mean?
> 
> Lee, N0RRL
> 
>> On Tue, Oct 18, 2016 at 8:04 PM, Carl Jón Denbow  wrote:
>> I need some help setting up a Heil Pro 7 with my K3s.  I have the physical 
>> connection to the back of the rIg OK.  I'm hearing through the earphones FB. 
>>  However, on TX I'm getting very little modulation.  If someone else on this 
>> reflector has made this setup, I'd appreciate them sharing their Config 
>> setup.
>> 
>> Thanks.
>> 
>> 73,
>> 
>> Carl
>> 
>> Sent from my iPhone
>> ===
>> Carl Jón Denbow, N8VZ
>> 17 Coventry Lane
>> Athens, Ohio 45701-3718
>> 
>> c...@n8vz.com
>> www.n8vz.com
>> EM89wh
>> 
>> IRLP 4533   Echolink 116070
>> 
>> PSK and JT65 Forever!
>> ===
>> 
>> 
>> 
>> Sent from my iPhone
>> ===
>> Carl Jón Denbow, N8VZ
>> 17 Coventry Lane
>> Athens, Ohio 45701-3718
>> 
>> c...@n8vz.com
>> www.n8vz.com
>> EM89wh
>> 
>> IRLP 4533   Echolink 116070
>> 
>> PSK and JT65 Forever!
>> ===
>> 
>> 
>> Sent from my iPhone
>> ===
>> Carl Jón Denbow, N8VZ
>> 17 Coventry Lane
>> Athens, Ohio 45701-3718
>> 
>> c...@n8vz.com
>> www.n8vz.com
>> EM89wh
>> 
>> IRLP 4533   Echolink 116070
>> 
>> PSK and JT65 Forever!
>> ===
>> __
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Re: [Elecraft] Heil Pro 7 K3s Setup

[Matt Zilmer]

Check p50 of the Owner's Manual, or alternatively, search for 
"Miscellaneous Setup" and read down from there, under the Mic Gain / 
Bias heading.


73,

matt W6NIA


On 10/18/2016 7:04 PM, Carl Jón Denbow wrote:

I need some help setting up a Heil Pro 7 with my K3s.  I have the physical 
connection to the back of the rIg OK.  I'm hearing through the earphones FB.  
However, on TX I'm getting very little modulation.  If someone else on this 
reflector has made this setup, I'd appreciate them sharing their Config setup.

Thanks.

73,

Carl

Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
  
c...@n8vz.com

www.n8vz.com
EM89wh
  
IRLP 4533   Echolink 116070
  
PSK and JT65 Forever!

===



Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
  
c...@n8vz.com

www.n8vz.com
EM89wh
  
IRLP 4533   Echolink 116070
  
PSK and JT65 Forever!

===


Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
  
c...@n8vz.com

www.n8vz.com
EM89wh
  
IRLP 4533   Echolink 116070
  
PSK and JT65 Forever!

===
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--
Always store beer in a dark place.  - R. Heinlein

Matt Zilmer, W6NIA
[Shiraz]

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[Elecraft] KAT500 altered behaviour

[Gary Gregory]

Got an interesting anomaly with KAT500 #007

Without making any changes to settings, cables, movement of equipment,
AuxBus or RS232 cables etc, it now has stopped "following" on QSY.
Band changes are working, first Dit will set tune to stored memory, checked
the KAT500 utility, boxes for QSY/Tune on Auto and Manual are ticked.
Manual and Auto tune works as expected and apart from the QSY feature I am
at a loss to see what has changed other than the obvious, not following the
VFO. Oh, and yes, I am on the correct VFO
Reloaded previous saved config, no change.
Any ideas anyone?
Gary
-- 



*Gary - VK1ZZ, K3NHLSkype: Gary.VK1ZZhttp://www.qsl.net/vk1zz
Motorhome Portable*
*Miss Behavin'*


*Elecraft K3KPA500FT  #18KAT500FT  #007*
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Re: [Elecraft] Speakers - Optimal Frequency Range?

[Edward R Cole]

Ron,

Interesting you bring this up as the KL7RA (sk) super contest station 
had acoustic tile on the ceiling in the room with six contest 
stations.  I noticed immediately how nice voice sounded without echos 
off hard surfaces. Floor was carpeted.


When I build my new ham 18x26 foot shack I am thinking of installing 
some acoustic tile over the operating position (probably not the 
entire ceiling).  Floor will either be sealed concrete or maybe tile 
(embedded radiant heat in the concrete).  But perhaps a area rug 
would dampen echos?


This is how radio station booths are designed. Person on the mic 
sounds like next to you in your living room vs in a barn.


re: speaker linearity and THD also important as freq range.  I'm 
keeping my eight-inch National speaker in the big metal box.  K3 
sounds very nice with it.  For very weak signals I will be trying out 
bluetooth direct to my hearing aids.  I spent more for the hearing 
aids than my K3 plus accessories.


73, Ed - KL7uW

Date: Mon, 17 Oct 2016 19:56:08 -0700
From: "Ron D'Eau Claire" 
To: 
Subject: Re: [Elecraft] Speakers - Optimal Frequency Range?

Of course the room in which the speaker is used has a huge effect too.

I dread to think we'd require anechoic chambers for Hamshacks!

73 Ron AC7AC



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

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Re: [Elecraft] K3S QST Article

[David Gilbert]

1.  W4ATK seems overly indignant about a "compliance" spec he doesn't 
even understand.


2.  And while I've been a bit chagrined about it myself in the past, 
anybody who doesn't understand that Elecraft's chosen business model is 
centered around portable gear (which includes motor home and cabin 
operations as opposed to just backpacking) hasn't been paying attention 
for the last 20 years.


Dave   AB7E



On 10/17/2016 4:47 PM, Kevin wrote:
Hmm, compliance with what? The rig meets Elecraft specs and since the 
FCC doesn't regulate TX IMD there is nothing to comply with.


The problem I have is accepting the status quo by Elecraft. Just 
because everybody else is around -30dB shouldn't mean Elecraft stop 
trying to do better. Let the portable/backpacking rigs use 12V MOSFETS 
and switch the desktop model K3(s) to higher voltage finals. Yeah, 
yeah, I know, the K3(s) is supposed to be portable capable. How many 
people take their K3(s) out in the sticks...ever...save Field Day?


Just because it has a carry strap doesn't mean it's a portable rig. My 
TS-520 has a beautiful leather strap. It weighs 37 pounds. Anybody 
know where I can rent a mule?



On 10/17/2016 3:41 PM, Jim Rogers wrote:
I have been a loyal Elecrafter for many years, and this seems to be 
somewhat similar to the VW diesel problem.


