Elecraft

ESSB Equalization

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Ron Midwin-3

ESSB Equalization

Recently I was reviewing the ESSB settings and noticed in both the KE7X &
factory manual, it says says there is an * setting for a separate equalizer
just for ESSB.

Supposedly when you set the K3 up for ESSB, and go to the TX ESSB setting
in the config menu, you should see TX*ESSB and I assume this settings for
equalization come up whenever you go back to the ESSB setting.

I can't seem to get this to happen.

now I can tweak the Xmtr equalizer just for ESSB and save it in EZ K3, but
how do I get the TX*ESSB to work?

--
Ron Midwin
S/N 1997
AE6RH
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Matt Zilmer

Re: ESSB Equalization

Hi Ron,

Go the CONFIG:TX ESSB menu. Push the '1' key until VFO A reads, On or
OFF. If it's OFF, push the '1' key again and you should see it read
'On'.

Use VFO A to set the width you want. Then exit the menu.

73,
matt W6NIA

On Sat, 26 Jan 2013 14:32:06 -0800, you wrote:

>Recently I was reviewing the ESSB settings and noticed in both the KE7X &
>factory manual, it says says there is an * setting for a separate equalizer
>just for ESSB.
>
>Supposedly when you set the K3 up for ESSB, and go to the TX ESSB setting
>in the config menu, you should see TX*ESSB and I assume this settings for
>equalization come up whenever you go back to the ESSB setting.
>
>I can't seem to get this to happen.
>
>now I can tweak the Xmtr equalizer just for ESSB and save it in EZ K3, but
>how do I get the TX*ESSB to work?

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Mike Markowski-2

Re: ESSB Equalization

I wrote a tiny program for adjusting the 3 EQ settings:

http://udel.edu/~mm/ham/elecraft/

and click on the Elecraft logo for the K3 EQ program.

This doesn't compare to elaborate programs that do much more, but might
be useful for a simple EQ adjustment. Not tested on all OSes, so no
guarantees. :-)

73,
Mike ab3ap

On 01/26/2013 06:48 PM, Matt Zilmer wrote:

> Hi Ron,
>
> Go the CONFIG:TX ESSB menu. Push the '1' key until VFO A reads, On or
> OFF. If it's OFF, push the '1' key again and you should see it read
> 'On'.
>
> Use VFO A to set the width you want. Then exit the menu.
>
> 73,
> matt W6NIA

Matt Zilmer

Re: ESSB Equalization

It works quite well too! Looks like Wide SSB TX and plain SSB TX are
always left with the same profile.

73,
matt W6NIA

On Sat, 26 Jan 2013 18:54:17 -0500, you wrote:

>I wrote a tiny program for adjusting the 3 EQ settings:
>
> http://udel.edu/~mm/ham/elecraft/
>
>and click on the Elecraft logo for the K3 EQ program.
>
>This doesn't compare to elaborate programs that do much more, but might
>be useful for a simple EQ adjustment. Not tested on all OSes, so no
>guarantees. :-)
>
>73,
>Mike ab3ap
>
>On 01/26/2013 06:48 PM, Matt Zilmer wrote:
>> Hi Ron,
>>
>> Go the CONFIG:TX ESSB menu. Push the '1' key until VFO A reads, On or
>> OFF. If it's OFF, push the '1' key again and you should see it read
>> 'On'.
>>
>> Use VFO A to set the width you want. Then exit the menu.
>>
>> 73,
>> matt W6NIA
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Richard Fjeld

Re: ESSB Equalization

I have watched ESSB signals on the P3 and I have this question; most receivers are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on SSB. That is about all they are going to hear when listening to a wide ESSB signal. Unless someone with ESSB is in qso with a station of the same width, isn't it going to be wasted bandwidth?

Rich, n0ce

----- Original Message -----
From: Matt Zilmer
To: Mike Markowski
Cc: [hidden email]
Sent: Saturday, January 26, 2013 8:08 PM
Subject: Re: [Elecraft] ESSB Equalization

It works quite well too! Looks like Wide SSB TX and plain SSB TX are
always left with the same profile.

73,
matt W6NIA

On Sat, 26 Jan 2013 18:54:17 -0500, you wrote:

>I wrote a tiny program for adjusting the 3 EQ settings:
>
> http://udel.edu/~mm/ham/elecraft/
>
>and click on the Elecraft logo for the K3 EQ program.
>
>This doesn't compare to elaborate programs that do much more, but might
>be useful for a simple EQ adjustment. Not tested on all OSes, so no
>guarantees. :-)
>
>73,
>Mike ab3ap
>
>On 01/26/2013 06:48 PM, Matt Zilmer wrote:
>> Hi Ron,
>>
>> Go the CONFIG:TX ESSB menu. Push the '1' key until VFO A reads, On or
>> OFF. If it's OFF, push the '1' key again and you should see it read
>> 'On'.
>>
>> Use VFO A to set the width you want. Then exit the menu.
>>
>> 73,
>> matt W6NIA
>______________________________________________________________
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Don Wilhelm-4

Re: ESSB Equalization

IMHO, those who want "studio quality" SSB should obtain a commercial
broadcasting license and use that instead of using the ham bands for
"wideband SSB". Not only is it wasted bandwidth, but it is QRM to
adjacent stations. My opinion of AM on the ham bands is similar.
Technology has advanced to the point where minimum bandwidth to achieve
effective communications is all that should be used, and an audio
bandwidth of 300 to 2600 Hz is more than adequate for good communications.

