[Elecraft] help with improving transmit eq

[Don Wilhelm]

Steve,

Since this K3 is 'new to you', you can't know how the prior owner has 
set things.
Check the settings in the TX EQ first.  I would suggest that you 
initially set all bands to flat.  For communications quality, normally 
you want to reduce the first 2 bands to the lowest settings and the 3rd 
band by 3 to 6 dB.  The lower frequencies take a lot of power but do not 
improve communications and intelligence.  OTOH if your listeners are of 
the ESSB kind, they like a lot of bass in the response.
I have known one instance where that symptom was cured by calibrating 
the Reference Oscillator.  Follow the instructions for Method 2 (Zero 
Beating) in the manual.
Do not overlook the fact that you may have a bad microphone.  Take an 
inexpensive computer microphone and plug it into the rear mic jack, set 
the MIC SEL to the rear jack and turn bias on.  Those computer mics 
normally produce good quality audio.

73,
Don W3FPR

On 2/3/2016 1:09 AM, Steve Wilson via Elecraft wrote:
> Hi all,
> I have a newly acquired slightly used K3.  Feedback on my voice audio quality is that it sounds tinny with no low or mid range.  Unfortunately, the K3 manual really doesn't provide much guidance on how to adjust the transmit EQ other than the mechanics of what buttons to push.  If I need to increase the low and mid, does this mean I should increase the values of the first half of the 8 settings and decrease the second half..or something similar?  It's been a while since I've dealt with audio equalizers.  I would appreciate any suggestions.
>