Elecraft has sold me a radio specifying it to be in compliance with 
specifications of IMD. Now you are telling me that I must bear the 
burden of time and expense to bring the device you specified and 
guaranteed to be in compliance, into compliance.


I built mine from a kit, so Elecraft you send me the necessary 
boards, modules, whatever to bring my K3s into compliance and I will 
return to you the defective boards,, modules, whatever. Then you can 
rework the defective boards for the next exchange. I will spend the 
time and effort of disassembly and re-assembly.


Jim, W4ATK

K-line, K2



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Re: [Elecraft] K3S QST Article

[Yngvi (TF3Y)]

This is an interesting thread but I wonder about the practicalities... Of
course we all want to emit a clean signal.

In which cases might the IMD be a problem? Running full power off a battery
with voltage dropping?
Running almost full power to drive an older type tube amp?

How fast does IMD deteriorate with increased power from the K3S or K3?

What are the IMD figures when running 20-25W driving a linear amp. such as
the KPA500?

73, Yngvi TF3Y

On Tue, Oct 18, 2016 at 7:58 AM, David Gilbert 
wrote:

>
> 1.  W4ATK seems overly indignant about a "compliance" spec he doesn't even
> understand.
>
> 2.  And while I've been a bit chagrined about it myself in the past,
> anybody who doesn't understand that Elecraft's chosen business model is
> centered around portable gear (which includes motor home and cabin
> operations as opposed to just backpacking) hasn't been paying attention for
> the last 20 years.
>
> Dave   AB7E
>
>
>
> On 10/17/2016 4:47 PM, Kevin wrote:
>
>> Hmm, compliance with what? The rig meets Elecraft specs and since the FCC
>> doesn't regulate TX IMD there is nothing to comply with.
>>
>> The problem I have is accepting the status quo by Elecraft. Just because
>> everybody else is around -30dB shouldn't mean Elecraft stop trying to do
>> better. Let the portable/backpacking rigs use 12V MOSFETS and switch the
>> desktop model K3(s) to higher voltage finals. Yeah, yeah, I know, the K3(s)
>> is supposed to be portable capable. How many people take their K3(s) out in
>> the sticks...ever...save Field Day?
>>
>> Just because it has a carry strap doesn't mean it's a portable rig. My
>> TS-520 has a beautiful leather strap. It weighs 37 pounds. Anybody know
>> where I can rent a mule?
>>
>>
>> On 10/17/2016 3:41 PM, Jim Rogers wrote:
>>
>>> I have been a loyal Elecrafter for many years, and this seems to be
>>> somewhat similar to the VW diesel problem.
>>>
>>> Elecraft has sold me a radio specifying it to be in compliance with
>>> specifications of IMD. Now you are telling me that I must bear the burden
>>> of time and expense to bring the device you specified and guaranteed to be
>>> in compliance, into compliance.
>>>
>>> I built mine from a kit, so Elecraft you send me the necessary boards,
>>> modules, whatever to bring my K3s into compliance and I will return to you
>>> the defective boards,, modules, whatever. Then you can rework the defective
>>> boards for the next exchange. I will spend the time and effort of
>>> disassembly and re-assembly.
>>>
>>> Jim, W4ATK
>>>
>>> K-line, K2
>>>
>>>
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Re: [Elecraft] K3S QST Article

[Joe Subich, W4TV]

On 10/17/2016 8:48 PM, Guy Olinger K2AV wrote:


What would be a practical way to actually introduce such a change? Lay out
all the specifics involved. Let's see your critical path item by item plan.
It's cheep and easy to just blurt out "they oughta go to 28 volts."


Provide an *optional* 28V PA that would drop into the existing space.
If heat and/or maximum gain are an issue, it does not need to be
specified for 200 W output ... 150/160 is good enough.

As to power supplies, Yaesu had a dual voltage switching supply for
the FT-1000MP MK V for many years.  A "KPA4" could certainly have its
own 28V connection to avoid changes to the K3/K3S (the present design
keeps 13.8V on the PA all the time).

Once one has a 28V option, the K3/K3S controller can be modified to
limit power from the 12V KPA3A/KPA3B to 80 watts max which should
further decrease IMD by keeping the FETs out of compression.  Most
published power transistor/FET data sheets show a sweet spot for
IMD at around 60 - 80% of the CW ratings.

73,

   ... Joe, W4TV



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Re: [Elecraft] K3S QST Article

[Bill Frantz]

Since June, my K3 went out for the California QSO Party (CQP), a 
special event station from Ely NV, and field day. Field day and 
CQP were solar powered battery. The Ely event ended up being 
battery because the generator was putting out S9 noise. The 
field day was QRP while CQP and Ely were at 100W. Being able to 
drop back to battery saved our bacon in Ely. For all these 
events, and in the shack, I am very glad to have a radio with 
the ease of use of the K3, which IMHO, is better than my KX3.


On 10/17/16 at 4:47 PM, ksto...@ac0h.net (Kevin) wrote:

How many people take their K3(s) out in the 
sticks...ever...save Field Day?

---
Bill Frantz| Can't fix stupid, but duct   | Periwinkle
(408)356-8506  | tape can muffle the sound... | 16345 
Englewood Ave
www.pwpconsult.com |   - Bill Liebman | Los Gatos, 
CA 95032


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[Elecraft] IF Crystal filters on eBay ?

[Petr, OK1RP/M0SIS]

Hi,

beware of purchasing the IF Crystal filters on eBay...

http://www.ebay.com/itm/500Hz-CW-Crystal-Filter-for-Elecraft-K3-with-8-crystals-/172338045381?hash=item282025e1c5:g:u4MAAOSwGtRX1PVT

http://www.ebay.com/itm/250Hz-CW-Crystal-Filter-for-Elecraft-K3-with-8-crystals/201666313563?_trksid=p2047675.c15.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D37115%26meid%3D7da2954521644b4dbfd000bf3e4f9fdd%26pid%3D15%26rk%3D1%26rkt%3D6%26sd%3D172338045381

...unbelievable. Even the soldering quality, used headers, etc. are giving
an illustration about this product clone itself so be careful.

