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K3 MCU 4.17 (APF beta) kills SSB output?

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Nate Bargmann

K3 MCU 4.17 (APF beta) kills SSB output?

I updated my K3 to MCU 4.17 beta last night along with DSP 2.65 and FPU
1.4(?) and now today I notice that my SSB output is down about 3 dB. I
can only coax about 50 Watts peak out of it and I've made no changes to
microphone, TX EQ, Mic Gain, Compression, or output power (set to 100 W).
CONFIG:TXG VCE is set to 1.0 dB as before.

On CW I get a full 100 Watts peak.

Anyone else seeing this?

73, de Nate >>

--

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possible worlds. The pessimist fears this is true."

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Nate Bargmann

Re: K3 MCU 4.17 (APF beta) kills SSB output?

Additional testing shows that when I set my power down to 5 Watts and
then back up to 100 Watts results in a max peak output of 50 Watts on
SSB on both an external and the K3's Wattmeter. Setting the mode to CW
results in 100 Watts output and reverting back to SSB I can get about 75
Watts peak on both meters.

73, de Nate >>

--

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possible worlds. The pessimist fears this is true."

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K2QI

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

Nate, have you tried reloading the firmware? I'd give that a shot first. If that doesn't help, revert to the previous version and test again.

In my case, latest beta firmware installed with no issues to report.

73 de James K2QI
------Original Message------
From: Nate Bargmann
Sender: [hidden email]
To: Elecraft Reflector
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?
Sent: Nov 4, 2010 13:32

Additional testing shows that when I set my power down to 5 Watts and
then back up to 100 Watts results in a max peak output of 50 Watts on
SSB on both an external and the K3's Wattmeter. Setting the mode to CW
results in 100 Watts output and reverting back to SSB I can get about 75
Watts peak on both meters.

73, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

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--... ...-- -.. . .--- .- -- . ...

Jim Rogers, W4ATK

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

In a word, yes....

Jim, W4ATK

On Nov 4, 2010, at 12:18 PM, Nate Bargmann wrote:

> I updated my K3 to MCU 4.17 beta last night along with DSP 2.65 and
> FPU
> 1.4(?) and now today I notice that my SSB output is down about 3
> dB. I
> can only coax about 50 Watts peak out of it and I've made no changes
> to
> microphone, TX EQ, Mic Gain, Compression, or output power (set to
> 100 W).
> CONFIG:TXG VCE is set to 1.0 dB as before.
>
> On CW I get a full 100 Watts peak.
>
> Anyone else seeing this?
>
> 73, de Nate >>
>
> --
>
> "The optimist proclaims that we live in the best of all
> possible worlds. The pessimist fears this is true."
>
> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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JIM ROGERS
[hidden email]
http://web.me.com/jimrogers_w4atk

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Jim Rogers, W4ATK

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

I went through the CONFIG menus to see what might have changed while
in SSB. I found DUAL PB had APF on. I was unable to turn it off while
in SSB, so went back to CW mode turned the APF off (nor) and returned
to SSB and all was normal. Full output.

I have confirmed you can only turn APF on/off while in CW mode.
It would then seem that APF should be turned off automatically when in
any mode other than CW.

JIM ROGERS
[hidden email]
http://web.me.com/jimrogers_w4atk

JIM ROGERS
[hidden email]
http://web.me.com/jimrogers_w4atk

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Nr4c

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Jim Rogers, W4ATK

I'm new to all this. I noticed a lower output last night as well,
after the ...17 load. Should we do a calibration and configuration
after a FW update? Time to get out the SG2 again?

...bc

BTW: the APF looks real cool. I'm not a CW operator, but this makes
me drool a little bit.

