Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Dave Hachadorian
To my ears, this AGC change is a MAJOR improvement!  It didn't
take any extensive testing to reach that conclusion.  The
difference is immediately obvious.

As mentioned previously, with low values of slope and high values
of threshold, loud signals "blank out" with the current firmware
release, so the most aggressive combinations can't be used now.
Threshold 15 and slope 0 seem to work pretty well though.  I am
listening to 20 meter cw now with two K3's.  Rig 1 has the new
firmware, with threshold 15 and slope 0.  Rig 2 has threshold 8
and slope 0 with the current mainstream firmware.

Rig 1 sounds MUCH cleaner, both on the loud W1AW code practice
signal, and on the 7O6T pileup.  The pileup is not too deep on
any one frequency, so it's not the ultimate test, but signals do
sound much cleaner on rig 1.

If more aggressive values of slope and threshold can be
accommodated without the blanking effect, the improvement will be
even greater.    Elecraft is definitely on the right track here.
Thanks for working on this issue!


Dave Hachadorian, K6LL
Yuma, Arizona


-----Original Message-----
From: Wayne Burdick
Sent: Sunday, May 06, 2012 4:06 PM
To: Elecraft Wayne Burdick - N6KR
Subject: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Hi all (everyone is BCC'd on this),

As I mentioned, we've made some improvements to the K3's DSP AGC.
No
hardware changes are being made this time. This is strictly a
firmware
change to the MCU and DSPs.

One change will benefit the AGC at all settings: elimination of
the
interpolation errors in the AGC onset curve. This by itself adds
some
clarity to signals.

The other change allows the AGC THR parameter to be set to a
higher
value -- up to 20. The original default (5) put the threshold for
AGC
onset to around S2 or S3, and the max was 8 (about S4-S5). A
setting
of about 11 now puts the threshold around S7, and the new max of
20
puts it around S8-S9. Any signals below the threshold should not
activate DSP AGC at all. (Hardware AGC is not affected by the
changes;
it still kicks in around S9+20 dB.)

Two interesting side-effects of raising the threshold: (1) noise
blanking may seem to be much more effective than before; (2) QSB
on
weak signals may be more noticeable.

**********
IMPORTANT:

Please set AGC SLP (slope) to something above 0, for now, as this
appears to cause problems.

Setting AGC THR above 8 will *temporarily disable* auto-notch and
noise reduction. The switches and NR level control will still
behave
the same, but they will have no effect unless you set the
threshold
back to 8 or lower. We may make the threshold per-mode in a later
release so that, for example, you could set a high threshold for
CW
but still have a threshold of 8 or lower for other modes,
allowing NR
and auto-notch to still work in this case.

The reason autonotch and NR must be disabled for high-threshold
AGC is
that the dynamic range of signals can be an order of magnitude
higher.
We'll be experimenting further to see if NR and autonotch can be
modified to still allow their use with high thresholds. But
generally
speaking, pileup conditions in CW (the principle target) don't
require
the use of NR, and autonotch doesn't apply to CW.
***********

Keep in mind that it may be difficult to reproduce the conditions
under which in-band IMD has been reported. Most operators have
claimed
it was caused by "dozens" (maybe even hundreds!) of signals in
the S5
or lower range, all practically on top of each other. This effect
has
gotten worse in recent years due to the prevalence of spotting.
Short
of actually heading for a DX QTH, you may not be able to
reproduce the
conditions accurately.

But it is true that some operators prefer a higher AGC threshold
in
general, while allowing AGC to remain turned on. You'll now have
that
capability with the K3. This has been touted as a difference in
favor
of some other radios. Not any more :)

The new firmware is attached. As with a beta release, you'll need
to
unzip (extract) the files and put them somewhere easily located,
usually on the desktop, then tell K3 Utility where to find it.
You
must load all of the new code, so use the "send all" option.

Make sure after loading that your MCU is at rev 4.50 and both DSP
and
AUX DSP at 2.74.

Please test the new code in a variety of conditions. If you have
two
K3s, please put the new firmware on one of them, set them both up
identically, and compare them by switching the antenna between
the two
radios.

Assuming it passes your own tests, feel free to pass it on to
anyone
who you think might benefit from it, including those planning
DXpeditions (or even *at* a DXpedition, if they're willing and
able to
try a new firmware load).

Also, by all means post your observations to the Elecraft
reflector
(or elsewhere). If all goes well, we can release this as beta
code
next week.