73 - Petr, OK1RP






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Re: [Elecraft] [K3] WTB:KAT500

[Petr, OK1RP/M0SIS]

Hi,

It looks like I missed two of them last week because of my sickness  (w/o an
internet connection)... :)

73 - Petr, OK1RP



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Re: [Elecraft] SVGA/P3 Question -Waterfall Height Problem

[Irwin Darack]

Latest firmware installed

Thanks, Irwin KD3TB

On Monday, October 17, 2016, Guy Olinger K2AV  wrote:

> I do not have this problem, and I have P3/SVGA. Do you have all the latest
> production firmware? Or have you installed a beta?
>
> 73, Guy K2AV
>
> On Mon, Oct 17, 2016 at 5:59 PM, Irwin Darack  > wrote:
>
>> I have a P3 with the SVGA board installed + an external monitor.
>>
>> SVGA Monitor Height = Main
>> P3 = 30
>>
>> When ever I turn on the P3 (and monitor), I need to reset the Waterfall
>> Height.  The Height is fine on the P3, but takes up 3/4 of the screen on
>> the external monitor. The P3 remembers the original Height setting. To
>> reset the Waterfall Height on the external monitor, I need to go to the P3
>> Waterfall Height, make any change in the Height value, and then the
>> Waterfall Height on the external monitor corrects itself. Not sure why the
>> External Monitor requires this and if it has something to do with the
>> P3 SVGA board or a monitor setting?
>>
>> Thanks, Irwin KD3TB
>>
>>
>>
>>
>> --
>> Irwin KD3TB
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>>
>
>

-- 
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[Elecraft] Macro delay help

[K5MWR via Elecraft]

Admittedly a neophyte in learning the ins and outs of writing macros so 
forgive if this question has already been addressed.


I am trying to place macros in the P3 SVGA memories and have run into 
the problem that appears the K3 response time for doing band changes is 
preventing the ability to write a complex macro.  Is there a way to 
insert delays into the macro to allow band change (possibly other 
functions) to complete?


An example of what I am trying to do is below where a band change at the 
start results in having to run the macro twice to work.  It depends on 
what prior band was in use.  My desire is to switch from other 
bands/modes to specific operating frequencies and have the P3 span and 
center freq be specific.


BN03;MD1;FA729;BW0280;PC100;FT0;SB1;CP010;SWT13;SWT13;DNB7;#NB1;#SPN002000;#CTF 
725;


Appreciate any pointers.

Dave K5MWR
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Re: [Elecraft] K3S QST Article

[WILLIE BABER]

I like the size and weight of K3 also.  K3 fits right underneath the seat in 
front of you as a carry on, and K3 is as good or better than an Orion or 
FT-5000 that will not fit in there, hi!  What other contest radio can do this?  

Elecraft K2/100.  Yes, you can build it with the separate receive antenna and 
with computer control of the radio.

Of course K3 has other advantages, like diversity receive which is routine at 
n2cei 160m station in FL.  Plus there is a second K3 for S & P of mults.  This 
requires the K3 lock-out feature so that only one K3 is transmitting.

And there is remote control.  This year in CQ 160m contest  I couldn't make the 
trip to FL so the n2cei group sent to me the other half of the remote gear and 
I operated my leg of n2cei M/M 160m anyway, from Idaho.

Cool.

73, Will, wj9b, ID
occasional multi- op at big-gun ny4a NC and 160m superstation n2cei FL

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


On Tue, 10/18/16, Bill Frantz  wrote:

 Subject: Re: [Elecraft] K3S QST Article
 To: elecraft@mailman.qth.net
 Date: Tuesday, October 18, 2016, 7:04 AM
 
 Since June, my K3 went
 out for the California QSO Party (CQP), a 
 special event station from Ely NV, and field
 day. Field day and 
 CQP were solar powered
 battery. The Ely event ended up being 
 battery because the generator was putting out
 S9 noise. The 
 field day was QRP while CQP
 and Ely were at 100W. Being able to 
 drop
 back to battery saved our bacon in Ely. For all these 
 events, and in the shack, I am very glad to
 have a radio with 
 the ease of use of the
 K3, which IMHO, is better than my KX3.
 
 On 10/17/16 at 4:47 PM, ksto...@ac0h.net
 (Kevin) wrote:
 
 >How many
 people take their K3(s) out in the 
 >sticks...ever...save Field Day?
 ---
 Bill Frantz        | Can't fix stupid,
 but duct   | Periwinkle
 (408)356-8506      | tape can muffle the
 sound... | 16345 
 Englewood Ave
 www.pwpconsult.com |           
    - Bill Liebman | Los Gatos, 
 CA 95032
 
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Re: [Elecraft] K3S QST Article

[Don Wilhelm]

If the serial number is 10939 or greater, the change has already been 
installed.
At slightly lower serial numbers (10852 and above) it may or may not 
have been installed - it depends on whether it is a kit or factory 
assembly and whether it is a K3S/10 or K3S/100.
If you are in the 'questionable' serial number range, contact Elecraft 
support for detailed information.

If below S/N 10852, the change has not been installed.

73,
Don W3FPR

On 10/18/2016 10:29 AM, Bob Steding wrote:

Is this there a SN after which these upgrades are automatically included in
all K3S's?


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Re: [Elecraft] K3S QST Article

[Wayne Burdick]

We sent an earlier posting showing which serial numbers already had the new 
upgrades:

   KPA3A upgrade incorporated starting with serial number:

   Factory assembled:  s/n 10852
   Kit:s/n 10864

   LPA module upgrade incorporated starting with serial number:

   Factory assembled:  s/n 10920
   Kit:s/n 10939

73,
Wayne
N6KR


On Oct 18, 2016, at 7:52 AM, Don Wilhelm  wrote:

> If the serial number is 10939 or greater, the change has already been 
> installed.
> At slightly lower serial numbers (10852 and above) it may or may not have 
> been installed - it depends on whether it is a kit or factory assembly and 
> whether it is a K3S/10 or K3S/100.
> If you are in the 'questionable' serial number range, contact Elecraft 
> support for detailed information.
> If below S/N 10852, the change has not been installed.
> 
> 73,
> Don W3FPR
> 
> On 10/18/2016 10:29 AM, Bob Steding wrote:
>> Is this there a SN after which these upgrades are automatically included in
>> all K3S's?
>> 
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Re: [Elecraft] K3S QST Article

[Bob Steding]

Is this there a SN after which these upgrades are automatically included in
all K3S's?