..nr4c
Quoting JAMES ROGERS <[hidden email]>:

> In a word, yes....
>
>
> Jim, W4ATK
>
> On Nov 4, 2010, at 12:18 PM, Nate Bargmann wrote:
>
>> I updated my K3 to MCU 4.17 beta last night along with DSP 2.65 and
>> FPU
>> 1.4(?) and now today I notice that my SSB output is down about 3
>> dB. I
>> can only coax about 50 Watts peak out of it and I've made no changes
>> to
>> microphone, TX EQ, Mic Gain, Compression, or output power (set to
>> 100 W).
>> CONFIG:TXG VCE is set to 1.0 dB as before.
>>
>> On CW I get a full 100 Watts peak.
>>
>> Anyone else seeing this?
>>
>> 73, de Nate >>
>>
>> --
>>
>> "The optimist proclaims that we live in the best of all
>> possible worlds. The pessimist fears this is true."
>>
>> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
>> ______________________________________________________________
>> 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
>
> JIM ROGERS
> [hidden email]
> http://web.me.com/jimrogers_w4atk
>
>
>
>
> ______________________________________________________________
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> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Stephen Prior

Re: K3 MCU 4.17 (APF beta) kills SSB output?

I don't have any lack of ssb power output here after the new download with
APF enabled in config.

IO have to say I think the new APF is very good indeed. Running 4.17 on the
K3 and 00.41 on the P3.

73 Stephen G4SJP

On 04/11/2010 18:56, "[hidden email]" <[hidden email]> wrote:

>
> I'm new to all this. I noticed a lower output last night as well,
> after the ...17 load. Should we do a calibration and configuration
> after a FW update? Time to get out the SG2 again?
>
> ...bc
>
> BTW: the APF looks real cool. I'm not a CW operator, but this makes
> me drool a little bit.
>
>
> ..nr4c
> Quoting JAMES ROGERS <[hidden email]>:
>
>> In a word, yes....
>>
>>
>> Jim, W4ATK
>>
>> On Nov 4, 2010, at 12:18 PM, Nate Bargmann wrote:
>>
>>> I updated my K3 to MCU 4.17 beta last night along with DSP 2.65 and
>>> FPU
>>> 1.4(?) and now today I notice that my SSB output is down about 3
>>> dB. I
>>> can only coax about 50 Watts peak out of it and I've made no changes
>>> to
>>> microphone, TX EQ, Mic Gain, Compression, or output power (set to
>>> 100 W).
>>> CONFIG:TXG VCE is set to 1.0 dB as before.
>>>
>>> On CW I get a full 100 Watts peak.
>>>
>>> Anyone else seeing this?
>>>
>>> 73, de Nate >>
>>>
>>> --
>>>
>>> "The optimist proclaims that we live in the best of all
>>> possible worlds. The pessimist fears this is true."
>>>
>>> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
>>> ______________________________________________________________
>>> 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
>>
>> JIM ROGERS
>> [hidden email]
>> http://web.me.com/jimrogers_w4atk
>>
>>
>>
>>
>> ______________________________________________________________
>> 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
>>
>
>
> ______________________________________________________________
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Nate Bargmann

Re: K3 MCU 4.17 (APF beta) kills SSB output?

* On 2010 04 Nov 14:06 -0500, Stephen Prior wrote:
> I don't have any lack of ssb power output here after the new download with
> APF enabled in config.

Interesting. Thanks to Jim for finding that setting Dual PB to Nor will
correct this. Hopefully, Wayne is reading this thread. :-)

> IO have to say I think the new APF is very good indeed. Running 4.17 on the
> K3 and 00.41 on the P3.

I agree. I think it's a worthwhile addition even with this small bug.

73, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
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Guy, K2AV

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Jim Rogers, W4ATK

I am unable to duplicate your conditions, I am only able to get APF on
in CW mode. Wonder if this would be something where a previously
uncontrolled memory bit is in an undetermined state, leaving a strange
"remembered" condition when those bits are used for the first time?

73, Guy.

On Thu, Nov 4, 2010 at 2:50 PM, JAMES ROGERS <[hidden email]> wrote:

> I went through the CONFIG menus to see what might have changed while
> in SSB. I found DUAL PB had APF on. I was unable to turn it off while
> in SSB, so went back to CW mode turned the APF off (nor) and returned
> to SSB and all was normal. Full output.
>
> I have confirmed you can only turn APF on/off while in CW mode.
> It would then seem that APF should be turned off automatically when in
> any mode other than CW.
>
> JIM ROGERS
> [hidden email]
> http://web.me.com/jimrogers_w4atk
>
>
>
> JIM ROGERS
> [hidden email]
> http://web.me.com/jimrogers_w4atk
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
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>

Dave, W8OV

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

I had no loss of SSB power output after the 4.17 Beta install. The APF
works wonderfully, with only a hint of ringing to my ears. Really nice
addition to the K3.

