Suggested AGC settings for Beta 3.03

[Jack Colson]

After the dust settles it would be nice to get a general idea of
preferred settings for contest conditions AGC settings.

Thank you,
73
Jack, W3TMZ

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[wayne burdick]

Hi Jack,

I'm presently using all the defaults, plus AGC HLD = 0.3 (slow AGC hold
time in seconds) and AGC DCY = Soft (soft-decay characteristic for both
fast and slow AGC). The AGC HLD and AGC DCY settings should prove very
useful during pileups, although some ops may prefer to leave them off.
As you suggested, experimentation is in order.

73,
Wayne
N6KR

On Mar 17, 2009, at 4:03 PM, Jack Colson wrote:

> After the dust settles it would be nice to get a general idea of
> preferred settings for contest conditions AGC settings.
>

---

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[list1]

Hi Wayne and all,
Just before our MARS net tonight I installed Beta 3.03.
When the net started I had a lot of distortion on all the signals regardless
of signal strength.  It sounded like the static went up as stations spoke.
I did not know what was changed so I reloaded FW 2.78 complete (during the
net!).  I then got back the good signal quality I was used to.  I then
copied down the agc settings which I believe are stock.

I then reloaded beta 3.03 (during the net!),  The distortion was back.  All
the AGC settings were the same except for the new AGC variable "AGC DCY" was
set to "nor".  I changed this to "soft" and got most of the nice voice
quality back (not all - still some distortion).  I then changed AGC HLD to
.03 like you suggest.  I wll keep these settings for now.

73,
Steve Pituch, W2MY, AAR6CX

-----Original Message-----
From: wayne burdick

Hi Jack,

I'm presently using all the defaults, plus AGC HLD = 0.3 (slow AGC hold
time in seconds) and AGC DCY = Soft (soft-decay characteristic for both
fast and slow AGC). The AGC HLD and AGC DCY settings should prove very
useful during pileups, although some ops may prefer to leave them off.
As you suggested, experimentation is in order.

73,
Wayne
N6KR

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[wayne burdick]

Steve,

I suspect you had one or two EEPROM locations that were not set
correctly after the upgrade. There may have been an incompatibility
between 2.78 and 3.03 that I didn't catch.

If this happens to anyone else when they go to 3.03, I'll dig into it
further.

BTW, the suggested value for AGC HLD is 0.30 (seconds), not 0.03. But
feel free to experiment.

73,
Wayne
N6KR


On Mar 17, 2009, at 6:00 PM, list1 wrote:

> Hi Wayne and all,
> Just before our MARS net tonight I installed Beta 3.03.
> When the net started I had a lot of distortion on all the signals
> regardless
> of signal strength.  It sounded like the static went up as stations
> spoke.
> I did not know what was changed so I reloaded FW 2.78 complete (during
> the
> net!).  I then got back the good signal quality I was used to.  I then
> copied down the agc settings which I believe are stock.
>
> I then reloaded beta 3.03 (during the net!),  The distortion was back.
>  All
> the AGC settings were the same except for the new AGC variable "AGC
> DCY" was
> set to "nor".  I changed this to "soft" and got most of the nice voice
> quality back (not all - still some distortion).  I then changed AGC
> HLD to
> .03 like you suggest.  I wll keep these settings for now.
>
> 73,
> Steve Pituch, W2MY, AAR6CX
>
> -----Original Message-----
> From: wayne burdick
>
> Hi Jack,
>
> I'm presently using all the defaults, plus AGC HLD = 0.3 (slow AGC hold
> time in seconds) and AGC DCY = Soft (soft-decay characteristic for both
> fast and slow AGC). The AGC HLD and AGC DCY settings should prove very
> useful during pileups, although some ops may prefer to leave them off.
> As you suggested, experimentation is in order.
>
> 73,
> Wayne
> N6KR
>
> ______________________________________________________________
> 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
>
>

... [show rest of quote]

---

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[list1]

Hi All,
Sorry,
I just changed AGC HLD to .3 (not .03).  I think that the quality is much
better now probably like it was with FW 2.78.
Sorry for the confusion.  (I knew Wayne would not mess up like that!)
72,
Steve, W2MY

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of list1
Sent: Tuesday, March 17, 2009 8:00 PM
To: [hidden email]
Subject: Re: [Elecraft] Suggested AGC settings for Beta 3.03


Hi Wayne and all,
Just before our MARS net tonight I installed Beta 3.03.
When the net started I had a lot of distortion on all the signals regardless
of signal strength.  It sounded like the static went up as stations spoke.
I did not know what was changed so I reloaded FW 2.78 complete (during the
net!).  I then got back the good signal quality I was used to.  I then
copied down the agc settings which I believe are stock.

