K3 beta firmware revision 3.14 now available

[wayne burdick]

K3 beta-test firmware revision 3.14 (with DSP rev. 2.16) is now
available. For details, see the release notes below.

Please send any problem reports to [hidden email]. For
instructions on how to load beta firmware, please see:

         http://www.elecraft.com/K3/k3_software.htm

We recommend that you use the latest revision of K3 Utility, which can
also be found on the K3 software page.

73,
Wayne
N6KR

* * *

MCU 3.14 / DSP 2.16  May 9, 2009

* SPEAKER PROTECTION: If you’re set up for stereo speakers
(CONFIG:SPKRS = 2), but insert a mono speaker plug, the right
speaker output will be shorted to ground. This can cause excess
current drain if you turn volume up to high levels. The K3 now
detects this condition, automatically turning off the right
channel (and briefly flashing "SPRKS=1"). (It would be better,
of course, to use a stereo plug if you set SPKRS to 2, rather
than wait for the firmware to detect the mono plug.)

* The CONFIG:XVn RF display parameter can now be set up to
24999 MHz (24.9 GHz). Most PC control applications can also
display the GHz digits. However, the VFO will still only show
up to 999 MHz.


----

http://www.elecraft.com

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[Jon Kåre Hellan]

wayne burdick wrote:
> K3 beta-test firmware revision 3.14 (with DSP rev. 2.16) is now
> available. For details, see the release notes below.
>

I tried upgrading in the background while having breakfast, but something went wrong. I'll
have to investigate once I get back home. In the meantime, I'd appreciate a heads up or two
from people who have successfully upgraded. That would tell me that the problem is on my
end and not in the firmware file.

73
Jon LA4RT
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[Ron NA9F]

Jon I had no trouble loading in 3.14 and all worked for me.
Hope it works out ok for you. Might try downloading it again.

Ron NA9F



I tried upgrading in the background while having breakfast, but something went wrong. I'll
have to investigate once I get back home. In the meantime, I'd appreciate a heads up or two
from people who have successfully upgraded. That would tell me that the problem is on my
end and not in the firmware file.

73
Jon LA4RT
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[G4POP]

OK here to - no problem

Terry G4POP

Jon Kåre Hellan wrote

wayne burdick wrote:
> K3 beta-test firmware revision 3.14 (with DSP rev. 2.16) is now
> available. For details, see the release notes below.
>

I tried upgrading in the background while having breakfast, but something went wrong. I'll
have to investigate once I get back home. In the meantime, I'd appreciate a heads up or two
from people who have successfully upgraded. That would tell me that the problem is on my
end and not in the firmware file.

73
Jon LA4RT
______________________________________________________________
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... [show rest of quote]

... [show rest of quote]

[Jon Kåre Hellan]

G4POP wrote:
> OK here to - no problem
>
> Terry G4POP

Thans to both of you. No more replies needed :-)

Jon LA4RT

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[Guy, K2AV]

Upgraded mine last night.  No problems.

----- Original Message -----
From: "G4POP" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, May 13, 2009 8:15 AM
Subject: Re: [Elecraft] K3 beta firmware revision 3.14 now available

>
> OK here to - no problem
>
> Terry G4POP
>
>
>
> Jon Kåre Hellan wrote:
>>
>> wayne burdick wrote:
>>> K3 beta-test firmware revision 3.14 (with DSP rev. 2.16) is now
>>> available. For details, see the release notes below.
>>>
>>
>> I tried upgrading in the background while having breakfast, but something
>> went wrong. I'll
>> have to investigate once I get back home. In the meantime, I'd appreciate
>> a heads up or two
>> from people who have successfully upgraded. That would tell me that the
>> problem is on my
>> end and not in the firmware file.
>>
>> 73
>> Jon LA4RT
>> ______________________________________________________________
>> 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
>>
>>
>
> --
> View this message in context:
> http://n2.nabble.com/K3-beta-firmware-revision-3.14-now-available-tp2878791p2883361.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
> ______________________________________________________________
> 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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[K2QI]

Just out of curiosity Jon, but what error did you get during the upgrade?