--Dave, W8OV

On 11/4/2010 3:11 PM, Nate Bargmann wrote:

> * On 2010 04 Nov 14:06 -0500, Stephen Prior wrote:
>> I don't have any lack of ssb power output here after the new download with
>> APF enabled in config.
> Interesting. Thanks to Jim for finding that setting Dual PB to Nor will
> correct this. Hopefully, Wayne is reading this thread. :-)
>
>> IO have to say I think the new APF is very good indeed. Running 4.17 on the
>> K3 and 00.41 on the P3.
> I agree. I think it's a worthwhile addition even with this small bug.
>
> 73, de Nate>>
>

Nate Bargmann

Re: K3 MCU 4.17 (APF beta) kills SSB output?

* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
> I had no loss of SSB power output after the 4.17 Beta install. The APF
> works wonderfully, with only a hint of ringing to my ears. Really nice
> addition to the K3.

At least some of you aren't seeing this. :-)

James Rogers suggested turning the Mic gain to 0 and then back up and he
was getting good output. After I did that, I could only get about 25
Watts peak on both meters. I switched to CW mode, transmitted a short
carrier which showed 100 Watts on both meters (power control set to
100). Switching back to SSB both meters showed about 70 Watts. I have
since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
peak on each meter (I say fourrrrr in a normal voice to get the K3's
meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
dB.

I'm not sure that rolling back to the last stable firmware would solve
this or be fraught with other issues. Generally, roll-backs don't work
all that well in other devices.

73, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
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wayne burdick

Re: K3 MCU 4.17 (APF beta) kills SSB output?

Administrator

Please retry TX gain calibration on affected bands. This is the usual
cure for a difference between CW and SSB power output.

Wayne
N6KR

----
http://www.elecraft.com

On Nov 4, 2010, at 4:30 PM, Nate Bargmann <[hidden email]> wrote:

> * On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
>> I had no loss of SSB power output after the 4.17 Beta install. The
>> APF
>> works wonderfully, with only a hint of ringing to my ears. Really
>> nice
>> addition to the K3.
>
> At least some of you aren't seeing this. :-)
>
> James Rogers suggested turning the Mic gain to 0 and then back up
> and he
> was getting good output. After I did that, I could only get about 25
> Watts peak on both meters. I switched to CW mode, transmitted a short
> carrier which showed 100 Watts on both meters (power control set to
> 100). Switching back to SSB both meters showed about 70 Watts. I
> have
> since bumped TXG VCE up to the max, 3.0 dB and am getting about 90
> Watts
> peak on each meter (I say fourrrrr in a normal voice to get the K3's
> meter to stabilize for a bit). I had previously had TXG VCE set to
> 1.0
> dB.
>
> I'm not sure that rolling back to the last stable firmware would solve
> this or be fraught with other issues. Generally, roll-backs don't
> work
> all that well in other devices.
>
> 73, de Nate >>
>
> --
>
> "The optimist proclaims that we live in the best of all
> possible worlds. The pessimist fears this is true."
>
> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
> ______________________________________________________________
> 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

K2QI

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

Well, rolling back is worth a shot. I've never had problems reverting to previous versions. Plus, look at it this way - what variables have changed? If this issue manifested itself after the last fw update, then that should be a good place to start.

James K2QI
Sent via BlackBerry from T-Mobile

-----Original Message-----
From: Nate Bargmann <[hidden email]>
Sender: [hidden email]
Date: Thu, 4 Nov 2010 18:30:44
To: <[hidden email]>
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
> I had no loss of SSB power output after the 4.17 Beta install. The APF
> works wonderfully, with only a hint of ringing to my ears. Really nice
> addition to the K3.

At least some of you aren't seeing this. :-)

James Rogers suggested turning the Mic gain to 0 and then back up and he
was getting good output. After I did that, I could only get about 25
Watts peak on both meters. I switched to CW mode, transmitted a short
carrier which showed 100 Watts on both meters (power control set to
100). Switching back to SSB both meters showed about 70 Watts. I have
since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
peak on each meter (I say fourrrrr in a normal voice to get the K3's
meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
dB.

