Re: [Elecraft] K2 filter optimisation

[Bill Coleman]

> On Feb 12, 2021, at 3:59 AM, Ian Maude  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-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] K2 filter optimisation

[Ian Maude]

 Thankyou to everyone for ideas.  In the end, I found a version of
Spectrogram16 which worked first time under Windows 10 running with
Parallels on the Mac.  I had forgotten how much of a joy it was to use when
setting up the filters.

73 Ian

On 22 Feb 2021 at 01:52:44, Jon  wrote:

> Hi all...
>
> Another choice might be something called REW (Room EQ Wizard) which is
> an AMAZING, free program that is Java based, so it should work across
> different platforms.  There is a Mac dedicated version,  but I know
> little about Macs,  whether yours might be compatable or not.
>
> It is a very capable and complex program,  originally designed for
> EQ'ing speakers and subwoofers with your room, for good, balanced bass.
>
> It of course, has a very capable audio measurement and spectral display
> capability,  with a whole lot more.  The designer has been adding things
> as he's been working on it for a long time now, it has a pretty amazing
> list of features, especially for a free SW. Beautiful and flexible
> graphing, I might add.
>
> Check it out,  help files are pretty good.  Might be a little daunting,
> but you won't be needing to deal with some other things that would be
> part of a usual setup.   You don't have to do any mic setup and cal, of
> course,  since you're not measuring room responses,  and it's pretty
> basic to just get your rig speaker output into a computer line input,
> to measure response like with Spectrogram.  Of course, you could use the
> built in signal generator to put pink noise into your mic input to
> measure your TX response, as a more advanced usage, later perhaps
>
> https://www.roomeqwizard.com/  is the site.  There is a pretty active
> forum on a site called AV Nirvana, used to be you had to make an account
> there to download REW,  but he now has the stand alone site.  Worth the
> signup to get on the forum if you need to post a question,  they've
> never bothered or mailbombed me.
>
> Jon, KA6MOK  K2 1251
>
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Re: [Elecraft] K2 filter optimisation

[Ian Maude]

 Many thanks :)

On 14 Feb 2021 at 21:33:35, SteveL  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  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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Re: [Elecraft] K2 filter optimisation

[SteveL]

DL4YHF’s Audio Spectrum Analyser...

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  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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Re: [Elecraft] K2 filter optimisation

[E Turk]

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 
> .
> 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

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Re: [Elecraft] K2 filter optimisation

[E Turk]

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  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?
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Re: [Elecraft] K2 filter optimisation

[kevinr]

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?

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Re: [Elecraft] K2 filter optimisation

[Dan Presley]

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

Dan Presley 503-701-3871
danpresley@me. com 
n7...@arrl.net


> On Feb 12, 2021, at 11:44, 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?
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Re: [Elecraft] K2 filter optimisation

[Don Wilhelm]

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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