Re: [Elecraft] Virtual K4 application -- sneak preview

[Mark Goldberg]

It's not lost on me that it is a 4K resolution image. My Ham shack
monitor is a 43" 4K TV just waiting patiently for a K4 kit.

73,

Mark
W7MLG

On Sun, Jan 24, 2021 at 12:17 PM Wayne Burdick  wrote:
>
> Those of you who saw Eric's Friday presentation got a brief look at one part 
> of our K4 remote control effort -- a 100% emulation of the K4 front panel 
> called Virtual K4, or "VK4" for short. (Yes, it would even work on Fitzroy 
> Island if you had an internet connection.) This is in addition to direct 
> K4-to-K4 control.
>
> Th VK4 application will eventually run on multiple platforms, including pads 
> and laptops. It will support direct touch as well as mouse control, including 
> the very useful mouse wheel for adjusting simulated rotary controls. We're 
> fleshing out the various data streams including audio, panadapter, and CW 
> keying. Of course third-party developers are free to create their own 
> interfaces using the K4's extensive remote-control command set.
>
> If you missed it, here's a directly link to the Virtual K4 concept drawing. 
> You can also get to it on our K4 page, in the "K4 Updates" section.
>
> https://ftp.elecraft.com/K4/virtual_K4_app.jpg
>
> (The sharp-eyed will notice a few features in the app that don't appear on 
> the K4 front panel itself.)
>
> If you have comments or suggestions, feel free to send them to me directly or 
> discuss on your favorite list.
>
> Note: In general we post everything of interest to the primary Elecraft 
> reflector (this list). Postings to other lists may be more sporadic, so be 
> sure to check here as well.
>
> 73,
> Wayne
> N6KR
>
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[Elecraft] SSB Net 1-24-2021

[Eric Lanzl]

I am re submitting the stations for the SSB Net on 1-24-2021. Again, thank you 
to the Relay Stations. 
Eric WB9JNZ

Call  Name    State  Radio    Serial # QRP  
   Notes

WB9JNZ  Eric   IL  K3 4017  
    NetControl Station

WM6P  Steve GA    K3S   11453   
 RelayStation

N6PGQ    Bob   CA    K3 5891    
  

NC0JW    Jim    CO    KX3  1356 
 RelayStation

AE6JV Bill    NH    K3 6299 
 RelayStation

K1NW  Brian RI  K3 4974 
 RelayStation

NS7P    Phil    OR    K3 1826   
   RelayStation

ZL1PWD  Peter  NZ    K3 139     
   

KB9AVO Paul   IN K3S   11103    
    

K8NU  Carl   OH    K3S   10996      
  

AB7CE Roy   MT    K2/100  40    
  

WB4YBY Norm MS    K3S   0   
 

N7BDL    Terry AZ    K3S   10373    
    

W7SNR    Bob   AZ    K3 3413    
  

VE7XTA  Tom  BC    KX3  10393   
 

KC9JXJ    Hy IL  Kenwood   590 SG   
    

W9MNC   Mike  FL K3S   11864    
    

K7BRR    Bill    AZ    Yaesu    FTDX 101MP  
       

W4DML   Doug TN    K3 6433  
    

AC8UC    Ray   OH    KX3  8407  
    

W7QHD   Kurt   AZ    K2/100  1538   
   

N0MPM   Mike  IA K3S   10514    
    

K4HYJ Hank GA    K3S   11697    
    

N8SBE Dave MI K3S   11361   
 

K6VWE   Stan   MI K3 650    
    

K7JG    John  WA   KX3  3519    
  

KX9U  Ken   IN KX3  1179    
  

K2VJK Vern  NY    K3 6995   
   

KC5RIL   Matt   TX    KX3  7942 1Time Check 
In   

W9EJB Ed IN K3 1593 
 

KM6AVH    RJ  CA    Icom  7300  
    

N4NRW   Roger    SC K3 1318 
 

K0GFY    Hunter   CO    K3 6969 
 
  N9SRA  Steve    IL       Yeasu  FT891      
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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

Conditions were pretty good on both bands.  A little less noise on 40 
meters with a little more QSB than on 20 meters.  Winter weather 
prevailed across the Northern tier of states.  My snow depth depends on 
the snow line.  If it is low I can get feet of snow in a few days.  But, 
if it remains high enough, I will only get a few inches.  Deer at the 
bird feeder was in one report. I've seen squirrels climb on them but 
never deer.  However, corn fed deer goes well with carrots and potatoes.



