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[ELECRAFT] K2 : Analog S-meter considerations.

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Behiels JeanPierre

[ELECRAFT] K2 : Analog S-meter considerations.

Hi K2-members;

I do have successfully build a K2/100,but now I like to do some experiments with a analog S-meter device temporary in place of the standard K2 LED device.

Could someone give me some suggestions where I best,could pickup this 2 wire S-meter signal for my analog indication device.

Personally I really prefer a analog reading and indication in place of a LED device !

I like to do some comparing around the both devices .

I look forward to your suggestions and maby some experiences around ?

Kindly regards Jean ON4AEF.

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Don Wilhelm-4

Re: [ELECRAFT] K2 : Analog S-meter considerations.

Jean,

The signal you want is available from Control Board U2 pin 1 - that is
an analog signal.
You should follow it with a unity Gain Op Amp stage to minimize any
loading effects of the analog meter, and you may even want to do some
scaling after the op amp to properly drive whatever meter you will be using.

In other words, this meter should be in addition to the LED bargraph
rather than as a replacement. The LED Bargraph also shows relative
transmit power or ALC level in transmit mode.

If you use a computer with the K2, there used to be an analog type
S-meter display application available, but I forget where it can be
found. Perhaps someone else will know where to find it.

73,
Don W3FPR

On 2/8/2014 9:23 AM, Behiels JeanPierre wrote:

>
> Hi K2-members;
>
>
>
>
>
> I do have successfully build a K2/100,but now I like to do some experiments with a analog S-meter device temporary in place of the standard K2 LED device.
>
> Could someone give me some suggestions where I best,could pickup this 2 wire S-meter signal for my analog indication device.
>
> Personally I really prefer a analog reading and indication in place of a LED device !
>
> I like to do some comparing around the both devices .
>
>
>
> I look forward to your suggestions and maby some experiences around ?
>
>

______________________________________________________________
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Matt Zilmer-2

Re: [ELECRAFT] K2 : Analog S-meter considerations.

For the K2/K3 analog (computer) meter program, try a search for W4SMT.
That's all that shows in the Help-About box.

73,
matt W6NIA

On Sat, 08 Feb 2014 09:41:37 -0500, you wrote:

>Jean,
>
>The signal you want is available from Control Board U2 pin 1 - that is
>an analog signal.
>You should follow it with a unity Gain Op Amp stage to minimize any
>loading effects of the analog meter, and you may even want to do some
>scaling after the op amp to properly drive whatever meter you will be using.
>
>In other words, this meter should be in addition to the LED bargraph
>rather than as a replacement. The LED Bargraph also shows relative
>transmit power or ALC level in transmit mode.
>
>If you use a computer with the K2, there used to be an analog type
>S-meter display application available, but I forget where it can be
>found. Perhaps someone else will know where to find it.
>
>73,
>Don W3FPR
>
>On 2/8/2014 9:23 AM, Behiels JeanPierre wrote:
>>
>> Hi K2-members;
>>
>>
>>
>>
>>
>> I do have successfully build a K2/100,but now I like to do some experiments with a analog S-meter device temporary in place of the standard K2 LED device.
>>
>> Could someone give me some suggestions where I best,could pickup this 2 wire S-meter signal for my analog indication device.
>>
>> Personally I really prefer a analog reading and indication in place of a LED device !
>>
>> I like to do some comparing around the both devices .
>>
>>
>>
>> I look forward to your suggestions and maby some experiences around ?
>>
>>
>
>______________________________________________________________
>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

Thomas Taylor

Re: [ELECRAFT] K2 : Analog S-meter considerations.

In reply to this post by Behiels JeanPierre

On Sat, 8 Feb 2014 15:23:01 +0100
"Behiels JeanPierre" <[hidden email]> wrote:

>
>
> Hi K2-members;
>
>
>
>
>
> I do have successfully build a K2/100,but now I like to do some experiments
> with a analog S-meter device temporary in place of the standard K2 LED device.
>
> Could someone give me some suggestions where I best,could pickup this 2 wire
> S-meter signal for my analog indication device.
>
> Personally I really prefer a analog reading and indication in place of a LED
> device !
>
> I like to do some comparing around the both devices .
>
>
>
> I look forward to your suggestions and maby some experiences around ?
>
>
>
> Kindly regards Jean ON4AEF.
>
>
> ______________________________________________________________
> 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

Here is the url for w4smt's analog s-meter for the k2/k3:
http://elecraft.365791.n2.nabble.com/So-you-want-an-analog-s-meter-for-the-K3-td1444370.html

73 Tom kg7cfc

--
Never be ashamed to ask for information. The ignorant man will always be
ignorant if he fears that by asking he will display ignorance
- Booker T Washington

^^ --... ...-- / -.- --. --... -.-. ..-. -.-.

^^^^
Tom Taylor - retired penguin - KG7CFC
AMD Phenom II x4 955 -- 4GB RAM -- 2x1.5TB sata2
openSUSE 13.1_RC2-x86_64
KDE 4.12.1, FF 25.0, claws-mail 3.9.2
registered linux user 263467
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David Fleming-2

Re: [ELECRAFT] K2 : Analog S-meter considerations.

In reply to this post by Matt Zilmer-2

You can find the K3Meter app here:

http://w4smt.com/sight.net/K3Meter/

I'm not sure it will work with a K2. I don't recall testing it. This is circa 2008.

David, W4SMT

________________________________
From: Matt Zilmer <[hidden email]>
To: [hidden email]
Cc: [hidden email]; [hidden email]
Sent: Saturday, February 8, 2014 9:49 AM
Subject: Re: [Elecraft] [ELECRAFT] K2 : Analog S-meter considerations.

For the K2/K3 analog (computer) meter program, try a search for W4SMT.
That's all that shows in the Help-About box.

73,
matt W6NIA

On Sat, 08 Feb 2014 09:41:37 -0500, you wrote:

Matt Zilmer, W6NIA
www.elecraft.com
831-763-4211 x129
Skype: matt.zilmer

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______________________________________________________________
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