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K3 Future Factory Hardware Updates

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Roy Morris-6

K3 Future Factory Hardware Updates

I would like to know if is the intention of Elecraft to incorporate the K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE REDUCTION mod in future PC boards. If so, I plan to install these mods in my K3s. Roy Morris W4WFB
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raroth7

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

Eric Swartz - WA6HHQ, Elecraft wrote:

> Hi Roy,
>
> As of today, we have made the following enhancements to all K3s leaving
> the factory:
>
> K3 VFO TUNING NOISE REDUCTION (requires f/w 3.25 or later)
> K3 AUTOMATIC FRONT END PROTECTION (1 wire mod)
> K3 IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc) (1 resistor value
> change)
>
> Based on feedback form those that have tried the preliminary release of
> these changes, we are comfortable with adding them as standard K3 features.
>
> Please note that the last item, the IF Output Buffer Gain mMod, is
> slightly different than the similar N8LP mod some have been performing
> on their K3s independently. We determined that only one value needs to
> change to implement the gain increase for the IF output. We are changing
> R8 from 1K ohms to 13K ohms. (Those that have made the N8LP mod may
> also leave it as is.)
>
> Also, we are releasing new beta f/w today, MCU 3.27/DSP 2.24. This is
> already available on the web page at:
>
> http://www.elecraft.com/K3/k3_software.htm
>
> This release includes:
>
> *ADDITIONAL NOISE REDUCTION (NR) IMPROVEMENTS.
> *AUTONOTCH depth improved.
> *SHIFT=.01 FIXED WITH LOW SIDETONE PITCH (300 Hz).
> *VFOs NOW TUNE DOWN TO 490 kHz.
>
> We never sleep in Aptos! :-)
>
> 73, Eric WA6HHQ
>
> Roy Morris wrote:
>> I would like to know if is the intention of Elecraft to incorporate the K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE REDUCTION mod in future PC boards. If so, I plan to install these mods in my K3s. Roy Morris W4WFB
>>
> ______________________________________________________________
> 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
>

Yup...my Auto-Notch works now!! Good goin' guys!!

I've been told by family members that I tend to gush, but honestly,
where else can you find the level of customer service that we have with
Elecraft? Truly terrific!!

--
73,
Dick ka1oz
Middleborough, MA

Radio: Elecraft K3/100(Kit) SN 859
Antenna: Titan-DX
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Brett Howard

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In reply to this post by Roy Morris-6

I've not had a chance to spend a lot of time with the new firmware but
here are my initial impressions.

The NR seems to be really great in CW (but I liked it a lot in 3.25 as
well). It seems to fade into the new settings a bit quicker and not
need to be turned off and back on again. Although I find myself being
impatient and still doing that at times. I did however go up and try
it out on some SSB stuff and it seems to really round out and muffle
some of the SSB stuff. I found the signals easier to copy with the NR
off than on. However the NR in CW is quite impressive at pulling out
some of the weak ones. Its not doing such a good job that I'd not be
able to make copy with out it but for me who is a bit green on copying
its nice to be able to take many signals and make them sound near
perfect.

One detriment is that when setting the radio to PB CTRL = 0.1 before
it seemed like there was a lot more low frequency response and that
the bottom two bands in the EQ finally did something for a change. Is
there something that one can do to get that audio back?

Testing the auto notch in a labratory type environment I inject an S9
signal and then notch it I get 43dB of attenuation. Inject a 1uV
signal and I get 10dB of attenuation. Both make the signal generator
sound as if its been turned off.

~Brett

On Tue, Aug 25, 2009 at 10:52 AM, Eric Swartz - WA6HHQ,
Elecraft<[hidden email]> wrote:

Steve Ellington

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

The low frequency audio is gone now. Yes it was certainly nice while it
lasted.
Have to revert to 3.25 if you want LF audio.
Steve
N4LQ
[hidden email]
----- Original Message -----
From: "Brett Howard" <[hidden email]>
Cc: <[hidden email]>
Sent: Tuesday, August 25, 2009 9:00 PM
Subject: Re: [Elecraft] K3 Future Factory Hardware Updates;+ New beta f/w
release 3.27

I've not had a chance to spend a lot of time with the new firmware but
here are my initial impressions.

