[Elecraft] K3 TX EQ

Greg - AB7R ab7r at cablespeed.com
Fri Feb 1 10:39:14 EST 2008


Thanks for checking that Don.  I'm not in front of my radio so could not verify what bands were actually 
used now.  I wasn't aware of that change and will update the FAQ this evening.

BTW...you already can adjust the TX EQ setting during transmit.

-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065
K3#0009

On Fri Feb  1  6:12 , "Don Nesbitt"  sent:

>Hello Paul - the TX EQ steps on my K3 are 50 100 200 400 800 1200 2400 and
>3200.  I've not looked at the FAQ Page but perhaps that was an early version
>and has since been changed and the FAQ ought to be changed to reflect
>current status.  '73 es gud dxing -- Don N4HH K3 #83
>
>-----Original Message-----
>From: elecraft-bounces at mailman.qth.net
>[elecraft-bounces at mailman.qth.net','','','')">elecraft-bounces at mailman.qth.net] On Behalf Of Paul 
Christensen
>Sent: Friday, February 01, 2008 8:58 AM
>To: elecraft at mailman.qth.net
>Subject: [Elecraft] K3 TX EQ
>
>Wyane & Eric:
>
>I noted the following from the Elecraft K3 FAQ page concerning the K3's TX 
>EQ settings:
>
>> "The bands are centered at 200, 400, 600, 800, 1200, 1600, 2400, and 3200 
>> Hz. We can easily change these if something else turns out to make sense. 
>> Also note that TX EQ will be adjustable while in TX mode..."
>
>As long as you're open to suggestion, I would strongly recommend using 
>slightly different centered bands of 50, 100, 200, 400, 800, 1600, 2400, 
>3200 Hz   The lower limit of 200 Hz will not allow the user to optimize low 
>frequency voice tailoring and adequate notching of the 150-200 Hz spectrum 
>without sacrificing low-end content.  As SSB transmit B/W narrows, 
>articulation is significantly improved by narrow subtraction of the 150-200 
>Hz spectrum while maintaining adequate amplitude of approximately 80-100 Hz 
>(assuming the K3 will pass this degree of low-end spectrum owing to the 
>carrier set point placement through the crystal and DSP filters).  The user 
>could then accomplish this effect by adjusting the 100Hz and 200 Hz 
>settings.
>
>Also note that unlike the current K3 band centers, when beginning with 50 
>Hz, each successive band increases in exactly one-octave increments.  Thanks
>
>for your consideration!
>
>Paul, W9AC (K3 on order)
>
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