I'm not sure that rolling back to the last stable firmware would solve
this or be fraught with other issues. Generally, roll-backs don't work
all that well in other devices.

73, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
______________________________________________________________
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Help: http://mailman.qth.net/mmfaq.htm
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--... ...-- -.. . .--- .- -- . ...

Dave Perry N4QS

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

I am seeing the same reduction in SSB output power. I installed 4.17 Beta
last night. It appears that the reduced power only occurs when I have APF
activated. I have twice restored SSB power by doing the following: 1).
Changing mode back to CW, 2). Going to Dual PB in Config menu and turning
APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is
restored back to a full 100 watts. With APF set to on, SSB power is reduced
to about 70 watts. I confirmed this on 17M by repeating the process twice,
and I then tried 20 M SSB and the power was back to 70 watts (after I had
turned APF back on.) Is this a problem with the beta release? I saw
Wayne's suggestion to do a TX gain calibration, but it seems strange that I
would only need to do this after installing Beta 4.17.

APF works great, but I need to resolve this SSB power issue. I may try RTTY
next to see what happens in that mode.

Dave, N4QS

----- Original Message -----
From: "Nate Bargmann" <[hidden email]>
To: <[hidden email]>
Sent: Thursday, November 04, 2010 6:30 PM
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

>* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
>> I had no loss of SSB power output after the 4.17 Beta install. The APF
>> works wonderfully, with only a hint of ringing to my ears. Really nice
>> addition to the K3.
>
> At least some of you aren't seeing this. :-)
>
> James Rogers suggested turning the Mic gain to 0 and then back up and he
> was getting good output. After I did that, I could only get about 25
> Watts peak on both meters. I switched to CW mode, transmitted a short
> carrier which showed 100 Watts on both meters (power control set to
> 100). Switching back to SSB both meters showed about 70 Watts. I have
> since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
> peak on each meter (I say fourrrrr in a normal voice to get the K3's
> meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
> dB.
>
> I'm not sure that rolling back to the last stable firmware would solve
> this or be fraught with other issues. Generally, roll-backs don't work
> all that well in other devices.
>
> 73, de Nate >>
>
> --
>
> "The optimist proclaims that we live in the best of all
> possible worlds. The pessimist fears this is true."
>
> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
> ______________________________________________________________
> 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
>

Guy, K2AV

Re: K3 MCU 4.17 (APF beta) kills SSB output?

Hi Dave,

In CW mode, in CONFIG:PB CTRL, what value is in SHIFT= ??

Thanks, Guy.

On Thu, Nov 4, 2010 at 8:34 PM, Dave Perry N4QS <[hidden email]> wrote:

> I am seeing the same reduction in SSB output power. I installed 4.17 Beta
> last night. It appears that the reduced power only occurs when I have APF
> activated. I have twice restored SSB power by doing the following: 1).
> Changing mode back to CW, 2). Going to Dual PB in Config menu and turning
> APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is
> restored back to a full 100 watts. With APF set to on, SSB power is reduced
> to about 70 watts. I confirmed this on 17M by repeating the process twice,
> and I then tried 20 M SSB and the power was back to 70 watts (after I had
> turned APF back on.) Is this a problem with the beta release? I saw
> Wayne's suggestion to do a TX gain calibration, but it seems strange that I
> would only need to do this after installing Beta 4.17.
>
> APF works great, but I need to resolve this SSB power issue. I may try RTTY
> next to see what happens in that mode.
>
> Dave, N4QS
>
>
> ----- Original Message -----
> From: "Nate Bargmann" <[hidden email]>
> To: <[hidden email]>
> Sent: Thursday, November 04, 2010 6:30 PM
> Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?
>
>
>>* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
>>> I had no loss of SSB power output after the 4.17 Beta install. The APF
>>> works wonderfully, with only a hint of ringing to my ears. Really nice
>>> addition to the K3.
>>
>> At least some of you aren't seeing this. :-)
>>
>> James Rogers suggested turning the Mic gain to 0 and then back up and he
>> was getting good output. After I did that, I could only get about 25
>> Watts peak on both meters. I switched to CW mode, transmitted a short
>> carrier which showed 100 Watts on both meters (power control set to
>> 100). Switching back to SSB both meters showed about 70 Watts. I have
>> since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
>> peak on each meter (I say fourrrrr in a normal voice to get the K3's
>> meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
>> dB.
>>
>> I'm not sure that rolling back to the last stable firmware would solve
>> this or be fraught with other issues. Generally, roll-backs don't work
>> all that well in other devices.
>>
>> 73, de Nate >>
>>
>> --
>>
>> "The optimist proclaims that we live in the best of all
>> possible worlds. The pessimist fears this is true."
>>
>> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
>> ______________________________________________________________
>> 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
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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>

