Date   

Re: [Elecraft_K3] Audio Protection Assembly and parts list question

Mel Farrer <farrerfolks@...>
 

Thanks Dave, but that is the general index and not detailed for ALL of the applicable parts associated with the K3 PCBs by Elecraft part number with the "E" prefix.  It has some but not all.  I ordered the PCB by a "E" prefix.  The problem is that if you do a FIND search no E part numbers come up!!!!


Mel, K6KBE



On Sunday, December 22, 2013 4:44 PM, David McAnally wrote:
 
I do not have experience with this mod, but it appears the instructions may be at <http://www.elecraft.com/K3/k3_app_notes.htm> under <http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf>

Reference the K3 assembly manual for the parts list. Appendix A I think.  <http://www.elecraft.com/K2_Manual_Download_Page.htm#K3>


Regards,
David McAnally
My Public PGP Key ID: 260CB2B6


On Sun, Dec 22, 2013 at 4:08 PM, <farrerfolks@...> wrote:


After the diagnoses that the U1 had failed and contacting Elecraft for the protection PCB, it arrived without any installation instructions??????  Unless someone has them I will have to wait until tomorrow and contact them direct........

Second, I have exhausted all efforts to locate a K3 parts list.  Not withstanding going through endless menus without luck trying to find any reference to the "EXXXXXX" part ordering information.  While ordering the above assembly I also ordered the U1 by a number given me.  No joy, the part sent was not U1. 

Anyone found the EXXXXXXX parts list on their web site?  I know it must be there. 

Mel, K6KBE





Re: [Elecraft_K3] Audio Protection Assembly and parts list question

WD5M David M.
 

I do not have experience with this mod, but it appears the instructions may be at <http://www.elecraft.com/K3/k3_app_notes.htm> under <http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf>

Reference the K3 assembly manual for the parts list. Appendix A I think.  <http://www.elecraft.com/K2_Manual_Download_Page.htm#K3>


Regards,
David McAnally
My Public PGP Key ID: 260CB2B6


On Sun, Dec 22, 2013 at 4:08 PM, <farrerfolks@...> wrote:


After the diagnoses that the U1 had failed and contacting Elecraft for the protection PCB, it arrived without any installation instructions??????  Unless someone has them I will have to wait until tomorrow and contact them direct........

Second, I have exhausted all efforts to locate a K3 parts list.  Not withstanding going through endless menus without luck trying to find any reference to the "EXXXXXX" part ordering information.  While ordering the above assembly I also ordered the U1 by a number given me.  No joy, the part sent was not U1. 

Anyone found the EXXXXXXX parts list on their web site?  I know it must be there. 

Mel, K6KBE



Audio Protection Assembly and parts list question

farrerfolks@...
 

After the diagnoses that the U1 had failed and contacting Elecraft for the protection PCB, it arrived without any installation instructions??????  Unless someone has them I will have to wait until tomorrow and contact them direct........

Second, I have exhausted all efforts to locate a K3 parts list.  Not withstanding going through endless menus without luck trying to find any reference to the "EXXXXXX" part ordering information.  While ordering the above assembly I also ordered the U1 by a number given me.  No joy, the part sent was not U1. 

Anyone found the EXXXXXXX parts list on their web site?  I know it must be there. 

Mel, K6KBE


Re: GPS 10 MHz reference

James Patterson, M1DST
 

I also drive mine with a Trimble Thunderbolt, distribution amp and a 4x20 LCD monitor which displays a very accurate clock and includes an NTP server.  I had fun working on the project.


For details, see my website...


or 


I've open sourced the hardware and software although there is a kit available to make it easier for people.

James
M1DST

(apologies if this dual posts, it never showed up in my stream so I've tried again using the website)


Re: [Elecraft_K3] External Speakers

Dale J. <dj2001x@...>
 

Hi Jay,

Nice speakers they are. How are they for RFI?