73,
Wayne
N6KR










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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

k6dgw
On 5/7/2012 1:56 PM, Dave Hachadorian wrote:
> To my ears, this AGC change is a MAJOR improvement!  It didn't take
> any extensive testing to reach that conclusion.  The difference is
> immediately obvious.

That's very good news.  Possibly a beta release this week or maybe next,
I hope.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Tony Estep
In reply to this post by Dave Hachadorian
On Mon, May 7, 2012 at 3:56 PM, Dave Hachadorian <[hidden email]> wrote:

> ....Thanks for working on this issue!
>
=========
This is a real-life example of a terrific attitude toward customer
satisfaction. When this issue was first raised, the company could have been
defensive and simply asserted that there was no problem -- those of us who
have been doing this for a while can easily think of nearly identical
situations wherein other ham manufacturers have done exactly that. Indeed,
there were comments on this reflector offhandedly dismissing the queries
about "signal mush." But not from the design team; they took it to heart
and dug through the problem with a serious desire to replicate it if
possible, and to figure out the source and attack it. And did it right in
the middle of the big production crunch with the KX3, and with no specific
financial payoff in mind. The payoff is in knowing that no stone has been
left unturned to make the K3 the best DX/contest machine it can be, and
that the hams who appreciate that will spread the word.

Tony KT0NY


--
http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Doug Turnbull
HI All,
     What do they say in the song, "No one does it better".   Thank you
Elecraft, this is why so many of us are rabidly happy about your product.
It helps to have hams running the company which engineers ham radio only.

                73 Doug EI2CN

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Tony Estep
Sent: 07 May 2012 22:42
To: Elecraft
Subject: Re: [Elecraft] K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

On Mon, May 7, 2012 at 3:56 PM, Dave Hachadorian <[hidden email]> wrote:

> ....Thanks for working on this issue!
>
=========
This is a real-life example of a terrific attitude toward customer
satisfaction. When this issue was first raised, the company could have been
defensive and simply asserted that there was no problem -- those of us who
have been doing this for a while can easily think of nearly identical
situations wherein other ham manufacturers have done exactly that. Indeed,
there were comments on this reflector offhandedly dismissing the queries
about "signal mush." But not from the design team; they took it to heart
and dug through the problem with a serious desire to replicate it if
possible, and to figure out the source and attack it. And did it right in
the middle of the big production crunch with the KX3, and with no specific
financial payoff in mind. The payoff is in knowing that no stone has been
left unturned to make the K3 the best DX/contest machine it can be, and
that the hams who appreciate that will spread the word.

Tony KT0NY


--
http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Rick WA6NHC
Now if we could convince ANY vehicle manufacturer to have the same attitude,
designers that are also mechanics (without the need for an MSEE)...  Maybe
we'd have a chance to work under the hood again like we can with Elecraft.

Rick wa6nhc :o)

-----Original Message-----
From: Doug Turnbull
It helps to have hams running the company which engineers ham radio only.

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

David F. Reed-2
In reply to this post by Dave Hachadorian
I cannot seem to locate where to download this; I can only see 4.48, no
Beta...

Clues for the clueless?

Thanks and 73 de Dave, W5SV

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

k6dgw
I think Wayne's post indicated it would be "released" as a beta in the
next week or so once the field test reports were in and they were
satisfied with it.  It sure sounds like a really good job on the AGC, I
guess patience is in order ... I know, hard for this list and these
products. :-)

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

On 5/7/2012 3:59 PM, David F. Reed wrote:
> I cannot seem to locate where to download this; I can only see 4.48, no
> Beta...
>
> Clues for the clueless?

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Cady, Fred
In reply to this post by David F. Reed-2
Hi Dave,
It's not beta yet. I don't know what they call it -- gamma???

Cheers and 73,
Fred
"The Elecraft K3: Design, Configuration, and Operation"
www.ke7x.com


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of David F. Reed
Sent: Monday, May 07, 2012 5:00 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

I cannot seem to locate where to download this; I can only see 4.48, no
Beta...

Clues for the clueless?

Thanks and 73 de Dave, W5SV

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

wayne burdick
Administrator
In reply to this post by k6dgw
I just talked to Lyle. Looks like by tomorrow we'll have a version of  
DSP code that allows NR and autonotch to be used at all threshold  
settings, and fixes the high-signal issue some had reported.

I'll send it out to everyone who got the last test version.

Wayne
N6KR


Fred Jensen wrote:

> I think Wayne's post indicated it would be "released" as a beta in the
> next week or so....