On Mon, Oct 17, 2016 at 10:56 PM, Jan Erik Holm  wrote:

> Wayne,
>
> Is there a way to do this " at home" ? Since I´m in Sweden
> it might not be practical to send the radio all the way to
> California for this.
>
> 73 Jim SM2EKM
> --
> On 2016-10-17 02:25, Wayne Burdick wrote:
>
>> Knut,
>>
>> The K3S as originally shipped does not have a design flaw. Like virtually
>> all 12-V-class transceivers using currently available MOSFETs, it was
>> already right around -30 dBc or better, worst-case, for 3rd-order IMD. We
>> simply found a way to make it better by a few dB, and we're offering to
>> make this upgrade at no charge.
>>
>> 73,
>> Wayne
>> N6KR
>>
>>
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[Elecraft] FS: K3/F with KRX3A and more

[George Rebong]

Elecraft K3 HF/6 meters 100 watts with:
KAT3A Internal ATU with 2nd Ant. Jack,
KRX3A High Performance Subreceiver ,
KTCXO3-1 TCXO 1 PPM (0.5 typical),
KSYN3A Synthesizer Main , KSYN3A Second Synthesizer SUB ,
KXV3A RX Ant., 2nd Pre-Amp, IF Out and Xverter Interface ,
KFL3A-250 ,KFL3A-400 , KFL3A-1.8K, KFL3A-2.7K.
73CNC after market knobs,
NEW The Elecraft K3 Book by Fred Cady-KE7X
I also have the *KFL3B-FM   13 kHz FM/AM**, **8-pole* *filter*
* not installed.*Non Smoker. Nice condition. $2700 shipped to CONUS.

-- 
George Rebong
  KE6TE
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Re: [Elecraft] K3S QST Article

[Jim Brown]

Like Bill, I operate with several other hams for Field Day, CQP, 7QP 
(7th Area QSO Party), and VHF grid trips. Field Day is a single K3 for 
HF and a KX3 for the VHF station. We run 1A battery/solar. CQP and 7QP 
are multi-transmitter, K3/P3SVGA/KPA500 and run from Honda 2000i 
generators. These very nice generators DO produce some noise, and need a 
serious common mode choke on their output if they are close to antennas. 
(We operate from very quiet places in the middle of nowhere). When 
running power, we have double stubs on the output of the KPA500s feeding 
antennas for 80CW and 40CW, where the harmonics land on the next higher 
band.  There are photos of our setup from 7QP at k9yc.com/7QP.pdf


73, Jim K9YC

 On Tue,10/18/2016 6:04 AM, Bill Frantz wrote:
Since June, my K3 went out for the California QSO Party (CQP), a 
special event station from Ely NV, and field day. Field day and CQP 
were solar powered battery. 



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[Elecraft] K2 for sale

[Bborch]

> 
> K2 transceiver with 100 watt PA, Auto antenna tuner, Advance DSP bd, SSB bd, 
> also has audio mods for gain and 2.6khz BW, Clifton lab Z1000 IF buffer amp 
> with IF output jack, PLL bd for 600hz offset/spot, and finger dimple. 
> Excellent condition, sat on desktop. Serial number 3657. asking $1250, No 
> PayPal, Ship CONUS. 
> 
> AJ9Q,   Burl
> 
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Re: [Elecraft] K3S QST Article

[Jim Brown]

On Tue,10/18/2016 3:43 AM, Yngvi (TF3Y) wrote:

How fast does IMD deteriorate with increased power from the K3S or K3?

What are the IMD figures when running 20-25W driving a linear amp. such as
the KPA500?


I've looked carefully at this, and so has my neighbor Bob Wolbert, K6XX, 
who is an engineer at Elecraft and a serious contester. The first link 
shows my measurements, the second is a pdf of the slides for a talk that 
K6XX gave to NCCC three years ago. It includes measured data showing how 
TX power out and DC voltage affect IMD.  In my measurements, increased 
IMD causes CW bandwidth to increase. You can see that difference by 
comparing measurements at 30W, 50W, and 100W.


http://k9yc.com/P3_Spectrum_Measurements.pdf

http://k9yc.com/K6XXAmpTalk.pdf

73, Jim K9YC

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Re: [Elecraft] SVGA/P3 Question -Waterfall Height Problem

[Gerald Manthey]

Mine does this too, but only when displaying decoded text. I have to adjust it 
every time. 

> On Oct 18, 2016, at 11:01 AM, Irwin Darack  wrote:
> 
> Latest firmware installed
> 
> Thanks, Irwin KD3TB
> 
>> On Monday, October 17, 2016, Guy Olinger K2AV  wrote:
>> 
>> I do not have this problem, and I have P3/SVGA. Do you have all the latest
>> production firmware? Or have you installed a beta?
>> 
>> 73, Guy K2AV
>> 
>> On Mon, Oct 17, 2016 at 5:59 PM, Irwin Darack > > wrote:
>> 
>>> I have a P3 with the SVGA board installed + an external monitor.
>>> 
>>> SVGA Monitor Height = Main
>>> P3 = 30
>>> 
>>> When ever I turn on the P3 (and monitor), I need to reset the Waterfall
>>> Height.  The Height is fine on the P3, but takes up 3/4 of the screen on
>>> the external monitor. The P3 remembers the original Height setting. To
>>> reset the Waterfall Height on the external monitor, I need to go to the P3
>>> Waterfall Height, make any change in the Height value, and then the
>>> Waterfall Height on the external monitor corrects itself. Not sure why the
>>> External Monitor requires this and if it has something to do with the
>>> P3 SVGA board or a monitor setting?
>>> 
>>> Thanks, Irwin KD3TB
>>> 
>>> 
>>> 
>>> 
>>> --
>>> Irwin KD3TB
>>> __
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>>> 
>>> 
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>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to k2av@gmail.com
>>> 
>>> 
>> 
>> 
> 
> -- 
> Irwin KD3TB
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Re: [Elecraft] Speakers - Optimal Frequency Range?

[Jim Brown]

On Tue,10/18/2016 2:04 AM, Edward R Cole wrote:
Interesting you bring this up as the KL7RA (sk) super contest station 
had acoustic tile on the ceiling in the room with six contest 
stations.  I noticed immediately how nice voice sounded without echos 
off hard surfaces. Floor was carpeted.


Yes, this is VERY important in multi-op contest stations when operating 
SSB. The major issue is NOT sound on the air, but to minimize the sound 
heard by an operator while other operators are shouting into their mics. 
We contesters tend to get excited. Guys that have operated with the 
great operator Jerry, WB9Z, say that he doesn't need a mic!  I visited 
W3LPL several years ago and noted no sound treatment at all in a room 
having only hard surfaces. I urged extensive sound absorbing materials.


The room should NOT affect on the air sound if 1) you're working a mic 
within about 2 inches of your mouth, 2) TXEQ is set so that you're not 
transmitting below about 400 Hz, and 3) mic gain and compression are set 
so that you get no more than about 10 dB on voice peaks.