I've tried M-Audio, but tend to get a little RF in them and talkback which is rather disrupting. I'm using a couple of four inch speakers from AES, not the best sounding, but they get the job done. I mostly use a headset and the speakers when I'm monitoring and on the phone or typing on my computer...

73
Dale, K9VUJ

On 22, Dec 2013, at 9:21, Jay Terleski <jayt@...> wrote:



I find these small powered speakers are just the ticket for the K3 audio. Plenty of power to fill the room when I am working on other stuff.

http://www.monoprice.com/Product/?c_id=115&cp_id=11504&cs_id=1150402&p_id=605300&seq=1&format=1#largeimage

Not expensive but sound very nice. I route my PC audio through them too.

--
Jay Terleski
Array Solutions
214 954 7140




Re: GPS 10 MHz reference

James Patterson, M1DST
 

I also drive mine with a Trimble Thunderbolt, distribution amp and a 4x20 LCD monitor which displays a very accurate clock and includes an NTP server.

For details, see my website...


or 


I've open sourced the hardware and software although there is a kit available to make it easier for people.

James
M1DST


Re: [Elecraft_K3] External Speakers

Mel Farrer <farrerfolks@...>
 

Hi Jay, 

I bought the X-mini for the KX3 and it works well with the K3 also.

http://x-mini.com/product/x-mini-max-capsule-speakers

Mel, K6KBE


On Sunday, December 22, 2013 7:22 AM, Jay Terleski wrote:
 
I find these small powered speakers are just the ticket for the K3 audio. Plenty of power to fill the room when I am working on other stuff.


Not expensive but sound very nice.  I route my PC audio through them too.

--
Jay Terleski
Array Solutions
214 954 7140




External Speakers

Jay Terleski <jayt@...>
 

I find these small powered speakers are just the ticket for the K3 audio. Plenty of power to fill the room when I am working on other stuff.


Not expensive but sound very nice.  I route my PC audio through them too.

--
Jay Terleski
Array Solutions
214 954 7140


Re: [Elecraft_K3] GPS 10 MHz reference

bruce.beford@...
 

My Trimble Thunderbolt GPSDO feed the ext ref on my K3, and my HPSDR systems, among other do-dads. I have a small LCD display that is controlled by a PIC chip, fed by the RS232 output of the Thunderbolt. It keeps me posted on the status of the Trimble, and also happens to display the time....


There was a guy out of China selling them for a while, but I don't see them right now. It was originally published it as a DIY project on the web. A little Google search turned up this:

http://www.ko4bb.com/Timing/GPSMonitor/

I see he also now sells an advanced kit, as well.



Of course, this doesn't automatically update the clock in the K3, but- with this staring me in the face all the time, I don't rely on the clock in the K3. I use the K3 to display other things...


73,

Bruce N1RX


KAT new beta firmware v. 1.42

Dale J. <dj2001x@...>
 

I just installed the latest BETA firmware version 1.42 for the KAT500. I did a tune on one of my MARS frequencies, quite a ways away and below from the ham band which meant it was a shortened antenna for that frequency and it found a match with the astounding bypass SWR of 15.04, it tuned it to 1:1, excellent!!

This is a top notch auto tuner. None finer.

Great job Elecraft!!

Dale, k9vuj


Re: [Elecraft_K3] GPS 10 MHz reference

Mel Farrer <farrerfolks@...>
 

I think I will look into putting a 10 MHz reference clock chip to 32+ KHz and drive the PCB and take the cheap clock chip out....  A thought.

Mel



On Saturday, December 21, 2013 2:39 PM, "mikerodgerske5gbc@..." wrote:
 
Just think, if the clock were extremely accurate, you'd forget how to set it so you see they are actually doing you a favor. HiHi!

It's probably close enough for guvment work. Harty har har!