Dave Perry N4QS

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Dave Perry N4QS

Now I seem to have a real problem. I did a TX Gain calibration using the K3
Utility for both 5 and 50 watts. I worked perfectly and tx gain appeared to
be right on all bands. I then did some testing into a dummy load with RTTY.
I noticed that power would start out at 25 watts and it would take several
transmissions to get it up to 70 to 100 watts. So I decided to do a
wattmeter calibration. I had selected WMTR LP and was attempting to do the
5.0 W calibration into a dummy load. But I could not get the output power
to change much and after several tries I got a high current reading. Now I
can get audio only out of the left side of headphones and when I attempt to
reselect the WTMR parameter it is no longer there. The selection in Config
skips from VFO OFS to XVn ON. I assume I have blown something out.
However, I am considering reverting back to MCU version 4.14. Any other
suggestions?

Thanks in advance. I would hate to see the K3 go down right before the SS
CW weekend.

Dave, N4QS

----- Original Message -----
From: "Dave Perry N4QS" <[hidden email]>
To: "Nate Bargmann" <[hidden email]>; <[hidden email]>
Sent: Thursday, November 04, 2010 7:34 PM
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

>I am seeing the same reduction in SSB output power. I installed 4.17 Beta
> last night. It appears that the reduced power only occurs when I have APF
> activated. I have twice restored SSB power by doing the following: 1).
> Changing mode back to CW, 2). Going to Dual PB in Config menu and turning
> APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is
> restored back to a full 100 watts. With APF set to on, SSB power is
> reduced
> to about 70 watts. I confirmed this on 17M by repeating the process
> twice,
> and I then tried 20 M SSB and the power was back to 70 watts (after I had
> turned APF back on.) Is this a problem with the beta release? I saw
> Wayne's suggestion to do a TX gain calibration, but it seems strange that
> I
> would only need to do this after installing Beta 4.17.
>
> APF works great, but I need to resolve this SSB power issue. I may try
> RTTY
> next to see what happens in that mode.
>
> Dave, N4QS
>
>
> ----- Original Message -----
> From: "Nate Bargmann" <[hidden email]>
> To: <[hidden email]>
> Sent: Thursday, November 04, 2010 6:30 PM
> Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?
>
>
>>* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
>>> I had no loss of SSB power output after the 4.17 Beta install. The APF
>>> works wonderfully, with only a hint of ringing to my ears. Really nice
>>> addition to the K3.
>>
>> At least some of you aren't seeing this. :-)
>>
>> James Rogers suggested turning the Mic gain to 0 and then back up and he
>> was getting good output. After I did that, I could only get about 25
>> Watts peak on both meters. I switched to CW mode, transmitted a short
>> carrier which showed 100 Watts on both meters (power control set to
>> 100). Switching back to SSB both meters showed about 70 Watts. I have
>> since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
>> peak on each meter (I say fourrrrr in a normal voice to get the K3's
>> meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
>> dB.
>>
>> I'm not sure that rolling back to the last stable firmware would solve
>> this or be fraught with other issues. Generally, roll-backs don't work
>> all that well in other devices.
>>
>> 73, de Nate >>
>>
>> --
>>
>> "The optimist proclaims that we live in the best of all
>> possible worlds. The pessimist fears this is true."
>>
>> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
>> ______________________________________________________________
>> 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
>>
>
> ______________________________________________________________
> 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
>

Dave Perry N4QS

Re: K3 MCU 4.17 (APF beta) kills SSB output?