73,
Don W3FPR

On 1/27/2013 11:47 PM, Richard Fjeld wrote:

> I have watched ESSB signals on the P3 and I have this question; most receivers are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on SSB. That is about all they are going to hear when listening to a wide ESSB signal. Unless someone with ESSB is in qso with a station of the same width, isn't it going to be wasted bandwidth?
>
> Rich, n0ce
>
> ----- Original Message -----
> From: Matt Zilmer
> To: Mike Markowski
> Cc: [hidden email]
> Sent: Saturday, January 26, 2013 8:08 PM
> Subject: Re: [Elecraft] ESSB Equalization
>
>
> It works quite well too! Looks like Wide SSB TX and plain SSB TX are
> always left with the same profile.
>
> 73,
> matt W6NIA
>

Scott Manthe-2

Re: ESSB Equalization

Wasted bandwidth, indeed. This is not the place to debate "ESSB." It's a
dead horse that has been beaten from the pasture to the glue factory.

73,
Scott, N9AA

On 1/28/13 12:07 AM, Don Wilhelm wrote:

Alan Bloom

Re: ESSB Equalization

In reply to this post by Don Wilhelm-4

I use ESSB but with the equalizer set to limit the bandwidth to about
2.5 kHz. I do that because I believe you get better audio quality.

Much of the "Donald Duck" quality of SSB is due to the ripple in the
phase response of the crystal filter, which occurs primarily at the
edges of the filter passband. ESSB in the K3 uses the 6 kHz AM filter
so the passband edges are well away from the 2.5 kHz voice band. It
should have much flatter phase response.

I should do some double-blind A/B testing to compare ESSB versus
non-ESSB and see for sure if it really makes a difference.

Alan N1AL

On 1/27/2013 9:07 PM, Don Wilhelm wrote:

> IMHO, those who want "studio quality" SSB should obtain a commercial
> broadcasting license and use that instead of using the ham bands for
> "wideband SSB". Not only is it wasted bandwidth, but it is QRM to
> adjacent stations. My opinion of AM on the ham bands is similar.
> Technology has advanced to the point where minimum bandwidth to achieve
> effective communications is all that should be used, and an audio
> bandwidth of 300 to 2600 Hz is more than adequate for good communications.
>
> 73,
> Don W3FPR
>
> On 1/27/2013 11:47 PM, Richard Fjeld wrote:
>> I have watched ESSB signals on the P3 and I have this question; most
>> receivers are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on
>> SSB. That is about all they are going to hear when listening to a
>> wide ESSB signal. Unless someone with ESSB is in qso with a station
>> of the same width, isn't it going to be wasted bandwidth?
>>
>> Rich, n0ce
>> ----- Original Message -----
>> From: Matt Zilmer
>> To: Mike Markowski
>> Cc: [hidden email]
>> Sent: Saturday, January 26, 2013 8:08 PM
>> Subject: Re: [Elecraft] ESSB Equalization
>>
>>
>> It works quite well too! Looks like Wide SSB TX and plain SSB TX are
>> always left with the same profile.
>>
>> 73,
>> matt W6NIA
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
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>
>

Grant Youngman

Re: ESSB Equalization

In reply to this post by Don Wilhelm-4

I wish it were possible to leave the bandwidth wars somewhere else. :(

You don't want to run ESSB or AM, then don't. On an uncrowded band there's no foul in running AM or ESSB, or any other legal mode.

The incessant lectures on bandwidth aren't necessary or fruitful.

Grant/NQ5T

Sent from my iPhone

On Jan 27, 2013, at 11:07 PM, Don Wilhelm <[hidden email]> wrote:

> IMHO, those who want "studio quality" SSB should obtain a commercial broadcasting license and use that instead of using the ham bands for "wideband SSB". Not only is it wasted bandwidth, but it is QRM to adjacent stations. My opinion of AM on the ham bands is similar. Technology has advanced to the point where minimum bandwidth to achieve effective communications is all that should be used, and an audio bandwidth of 300 to 2600 Hz is more than adequate for good communications.
>
> 73,
> Don W3FPR
>
> On 1/27/2013 11:47 PM, Richard Fjeld wrote:
>> I have watched ESSB signals on the P3 and I have this question; most receivers are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on SSB. That is about all they are going to hear when listening to a wide ESSB signal. Unless someone with ESSB is in qso with a station of the same width, isn't it going to be wasted bandwidth?
>>
>> Rich, n0ce
>> ----- Original Message -----
>> From: Matt Zilmer
>> To: Mike Markowski
>> Cc: [hidden email]
>> Sent: Saturday, January 26, 2013 8:08 PM
>> Subject: Re: [Elecraft] ESSB Equalization
>>
>>
>> It works quite well too! Looks like Wide SSB TX and plain SSB TX are
>> always left with the same profile.
>>
>> 73,
>> matt W6NIA
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Richard Fjeld

Re: ESSB Equalization

OM's, Please don't assume my question is a lecture on bandwidth. I am interested in the technical aspect of ESSB. Am I right in thinking the Rx stations with standard filter widths are not going to hear the extra Tx width of ESSB?

Alan, I did read your reply.

Rich, n0ce
----- Original Message -----
----- Original Message -----
From: Grant Youngman
To: [hidden email]
Cc: [hidden email]
Sent: Sunday, January 27, 2013 11:26 PM
Subject: Re: [Elecraft] ESSB Equalization

I wish it were possible to leave the bandwidth wars somewhere else. :(

You don't want to run ESSB or AM, then don't. On an uncrowded band there's no foul in running AM or ESSB, or any other legal mode.

The incessant lectures on bandwidth aren't necessary or fruitful.

Grant/NQ5T

Sent from my iPhone

On Jan 27, 2013, at 11:07 PM, Don Wilhelm <[hidden email]> wrote:

> IMHO, those who want "studio quality" SSB should obtain a commercial broadcasting license and use that instead of using the ham bands for "wideband SSB". Not only is it wasted bandwidth, but it is QRM to adjacent stations. My opinion of AM on the ham bands is similar. Technology has advanced to the point where minimum bandwidth to achieve effective communications is all that should be used, and an audio bandwidth of 300 to 2600 Hz is more than adequate for good communications.
>
> 73,
> Don W3FPR
>
> On 1/27/2013 11:47 PM, Richard Fjeld wrote:
>> I have watched ESSB signals on the P3 and I have this question; most receivers are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on SSB. That is about all they are going to hear when listening to a wide ESSB signal. Unless someone with ESSB is in qso with a station of the same width, isn't it going to be wasted bandwidth?
>>
>> Rich, n0ce
>> ----- Original Message -----
>> From: Matt Zilmer
>> To: Mike Markowski
>> Cc: [hidden email]
>> Sent: Saturday, January 26, 2013 8:08 PM
>> Subject: Re: [Elecraft] ESSB Equalization
>>
>>
>> It works quite well too! Looks like Wide SSB TX and plain SSB TX are
>> always left with the same profile.
>>
>> 73,
>> matt W6NIA
>
> ______________________________________________________________
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Geoffrey Mackenzie-Kennedy-3

Re: ESSB Equalization

Rich,

Yes, you are right.

If you view the transmitter and receiver as a path along which the ESSB
transmitter's mike audio travels, then the transmitter's "wide" filter and
the receiver's "narrow" filter are in effect connected in series. Thus in
this case the combined response of the Tx and Rx filters will determine the
bandwidth of the audio heard at the receiver's output, which cannot be wider
than that of the receiver's "narrow" filter.

73,
Geoff
LX2AO

On January 28, 2013 at 7:07 AM, Richard Fjeld wrote:

> OM's, Please don't assume my question is a lecture on bandwidth. I am
> interested in the technical aspect of ESSB. Am I right in thinking the Rx
> stations with standard filter widths are not going to hear the extra Tx
> width of ESSB?
>
> Alan, I did read your reply.
>
> Rich, n0ce

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Eric Swartz - WA6HHQ

Re: ESSB Equalization

Administrator

In reply to this post by Scott Manthe-2

Let's end of the ESSB debate thread.

Eric
List Moderator
elecraft.com
_..._

On Jan 27, 2013, at 9:17 PM, Scott Manthe <[hidden email]> wrote:

> Wasted bandwidth, indeed. This is not the place to debate "ESSB." It's a dead horse that has been beaten from the pasture to the glue factory.
>
> 73,
> Scott, N9AA
>
>
> On 1/28/13 12:07 AM, Don Wilhelm wrote:
>> IMHO, those who want "studio quality" SSB should obtain a commercial broadcasting license and use that instead of using the ham bands for "wideband SSB". Not only is it wasted bandwidth, but it is QRM to adjacent stations. My opinion of AM on the ham bands is similar. Technology has advanced to the point where minimum bandwidth to achieve effective communications is all that should be used, and an audio bandwidth of 300 to 2600 Hz is more than adequate for good communications.
>>
>> 73,
>> Don W3FPR
>
> ______________________________________________________________
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