  On 14050.5 kHz at 2200z:

W0CZ - Ken - ND

NO8V - John - MI

K6XK - Roy - IA

K4JPN - Steve - GA

K2HYD - Ray - VA

AB9V - Mike - IN


  On 7047.5 kHz at z:

W0CZ - Ken - ND

K6XK - Roy - IA

K6PJV - Dale - CA

K0DTJ - Brian - CA

KG7V - Marv - WA

W8OV - Dave - TX


I think February is a good month for studying seed catalogs.  The ground 
is too hard to till but you can begin making plans.  I will try more 
root crops this year since they grow better than leaf crops at this 
elevation.


   Until next week 73,

   Kevin.  KD5ONS



-















-
















“Every record has been destroyed or falsified, every book rewritten, 
every picture has been repainted, every statue and street building has 
been renamed, every date has been altered. And the process is continuing 
day by day and minute by minute. History has stopped. Nothing exists 
except an endless present in which the Party is always right.”  -- 
George Orwell


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Re: [Elecraft] Connecting PC to K3S

[weave...@usermail.com]

Hi Mike,

I use the winkeyer for a logging program interface (N3FJP, N1MM). The winkeyer 
output goes to the straight key jack on the K3S. The paddle plugs into the 
paddle jack on the rig. Otherwise it’s just one USB cable K3S to computer and 
you’re all set.

73,
Bill WE5P

Comfortably Numb

> On Jan 24, 2021, at 21:05, NJMike  wrote:
> 
> I am considering buying a K3S, waiting to hear from Elecraft if they are
> selling refurbished ones.  The website says they are...will also consider a
> used one.
> 
> I am currently using a K2.
> 
> So I'm trying to understand everything that may be relevant to me and my
> setup.
> 
> One thing is the connection from my laptop to the K3S.  The laptop has 2 USB
> ports.  One USB port is used with a wireless keyboard.  The other USB port
> is connected to a 4-port hub.  From the hub, one port goes to a Winkeyer. 
> Another port on the hub has the USB connector for a mouse.
> 
> I don't think I will need the Winkeyer with the K3S.  (Can someone confirm
> this?).  I assume I could still use the hub and now use a USB to USB mini
> cable to connect to the K3S.
> 
> The laptop also has a mini HDMI port.  Could I use a micro HDMI to mini USB
> to control the K3S?
> 
> Thanks,
> Mike NJ2OM
> 
> 
> 
> --
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[Elecraft] Connecting PC to K3S

[NJMike]

I am considering buying a K3S, waiting to hear from Elecraft if they are
selling refurbished ones.  The website says they are...will also consider a
used one.

I am currently using a K2.

So I'm trying to understand everything that may be relevant to me and my
setup.

One thing is the connection from my laptop to the K3S.  The laptop has 2 USB
ports.  One USB port is used with a wireless keyboard.  The other USB port
is connected to a 4-port hub.  From the hub, one port goes to a Winkeyer. 
Another port on the hub has the USB connector for a mouse.

I don't think I will need the Winkeyer with the K3S.  (Can someone confirm
this?).  I assume I could still use the hub and now use a USB to USB mini
cable to connect to the K3S.

The laptop also has a mini HDMI port.  Could I use a micro HDMI to mini USB
to control the K3S?

Thanks,
Mike NJ2OM



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Re: [Elecraft] Different focus

[Wayne Burdick]

Yes, this is in the works.