Guy,

I solved the audio problem. Speakers had somehow been set to 1. Turned it
back to 2. But WMTR parameter is totally missing. So I guess I will try
reverting back to 4.14.

Dave

----- Original Message -----
From: "Guy Olinger K2AV" <[hidden email]>
To: "Dave Perry N4QS" <[hidden email]>
Sent: Thursday, November 04, 2010 9:16 PM
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

This is so completely wierd....

On Thu, Nov 4, 2010 at 10:07 PM, Dave Perry N4QS <[hidden email]> wrote:

> Now I seem to have a real problem. I did a TX Gain calibration using the
> K3
> Utility for both 5 and 50 watts. I worked perfectly and tx gain appeared
> to
> be right on all bands. I then did some testing into a dummy load with
> RTTY.
> I noticed that power would start out at 25 watts and it would take several
> transmissions to get it up to 70 to 100 watts. So I decided to do a
> wattmeter calibration. I had selected WMTR LP and was attempting to do the
> 5.0 W calibration into a dummy load. But I could not get the output power
> to change much and after several tries I got a high current reading. Now I
> can get audio only out of the left side of headphones and when I attempt
> to
> reselect the WTMR parameter it is no longer there. The selection in Config
> skips from VFO OFS to XVn ON. I assume I have blown something out.
> However, I am considering reverting back to MCU version 4.14. Any other
> suggestions?
>
> Thanks in advance. I would hate to see the K3 go down right before the SS
> CW weekend.
>
> Dave, N4QS
>
> ----- Original Message -----
> From: "Dave Perry N4QS" <[hidden email]>
> To: "Nate Bargmann" <[hidden email]>; <[hidden email]>
> Sent: Thursday, November 04, 2010 7:34 PM
> Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?
>
>
>>I am seeing the same reduction in SSB output power. I installed 4.17 Beta
>> last night. It appears that the reduced power only occurs when I have APF
>> activated. I have twice restored SSB power by doing the following: 1).
>> Changing mode back to CW, 2). Going to Dual PB in Config menu and turning
>> APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is
>> restored back to a full 100 watts. With APF set to on, SSB power is
>> reduced
>> to about 70 watts. I confirmed this on 17M by repeating the process
>> twice,
>> and I then tried 20 M SSB and the power was back to 70 watts (after I had
>> turned APF back on.) Is this a problem with the beta release? I saw
>> Wayne's suggestion to do a TX gain calibration, but it seems strange that
>> I
>> would only need to do this after installing Beta 4.17.
>>
>> APF works great, but I need to resolve this SSB power issue. I may try
>> RTTY
>> next to see what happens in that mode.
>>
>> Dave, N4QS
>>
>>
>> ----- Original Message -----
>> From: "Nate Bargmann" <[hidden email]>
>> To: <[hidden email]>
>> Sent: Thursday, November 04, 2010 6:30 PM
>> Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?
>>
>>
>>>* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
>>>> I had no loss of SSB power output after the 4.17 Beta install. The APF
>>>> works wonderfully, with only a hint of ringing to my ears. Really nice
>>>> addition to the K3.
>>>
>>> At least some of you aren't seeing this. :-)
>>>
>>> James Rogers suggested turning the Mic gain to 0 and then back up and he
>>> was getting good output. After I did that, I could only get about 25
>>> Watts peak on both meters. I switched to CW mode, transmitted a short
>>> carrier which showed 100 Watts on both meters (power control set to
>>> 100). Switching back to SSB both meters showed about 70 Watts. I have
>>> since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
>>> peak on each meter (I say fourrrrr in a normal voice to get the K3's
>>> meter to stabilize for a bit). I had previously had TXG VCE set to 1.0
>>> dB.
>>>
>>> I'm not sure that rolling back to the last stable firmware would solve
>>> this or be fraught with other issues. Generally, roll-backs don't work
>>> all that well in other devices.
>>>
>>> 73, de Nate >>
>>>
>>> --
>>>
>>> "The optimist proclaims that we live in the best of all
>>> possible worlds. The pessimist fears this is true."
>>>
>>> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
>>> ______________________________________________________________
>>> 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
>>>
>>
>> ______________________________________________________________
>> 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
>>
>
> ______________________________________________________________
> 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
>

k6dgw

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Nate Bargmann

OK, my SSB output was low too. I'm on phone so rarely, were it not for
the reflector, I'd probably never have checked and when I did find out,
the thread would have already died. I did the TX Gain calibration as
Wayne suggested, all seems to be well on all bands. Apparently, the DL
in my MFJ tuner isn't all that 50 ohms-ish on 6m, but the trusty Heath
Cantenna is.

