For another take on that, read Martin's reason for making a box to
enhance audio for intelligibility.

http://www.mfjenterprises.com/Product.php?productid=MFJ-616

The transmit side has the same relevance.


Dave

KU4B


On Fri, 2010-01-22 at 09:54 -0500, Tim Ellison wrote:
> They are one in the same. It is an AF equalizer that integrates into the AF 
> audio chain like any other equalizer.
> 
> 
> -Tim
> 
> -----Original Message-----
> From: flexradio-boun...@flex-radio.biz 
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of John Ragle
> Sent: Friday, January 22, 2010 9:29 AM
> To: FlexRadio reflector
> Subject: [Flexradio] naive question...
> 
>     I would like a short explanation of just exactly what function the 
> Receive and Transmit Equalizers in pSDR perform. The Users' Manual 
> simply states that they are "there" and how to set them, with no 
> explanation of what they do.
> 
>     In common lingo, an equalizer tailors the shape of the passband of 
> an audio channel, much the same as the "treble" and "bass" controls do 
> on an ordinary radio. I am used to the "equalizer boards" found in music 
> recording applications, and my naive assumption was that these controls 
> in pSDR control the same sort of functions on the receive and transmit 
> audio. Is this correct?
> 
>     I have complaints that my audio is "bassy." [F3K, USB, 6 meters] The 
> microphone is a Heil HM-5 and the mike gain is set so that voice peaks 
> show around 0 dB on the meter. If my interpretation is correct, this 
> could be taken care of with the "transmit equalizer," cutting the bass 
> and boosting the mid-range and treble ends. Again, I need some 
> reassurance that my understanding of the word "equalizer" in pSDR is the 
> same as the common usage. Some guidance about amount of boost and 
> attenuation would be useful.
> 
>     Thanks...
> 
> John Ragle -- W1ZI
> 
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