73,
Wayne
N6KR


> On Jan 24, 2021, at 5:32 PM, Bill Steffey NY9H  wrote:
> 
> I listened to Eric & Wayne proclamations , and did not hear either say that  
> the "subtractive " algorithms were going into the k4.  sooner or later.
> 
> I believe that that is what BHI uses 



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Re: [Elecraft] Different focus

[Bill Steffey NY9H]

I listened to Eric & Wayne proclamations , and did not hear either say 
that  the "subtractive " algorithms were going into the k4.  sooner or 
later.


I believe that that is what BHI uses 



bill

On 1/24/2021 12:07 PM, John Stengrevics wrote:

Evert,

As one who suffers from such noise, I too look forward to such improvements.

The K4 will have a “subtractive” noise reduction/noise blanking algorithm that 
essentially subtracts noise form a signal being copied.  During the recent Zoom 
call, I was told it would be available in about 3 months.

I think you can find a demonstration of this on YouTube somewhere.  It is very 
impressive.

73,

John
WA1EAZ


On Jan 24, 2021, at 11:35 AM,   wrote:

For many years dynamic range and other receiver performance figures (see 
Sherwood) and digital “features” like NB, NR, APF, Notch etc got a lot of 
attention (which was good).

The transition from hardware to software opened a new world of possibilities.

But ….

Today, most of us are battling near-field man made noise instead of receiver 
overload.

Reality tells us that this noise is not going to reduce the next decade or so.

Receivers will outperform competitors if they enable noise reduction and 
improve S/N ratio.

This will be a combi of hardware (antenna’s and receivers) and smart software 
solutions (algorithms etc.)



Just wondering if during the K4 design this “chance” was considered and if so, 
how this was implemented ?



73, Evert PA2KW



(waiting for the K4 kit)







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--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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Re: [Elecraft] DB15HD cable sopurce

[Rich]

I have been using these for years and they are fine. $7.56 back when I 
got them.


https://cablesondemand.com/15-pin-hd15-deluxe-hd-d-sub-cable-copper-shielded-male-female-cs-dsdhd15mf0

Rich

K3RWN

On 1/24/2021 18:54 PM, Jim Rhodes wrote:

Moving things in the shack so I am looking for a source for good quality
cable to run from my K3 to a home brew Y-box that I have been using for
years. Needs to have all 15 pins run through. Does anyone know of a source
for such aqn animal?


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Re: [Elecraft] DB15HD cable sopurce

[Bob Wilson, N6TV]

This appears is the same Amphenol cable that I supply with my devices, for
$12 ea. if purchased with S-BOX or Y-BOX ($10 for a 2.5-ft version).  I
also have a few longer ones.

However, the link points to a M/F cable, which works from my Y-BOX v2.x or
v3.x to AMP AUX, but should never be connected between K3 ACC and AMP AUX.
There must be no connection on pins 1, 4, 6, 7, or 8 when connecting a K3
or K4 ACC to an Elecraft amplifier's AUX connector, which is how the
KPAK3AUX cable is wired.

Furthermore, Jim probably needs M/M cable for a homebrew Y-BOX, not M/F.  I
have those too, in 2.5-ft and 5.0-ft lengths, but I prefer to provide
cables with a purchase of a Y-BOX or S-BOX, or to support those who already
own one, rather than to take time to ship individual cables.

73,
Bob, N6TV
https://bit.ly/Y-BOX
https://bit.ly/S-BOX


On Sun, Jan 24, 2021 at 4:32 PM Ken Widelitz  wrote:

> Hi Jim,
>
> I just had the same experience with a TopTen decoder and a K3. Be careful
> of the cables with the molded ends that don't screw-in and can't be
> connected to the K3 ACC port without the K3 screw nuts removed from the
> chassis. That makes the connection unstable.
>
> I recently ordered"
>
> https://www.amazon.com/gp/product/B00O072K4I/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8=1
>
> I have not yet received the cable.
>
> 73, Ken, K6LA / VY2TT
>
>
> On Sun, Jan 24, 2021 at 3:57 PM Jim Rhodes  wrote:
>
> > Moving things in the shack so I am looking for a source for good quality
> > cable to run from my K3 to a home brew Y-box that I have been using for
> > years. Needs to have all 15 pins run through. Does anyone know of a
> source
> > for such aqn animal?
> >
> > --
> > Jim K0XU
> > j...@rhodesend.net
> > __
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[Elecraft] 75 Meter SSB Net