I then reloaded beta 3.03 (during the net!),  The distortion was back.  All
the AGC settings were the same except for the new AGC variable "AGC DCY" was
set to "nor".  I changed this to "soft" and got most of the nice voice
quality back (not all - still some distortion).  I then changed AGC HLD to
.03 like you suggest.  I wll keep these settings for now.

73,
Steve Pituch, W2MY, AAR6CX


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[list1]

Hi All,
On another net now.  

OK, using AGC HLD = .3 and AGC DCY = SOFT.
Quality sounds good.

With Version 2.78 AGC HLD defaulted to 0.0.  That was my problem.

Steve, W2MY, AAR6CX

-----Original Message-----
From: wayne burdick [mailto:[hidden email]]
Sent: Tuesday, March 17, 2009 8:10 PM
To: list1
Cc: [hidden email]
Subject: Re: Suggested AGC settings for Beta 3.03


Steve,

I suspect you had one or two EEPROM locations that were not set
correctly after the upgrade. There may have been an incompatibility
between 2.78 and 3.03 that I didn't catch.

If this happens to anyone else when they go to 3.03, I'll dig into it
further.

BTW, the suggested value for AGC HLD is 0.30 (seconds), not 0.03. But
feel free to experiment.

73,
Wayne
N6KR

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[Stephen Prior]

It sounds like I have the same problem as Jack, and I upgraded from 2.82.
The noise floor appears to rise with the signals and there is a crackle
generated by the speech peaks.  It all sounds quite strange.

Stephen G4SJP  K3#980


On 18/03/2009 01:00, "list1" <[hidden email]> wrote:

>
> Hi Wayne and all,
> Just before our MARS net tonight I installed Beta 3.03.
> When the net started I had a lot of distortion on all the signals regardless
> of signal strength.  It sounded like the static went up as stations spoke.
> I did not know what was changed so I reloaded FW 2.78 complete (during the
> net!).  I then got back the good signal quality I was used to.  I then
> copied down the agc settings which I believe are stock.
>
> I then reloaded beta 3.03 (during the net!),  The distortion was back.  All
> the AGC settings were the same except for the new AGC variable "AGC DCY" was
> set to "nor".  I changed this to "soft" and got most of the nice voice
> quality back (not all - still some distortion).  I then changed AGC HLD to
> .03 like you suggest.  I wll keep these settings for now.
>
> 73,
> Steve Pituch, W2MY, AAR6CX
>
> -----Original Message-----
> From: wayne burdick
>
> Hi Jack,
>
> I'm presently using all the defaults, plus AGC HLD = 0.3 (slow AGC hold
> time in seconds) and AGC DCY = Soft (soft-decay characteristic for both
> fast and slow AGC). The AGC HLD and AGC DCY settings should prove very
> useful during pileups, although some ops may prefer to leave them off.
> As you suggested, experimentation is in order.
>
> 73,
> Wayne
> N6KR
>
> ______________________________________________________________
> 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
>

... [show rest of quote]

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[AD6XY]

I had the same problem just now on upgrading. The AGC settings that default when you upgrade from 2.78 to 3.03 cause undesired effects. My AGC DCY was set to nor and AGC HLD set to 0 after the upgrade. Setting to Soft and 0.3 restored sanity. I don't think the AGC DCY setting makes that much difference here, it was the HLD setting that had the larger effect.

It is simple to fix but probably needs something in the release notes.

Mike




<quote author="wayne burdick">
Steve,

I suspect you had one or two EEPROM locations that were not set
correctly after the upgrade. There may have been an incompatibility
between 2.78 and 3.03 that I didn't catch.

If this happens to anyone else when they go to 3.03, I'll dig into it
further.

BTW, the suggested value for AGC HLD is 0.30 (seconds), not 0.03. But
feel free to experiment.

73,
Wayne
N6KR

[John Lemay]

Same issue here when I upgraded from 2.82 to 3.03. It certainly caused a
worrying moment or two.

Regards

John G4ZTR

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of AD6XY
Sent: 18 March 2009 08:35
To: [hidden email]
Subject: Re: [Elecraft] [K3] Suggested AGC settings for Beta 3.03


I had the same problem just now on upgrading. The AGC settings that default
when you upgrade from 2.78 to 3.03 cause undesired effects. My AGC DCY was
set to nor and AGC HLD set to 0 after the upgrade. Setting to Soft and 0.3
restored sanity. I don't think the AGC DCY setting makes that much
difference here, it was the HLD setting that had the larger effect.

It is simple to fix but probably needs something in the release notes.

Mike





Steve,

I suspect you had one or two EEPROM locations that were not set
correctly after the upgrade. There may have been an incompatibility
between 2.78 and 3.03 that I didn't catch.

If this happens to anyone else when they go to 3.03, I'll dig into it
further.

BTW, the suggested value for AGC HLD is 0.30 (seconds), not 0.03. But
feel free to experiment.

73,
Wayne
N6KR


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