73, Jim K9YC


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Re: [Elecraft] K3S QST Article

[Eric Swartz - WA6HHQ, Elecraft]

Hi Jim - The 17 m harmonic problem was limited to the single review unit, which 
we corrected. All others shipped were/are OK on 17M.


73,

Eric
/elecraft.com/

On 10/18/2016 11:38 AM, Jim Rogers wrote:

To all who responded, certainly my friend Don and others

"During initial testing, we found that the second harmonic on 17 meters 
measured 42 dB below the fundamental, well below the specified >50 dB we 
measured on the other bands. We returned the transceiver to Elecraft for 
repair and they brought it into spec." Bob Allison, WB1GCM Assistant ARRL 
Laboratory Manager, QST (Nov 2016) p.50 sidebar.


Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB below 
carrier @ 100W (>60 dB on 6 meters).


Just sayin' if that is the case with my K3s s/n 10271, send me the necessary 
board/module(s) to correct the situation and I will be more than happy to make 
the replacement in my K3s and return the defective units to Elecraft for 
rework. Just don't ask me to send the whole radio back for something I can 
accomplish in the field.


I am not angry, perhaps a bit dissappointed.  I love my K-Line, which 
originated with a K3 and when the K3s came out, I elected to buy a K3s rather 
than upgrade my K3. Tell me my radio meets the spec and does not need repair 
to meet the spec and I am a happy camper.


Jim, W4ATK




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Re: [Elecraft] K3S QST Article

[Jim Rogers]

To all who responded, certainly my friend Don and others

"During initial testing, we found that the second harmonic on 17 meters 
measured 42 dB below the fundamental, well below the specified >50 dB we 
measured on the other bands. We returned the transceiver to Elecraft for 
repair and they brought it into spec." Bob Allison, WB1GCM Assistant 
ARRL Laboratory Manager, QST (Nov 2016) p.50 sidebar.


Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB 
below carrier @ 100W (>60 dB on 6 meters).


Just sayin' if that is the case with my K3s s/n 10271, send me the 
necessary board/module(s) to correct the situation and I will be more 
than happy to make the replacement in my K3s and return the defective 
units to Elecraft for rework. Just don't ask me to send the whole radio 
back for something I can accomplish in the field.


I am not angry, perhaps a bit dissappointed.  I love my K-Line, which 
originated with a K3 and when the K3s came out, I elected to buy a K3s 
rather than upgrade my K3. Tell me my radio meets the spec and does not 
need repair to meet the spec and I am a happy camper.


Jim, W4ATK




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Re: [Elecraft] K3S QST Article

[Yngvi (TF3Y)]

Many thanks for sharing this Jim.

Very ambitious and informative.

73, Yngvi TF3Y

On Tue, Oct 18, 2016 at 5:51 PM, Jim Brown 
wrote:

> On Tue,10/18/2016 3:43 AM, Yngvi (TF3Y) wrote:
>
>> How fast does IMD deteriorate with increased power from the K3S or K3?
>>
>> What are the IMD figures when running 20-25W driving a linear amp. such as
>> the KPA500?
>>
>
> I've looked carefully at this, and so has my neighbor Bob Wolbert, K6XX,
> who is an engineer at Elecraft and a serious contester. The first link
> shows my measurements, the second is a pdf of the slides for a talk that
> K6XX gave to NCCC three years ago. It includes measured data showing how TX
> power out and DC voltage affect IMD.  In my measurements, increased IMD
> causes CW bandwidth to increase. You can see that difference by comparing
> measurements at 30W, 50W, and 100W.
>
> http://k9yc.com/P3_Spectrum_Measurements.pdf
>
> http://k9yc.com/K6XXAmpTalk.pdf
>
> 73, Jim K9YC
>
>
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>



-- 
http://www.tf3y.net
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Re: [Elecraft] K3S QST Article

[Jim Rogers]

I have received a response to my posts from Eric and understand that the 
17M harmonic problem I was concerned about was limited to the test unit 
supplied to ARRL.


I am a happy camper!

Jim, W4ATK

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Re: [Elecraft] K3S QST Article

[Wes Stewart]

What method(s) did you use to verify the accuracy of your dB(c) numbers?  I get 
a little queasy when I see "-48.5 dBc."


On 10/18/2016 10:51 AM, Jim Brown wrote:

On Tue,10/18/2016 3:43 AM, Yngvi (TF3Y) wrote:

How fast does IMD deteriorate with increased power from the K3S or K3?

What are the IMD figures when running 20-25W driving a linear amp. such as
the KPA500?


I've looked carefully at this, and so has my neighbor Bob Wolbert, K6XX, who 
is an engineer at Elecraft and a serious contester. The first link shows my 
measurements, the second is a pdf of the slides for a talk that K6XX gave to 
NCCC three years ago. It includes measured data showing how TX power out and 
DC voltage affect IMD.  In my measurements, increased IMD causes CW bandwidth 
to increase. You can see that difference by comparing measurements at 30W, 
50W, and 100W.


http://k9yc.com/P3_Spectrum_Measurements.pdf

http://k9yc.com/K6XXAmpTalk.pdf

73, Jim K9YC


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Re: [Elecraft] SVGA/P3 Question -Waterfall Height Problem

[Irwin Darack]

P3 Firmware installed:
MCU = 1.60
SVGA=1.34
FPGA 0-4 = 1.04

I figured out the problem. When SVGA Data is turned on, the SVGA setting on
the P3 does not remember the SVGA P3 Waterfall Height. When SVGA is turned
off, it remembers the original SVGA Waterfall Height setting.   This may
have something to do with that I have the TX Data window screen size at the
lowest level and only use the RX Data Window on the P3/SVGA to copy CW/RTTY.