[Paul Van Dyke]

I will TRY to start the net on 3.817 at 0100 UTC  that frequency is VERY
BUSY.
   3.822 seem clear right not (00:34 UTC)

Paul Van Dyke - KB9AVO
75 Meter Net Control
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Re: [Elecraft] DB15HD cable sopurce

[Ken Widelitz]

Hi Jim,

I just had the same experience with a TopTen decoder and a K3. Be careful
of the cables with the molded ends that don't screw-in and can't be
connected to the K3 ACC port without the K3 screw nuts removed from the
chassis. That makes the connection unstable.

I recently ordered"
https://www.amazon.com/gp/product/B00O072K4I/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8=1

I have not yet received the cable.

73, Ken, K6LA / VY2TT


On Sun, Jan 24, 2021 at 3:57 PM Jim Rhodes  wrote:

> Moving things in the shack so I am looking for a source for good quality
> cable to run from my K3 to a home brew Y-box that I have been using for
> years. Needs to have all 15 pins run through. Does anyone know of a source
> for such aqn animal?
>
> --
> Jim K0XU
> j...@rhodesend.net
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[Elecraft] SSB Net 1-24-2021

[Eric Lanzl]

Here is the list of stations checking in to the 20 meter net today. Thank you 
again to all the relay stations whose help is invaluable.20 net meets on 
Sundays at 1800Z on 14.303.5 alternate frequency is 13.310. 
Eric WB9JNZ

Call  Name    State  Radio    Serial # QRP  
   Notes

Eric  IL  K3 4017   
NetControl Station    

Steve    GA    K3S   11453     
RelayStation     

Bob  CA    K3 5891      
   

Jim   CO    KX3  1356   
RelayStation     

Bill   NH    K3 6299   
RelayStation     

Brian    RI  K3 4974   
RelayStation     

Phil   OR    K3 1826   
RelayStation     

Peter NZ K3 139     
  

Paul  IN  K3S   11103       
    

Carl  OH    K3S   10996     
  

Roy  MT    K2/100  40   
  

Norm    MS    K3S   0       
    

Terry    AZ K3S   10373     
  

Bob  AZ K3 3413     
    

Tom BC KX3  10393       
    

Hy    IL  Kenwood  590 SG   
  

Mike FL K3S   11864     
  

Bill   AZ Yaesu    FTDX 101MP   
      

Doug    TN K3 6433      
   

Ray  OH    KX3  8407    
     

Kurt  AZ K2/100  1538   
  

Mike IA  K3S   10514        
   

Hank    GA    K3S   11697       
    

Dave    MI K3S   11361      
     

Stan  MI K3 650     
  

John WA   KX3  3519     
    

Ken  IN  KX3  1179      
   

Vern NY    K3 6995      
   

Matt  TX KX3  7942  1 Time Check In 
      

Ed    IN  K3 1593   
  

RJ CA    Icom  7300     
    

Roger   SC K3 1318      
   

Hunter  CO    K3 6969   
  
Steve    IL Yeasu  FT891  
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[Elecraft] DB15HD cable sopurce

[Jim Rhodes]

Moving things in the shack so I am looking for a source for good quality
cable to run from my K3 to a home brew Y-box that I have been using for
years. Needs to have all 15 pins run through. Does anyone know of a source
for such aqn animal?

-- 
Jim K0XU
j...@rhodesend.net
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[Elecraft] K3S-KAT500 17M 18104 switch point

[HP]

Using K3S -KSAt500 and recommended Elecraft cables - -on17 meters at 18104 I 
have a KAT500 switch point I cannot move by selecting any cal frequencies. . 

