[Elecraft] more Bass in K3 with PR-40

[Ray Sills]

The rule of thumb in the world of professional audio is that you  
should -cut- rather than boost frequencies to achieve the sound you  
want when using "equalizers".  So, if you have a lot of highs... cut  
the highs.  Adjust overall gain upward to compensate if the overall  
level becomes too low.

 From what I understand, "ESSB" is simply wider bandwidth sideband...  
usually by using a wider filter to permit more low audio frequencies  
and more high audio frequencies to pass through.  The result is an on- 
air signal that "sounds nicer"... since with it's wider bandwidth,  
approaches the audio sound of an AM station that has no bandwidth  
filtering or constriction.

You can argue the case that ESSB is not good amateur practice, since  
you are using more bandwidth for your communication, but then, the  
good practice (and FCC rule) of using only the minimum power necessary  
to maintain communication is honored more in the breech, than the  
observance.  But, there are many hams, and many ways of communicating  
and as long as the RF emissions are clean and in line with FCC  
regulations, there's room for all types of signals and bandwidths.   
Certainly, ESSB is no wider than an AM signal can be, and AM is  
clearly permitted in the rules.

73 de Ray
K2ULR


On Jun 19, 2012, at 8:18 AM, ac8jd wrote:

> I have had this K3 up on the air for a few days now.  I would be  
> curious to
> know how I can get more "lows" or "bass" out of the TX on SSB with  
> my PR-40.
> The audio reports I get from other stations are that I have a lot of  
> "highs"
> and they can't open up their filter to get enough bandwidth on my  
> signal to
> make it sound "lower".
>
> I have the TC equalizer set according to Heil's website for the Pr-40
> http://www.heilsound.com/amateur/dspsettings/all_elecraft.php
>
> I just don't know how to achieve getting and lower levels to come  
> out of the
> rig.  I see in the manual to use the ESSB you have the 6khz filter.   
> Would
> that help my situation?
>
> TNX,
> AC8JD