Irwin KD3TB

On Tue, Oct 18, 2016 at 2:05 PM, Gerald Manthey  wrote:

> Mine does this too, but only when displaying decoded text. I have to
> adjust it every time.
>
> > On Oct 18, 2016, at 11:01 AM, Irwin Darack  wrote:
> >
> > Latest firmware installed
> >
> > Thanks, Irwin KD3TB
> >
> >> On Monday, October 17, 2016, Guy Olinger K2AV 
> wrote:
> >>
> >> I do not have this problem, and I have P3/SVGA. Do you have all the
> latest
> >> production firmware? Or have you installed a beta?
> >>
> >> 73, Guy K2AV
> >>
> >> On Mon, Oct 17, 2016 at 5:59 PM, Irwin Darack  >> > wrote:
> >>
> >>> I have a P3 with the SVGA board installed + an external monitor.
> >>>
> >>> SVGA Monitor Height = Main
> >>> P3 = 30
> >>>
> >>> When ever I turn on the P3 (and monitor), I need to reset the Waterfall
> >>> Height.  The Height is fine on the P3, but takes up 3/4 of the screen
> on
> >>> the external monitor. The P3 remembers the original Height setting. To
> >>> reset the Waterfall Height on the external monitor, I need to go to
> the P3
> >>> Waterfall Height, make any change in the Height value, and then the
> >>> Waterfall Height on the external monitor corrects itself. Not sure why
> the
> >>> External Monitor requires this and if it has something to do with the
> >>> P3 SVGA board or a monitor setting?
> >>>
> >>> Thanks, Irwin KD3TB
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> Irwin KD3TB
> >>> __
> >>> Elecraft mailing list
> >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >>> Help: http://mailman.qth.net/mmfaq.htm
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> >>> 
> >>>
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> >>> Message delivered to k2av@gmail.com
> >>> 
> >>>
> >>
> >>
> >
> > --
> > Irwin KD3TB
> > __
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> > Message delivered to kc6...@gmail.com
>



-- 
Irwin KD3TB
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Re: [Elecraft] K3S QST Article

[n9tf]

Hi Eric, 
Just curious/devils advocate question. Was this unit that was reviewed, picked 
at random from stock at Elecraft? If so, or not, wouldn't it's performance be 
reflective of a population of other units manufactured? Just curious how you 
can say all others shipped were/are OK on 17, when the review unit was not? 
  
Just asking. 
  
Also curious, when radios are factory built and aligned, does Elecraft keep 
some kind of history data base of performance measurements of hose radios. kind 
od like a Certificate of Analysis/Performance, of specifications? 
  
Thanks and 73, Gene N9TF 
K3S 10057 

- Original Message -

From: "Eric Swartz - WA6HHQ, Elecraft"  
To: "Jim Rogers" , "elecraft"  
Sent: Tuesday, October 18, 2016 2:10:17 PM 
Subject: Re: [Elecraft] K3S QST Article 

Hi Jim - The 17 m harmonic problem was limited to the single review unit, which 
we corrected. All others shipped were/are OK on 17M. 

73, 

Eric 
/elecraft.com/ 

On 10/18/2016 11:38 AM, Jim Rogers wrote: 
> To all who responded, certainly my friend Don and others 
> 
> "During initial testing, we found that the second harmonic on 17 meters 
> measured 42 dB below the fundamental, well below the specified >50 dB we 
> measured on the other bands. We returned the transceiver to Elecraft for 
> repair and they brought it into spec." Bob Allison, WB1GCM Assistant ARRL 
> Laboratory Manager, QST (Nov 2016) p.50 sidebar. 
> 
> Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB below 
> carrier @ 100W (>60 dB on 6 meters). 
> 
> Just sayin' if that is the case with my K3s s/n 10271, send me the necessary 
> board/module(s) to correct the situation and I will be more than happy to 
> make 
> the replacement in my K3s and return the defective units to Elecraft for 
> rework. Just don't ask me to send the whole radio back for something I can 
> accomplish in the field. 
> 
> I am not angry, perhaps a bit dissappointed.  I love my K-Line, which 
> originated with a K3 and when the K3s came out, I elected to buy a K3s rather 
> than upgrade my K3. Tell me my radio meets the spec and does not need repair 
> to meet the spec and I am a happy camper. 
> 
> Jim, W4ATK 
> 
> 
> 
> 
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Re: [Elecraft] Speakers - Optimal Frequency Range?

[Phil Kane]

On 10/17/2016 9:47 PM, Walter Underwood wrote:

> In general, good hi-fi reproducers should be good communications reproducers.

I tried using a consumer-grade "hi-fi" speaker in a VHF/UHF mobile
installation and the highs drove me crazy.  Pulled out the original
Motorola limited-range speaker from the junk box and the installation
sounded like it was supposed to.  The Big Emm knew what they were doing.  :)

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] SVGA/P3 Question -Waterfall Height Problem

[n6hz]

Hi Irwin, 

Looks like you found a bug.  But as a work around I would suggest setting
the SVGA waterfall height to operate on its own, independent of the P3's
waterfall height.  To do that, press the MENU button on the front of the P3
and using the encoder, select SVGA Menu.  Then select 'WfEn' and change it
to 'Waterfall on'.   In this mode, the SVGA's waterfall is controlled
independently from the P3's waterfall.  To adjust the SVGA waterfall, use
SVGA Menu>WfHt.  To adjust the P3's waterfall, use the regular P3 menu
selection 'Waterfall'

Also note that in this 'separate mode'. the SVGA screen 'unfollows' the P3's 
waterfall average, waterfall color, and waterfall markers settings.  Refer
to page 44 of the current P3 manual (revision H, available on our website)
for more information. 

Kindly, 

Paul





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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[Dale Boresz]

Steve,

Just another data point ...

My PX3 exhibits the same behavior in a system that includes the KXPA100. I
see it happen when I twist the KX3's OFS knob to quickly QSY. However, if
I turn OFF the the KXPA100 via the KX3 "PA MODE" menu option, the PX3
responds immediately to a twist of the KX3 OFS knob. If I turn the KXPA100
"ON" again, a quick turn of OFS results in the original sluggish PX3
response. Perhaps communications between the KX3 and the KXPA100 is at a
higher priority than between the KX3 and the PX3.

73,

Dale - WA8SRA



> I have seen a similar issue with my PX3 but it may not be the same or it
> may be related to the root of the problem.
>
> What I notice is what "in the old days" would be switch bounce. What I
> notice (like you) is when I turn the knob fast the value bounces around
> but doesn't go anywhere.  I find that if I turn the knob real slow it
> will work.  The knob is an encoder and must be seeing  CW/CCW pulses out
> of sync or something like that?
>
> Does slow work?
>
> steve WB3LGC
>
>
> On 10/16/2016 12:34 PM, James Austin wrote:
>> My PX3 no longer responds to the knob being turned. The only indication
>> I
>> see when turning it is when the marker frequency is being displayed.
>> When
>> turning the knob, the displayed marker frequency bounces back and forth
>> between something like 14.050.80 and 14.050.85.
>>
>> The PX3 is otherwise functional.
>>
>> Any suggestions? I opened it up and all the solder connections for the
>> encoder are solid.
>>
>> 73,
>>
>> Jim/KA2RVO
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>
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Re: [Elecraft] K3S QST Article

[Eric Swartz - WA6HHQ, Elecraft]

Hi Gene,

The K3S was definitely a random production unit. The failure was quite unusual 
as it was an intermittent solder connection in that particular LPF. We rarely 
see that in this area on our professionally assembled and inspected boards. It 
must have been intermittent as it passed our automated board level and final K3S 
tests.


