Date   

Re: Instruction Manual

John Canfield <bucket@...>
 

I highly recommend Fred Cady's K3 book,it will be the best money you ever spent to learn about a K3. Unfortunately Fred is a SK.

John, WB5THT


Re: Alternative transverter IF

Colin Smithers
 

Thanks Carl, very interesting, I was unaware of your software.

One question: Does the K3 remember that non-standard IF when used stand-alone at a later date - e,g, when out /P?

73, Colin

G4CWH

-----Original Message-----
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Carl Moreschi via groups.io
Sent: 25 May 2020 11:42
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] Alternative transverter IF

One way to do this is by running my N4PY Pegasus Plus software to
control your K3. My software supports up to 5 transverter setups. The
IF frequency can be set to anything. This allows the correct frequency
to be displayed in the software.

Carl Moreschi N4PY
127 River Moss Way
Hertford, NC 27944
www.n4py.com

On 5/25/2020 2:52 AM, Colin Smithers wrote:
Thanks Alan. That was all I could find too, hence this post.

73, Colin G4CWH


On 25 May 2020, at 00:14, Alan Baker via groups.io
<g4gnx=g4gnx.com@groups.io> wrote:


I checked the K3 and Cady books and there doesn't appear to be any way
of doing what you want. You can set the band, but not a particular
offset in the band. Unfortunately the offset provided is only
correctional and won't shift far enough for your purpose.

73,

Alan. G4GNX


------ Original Message ------
From: "Colin Smithers" <colin@crsmithers.com
<mailto:colin@crsmithers.com>>
To: Elecraft-K3@groups.io <mailto:Elecraft-K3@groups.io>
Sent: 23/05/2020 23:15:47
Subject: [Elecraft-K3] Alternative transverter IF

Hi all,

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other
frequency that is not 28,0, 50,0 etc? The incremental oscillator
shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0
results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done
for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH


Re: Alternative transverter IF

Carl Moreschi
 

One way to do this is by running my N4PY Pegasus Plus software to control your K3. My software supports up to 5 transverter setups. The IF frequency can be set to anything. This allows the correct frequency to be displayed in the software.

Carl Moreschi N4PY
127 River Moss Way
Hertford, NC 27944
www.n4py.com

On 5/25/2020 2:52 AM, Colin Smithers wrote:
Thanks Alan. That was all I could find too, hence this post.

73, Colin G4CWH


On 25 May 2020, at 00:14, Alan Baker via groups.io
<g4gnx=g4gnx.com@groups.io> wrote:


I checked the K3 and Cady books and there doesn't appear to be any way
of doing what you want. You can set the band, but not a particular
offset in the band. Unfortunately the offset provided is only
correctional and won't shift far enough for your purpose.

73,

Alan. G4GNX


------ Original Message ------
From: "Colin Smithers" <colin@crsmithers.com
<mailto:colin@crsmithers.com>>
To: Elecraft-K3@groups.io <mailto:Elecraft-K3@groups.io>
Sent: 23/05/2020 23:15:47
Subject: [Elecraft-K3] Alternative transverter IF

Hi all,

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other
frequency that is not 28,0, 50,0 etc? The incremental oscillator
shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0
results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done
for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH


Re: Alternative transverter IF

Colin Smithers
 

Thanks Alan. That was all I could find too, hence this post.

73, Colin G4CWH


On 25 May 2020, at 00:14, Alan Baker via groups.io <g4gnx@...> wrote:


I checked the K3 and Cady books and there doesn't appear to be any way of doing what you want. You can set the band, but not a particular offset in the band. Unfortunately the offset provided is only correctional and won't shift far enough for your purpose.

73,

Alan. G4GNX


------ Original Message ------
From: "Colin Smithers" <colin@...>
Sent: 23/05/2020 23:15:47
Subject: [Elecraft-K3] Alternative transverter IF

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH


40 meter net Sunday 1800Z on 7280 KHz

Steve
 

Thanks to all for checking in.
WM6P     Steve  GA     K3s   Net Control
K4FBI      Mike    VA     K3s
KS7D       Mike    FL     K3
NC0JW    Jim      CO    KX3
N0MPM   Mike     IA      K3s
K8NU/8    Carl      MI     FT-891
WB9JNZ   Eric      IL      K3
W4DML    Doug    TN    K3
K8OJI       Randy   WV  FTdx-1200




Re: Alternative transverter IF

Alan Baker
 

I checked the K3 and Cady books and there doesn't appear to be any way of doing what you want. You can set the band, but not a particular offset in the band. Unfortunately the offset provided is only correctional and won't shift far enough for your purpose.