The APF feature is really quite amazing. I have to miss SS CW, family
stuff, but I'm anxious to try it out for real. It already got me 9U0A,
he was whisper weak, maybe S[minus]1, I got "9A" and wondered why the
pileup on a 9A? APF in, he sounded S5. S-meter was still on the peg
however.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org

On 11/4/2010 10:32 AM, Nate Bargmann wrote:
> Additional testing shows that when I set my power down to 5 Watts and
> then back up to 100 Watts results in a max peak output of 50 Watts on
> SSB on both an external and the K3's Wattmeter. Setting the mode to CW
> results in 100 Watts output and reverting back to SSB I can get about 75
> Watts peak on both meters.
>
> 73, de Nate>>
>

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Nate Bargmann

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Dave Perry N4QS

* On 2010 04 Nov 21:10 -0500, Dave Perry N4QS wrote:
> Now I seem to have a real problem. I did a TX Gain calibration using the K3
> Utility for both 5 and 50 watts. I worked perfectly and tx gain appeared to
> be right on all bands. I then did some testing into a dummy load with RTTY.
> I noticed that power would start out at 25 watts and it would take several
> transmissions to get it up to 70 to 100 watts.

This is precisely what I had been seeing, Dave.

On lyle's suggestion I rolled the MCU back to 4.14 and the FPF to 1.13
and left the DSP at 2.65. The SSB ouput power persisted so I rolled the
DSP back to 2.60 and SSB power is back to normal matching CW power
again. The improvement was immediate.

> Thanks in advance. I would hate to see the K3 go down right before the SS
> CW weekend.

Sorry to hear of your issues. At Wayne's suggestion I had done the TX
Gain calibration on the beta firmware with no change in behavior. I
will, however, bump back up to the beta before SS. Now that I know
what's going on I can work with it.

73, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Philippe Trottet

Re: K3 MCU 4.17 (APF beta) kills SSB output?

In reply to this post by Dave Perry N4QS

Same thing to me, I was noticed it when put my Amp w/GU84B on, need 20w+ to obtain 500w in ssb instead of my normal 16w. MH2 Mic dynamics was also affected and obliged to increase the Mic gain consequently.
When back to NOR Dual PB features it comes back almost to normal power but seems a bit lack of dynamic.
When download back the 4.14, everything returns to "normal".
I have download again the 4.17 and same "problem" occurs but let it like this the time a solution will be available on line.
Anyway the APF is really impressive to extract the weak signal and really enjoyed it. It is also a must to catch the beacons qrg's.
Bst 73s
Philippe A65BI

>>> "Dave Perry N4QS" <[hidden email]> 05-11-2010 4:34 >>>
I am seeing the same reduction in SSB output power. I installed 4.17 Beta
last night. It appears that the reduced power only occurs when I have APF
activated. I have twice restored SSB power by doing the following: 1).
Changing mode back to CW, 2). Going to Dual PB in Config menu and turning
APF off, 3). exiting Config menu, 4). changing mode back to SSB. Power is
restored back to a full 100 watts. With APF set to on, SSB power is reduced
to about 70 watts. I confirmed this on 17M by repeating the process twice,
and I then tried 20 M SSB and the power was back to 70 watts (after I had
turned APF back on.) Is this a problem with the beta release? I saw
Wayne's suggestion to do a TX gain calibration, but it seems strange that I
would only need to do this after installing Beta 4.17.

APF works great, but I need to resolve this SSB power issue. I may try RTTY
next to see what happens in that mode.

Dave, N4QS

----- Original Message -----
From: "Nate Bargmann" <[hidden email]>
To: <[hidden email]>
Sent: Thursday, November 04, 2010 6:30 PM
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

______________________________________________________________
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Post: mailto:[hidden email]

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