73 de James K3JPS/2

On Wed, May 13, 2009 at 8:35 AM, Jon K Hellan <[hidden email]> wrote:

> G4POP wrote:
> > OK here to - no problem
> >
> > Terry G4POP
>
> Thans to both of you. No more replies needed :-)
>
> Jon LA4RT
>
> ______________________________________________________________
> 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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[pd0psb]

Anybody else tested this?
I can't get speaker protection to work.
Or does it only work with higher AF levels?

73'
Paul
PD0PSB


MCU 3.14 / DSP 2.16  May 9, 2009

* SPEAKER PROTECTION: If you’re set up for stereo speakers
(CONFIG:SPKRS = 2), but insert a mono speaker plug, the right
speaker output will be shorted to ground. This can cause excess
current drain if you turn volume up to high levels. The K3 now
detects this condition, automatically turning off the right
channel (and briefly flashing "SPRKS=1"). (It would be better,
of course, to use a stereo plug if you set SPKRS to 2, rather
than wait for the firmware to detect the mono plug.)

[wayne burdick]

Hi Paul,

Just plugging in a mono plug by itself is not detectable in firmware.
The protection kicks in as a result of a brief spike in AF amp current
drain. To observe this you need a mono plug, SPKRS=2, and moderate to
high volume setting with a strong signal in the passband. This will
eventually cause the AF amp chip to draw 1/2 to 1 amp of current on
peaks, which firmware can easily spot.

I wouldn't suggest forcing this condition intentionally. We tested it
on several K3s, and we know it works. But it is intended as a safety
feature, not as a substitute for using a stereo speaker plug when SPKRS
is set to 2.

73,
Wayne
N6KR

On May 21, 2009, at 7:54 AM, pd0psb wrote:

>
> Anybody else tested this?
> I can't get speaker protection to work.
> Or does it only work with higher AF levels?
>
> 73'
> Paul
> PD0PSB
>
>
> MCU 3.14 / DSP 2.16  May 9, 2009
>
> * SPEAKER PROTECTION: If you’re set up for stereo speakers
> (CONFIG:SPKRS = 2), but insert a mono speaker plug, the right
> speaker output will be shorted to ground. This can cause excess
> current drain if you turn volume up to high levels. The K3 now
> detects this condition, automatically turning off the right
> channel (and briefly flashing "SPRKS=1"). (It would be better,
> of course, to use a stereo plug if you set SPKRS to 2, rather
> than wait for the firmware to detect the mono plug.)

... [show rest of quote]

---

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[pd0psb]

Clear Wayne, tnx.

I consider this a "don't try this at home" ;-)
Smart solution btw!

73'
Paul
PD0PSB

wayne burdick wrote

Hi Paul,

Just plugging in a mono plug by itself is not detectable in firmware.
The protection kicks in as a result of a brief spike in AF amp current
drain. To observe this you need a mono plug, SPKRS=2, and moderate to
high volume setting with a strong signal in the passband. This will
eventually cause the AF amp chip to draw 1/2 to 1 amp of current on
peaks, which firmware can easily spot.

I wouldn't suggest forcing this condition intentionally. We tested it
on several K3s, and we know it works. But it is intended as a safety
feature, not as a substitute for using a stereo speaker plug when SPKRS
is set to 2.

73,
Wayne
N6KR

On May 21, 2009, at 7:54 AM, pd0psb wrote:

>
> Anybody else tested this?
> I can't get speaker protection to work.
> Or does it only work with higher AF levels?
>
> 73'
> Paul
> PD0PSB
>
>
> MCU 3.14 / DSP 2.16  May 9, 2009
>
> * SPEAKER PROTECTION: If you’re set up for stereo speakers
> (CONFIG:SPKRS = 2), but insert a mono speaker plug, the right
> speaker output will be shorted to ground. This can cause excess
> current drain if you turn volume up to high levels. The K3 now
> detects this condition, automatically turning off the right
> channel (and briefly flashing "SPRKS=1"). (It would be better,
> of course, to use a stereo plug if you set SPKRS to 2, rather
> than wait for the firmware to detect the mono plug.)


---

http://www.elecraft.com

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... [show rest of quote]

... [show rest of quote]