Merry Christmas
Mike R

Bluegrass white snow
      - Patty Loveless

On Dec 21, 2013, at 11:42 AM, <farrerfolks@...> wrote:

 
Hi Carl,

The clock in the K3 is notoriously inaccurate.  My Trimble GPS is routed throughout the shop equipment.  Would like to run a cable to the ham op position to my K3.



Mel, K6KBE



Re: [Elecraft_K3] GPS 10 MHz reference

mikerodgerske5gbc
 

Just think, if the clock were extremely accurate, you'd forget how to set it so you see they are actually doing you a favor. HiHi!

It's probably close enough for guvment work. Harty har har!

Merry Christmas
Mike R

Bluegrass white snow
      - Patty Loveless

On Dec 21, 2013, at 11:42 AM, <farrerfolks@...> wrote:

 

Hi Carl,

The clock in the K3 is notoriously inaccurate.  My Trimble GPS is routed throughout the shop equipment.  Would like to run a cable to the ham op position to my K3.



Mel, K6KBE


Re: [Elecraft_K3] GPS 10 MHz reference

Mel Farrer <farrerfolks@...>
 

It does.  The 10 MHz goes to the HP8920, 5246 and DDS synthesizer.  I have to put in a small distribution amp to feed the house and op station. 

Mel, K6KBE



On Saturday, December 21, 2013 12:22 PM, Carl Moreschi wrote:
 
Your Trimble just needs to have a 10 mhz reference output.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 12/21/2013 12:42 PM, farrerfolks@... wrote:
> Hi Carl,
>
> The clock in the K3 is notoriously inaccurate. My Trimble GPS is routed
> throughout the shop equipment. Would like to run a cable to the ham op
> position to my K3.
>
>
>
> Mel, K6KBE
>
>



Re: [Elecraft_K3] GPS 10 MHz reference

Carl Moreschi
 

Your Trimble just needs to have a 10 mhz reference output.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 12/21/2013 12:42 PM, farrerfolks@... wrote:
Hi Carl,

The clock in the K3 is notoriously inaccurate. My Trimble GPS is routed
throughout the shop equipment. Would like to run a cable to the ham op
position to my K3.



Mel, K6KBE


Re: K3 nd data modes

ANDY NEHAN
 

Thanks guys for the comments - most useful and your time typing them is MUCH appreciated.

Andy

--- In Elecraft_K3@..., "andy.nehan@..." <andy.nehan@...> wrote:

I use data modes (PSK and RTTY) almost exclusively. I use an Signalink USB external sound card. My K3 has 2.8KHz, 500Hz and 250 Hz filters – all 8 pole. My AGC settings are as delivered excepting SLP which I set to 5 and THR which I set to 10.

I find that when I try to decode low level signals (that is very close to the noise floor) in the presence of strong signals within the 2.8KHz passband I often have problems resolving them, these problems are fixed when I use one of my narrower filters as the signal becomes much clearer on my waterfall(it stands out from the background noise) and hence the Signalink has an easier job of decoding. In an ideal world I would not have these problems.

My question is threefold;
1. is this what I should expect?
2. would different settings for my AGC make a useful difference?
3. would a "better" soundcard (assuming one exists!) fix this. I can imagine a soundcard with a very low noise floor and a wide dynamic range might well be ideal, and if so what external soundcards are recommended?

Andy G4HUE
K3 serial 6990
P3 serial 2493


Re: [Elecraft_K3] OT Yamaha CM500

N2TK, Tony
 

To make the headset more comfortable in a contest take a piece of paper toweling and cover the cushions. Sure helps in hot places.

73 and Merry Christmas

N2TK, Tony

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...] On Behalf Of Charlie T, K3ICH
Sent: Friday, December 20, 2013 6:45 PM
To: Elecraft_K3@...
Subject: Re: [Elecraft_K3] OT Yamaha CM500

 

 

I like the idea of using a cloth cushion since even the high end cans seem to use that same super thin vinyl that peels off and looks ratty.  Comfortable, but ratty. Thanks for the info.

 

73, Chas

----- Original Message -----

From: Dale J.