Never noticed this until I tried FT4 which is set for 18104 in the WSJT canned 
freqs and with the auto offset to keep audio clean when it switches TX VFO to 
18103.5 the KAT cycles TX -then back on RX -- not needed for ant whatsoever its 
under 1.2:1 matched. across band . 

The 18014 switch point is still there with N1MM and WSJT not loaded - . AUTO or 
MAN -happens to be ant 2 .(BTW swr is better than 1.2:1 across band with one 
tuning point. If I train at 18106 on the dummy load - (ANT3) its not there but 
the swr is under 1.2:1 on DL matched. 

Yes I know the K3s/KAT/KPA is supposed to be protecting against high swr during 
switching - but it doesnt know that until it puts out a Rf pulse. 


Bottom line how do I move the 18104 KAT500 switch point ? 

Another thing I noticed as I was going across band the 18168 band edge does NOT 
keep from transmitting above 18168 
if you go to 18167..99 it txes -then lift key and go to 18174 or whatever it tx 
es full power with key down one time,lift key then the band end is functional 
and no tx. 


Hank K7HP 
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Re: [Elecraft] Antenna Support Poles, Mil-Surplus SOLD

[James Bennett via Elecraft]

That was fast - the poles and bag are sold.

Jim Bennett
Folsom, CA


K7TXA (ex W6JHB as of 1/22/2021)

Being retired doesn't mean I'm not part of the work force - just that I'm not 
forced to work!



> On Jan 24, 2021, at 3:30 PM, James Bennett via Elecraft 
>  wrote:
> 
> In my continuing efforts to downsize before moving out of state, I’m trying 
> to sell 23 military surplus fiberglass antenna / tent support poles, in bag. 
> They are about 2-1/2” inches OD and slip together with a 3” or so overlap. 
> Each tube is approximately 44 “ long. I used these poles for almost 10 years 
> to support a 110 foot run of 600-ohm ladder line from one side of our house 
> to the other and up to the top of a 45’ mast. They are quite sturdy and are 
> in fairly good shape.
> 
> Total weight of the poles and bag is about 50-some pounds, so I’m not going 
> to ship them, unless you want to pay the Post Office some outrageous amount 
> of money. That said, if you live anywhere in the Sacramento, Folsom, 
> Roseville, Rancho Cordova, etc. area you can pick them up and they will run 
> you only $25.
> 
> Photos may be seen at:
> 
> https://imgsrv.sellersourcebook.com/users/121967/poles1.jpg 
> 
> 
> https://imgsrv.sellersourcebook.com/users/121967/poles2.jpg 
> 
> 
> Contact me off-list if you are interested.  
> 
> 
> Jim Bennett
> Folsom, CA
> 
> K7TXA (ex W6JHB as of 1/22/2021)
> 
> Being retired doesn't mean I'm not part of the work force - just that I'm not 
> forced to work!
> 
> 
> 
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[Elecraft] FS: Antenna Support Poles, Mil-Surplus

[James Bennett via Elecraft]

In my continuing efforts to downsize before moving out of state, I’m trying to 
sell 23 military surplus fiberglass antenna / tent support poles, in bag. They 
are about 2-1/2” inches OD and slip together with a 3” or so overlap. Each tube 
is approximately 44 “ long. I used these poles for almost 10 years to support a 
110 foot run of 600-ohm ladder line from one side of our house to the other and 
up to the top of a 45’ mast. They are quite sturdy and are in fairly good shape.

Total weight of the poles and bag is about 50-some pounds, so I’m not going to 
ship them, unless you want to pay the Post Office some outrageous amount of 
money. That said, if you live anywhere in the Sacramento, Folsom, Roseville, 
Rancho Cordova, etc. area you can pick them up and they will run you only $25.

Photos may be seen at:

https://imgsrv.sellersourcebook.com/users/121967/poles1.jpg 


https://imgsrv.sellersourcebook.com/users/121967/poles2.jpg 


Contact me off-list if you are interested.  


Jim Bennett
Folsom, CA

K7TXA (ex W6JHB as of 1/22/2021)

Being retired doesn't mean I'm not part of the work force - just that I'm not 
forced to work!



