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K2 filter optimisation

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Ian Maude-2

K2 filter optimisation

Hi all,
It’s been a while but good to be back. I have just resurrected my K2 and
had to do a reset due to not having any sidetone. This meant a certain
amount of realignment.
When I originally aligned this (back in 2004) I was able to use Spectrogram
to align the filters well. Is there a modern replacement for this,
preferably for Mac?

73 Ian
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Don Wilhelm

Re: K2 filter optimisation

Ian,

Spectrum Lab runs on Windows and Linux, but Mac is not specifically
mentioned. Google for it and read for yourself.

If you have a Windows machine, you can use Spectrogram. Download from
my website www.w3fpr.com - Scroll to near the bottom of the home page to
find the links.

73,
Don W3FPR

On 2/12/2021 3:59 AM, Ian Maude wrote:
> Hi all,
> It’s been a while but good to be back. I have just resurrected my K2 and
> had to do a reset due to not having any sidetone. This meant a certain
> amount of realignment.
> When I originally aligned this (back in 2004) I was able to use Spectrogram
> to align the filters well. Is there a modern replacement for this,
> preferably for Mac?
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Dan Presley

Re: K2 filter optimisation

Let me know what you find out about Mac options. Thanks

Dan Presley 503-701-3871
danpresley@me. com
[hidden email]

> On Feb 12, 2021, at 11:44, Don Wilhelm <[hidden email]> wrote:
>
> Ian,
>
> Spectrum Lab runs on Windows and Linux, but Mac is not specifically mentioned. Google for it and read for yourself.
>
> If you have a Windows machine, you can use Spectrogram. Download from my website www.w3fpr.com - Scroll to near the bottom of the home page to find the links.
>
> 73,
> Don W3FPR
>
>> On 2/12/2021 3:59 AM, Ian Maude wrote:
>> Hi all,
>> It’s been a while but good to be back. I have just resurrected my K2 and
>> had to do a reset due to not having any sidetone. This meant a certain
>> amount of realignment.
>> When I originally aligned this (back in 2004) I was able to use Spectrogram
>> to align the filters well. Is there a modern replacement for this,
>> preferably for Mac?
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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kevinr@coho.net

Re: K2 filter optimisation

In reply to this post by Don Wilhelm

I was curious so I searched for alternatives. I used the search string
"spectrum audio graphing application for macintosh linux OS" and found a
number of applications you could use to tune your K2. I have not used
any of them. I simply wanted to see what was out there. Options are
available for Linux users as well as those using the recent Mac
operating systems. My last Mac was the IIvx which used a Motorola chip
from the 68000 family. Everything I had written on previous Macs worked
on it; even some from my 100 day box. That was the one with the
designer's signatures embossed on the inside of the case.

GL & 73, Kevin. KD5ONS

-

On 2/12/21 11:43 AM, Don Wilhelm wrote:

> Ian,
>
> Spectrum Lab runs on Windows and Linux, but Mac is not specifically
> mentioned. Google for it and read for yourself.
>
> If you have a Windows machine, you can use Spectrogram. Download from
> my website www.w3fpr.com - Scroll to near the bottom of the home page
> to find the links.
>
> 73,
> Don W3FPR
>
> On 2/12/2021 3:59 AM, Ian Maude wrote:
>> Hi all,
>> It’s been a while but good to be back. I have just resurrected my K2
>> and
>> had to do a reset due to not having any sidetone. This meant a certain
>> amount of realignment.
>> When I originally aligned this (back in 2004) I was able to use
>> Spectrogram
>> to align the filters well. Is there a modern replacement for this,
>> preferably for Mac?
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

E Turk

Re: K2 filter optimisation

Good morning All,

Many years ago I used iSpectrum from Don Agro, Dog Park Software on my old Mac. The program can still be downloaded, but wouldn’t run on my new Mac Mini M1 (old Mac died). Will need to go into Unix according to the error message!

Last login: Sat Feb 13 09:16:38 on console
/Applications/iSpectrum.app/Contents/MacOS/iSpectrum ; exit;

The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.
Mac-mini:~ tedair$ /Applications/iSpectrum.app/Contents/MacOS/iSpectrum ; exit;
Killed: 9
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
Deleting expired sessions...2 completed.

[Process completed]

If any of you understand this - help please!