73,

Alan. G4GNX


------ Original Message ------
From: "Colin Smithers" <colin@...>
Sent: 23/05/2020 23:15:47
Subject: [Elecraft-K3] Alternative transverter IF

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH


Re: Alternative transverter IF

Colin Smithers
 

That is the question! But how? I can only set 28.0, or 50.0. Etc

Its possible I’m missing something obvious. Please have a go and tell me what you find 😊

73, Colin


On 24 May 2020, at 13:50, David Ferrington, M0XDF via groups.io <M0XDF@...> wrote:

 I could be wrong, but can’t you pick your freq. on the K3?

-73 de M0XDF

On 24 May 2020, at 03:56, Ray Maxfield <wa6vab@...> wrote:



Colin…..

You need to change the Transverter Oscillator Frequency.

Most likely a Crystal, or if a Newer DDS Oscillator, the Frequency it is running at.

Try to find the Make and model on the internet to get the Data / Information

About your Transverter……..    Ray    WA6VAB    

 

From: Colin Smithers
Sent: Saturday, May 23, 2020 3:36 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Alternative transverter IF

 

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH

 


Re: Alternative transverter IF

Colin Smithers
 

Hi Ray,

I built the transverter. If you run the LO at 42 MHz then 28.0 is the IF, but there is a bad spurious, its in the math. Which is why I then modified it to 42.5 all those years ago.

I do think the answer lies in altering the K3 internal math, or putting up with having to subtract 500 kHz.

73, Colin


On 24 May 2020, at 03:56, Ray Maxfield via groups.io <wa6vab@...> wrote:



Colin…..

You need to change the Transverter Oscillator Frequency.

Most likely a Crystal, or if a Newer DDS Oscillator, the Frequency it is running at.

Try to find the Make and model on the internet to get the Data / Information

About your Transverter……..    Ray    WA6VAB    

 

From: Colin Smithers
Sent: Saturday, May 23, 2020 3:36 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Alternative transverter IF

 

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH

 


Re: K3EXREF questions for use after setup

HB
 

Max…

Thanks for your reply!  I thought so – just wanted to be sure!

 

Hank

K4HYJ

 

 

From: Max NG7M
Sent: Sunday, May 24, 2020 10:14 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3EXREF questions for use after setup

 

Hi Hank, setting TECH MD to off won't impact any of the options/settings you see when TECH MD is on.  So you are good to go.  Your K3EXREF will still lock to your external 10mhz GPSDO source.  TECH MD off just hides the more advanced settings and nothing more.  Max NG7M

 


Re: K3EXREF questions for use after setup

HB
 

 

The QRP-LABs progrock delivers square wave, 3.3V P-P.

 

Qrp-labs.com

 

 

 

From: John Canfield
Sent: Sunday, May 24, 2020 9:15 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3EXREF questions for use after setup

 

I have the K3EXREF kit but I haven't installed it yet, maybe this would provide some guidance? What level is your 10Mhz signal?

 


Re: K3EXREF questions for use after setup

Max NG7M
 

Hi Hank, setting TECH MD to off won't impact any of the options/settings you see when TECH MD is on.  So you are good to go.  Your K3EXREF will still lock to your external 10mhz GPSDO source.  TECH MD off just hides the more advanced settings and nothing more.  Max NG7M


Re: K3EXREF questions for use after setup

John Canfield <bucket@...>
 

I have the K3EXREF kit but I haven't installed it yet, maybe this would provide some guidance? What level is your 10Mhz signal?


Re: Alternative transverter IF

David Ferrington, M0XDF
 

I could be wrong, but can’t you pick your freq. on the K3?

-73 de M0XDF

On 24 May 2020, at 03:56, Ray Maxfield <wa6vab@...> wrote:



Colin…..

You need to change the Transverter Oscillator Frequency.

Most likely a Crystal, or if a Newer DDS Oscillator, the Frequency it is running at.

Try to find the Make and model on the internet to get the Data / Information

About your Transverter……..    Ray    WA6VAB    

 

From: Colin Smithers
Sent: Saturday, May 23, 2020 3:36 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Alternative transverter IF

 

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH

 


Re: Alternative transverter IF

Ray Maxfield
 

Colin…..

You need to change the Transverter Oscillator Frequency.

Most likely a Crystal, or if a Newer DDS Oscillator, the Frequency it is running at.