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[Elecraft] K2 / HR50 combo FS

[barry halterman]

Greetings, I have available a K2/10, SN 7954, built July 2020. Installed
are the K2 I/O board and the K2 AFIL. With the K2, also including the hard
rock 50 amplifier. The K2 was tested and aligned by Elecraft in October.
Asking $1100 for the package. Shipping is negotiable. Please contact me off
the reflector.
Thanks
Barry
K3BO
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[Elecraft] Controlling KPA500/KTA500 Remotely

[Dick Bingham]

I'm still waiting for my KPA500 and KTA-500 order to be shipped and am
wondering IF it is possible to remotely
turn ON/OFF a KPA-500 from my computer running PowerSDR OpenHPSDR_mRX_PS
v3.4.7 software ?
(APACHE-LABS ANAN-7000dle SDR in another building connected thru Ethernet
cable to my operating location)

73 Dick/w7wkr at CN97uj
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Re: [Elecraft] Virtual K4 application -- sneak preview

[Wayne Burdick]

> Tom  wrote:
> 
> Way cool screen saver Wayne !  Thank you!

My pleasure. Perhaps it would work as a stained-glass window, too :)

Wayne
N6KR


>> https://ftp.elecraft.com/K4/virtual_K4_app.jpg  
>> 


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Re: [Elecraft] Virtual K4 application -- sneak preview

[Tom]

Way cool screen saver Wayne !  Thank you!


 https://ftp.elecraft.com/K4/virtual_K4_app.jpg  


73,
Wayne
N6KR



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Re: [Elecraft] Automatic lightning protection for radios

[Edward R Cole]

This is a little bit "tongue-in-cheek" reply:

Only sure way to avoid lightning is to live where there is no lightning.

I happen to live in such a location.  We hear thunder every other 
year and see.see/hear lightning about once out of four years.


Odds of an earthquake or volcano eruption is much higher (in Alaska 
on the "ring of fire") with four active volcanoes within sight 
(closest is 50-mile away and has erupted three time while I have 
lived up here).  There are 141 active volcanoes in Alaska roughly 
aligned along the Aleutian island chain and Alaska Peninsula.  I live 
at the  northern end of that.


The climate is maritime as I live two miles from Cook Inlet which is 
a 200+ mile long salt-water sound extending from the Northern 
Pacific.  So we do not get the extremes in temperature that produces 
lightning (summer average 55-65F).  Only 70-miles north Anchorage 
gets more of that weather.  Interior AK gets hundreds of strikes per 
day in summer.


location-location

73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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[Elecraft] Virtual K4 application -- sneak preview

[Wayne Burdick]

Those of you who saw Eric's Friday presentation got a brief look at one part of 
our K4 remote control effort -- a 100% emulation of the K4 front panel called 
Virtual K4, or "VK4" for short. (Yes, it would even work on Fitzroy Island if 
you had an internet connection.) This is in addition to direct K4-to-K4 control.

Th VK4 application will eventually run on multiple platforms, including pads 
and laptops. It will support direct touch as well as mouse control, including 
the very useful mouse wheel for adjusting simulated rotary controls. We're 
fleshing out the various data streams including audio, panadapter, and CW 
keying. Of course third-party developers are free to create their own 
interfaces using the K4's extensive remote-control command set.

If you missed it, here's a directly link to the Virtual K4 concept drawing. You 
can also get to it on our K4 page, in the "K4 Updates" section.

https://ftp.elecraft.com/K4/virtual_K4_app.jpg

(The sharp-eyed will notice a few features in the app that don't appear on the 
K4 front panel itself.)

If you have comments or suggestions, feel free to send them to me directly or 
discuss on your favorite list. 

Note: In general we post everything of interest to the primary Elecraft 
reflector (this list). Postings to other lists may be more sporadic, so be sure 
to check here as well.