As a double check we tightened our visual inspection of that area of the board 
and reviewed our test procedures. So far no other failures like this one found.


73,
Eric
/elecraft.com/

On 10/18/2016 2:51 PM, n...@comcast.net wrote:

Hi Eric,
Just curious/devils advocate question. Was this unit that was reviewed, picked 
at random from stock at Elecraft? If so, or not, wouldn't it's performance be 
reflective of a population of other units manufactured? Just curious how you 
can say all others shipped were/are OK on 17, when the review unit was not?
   
Just asking.
   
Also curious, when radios are factory built and aligned, does Elecraft keep some kind of history data base of performance measurements of hose radios. kind od like a Certificate of Analysis/Performance, of specifications?
   
Thanks and 73, Gene N9TF

K3S 10057

- Original Message -

From: "Eric Swartz - WA6HHQ, Elecraft" 
To: "Jim Rogers" , "elecraft" 
Sent: Tuesday, October 18, 2016 2:10:17 PM
Subject: Re: [Elecraft] K3S QST Article

Hi Jim - The 17 m harmonic problem was limited to the single review unit, which
we corrected. All others shipped were/are OK on 17M.

73,

Eric
/elecraft.com/

On 10/18/2016 11:38 AM, Jim Rogers wrote:

To all who responded, certainly my friend Don and others

"During initial testing, we found that the second harmonic on 17 meters
measured 42 dB below the fundamental, well below the specified >50 dB we
measured on the other bands. We returned the transceiver to Elecraft for
repair and they brought it into spec." Bob Allison, WB1GCM Assistant ARRL
Laboratory Manager, QST (Nov 2016) p.50 sidebar.

Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB below
carrier @ 100W (>60 dB on 6 meters).

Just sayin' if that is the case with my K3s s/n 10271, send me the necessary
board/module(s) to correct the situation and I will be more than happy to make
the replacement in my K3s and return the defective units to Elecraft for
rework. Just don't ask me to send the whole radio back for something I can
accomplish in the field.

I am not angry, perhaps a bit dissappointed.  I love my K-Line, which
originated with a K3 and when the K3s came out, I elected to buy a K3s rather
than upgrade my K3. Tell me my radio meets the spec and does not need repair
to meet the spec and I am a happy camper.

Jim, W4ATK




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[Elecraft] KX3+PX3+KXPA100 for sale

[Jan]

Have for sale the KX3 line, all in a Pelican case
Options: Roofing Filter, Hand Mike, AT in the amplifier and cables
Nice condition ~ contact-of-line please ~ emuprof AT yahoo DOT com
Cheers, Jan K1ND
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Re: [Elecraft] K3S QST Article

[Jim Brown]

The data is accumulated peaks for 30-40 seconds. Reference for dBC is 
the peak of the waveform. That terminology is not appropriate, of 
course, for the SSB data.


73, Jim

On Tue,10/18/2016 12:53 PM, Wes Stewart wrote:
What method(s) did you use to verify the accuracy of your dB(c) 
numbers?  I get a little queasy when I see "-48.5 dBc."



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Re: [Elecraft] K3S QST Article

[Kevin]

That's harmonics which the FCC regulates to -43 dBc or better, better 
being a bigger number, on 160-10m, and -60dBc for 6 meters and up. That 
number IS regulated.


That is not the same as two tone TX IMD which is specified by Elecraft 
as around -30dB, and NOT regulated by the FCC, because most hams can't 
measure it accurately.



On 10/18/2016 2:53 PM, Wes Stewart wrote:
What method(s) did you use to verify the accuracy of your dB(c) 
numbers?  I get a little queasy when I see "-48.5 dBc."


On 10/18/2016 10:51 AM, Jim Brown wrote:

On Tue,10/18/2016 3:43 AM, Yngvi (TF3Y) wrote:

How fast does IMD deteriorate with increased power from the K3S or K3?

What are the IMD figures when running 20-25W driving a linear amp. 
such as

the KPA500?


I've looked carefully at this, and so has my neighbor Bob Wolbert, 
K6XX, who is an engineer at Elecraft and a serious contester. The 
first link shows my measurements, the second is a pdf of the slides 
for a talk that K6XX gave to NCCC three years ago. It includes 
measured data showing how TX power out and DC voltage affect IMD.  In 
my measurements, increased IMD causes CW bandwidth to increase. You 
can see that difference by comparing measurements at 30W, 50W, and 100W.


http://k9yc.com/P3_Spectrum_Measurements.pdf

http://k9yc.com/K6XXAmpTalk.pdf

73, Jim K9YC


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--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441


---
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Re: [Elecraft] K3S QST Article

[Wayne Burdick]

It certainly left the factory working on 17 meters, because we do a 100% test 
on all bands for TX harmonic suppression. My working theory is that the unit 
was damaged in shipping. We may never know.

73,
Wayne
N6KR



On Oct 18, 2016, at 2:51 PM, n...@comcast.net wrote:

> Hi Eric, 
> Just curious/devils advocate question. Was this unit that was reviewed, 
> picked at random from stock at Elecraft? If so, or not, wouldn't it's 
> performance be reflective of a population of other units manufactured? Just 
> curious how you can say all others shipped were/are OK on 17, when the review 
> unit was not? 
>   
> Just asking. 
>   
> Also curious, when radios are factory built and aligned, does Elecraft keep 
> some kind of history data base of performance measurements of hose radios. 
> kind od like a Certificate of Analysis/Performance, of specifications? 
>   
> Thanks and 73, Gene N9TF 
> K3S 10057 
> 
> - Original Message -
> 
> From: "Eric Swartz - WA6HHQ, Elecraft"  
> To: "Jim Rogers" , "elecraft"  
> Sent: Tuesday, October 18, 2016 2:10:17 PM 
> Subject: Re: [Elecraft] K3S QST Article 
> 
> Hi Jim - The 17 m harmonic problem was limited to the single review unit, 
> which 
> we corrected. All others shipped were/are OK on 17M. 
> 
> 73, 
> 
> Eric 
> /elecraft.com/ 
> 
> On 10/18/2016 11:38 AM, Jim Rogers wrote: 
>> To all who responded, certainly my friend Don and others 
>> 
>> "During initial testing, we found that the second harmonic on 17 meters 
>> measured 42 dB below the fundamental, well below the specified >50 dB we 
>> measured on the other bands. We returned the transceiver to Elecraft for 
>> repair and they brought it into spec." Bob Allison, WB1GCM Assistant ARRL 
>> Laboratory Manager, QST (Nov 2016) p.50 sidebar. 
>> 
>> Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB below 
>> carrier @ 100W (>60 dB on 6 meters). 
>> 
>> Just sayin' if that is the case with my K3s s/n 10271, send me the necessary 
>> board/module(s) to correct the situation and I will be more than happy to 
>> make 
>> the replacement in my K3s and return the defective units to Elecraft for 
>> rework. Just don't ask me to send the whole radio back for something I can 
>> accomplish in the field. 
>> 
>> I am not angry, perhaps a bit dissappointed.  I love my K-Line, which 
>> originated with a K3 and when the K3s came out, I elected to buy a K3s 
>> rather 
>> than upgrade my K3. Tell me my radio meets the spec and does not need repair 
>> to meet the spec and I am a happy camper. 
>> 
>> Jim, W4ATK 
>> 
>> 
>> 
>> 
>> __ 
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>> 
> 
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Re: [Elecraft] K3S QST Article

