Elecraft

K3: my audio information

Classic

List

Threaded

5 messages Options

Bill-4

K3: my audio information

I received several email requests for my audio settings and speakers.
This is what I am using:

The following are the settings I am using on 40, 75, 160 for armchair
copy (meaning very reduced hiss and no ANF warbling). My RX audio goes
through amplified Behringer MS-40 amplified studio speakers with
bass/treble adjustments.

The speaker adjustments: bass at 3 o'clock and the treble at 11 o'clock

K3 settings (Config Menu):
     AGC DLY - NORM
     AGC HLD - 0
     AGC PLS - NORM
     AGC SLP - 4 to 6 (low setting reduces artifacts from the Automatic
Notch Filter)
     AGC THR - 12
     AGC F -       120
     AGC S -       20
     Shift -          1.25
     Width -        2.7
     RF Gain -    90 (sometimes less)
     ATT -           ON
     RX EQ         1        -2
                          2        0
                          3        +9
                          4        +12
                        5        +11
                        6        +14
                          7        +7
                        8        -16

Be sure to read the "Noisy K3" section on http://www.w3fpr.com/-
excellent information!

The disclaimer: Your mileage for the above settings may vary -
depending upon speaker selection, personal preferences, and your hearing
acuity.

Note: I made all of my settings by hand, using the K3 menus. I did NOT
use K3 EZ as that program will sometimes upset the AGC settings.

Bill W2BLC

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Joe Subich, W4TV-4

Re: K3: my audio information

On 2018-06-05 5:21 AM, Bill wrote:

> RX EQ 1 -2
> 2 0
> 3 +9
> 4 +12
> 5 +11
> 6 +14
> 7 +7
> 8 -16

Elecraft *strongly discourage* significant boost (+) settings in
RX EQ as doing so can cause overdrive and distortion in the audio
amplifier.

One would be better served to reduce each band by 10 to 13 dB.
The results would be very similar without the audio distortion
issues.

> Shift - 1.25
> Width - 2.7

This combination actually results in a passband of 0 Hz (-100Hz)
to to 2600 Hz (Shift + Width/2). Better results would be obtained
with FL=100, FH=2700 (or FC=1.40, BW=2600).

73,

... Joe, W4TV

On 2018-06-05 5:21 AM, Bill wrote:

> I received several email requests for my audio settings and speakers.
> This is what I am using:
>
> The following are the settings I am using on 40, 75, 160 for armchair
> copy (meaning very reduced hiss and no ANF warbling). My RX audio goes
> through amplified Behringer MS-40 amplified studio speakers with
> bass/treble adjustments.
>
> The speaker adjustments: bass at 3 o'clock and the treble at 11 o'clock
>
> K3 settings (Config Menu):
>      AGC DLY - NORM
>      AGC HLD - 0
>      AGC PLS - NORM
>      AGC SLP - 4 to 6 (low setting reduces artifacts from the Automatic
> Notch Filter)
>      AGC THR - 12
>      AGC F -       120
>      AGC S -       20
>      Shift -          1.25
>      Width -        2.7
>      RF Gain -    90 (sometimes less)
>      ATT -           ON
>      RX EQ         1        -2
>                           2        0
>                           3        +9
>                           4        +12
>                         5        +11
>                         6        +14
>                           7        +7
>                         8        -16
>
> Be sure to read the "Noisy K3" section on http://www.w3fpr.com/-
> excellent information!
>
> The disclaimer: Your mileage for the above settings may vary -
> depending upon speaker selection, personal preferences, and your hearing
> acuity.
>
> Note: I made all of my settings by hand, using the K3 menus. I did NOT
> use K3 EZ as that program will sometimes upset the AGC settings.
>
> Bill W2BLC
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Bob McGraw - K4TAX

Re: K3: my audio information

Yes, yes and yes. Attenuation is always preferred over boost. This
applies to both receive and transmit.

73

Bob, K4TAX

On 6/5/2018 6:52 AM, Joe Subich, W4TV wrote:

> On 2018-06-05 5:21 AM, Bill wrote:
>
> >      RX EQ         1        -2
> >                    2         0
> >                    3        +9
> >                    4        +12
> >                    5        +11
> >                    6        +14
> >                    7        +7
> >                    8        -16
>
> Elecraft *strongly discourage* significant boost (+) settings in
> RX EQ as doing so can cause overdrive and distortion in the audio
> amplifier.
>
> One would be better served to reduce each band by 10 to 13 dB.
> The results would be very similar without the audio distortion
> issues.
>
> >      Shift -        1.25
> >      Width -        2.7
>
> This combination actually results in a passband of 0 Hz (-100Hz)
> to to 2600 Hz (Shift + Width/2). Better results would be obtained
> with FL=100, FH=2700 (or FC=1.40, BW=2600).
>
> 73,
>
>    ... Joe, W4TV

Bill-4

Re: K3: my audio information

In reply to this post by Joe Subich, W4TV-4

The never ending user menu choices is what makes the K3 so great. Each
user can customize their K3 to suit their individual needs, desires, and
purposes. It is unlikely that the term "one size fits all" will ever
apply to the K3.

I was asked to post my settings - so I did. That was my mistake. Sorry
if I offended the sensibilities of those with differing opinions.

Bill W2BLC K-line

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Joe Subich, W4TV-4

Re: K3: my audio information

> I was asked to post my settings - so I did. That was my mistake. Sorry
> if I offended the sensibilities of those with differing opinions.

Your settings are fine in your application that essentially bypasses
the speaker and headphone amplifiers. However, I wanted to point out
that Elecraft have, on multiple occasions, said not to use extensive
amounts of boost in the RX EQ as doing so will drive both amplifiers
into significant distortion.

73,

... Joe, W4TV

On 2018-06-06 6:37 AM, Bill wrote:

> The never ending user menu choices is what makes the K3 so great. Each
> user can customize their K3 to suit their individual needs, desires, and
> purposes. It is unlikely that the term "one size fits all" will ever
> apply to the K3.
>
> I was asked to post my settings - so I did. That was my mistake. Sorry
> if I offended the sensibilities of those with differing opinions.
>
> Bill W2BLC K-line
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>