Try to find the Make and model on the internet to get the Data / Information

About your Transverter……..    Ray    WA6VAB    

 

From: Colin Smithers
Sent: Saturday, May 23, 2020 3:36 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Alternative transverter IF

 

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH

 


K3EXREF questions for use after setup

HB
 

Hey Folks...
I just finished building the QRP-Labs ProgRock/Synth kit and their QLG1 GPS receiver to discipline it.  It works quite well.

I have it connected to the K3EXREF input on my K3s.  I followed the instructions and according to the instructions, my K3s is receiving a signal (by the flashing * while in the REF CAL menu).  In order to activate the input, I had to set the TECH MD to "on".  If I turn the TECH MD back to "off", the REF CAL menu goes away.  Is the K3EXREF still using the 10Mhz input from my kit or do I have to leave TECH MD  "on"?

If it works with the TECH MD set to "off", how do I know it's working?  Or do I just need to occassionally check by turning TECH MD "on" and go to the REF CAL menu?

The instructions aren't clear.

Thanks,
Hank
K4HYJ
K3s, P3, KX3


Alternative transverter IF

Colin Smithers
 

Hi all, 

I'm New here.

Does anyone know how to set a transverter IF to 28.5MHz, or any other frequency that is not 28,0, 50,0 etc? The incremental oscillator shift only goes so far i think.

Reason is I built a 70 MHz transverter from 28.5 as using 28.0 results in a a difficult spurious product.

If not I can always continue to subtract .5 in my head as i have done for the last 35+ years :-)

(Also sent to the elecraft group)

Thanks and 73, Colin G4CWH


Re: Instruction Manual

Mel Marcus
 

I downloaded Cady's book and it is great. to go along with this thread, the first chapter is on filters.

Mel
NE9A

-------- Original Message --------
Subject: Re: [Elecraft-K3] Instruction Manual
From: "Thomas Doligalski via groups.io" <w4kx@...>
Date: Fri, May 22, 2020 8:20 am
To: Elecraft-K3@groups.io

Not a video, but there is always Fred Cady’s book!

 

On May 22, 2020, at 9:18 AM, mikerodgerske5gbc via groups.io <mikerodgerske5gbc@...> wrote:


I think it was is " demystifying the k3"

73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 7:49 AM, mikerodgerske5gbc via groups.io <mikerodgerske5gbc@...> wrote:

Would this be for someone new to the radio?  

Maybe your interested modes of operation would narrow things down a bit or maybe not. 

There is a old but very good article on filters called I think "mystifying the k3"

73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 1:14 AM, abners@... wrote:

Hi,
Does anyone know where I can get instructional videos for the software and also tips in general?
Any videos?
Thanks


New home for K3, new photos added.

Dave Cole
 

To the new home for my K3 project...

https://www.nk7z.net/rf-patch-panel/

See last 4 at the bottom.
--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources


Re: Instruction Manual

Tom Doligalski W4KX
 

Not a video, but there is always Fred Cady’s book!

 

On May 22, 2020, at 9:18 AM, mikerodgerske5gbc via groups.io <mikerodgerske5gbc@...> wrote:


I think it was is " demystifying the k3"

73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 7:49 AM, mikerodgerske5gbc via groups.io <mikerodgerske5gbc@...> wrote:

Would this be for someone new to the radio?  

Maybe your interested modes of operation would narrow things down a bit or maybe not. 

There is a old but very good article on filters called I think "mystifying the k3"

73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 1:14 AM, abners@... wrote:

Hi,
Does anyone know where I can get instructional videos for the software and also tips in general?
Any videos?

Thanks


Re: Instruction Manual

ve3ki
 

No, I suspect it is a spammer. This same (or very similar) email address has been used to spam two other groups.io groups that I monitor. Note the lack of a signature.

73,
Rich VE3KI


On Fri, May 22, 2020 at 09:15 AM, mikerodgerske5gbc wrote:
I think it was is " demystifying the k3"
 
73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 7:49 AM, mikerodgerske5gbc via groups.io <mikerodgerske5gbc@...> wrote:

Would this be for someone new to the radio?  
 
Maybe your interested modes of operation would narrow things down a bit or maybe not. 
 
There is a old but very good article on filters called I think "mystifying the k3"
 
73
Mike R

7!
Absolutely Awesome 

On May 22, 2020, at 1:14 AM, abners@... wrote:

Hi,
Does anyone know where I can get instructional videos for the software and also tips in general?
Any videos?

Thanks

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