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

[Don Wilhelm]

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