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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Kevin Stover
In reply to this post by Cady, Fred
We in the IT business call it "Alpha" and you don't send it to anybody
who can't figure out how to fix a broken system. In this case it's
pretty easy, reset the radio and reload a backed up FW and config.

I would call what Wayne is doing this time Beta and when it is released
on the website for general testing, Beta 2.


On 05/07/2012 06:50 PM, Cady, Fred wrote:
> Hi Dave,
> It's not beta yet. I don't know what they call it -- gamma???
>
> Cheers and 73,
> Fred
> "The Elecraft K3: Design, Configuration, and Operation"
> www.ke7x.com


--
R. Kevin Stover
AC0H

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

w0mu
In reply to this post by wayne burdick
Great!

I have sent the SW to about 5 people.

Mike W0MU

W0MU-1 CC Cluster w0mu.net


On 5/7/2012 5:59 PM, Wayne Burdick wrote:

> I just talked to Lyle. Looks like by tomorrow we'll have a version of
> DSP code that allows NR and autonotch to be used at all threshold
> settings, and fixes the high-signal issue some had reported.
>
> I'll send it out to everyone who got the last test version.
>
> Wayne
> N6KR
>
>
> Fred Jensen wrote:
>
>> I think Wayne's post indicated it would be "released" as a beta in the
>> next week or so....
>
> ______________________________________________________________
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Bill Frantz
In reply to this post by Tony Estep
As a retired software developer, what amazes me is the way Wayne
and company are performing their beta test. No NDA. It looks
like almost anyone can sign up. Problems and future intentions
are discussed in a public forum. I am blown away that a company
would act this way. It is very refreshing.

Cheers - Bill, AE6JV

On 5/7/12 at 14:41, [hidden email] (Tony Estep) wrote:

>This is a real-life example of a terrific attitude toward customer
>satisfaction. When this issue was first raised, the company could have been
>defensive and simply asserted that there was no problem -- those of us who
>have been doing this for a while can easily think of nearly identical
>situations wherein other ham manufacturers have done exactly that. Indeed,
>there were comments on this reflector offhandedly dismissing the queries
>about "signal mush." But not from the design team; they took it to heart
>and dug through the problem with a serious desire to replicate it if
>possible, and to figure out the source and attack it. And did it right in
>the middle of the big production crunch with the KX3, and with no specific
>financial payoff in mind. The payoff is in knowing that no stone has been
>left unturned to make the K3 the best DX/contest machine it can be, and
>that the hams who appreciate that will spread the word.
-------------------------------------------------------------------------
Bill Frantz        | The first thing you need when  | Periwinkle
(408)356-8506      | using a perimeter defense is a | 16345
Englewood Ave
www.pwpconsult.com | perimeter.                     | Los Gatos,
CA 95032

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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Guy, K2AV
In reply to this post by Cady, Fred
Beta Beta.

On Mon, May 7, 2012 at 7:50 PM, Cady, Fred <[hidden email]> wrote:

> Hi Dave,
> It's not beta yet. I don't know what they call it -- gamma???
>
> Cheers and 73,
> Fred
> "The Elecraft K3: Design, Configuration, and Operation"
> www.ke7x.com
>
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of David F. Reed
> Sent: Monday, May 07, 2012 5:00 PM
> To: Elecraft Reflector
> Subject: Re: [Elecraft] K3 AGC improvements (MCU rev 4.50 / DSP 2.74)
>
> I cannot seem to locate where to download this; I can only see 4.48, no
> Beta...
>
> Clues for the clueless?
>
> Thanks and 73 de Dave, W5SV
>
> ______________________________________________________________
> 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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>
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>
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Don Wilhelm-4
In reply to this post by Bill Frantz
Bill,

True, true -- but the situation with the KX3 is different than what has
transpired with previous products.
Previously, the conversations of the Field Testers have been on a
private forum.  While that is still true with the KX3, there is a lot
more information that is "in the open".  My guess is that it is due to
the KX3 Yahoo Group, where a lot of questions are posed.  Wayne and Eric
have been willing to respond to a number of those questions, and I
believe that has set the stage for the present level of 'openness'.

 From my standpoint, "Thank You other Elecraft customers" for being
patient while the process of final development, Field Test, and
production ramp-up are taking place.  There are a few that expect
immediate results to problems, but for the most part, customers have
been very accepting of the inevitable delays in (optimistic) plans, and
the resulting turmoil that each delay can create inside Elecraft.

Delays in the original plan (SWAG) are inevitable.  It is impossible to
attempt to predict the schedule of another company ( read 'supplier')
until you have commitments for price, quantity and schedule in place,
and that is difficult to accomplish unless you have real numbers that
the supplier can quote on.  That is only one of the possible things that
can happen.