73, Ted G7BQM

> On 12 Feb 2021, at 22:49, kevinr <[hidden email]> wrote:
>
> I was curious so I searched for alternatives. I used the search string "spectrum audio graphing application for macintosh linux OS" and found a number of applications you could use to tune your K2. I have not used any of them. I simply wanted to see what was out there. Options are available for Linux users as well as those using the recent Mac operating systems. My last Mac was the IIvx which used a Motorola chip from the 68000 family. Everything I had written on previous Macs worked on it; even some from my 100 day box. That was the one with the designer's signatures embossed on the inside of the case.
>
> GL & 73, Kevin. KD5ONS
>
> -
>
> On 2/12/21 11:43 AM, Don Wilhelm wrote:
>> Ian,
>>
>> Spectrum Lab runs on Windows and Linux, but Mac is not specifically mentioned. Google for it and read for yourself.
>>
>> If you have a Windows machine, you can use Spectrogram. Download from my website www.w3fpr.com - Scroll to near the bottom of the home page to find the links.
>>
>> 73,
>> Don W3FPR
>>
>> On 2/12/2021 3:59 AM, Ian Maude wrote:
>>> Hi all,
>>> It’s been a while but good to be back. I have just resurrected my K2 and
>>> had to do a reset due to not having any sidetone. This meant a certain
>>> amount of realignment.
>>> When I originally aligned this (back in 2004) I was able to use Spectrogram
>>> to align the filters well. Is there a modern replacement for this,
>>> preferably for Mac?
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email] <mailto:[hidden email]>
> ______________________________________________________________
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> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm>
> Post: mailto:[hidden email] <mailto:[hidden email]>
>
> This list hosted by: http://www.qsl.net <http://www.qsl.net/>
> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html>
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E Turk

Re: K2 filter optimisation

Just tried to open iSpectrum for the 3rd time and it now works! Self healing software in Big Sur?

73, Ted G7BQM

> Good morning All,
>
> Many years ago I used iSpectrum from Don Agro, Dog Park Software on my old Mac. The program can still be downloaded, but wouldn’t run on my new Mac Mini M1 (old Mac died). Will need to go into Unix according to the error message!
>
> Last login: Sat Feb 13 09:16:38 on console
> /Applications/iSpectrum.app/Contents/MacOS/iSpectrum ; exit;
>
> The default interactive shell is now zsh.
> To update your account to use zsh, please run `chsh -s /bin/zsh`.
> For more details, please visit https://support.apple.com/kb/HT208050 <https://support.apple.com/kb/HT208050>.
> Mac-mini:~ tedair$ /Applications/iSpectrum.app/Contents/MacOS/iSpectrum ; exit;
> Killed: 9
> logout
> Saving session...
> ...copying shared history...
> ...saving history...truncating history files...
> ...completed.
> Deleting expired sessions...2 completed.
>
> [Process completed]
>
> If any of you understand this - help please!
>
>
> 73, Ted G7BQM

SteveL

Re: K2 filter optimisation

In reply to this post by kevinr@coho.net

DL4YHF’s Audio Spectrum Analyser...

https://www.qsl.net/dl4yhf/spectra1.html <https://www.qsl.net/dl4yhf/spectra1.html>

May be a good Mac OS alternative.

Steve
aa8af

> On Feb 12, 2021, at 5:49 PM, kevinr <[hidden email]> wrote:
>
> I was curious so I searched for alternatives. I used the search string "spectrum audio graphing application for macintosh linux OS" and found a number of applications you could use to tune your K2. I have not used any of them. I simply wanted to see what was out there. Options are available for Linux users as well as those using the recent Mac operating systems. My last Mac was the IIvx which used a Motorola chip from the 68000 family. Everything I had written on previous Macs worked on it; even some from my 100 day box. That was the one with the designer's signatures embossed on the inside of the case.
>
>
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Ian Maude-2

Re: K2 filter optimisation

Many thanks :)

On 14 Feb 2021 at 21:33:35, SteveL <[hidden email]> wrote:

> DL4YHF’s Audio Spectrum Analyser...
>
> https://www.qsl.net/dl4yhf/spectra1.html <
> https://www.qsl.net/dl4yhf/spectra1.html>
>
> May be a good Mac OS alternative.
>
> Steve
> aa8af
>
>
> On Feb 12, 2021, at 5:49 PM, kevinr <[hidden email]> wrote:
>
>
> I was curious so I searched for alternatives. I used the search string
> "spectrum audio graphing application for macintosh linux OS" and found a
> number of applications you could use to tune your K2. I have not used any
> of them. I simply wanted to see what was out there. Options are available
> for Linux users as well as those using the recent Mac operating systems.
> My last Mac was the IIvx which used a Motorola chip from the 68000 family.
> Everything I had written on previous Macs worked on it; even some from my
> 100 day box. That was the one with the designer's signatures embossed on
> the inside of the case.
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Bill Coleman-2

Re: K2 filter optimisation

In reply to this post by Ian Maude-2

> On Feb 12, 2021, at 3:59 AM, Ian Maude <[hidden email]> wrote:
>
> When I originally aligned this (back in 2004) I was able to use Spectrogram
> to align the filters well. Is there a modern replacement for this,
> preferably for Mac?

I use CocoaModem, which has a pretty good spectral display, perfectly adequate for adjusting the filters on the K2.

Bill Coleman, AA4LR, PP-ASEL Mail: [hidden email]
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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