73,
Wayne
N6KR

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Re: [Elecraft] K3 Utility

[Grant Youngman]

On the website, go to Support/Firmware  Pick the K-Line on the list, 
and then K3S.  Scroll down.

It’s used for firmware upgrades, configuration save/restore and several other 
useful things, such as filter assignment by mode, etc.

Grant NQ5T



> On Jan 24, 2021, at 1:53 PM, NJMike  wrote:
> 
> I've seen on the website a couple references to something called "K3
> Utility".  I can't find anything that actually explains what it is but I
> think it has something to do with installing firmware upgrades.
> 
> Thanks,
> Mike NJ2OM
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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[Elecraft] Looking for a K3S

[NJMike]

I am considering buying a K3S.  I currently have a K2.  I know Elecraft is
not building new ones so I will be looking for a used one.

Anyone who has one that might be interested in selling, please email me
directly.

Thanks,
Mike NJ2OM



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[Elecraft] K3 Utility

[NJMike]

I've seen on the website a couple references to something called "K3
Utility".  I can't find anything that actually explains what it is but I
think it has something to do with installing firmware upgrades.

Thanks,
Mike NJ2OM



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Re: [Elecraft] Different focus

[Wayne Burdick]

> On Jan 24, 2021, at 9:59 AM, Bill Coleman  wrote:
> 
> But wouldn’t a higher performance A/D converter also mean you’d have to bring 
> forth more DSP computing power? 
> 
> Is there that much spare DSP computing power in the K4? Could you double the 
> sample rate and still handle all the bits?
> 
> (Or did we have some other definition of “higher-performance”?)

Yes: More bits than 16, more monotonicity in the LSBs, general improvement in 
SFDR, or lower internal noise.

Adding more ADC bits does not require more DSP horsepower. The DSP is 32 bit 
floating point.

Wayne
N6KR



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Re: [Elecraft] Different focus

[Bill Coleman]

But wouldn’t a higher performance A/D converter also mean you’d have to bring 
forth more DSP computing power? 

Because, whether you increase the sample rate or the number of bits per sample, 
it’s more data to process every second. 

Is there that much spare DSP computing power in the K4? Could you double the 
sample rate and still handle all the bits?

(Or did we have some other definition of “higher-performance”?)

> On Jan 24, 2021, at 11:59 AM, Wayne Burdick  wrote:
> 
> It's also a very modular radio. For example, if a higher-performance A-to-D 
> converter becomes available in the future, we'll be able to offer an upgraded 
> digital downconversion module.

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] Different focus

[John Stengrevics]

Evert,

As one who suffers from such noise, I too look forward to such improvements.

The K4 will have a “subtractive” noise reduction/noise blanking algorithm that 
essentially subtracts noise form a signal being copied.  During the recent Zoom 
call, I was told it would be available in about 3 months.

I think you can find a demonstration of this on YouTube somewhere.  It is very 
impressive.

73,

John 
WA1EAZ

> On Jan 24, 2021, at 11:35 AM,   wrote:
> 
> For many years dynamic range and other receiver performance figures (see 
> Sherwood) and digital “features” like NB, NR, APF, Notch etc got a lot of 
> attention (which was good).
> 
> The transition from hardware to software opened a new world of possibilities.
> 
> But ….
> 
> Today, most of us are battling near-field man made noise instead of receiver 
> overload.
> 
> Reality tells us that this noise is not going to reduce the next decade or so.
> 
> Receivers will outperform competitors if they enable noise reduction and 
> improve S/N ratio.
> 
> This will be a combi of hardware (antenna’s and receivers) and smart software 
> solutions (algorithms etc.)
> 
> 
> 
> Just wondering if during the K4 design this “chance” was considered and if 
> so, how this was implemented ?
> 
> 
> 
> 73, Evert PA2KW
> 
> 
> 
> (waiting for the K4 kit)
> 
> 
> 
> 
> 
> 
> 
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Re: [Elecraft] Different focus

[Wayne Burdick]

The short answer is "yes." 