I have observed that the KX3 plan and schedule has been more open and
transparent than most previous products.  Whether that is good or bad
depends on the customer acceptance of supplier delays, field test
reports that result in tweaks to the product, or problems in training
new people to enable ramp up to full production status.

So far "all is well", but the future remains to be seen.

73,
Don W3FPR

On 5/7/2012 10:25 PM, Bill Frantz wrote:

> As a retired software developer, what amazes me is the way Wayne
> and company are performing their beta test. No NDA. It looks
> like almost anyone can sign up. Problems and future intentions
> are discussed in a public forum. I am blown away that a company
> would act this way. It is very refreshing.
>
> Cheers - Bill, AE6JV
>
> On 5/7/12 at 14:41, [hidden email] (Tony Estep) wrote:
>
>> This is a real-life example of a terrific attitude toward customer
>> satisfaction. When this issue was first raised, the company could have been
>> defensive and simply asserted that there was no problem -- those of us who
>> have been doing this for a while can easily think of nearly identical
>> situations wherein other ham manufacturers have done exactly that. Indeed,
>> there were comments on this reflector offhandedly dismissing the queries
>> about "signal mush." But not from the design team; they took it to heart
>> and dug through the problem with a serious desire to replicate it if
>> possible, and to figure out the source and attack it. And did it right in
>> the middle of the big production crunch with the KX3, and with no specific
>> financial payoff in mind. The payoff is in knowing that no stone has been
>> left unturned to make the K3 the best DX/contest machine it can be, and
>> that the hams who appreciate that will spread the word.
> -------------------------------------------------------------------------
> Bill Frantz        | The first thing you need when  | Periwinkle
> (408)356-8506      | using a perimeter defense is a | 16345
> Englewood Ave
> www.pwpconsult.com | perimeter.                     | Los Gatos,
> CA 95032
>
> ______________________________________________________________
> 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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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Keith Heimbold
In reply to this post by Dave Hachadorian
Making a great rig even better. Totally stoked to play with the radio with the new firmware.

> To my ears, this AGC change is a MAJOR improvement!  It didn't
> take any extensive testing to reach that conclusion.  The
> difference is immediately obvious.
>
> As mentioned previously, with low values of slope and high values
> of threshold, loud signals "blank out" with the current firmware
> release, so the most aggressive combinations can't be used now.
> Threshold 15 and slope 0 seem to work pretty well though.  I am
> listening to 20 meter cw now with two K3's.  Rig 1 has the new
> firmware, with threshold 15 and slope 0.  Rig 2 has threshold 8
> and slope 0 with the current mainstream firmware.
>
> Rig 1 sounds MUCH cleaner, both on the loud W1AW code practice
> signal, and on the 7O6T pileup.  The pileup is not too deep on
> any one frequency, so it's not the ultimate test, but signals do
> sound much cleaner on rig 1.
>
> If more aggressive values of slope and threshold can be
> accommodated without the blanking effect, the improvement will be
> even greater.    Elecraft is definitely on the right track here.
> Thanks for working on this issue!
>
>
> Dave Hachadorian, K6LL
> Yuma, Arizona
>
>
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Don Wilhelm-4
In reply to this post by Don Wilhelm-4
Sorry, I was responding to the wrong post.

While the content is valid for what it is, it is in response to a post
on the KX3 Yahoo Group, and has nothing to do with the K3 AGC.

73,
Don W3FPR

On 5/7/2012 10:53 PM, Don Wilhelm wrote:

> Bill,
>
> True, true -- but the situation with the KX3 is different than what has
> transpired with previous products.
> Previously, the conversations of the Field Testers have been on a
> private forum.  While that is still true with the KX3, there is a lot
> more information that is "in the open".  My guess is that it is due to
> the KX3 Yahoo Group, where a lot of questions are posed.  Wayne and Eric
> have been willing to respond to a number of those questions, and I
> believe that has set the stage for the present level of 'openness'.
>
>   From my standpoint, "Thank You other Elecraft customers" for being
> patient while the process of final development, Field Test, and
> production ramp-up are taking place.  There are a few that expect
> immediate results to problems, but for the most part, customers have
> been very accepting of the inevitable delays in (optimistic) plans, and
> the resulting turmoil that each delay can create inside Elecraft.
>
> Delays in the original plan (SWAG) are inevitable.  It is impossible to
> attempt to predict the schedule of another company ( read 'supplier')
> until you have commitments for price, quantity and schedule in place,
> and that is difficult to accomplish unless you have real numbers that
> the supplier can quote on.  That is only one of the possible things that
> can happen.
>
> I have observed that the KX3 plan and schedule has been more open and
> transparent than most previous products.  Whether that is good or bad
> depends on the customer acceptance of supplier delays, field test
> reports that result in tweaks to the product, or problems in training
> new people to enable ramp up to full production status.
>
> So far "all is well", but the future remains to be seen.
>
> 73,
> Don W3FPR
>
> On 5/7/2012 10:25 PM, Bill Frantz wrote:
>> As a retired software developer, what amazes me is the way Wayne
>> and company are performing their beta test. No NDA. It looks
>> like almost anyone can sign up. Problems and future intentions
>> are discussed in a public forum. I am blown away that a company
>> would act this way. It is very refreshing.
>>
>> Cheers - Bill, AE6JV
>>
>> On 5/7/12 at 14:41, [hidden email] (Tony Estep) wrote:
>>
>>> This is a real-life example of a terrific attitude toward customer
>>> satisfaction. When this issue was first raised, the company could have been
>>> defensive and simply asserted that there was no problem -- those of us who
>>> have been doing this for a while can easily think of nearly identical
>>> situations wherein other ham manufacturers have done exactly that. Indeed,
>>> there were comments on this reflector offhandedly dismissing the queries
>>> about "signal mush." But not from the design team; they took it to heart
>>> and dug through the problem with a serious desire to replicate it if
>>> possible, and to figure out the source and attack it. And did it right in
>>> the middle of the big production crunch with the KX3, and with no specific
>>> financial payoff in mind. The payoff is in knowing that no stone has been
>>> left unturned to make the K3 the best DX/contest machine it can be, and
>>> that the hams who appreciate that will spread the word.
>> -------------------------------------------------------------------------
>> Bill Frantz        | The first thing you need when  | Periwinkle
>> (408)356-8506      | using a perimeter defense is a | 16345
>> Englewood Ave
>> www.pwpconsult.com | perimeter.                     | Los Gatos,
>> CA 95032
>>
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

W2RU - Bud Hippisley
In reply to this post by Guy, K2AV

On May 7, 2012, at 10:42 PM, Guy Olinger K2AV wrote:

> Beta Beta.

Meaning, I presume, it's a "beta" Beta than the first Beta.

Well, I guess we "beta" that to death....

Bud, W2RU
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

David Christ
In reply to this post by Guy, K2AV
Software developers call it alpha.  Greek alphabet ya know -- alpha,
beta, gamma...  I guess gamma must be the production release.

David K0LUM

At 10:42 PM -0400 5/7/12, Guy Olinger K2AV wrote:

>Beta Beta.
>
>On Mon, May 7, 2012 at 7:50 PM, Cady, Fred <[hidden email]> wrote:
>
>>  Hi Dave,
>>  It's not beta yet. I don't know what they call it -- gamma???
>>
>>  Cheers and 73,
>>  Fred
>>  "The Elecraft K3: Design, Configuration, and Operation"
>  > www.ke7x.com
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Gary Gregory
In reply to this post by Guy, K2AV
*Without the radiation I hope..:-)

gary
*
On 8 May 2012 13:18, David Christ <[hidden email]> wrote:

> Software developers call it alpha.  Greek alphabet ya know -- alpha,
> beta, gamma...  I guess gamma must be the production release.
>
> David K0LUM
>
> At 10:42 PM -0400 5/7/12, Guy Olinger K2AV wrote:
> >Beta Beta.
> >
> >On Mon, May 7, 2012 at 7:50 PM, Cady, Fred <[hidden email]> wrote:
> >
> >>  Hi Dave,
> >>  It's not beta yet. I don't know what they call it -- gamma???
> >>
> >>  Cheers and 73,
> >>  Fred
> >>  "The Elecraft K3: Design, Configuration, and Operation"
> >  > www.ke7x.com
> ______________________________________________________________
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--
Gary
VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!
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Re: K3 AGC improvements (MCU rev 4.50 / DSP 2.74)

Bill Frantz
In reply to this post by Don Wilhelm-4
Not to worry. Your comments are a fine description of why in
exchange for openness on the part of the vendor, the customers
(we) need to exhibit patients when the inevitable things go
wrong and things take longer than everyone hoped.

Cheers - Bill, AE6JV

On 5/7/12 at 19:58, [hidden email] (Don Wilhelm) wrote:

>Sorry, I was responding to the wrong post.

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