[Elecraft] Sqelch Settings No Effect and audio listening fatigue and noisy computers.

[James Sarte (K2QI)]

Hi Don,

On pg. 59 of the manual, it states:

"*This menu entry normally sets the main receiver squelch value (**0**-**29*
*). If VFO A is rotated fully clockwise, the parameter changes to **=SUB POT
**. Squelch for both main and sub receivers will then be controlled by the
SUB RF/SQL knob, and both main and sub RF gain will be controlled by the
MAIN RF/SQL knob.*
*
*

*Note: By default, squelch applies only to FM mode. Tapping [1]** **while in
this menu entry alternates between **SQL=ALL **(all-mode squelch) and **
SQL=FM**.*"


If you want to use squelch in all modes, you'll have to tap button [1] while
in the SQ MAIN config section.


73,

James K2QI

On Sun, Nov 21, 2010 at 2:12 PM, <goldtr8 at charter.net> wrote:

> I have enabled the ability to change the sqelch settings to try and
> reduce some of the background static.  However, no matter how I adjust
> it from 0 to 29 it has no effect on the audio.
>
> Is this normal or do I not understand the function in the K3.  In any
> other radio I have owned in the past this would lower the static
> threshold.
>
> To try and improve the audio I have gone to an external equalizer and I
> hope this will help with the hearing fatigue I get with this radio.  I
> am wondering if part of the problem is the Heil pro 2 that I purchased
> with the radio.
>
> I am slowly playing with filter settings, NR, NB ans so on and I can
> definatly pull out signals.  I have been listening all over the bands
> with the contest going on so I can tell the differences.
>
> As a final statement I also had to ditch the tower computer and go to a
> laptop as the computer was putting lots of noise in the system when I
> connected it to the K3 even with a good shielded USB to RS232 converter
> with 6 turns in a 31 mix bead.  I changed to the laptop and this noise
> is not there.
>
> Anyway I am making progress but I would like some ideas on the sqelch.
>
> One final question is there a good users guide that helps to explain all
> the different settings and how making changes affect either RX or TX and
> what are the interactions between these settings.
>
> Thanks in advance for all your help.
>
> KD8NNU
> Don
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-- 
73 de James K2QI
President UNARC/4U1UN