Re: K3 Audio Response - Version 3.33 Firmware

Posted by Brett Howard on Sep 20, 2009; 11:42pm
URL: http://elecraft.85.s1.nabble.com/K3-Audio-Response-Version-3-33-Firmware-tp3673422p3682148.html

Yes but unless the response remains that way when an 8 ohm speaker is
there its not a very useful measurement.

~BTH

On Sun, 2009-09-20 at 07:56 -0700, Ignacy wrote:

> Is this measured with high impedance probes? If I remember correctly, small
> caps limit low-frequency response of K3 especially with low impedance
> phones/speakers.
> Ignacy
>
>
> As a further experiment, I just added 3 dB to Rx bands 1-3 and the response
> is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through the 6K
> filter and Fc = 1.35.  You can lay the ruler flat on the response.
>
> http://216.229.20.37/images/K3-V333-EQ.jpg
>
> Paul, W9AC
>
> ___

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