In the K4 it takes the form of distributed processing, including multiple 
high-speed FPGAs in the demodulation path, a new DSP that's twice as fast any 
we've used before, and virtually unlimited resources in our main processor. 

It's also a very modular radio. For example, if a higher-performance A-to-D 
converter becomes available in the future, we'll be able to offer an upgraded 
digital downconversion module.

73,
Wayne
N6KR


> On Jan 24, 2021, at 8:35 AM,   wrote:
> 
> For many years dynamic range and other receiver performance figures (see 
> Sherwood) and digital “features” like NB, NR, APF, Notch etc got a lot of 
> attention (which was good).
> 
> The transition from hardware to software opened a new world of possibilities.
> 
> But ….
> 
> Today, most of us are battling near-field man made noise instead of receiver 
> overload.
> 
> Reality tells us that this noise is not going to reduce the next decade or so.
> 
> Receivers will outperform competitors if they enable noise reduction and 
> improve S/N ratio.
> 
> This will be a combi of hardware (antenna’s and receivers) and smart software 
> solutions (algorithms etc.)
> 
> 
> 
> Just wondering if during the K4 design this “chance” was considered and if 
> so, how this was implemented ?
> 
> 
> 
> 73, Evert PA2KW
> 
> 
> 
> (waiting for the K4 kit)
> 
> 
> 
> 
> 
> 
> 
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[Elecraft] Using a 3 pin XLR Mic on a K2

[Aaron K5ATG]

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[Elecraft] Different focus

[evert]

For many years dynamic range and other receiver performance figures (see 
Sherwood) and digital “features” like NB, NR, APF, Notch etc got a lot of 
attention (which was good).

The transition from hardware to software opened a new world of possibilities.

But ….

Today, most of us are battling near-field man made noise instead of receiver 
overload.

Reality tells us that this noise is not going to reduce the next decade or so.

Receivers will outperform competitors if they enable noise reduction and 
improve S/N ratio.

This will be a combi of hardware (antenna’s and receivers) and smart software 
solutions (algorithms etc.)

 

Just wondering if during the K4 design this “chance” was considered and if so, 
how this was implemented ?

 

73, Evert PA2KW

 

(waiting for the K4 kit)

 

 

 

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[Elecraft] KYR-SPT/MIC knob error

[post]

Hello,

 

Have a new Elecraft KX2 SN:04005 MCU : 03.00 DSP 01.52.

 

In CW mode it's not possible to change WPM, and in SSB it's not possible to 

change MIC  and It's not possible to change PWR by the KYR-SPT/MIC knob.

 

When I push the knob In USB or LSB I get MIC 0, but I'm not able to change

the MIC gain by turning the knob.

 

When I push the knob In CW I get WPM 18, but I'm not able to change

The WPM by turning the knob.

 

The same happens with the PWR. Set to 5W now, not able to change It.

 

Anyone else who have had this problem?

 

Regards

Tor

LA9XGA 

 

 

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Re: [Elecraft] K4 Receive Filter question

[Jim Brown]

On 1/19/2021 5:24 PM, Bill Frantz wrote:
one of the most important performance characteristics, which is the user 
interface (UI). How easy it the radio to use?


YUP! And like Bill, I find the Elecraft UI excellent, VERY intuitive for 
users of RADIOS, with anything you need while USING them to be on knobs 
or switches on the front panel, with once-in-a-while tweaks like VOX and 
ANTI-VOX, or choosing between  mic or mic plus computer playback for a 
contest, do I want my mic on the front or rear panel, and what 
accessories or options are in my radio are on a top level menu.


73, Jim K9YC




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Re: [Elecraft] Automatic lightning protection for radios, .... an off the wall idea

[Jim Brown]

On 1/19/2021 7:08 AM, Louandzip via Elecraft wrote:

  there are quite a few.


Last I looked (retired 10 years), there were two in the US, UL and ETL, 
and CSA in Canada. There were reciprocal agreements between UL and CSA, 
and UL, CSA, and ETL were recognized in the US. That's not "quite a 
few," unless we include those on other continents.


73, Jim K9YC
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