[Wayne Burdick]

And by the way, it *was* picked at random, in effect; we had no idea who 
purchased the unit, or when, until the ARRL gave us their first set of numbers.

73,
Wayne
N6KR


On Oct 18, 2016, at 2:51 PM, n...@comcast.net wrote:

> Hi Eric, 
> Just curious/devils advocate question. Was this unit that was reviewed, 
> picked at random from stock at Elecraft? If so, or not, wouldn't it's 
> performance be reflective of a population of other units manufactured? Just 
> curious how you can say all others shipped were/are OK on 17, when the review 
> unit was not? 
>   
> Just asking. 
>   
> Also curious, when radios are factory built and aligned, does Elecraft keep 
> some kind of history data base of performance measurements of hose radios. 
> kind od like a Certificate of Analysis/Performance, of specifications? 
>   
> Thanks and 73, Gene N9TF 
> K3S 10057 
> 
> - Original Message -
> 
> From: "Eric Swartz - WA6HHQ, Elecraft"  
> To: "Jim Rogers" , "elecraft"  
> Sent: Tuesday, October 18, 2016 2:10:17 PM 
> Subject: Re: [Elecraft] K3S QST Article 
> 
> Hi Jim - The 17 m harmonic problem was limited to the single review unit, 
> which 
> we corrected. All others shipped were/are OK on 17M. 
> 
> 73, 
> 
> Eric 
> /elecraft.com/ 
> 
> On 10/18/2016 11:38 AM, Jim Rogers wrote: 
>> To all who responded, certainly my friend Don and others 
>> 
>> "During initial testing, we found that the second harmonic on 17 meters 
>> measured 42 dB below the fundamental, well below the specified >50 dB we 
>> measured on the other bands. We returned the transceiver to Elecraft for 
>> repair and they brought it into spec." Bob Allison, WB1GCM Assistant ARRL 
>> Laboratory Manager, QST (Nov 2016) p.50 sidebar. 
>> 
>> Elecraft K3s Operators manual pg. 9 "Harmonic Spurious Outputs >50 dB below 
>> carrier @ 100W (>60 dB on 6 meters). 
>> 
>> Just sayin' if that is the case with my K3s s/n 10271, send me the necessary 
>> board/module(s) to correct the situation and I will be more than happy to 
>> make 
>> the replacement in my K3s and return the defective units to Elecraft for 
>> rework. Just don't ask me to send the whole radio back for something I can 
>> accomplish in the field. 
>> 
>> I am not angry, perhaps a bit dissappointed.  I love my K-Line, which 
>> originated with a K3 and when the K3s came out, I elected to buy a K3s 
>> rather 
>> than upgrade my K3. Tell me my radio meets the spec and does not need repair 
>> to meet the spec and I am a happy camper. 
>> 
>> Jim, W4ATK 
>> 
>> 
>> 
>> 
>> __ 
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>> Please help support this email list: http://www.qsl.net/donate.html 
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>> 
> 
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Re: [Elecraft] [PX3] Does not respond to the knob being rotated

[Steve]

I have seen a similar issue with my PX3 but it may not be the same or it 
may be related to the root of the problem.


What I notice is what "in the old days" would be switch bounce. What I 
notice (like you) is when I turn the knob fast the value bounces around 
but doesn't go anywhere.  I find that if I turn the knob real slow it 
will work.  The knob is an encoder and must be seeing  CW/CCW pulses out 
of sync or something like that?


Does slow work?

steve WB3LGC


On 10/16/2016 12:34 PM, James Austin wrote:

My PX3 no longer responds to the knob being turned. The only indication I
see when turning it is when the marker frequency is being displayed. When
turning the knob, the displayed marker frequency bounces back and forth
between something like 14.050.80 and 14.050.85.

The PX3 is otherwise functional.

Any suggestions? I opened it up and all the solder connections for the
encoder are solid.

73,

Jim/KA2RVO
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[Elecraft] Heil Pro 7 K3s Setup

[Carl Jón Denbow]

I need some help setting up a Heil Pro 7 with my K3s.  I have the physical 
connection to the back of the rIg OK.  I'm hearing through the earphones FB.  
However, on TX I'm getting very little modulation.  If someone else on this 
reflector has made this setup, I'd appreciate them sharing their Config setup.

Thanks.

73,

Carl

Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
 
c...@n8vz.com
www.n8vz.com
EM89wh
 
IRLP 4533   Echolink 116070
 
PSK and JT65 Forever!
===



Sent from my iPhone
===
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
 
c...@n8vz.com
www.n8vz.com
EM89wh
 
IRLP 4533   Echolink 116070
 
PSK and JT65 Forever!
===


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Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718
 
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www.n8vz.com
EM89wh
 
IRLP 4533   Echolink 116070
 
PSK and JT65 Forever!
===
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Re: [Elecraft] K3S QST Article

[Bill Leonard N0CU]

The official response I got from the factory is that to have any of the IMD
mods done, the radio needs to be sent in to the factory.

Bill  N0CU



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Re: [Elecraft] K3S QST Article

[Wes Stewart]

You didn't answer the question.

On 10/18/2016 4:47 PM, Jim Brown wrote:
The data is accumulated peaks for 30-40 seconds. Reference for dBC is the peak 
of the waveform. That terminology is not appropriate, of course, for the SSB 
data.


73, Jim

On Tue,10/18/2016 12:53 PM, Wes Stewart wrote:
What method(s) did you use to verify the accuracy of your dB(c) numbers?  I 
get a little queasy when I see "-48.5 dBc."


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