Sent: Friday, December 20, 2013 6:22 PM

Subject: Re: [Elecraft_K3] OT Yamaha CM500

 

 

Hello Mike,

I don't need any, but am interested in obtaining a spare set if I could find the right ones. I think, believe, the cushions are glued on. Don't try taking them off unless they are shot, you might not have a chance to replace them. I also have a second set of CM500 unused just in case. They are quite inexpensive so why not and good bang for the buck.

73 and Merry Christmas
Dale, k9vuj


Re: [Elecraft_K3] GPS 10 MHz reference

farrerfolks@...
 

Hi Carl,

The clock in the K3 is notoriously inaccurate.  My Trimble GPS is routed throughout the shop equipment.  Would like to run a cable to the ham op position to my K3.



Mel, K6KBE


Re: [Elecraft_K3] Re: How long can the K3 to P3 cable be?

Bob
 


Sleep XMAS day and start 12:01 AM 26 December.   It will be worth the wrath incurred....

Enjoy it.

I have  8 ft of coax and a 10 ft serial cables P3 to K3 with no problems. 

73,
Bob
K2TK


On 12/16/2013 7:52 AM, Larry Wassmann wrote:
 

Thanks for the information gang. I got K3 for Christmas, but Santa will not let me start building it until after Christmas day. I can hardly stand it I want to start on it right now, but my 108 pound Santa would beat me. Any way if you go to my page as noted below you will see that most of my equipment is in a rack. I want to keep it that way and plan on selling the 746Pro and using the money do get a P3. I would like to have the P3 right in front of me square with my operating position. But to get from the IF out on the K3 the cable would have to be about 10 feet. I then plan on going out the P3 to a computer monitor. I guess I can just try it and if it does not work put it in the rack also.

73 OZ

From:
 Larry Martus Wassmann
 Non omnis moriar
 (Not all of me will die) - - - The good I do will live forever.

www.w3oz.com








Re: [Elecraft_K3] Speaker

Charlie T, k3ICH
 

Well yeah.  Just a vain (vein? vane?   Don't you just love English?)   attempt at humor on my part.
 
73 es Merry Christmas, Charlie k3ICH
 
 

----- Original Message -----
Sent: Friday, December 20, 2013 7:02 PM
Subject: Re: [Elecraft_K3] Speaker

 

I assume it was a typo and he meant “K3” not “K4”.

From: "Charlie T, K3ICH" <pincon@...>
Reply-To: <Elecraft_K3@...>
Date: Friday, December 20, 2013 at 4:45 PM
To: <Elecraft_K3@...>
Subject: Re: [Elecraft_K3] Speaker

 

JEEEZE, way to start another rumor.....
 
Chas
----- Original Message -----
From: Dale J.
Sent: Friday, December 20, 2013 5:34 PM
Subject: Re: [Elecraft_K3] Speaker

 

What's a K4?

Dale k9vuj

On 20, Dec 2013, at 15:20, bs36uk@... wrote:

>
>
> Hi which. External speaker best matches a k4
>
>
> Thx
>
>
>


Re: [Elecraft_K3] GPS 10 MHz reference

Carl Moreschi
 

What clock are you talking about? Do you have a GPS receiver?

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 12/20/2013 6:11 PM, Mel Farrer wrote:
Thanks Carl,

This is a new accessory. I called and ordered it. I did ask the BAD
question as to whether this would update the @#%!% clock. No answer to
that. Fingers crossed, hi.

Mel, K6KBE



On Friday, December 20, 2013 2:18 PM, Carl Moreschi
<n4py3@...> wrote:
There's a BNC connector on the back of the GPS receiver. You just
connect it to the 10 mhz ref osc input on the K3. You do need the
K3EXREF option board for this.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 12/20/2013 4:47 PM, farrerfolks@... wrote:
> Carl,
>
> How do you connect it to the K3? Thanks.
>
> Mel, K6KBE
>
>


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