The NR seems to be really great in CW (but I liked it a lot in 3.25 as
well). It seems to fade into the new settings a bit quicker and not
need to be turned off and back on again. Although I find myself being
impatient and still doing that at times. I did however go up and try
it out on some SSB stuff and it seems to really round out and muffle
some of the SSB stuff. I found the signals easier to copy with the NR
off than on. However the NR in CW is quite impressive at pulling out
some of the weak ones. Its not doing such a good job that I'd not be
able to make copy with out it but for me who is a bit green on copying
its nice to be able to take many signals and make them sound near
perfect.

One detriment is that when setting the radio to PB CTRL = 0.1 before
it seemed like there was a lot more low frequency response and that
the bottom two bands in the EQ finally did something for a change. Is
there something that one can do to get that audio back?

Testing the auto notch in a labratory type environment I inject an S9
signal and then notch it I get 43dB of attenuation. Inject a 1uV
signal and I get 10dB of attenuation. Both make the signal generator
sound as if its been turned off.

~Brett

On Tue, Aug 25, 2009 at 10:52 AM, Eric Swartz - WA6HHQ,
Elecraft<[hidden email]> wrote:

> Hi Roy,
>
> As of today, we have made the following enhancements to all K3s leaving
> the factory:
>
> K3 VFO TUNING NOISE REDUCTION (requires f/w 3.25 or later)
> K3 AUTOMATIC FRONT END PROTECTION (1 wire mod)
> K3 IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc) (1 resistor value
> change)
>
> Based on feedback form those that have tried the preliminary release of
> these changes, we are comfortable with adding them as standard K3
> features.
>
> Please note that the last item, the IF Output Buffer Gain mMod, is
> slightly different than the similar N8LP mod some have been performing
> on their K3s independently. We determined that only one value needs to
> change to implement the gain increase for the IF output. We are changing
> R8 from 1K ohms to 13K ohms. (Those that have made the N8LP mod may
> also leave it as is.)
>
> Also, we are releasing new beta f/w today, MCU 3.27/DSP 2.24. This is
> already available on the web page at:
>
> http://www.elecraft.com/K3/k3_software.htm
>
> This release includes:
>
> *ADDITIONAL NOISE REDUCTION (NR) IMPROVEMENTS.
> *AUTONOTCH depth improved.
> *SHIFT=.01 FIXED WITH LOW SIDETONE PITCH (300 Hz).
> *VFOs NOW TUNE DOWN TO 490 kHz.
>
> We never sleep in Aptos! :-)
>
> 73, Eric WA6HHQ
>
> Roy Morris wrote:
>> I would like to know if is the intention of Elecraft to incorporate the
>> K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE
>> REDUCTION mod in future PC boards. If so, I plan to install these mods in
>> my K3s. Roy Morris W4WFB
>>
> ______________________________________________________________
> 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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Brett Howard

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

I figured I'd mention it as we now know its possible and I'm hoping to
get this extended frequency response to continue on "and hopefully come
back"...

~Brett

On Tue, 2009-08-25 at 21:16 -0400, Steve Ellington wrote:

> The low frequency audio is gone now. Yes it was certainly nice while it
> lasted.
> Have to revert to 3.25 if you want LF audio.
> Steve
> N4LQ
> [hidden email]
> ----- Original Message -----
> From: "Brett Howard" <[hidden email]>
> Cc: <[hidden email]>
> Sent: Tuesday, August 25, 2009 9:00 PM
> Subject: Re: [Elecraft] K3 Future Factory Hardware Updates;+ New beta f/w
> release 3.27
>
>
> I've not had a chance to spend a lot of time with the new firmware but
> here are my initial impressions.
>
> The NR seems to be really great in CW (but I liked it a lot in 3.25 as
> well). It seems to fade into the new settings a bit quicker and not
> need to be turned off and back on again. Although I find myself being
> impatient and still doing that at times. I did however go up and try
> it out on some SSB stuff and it seems to really round out and muffle
> some of the SSB stuff. I found the signals easier to copy with the NR
> off than on. However the NR in CW is quite impressive at pulling out
> some of the weak ones. Its not doing such a good job that I'd not be
> able to make copy with out it but for me who is a bit green on copying
> its nice to be able to take many signals and make them sound near
> perfect.
>
> One detriment is that when setting the radio to PB CTRL = 0.1 before
> it seemed like there was a lot more low frequency response and that
> the bottom two bands in the EQ finally did something for a change. Is
> there something that one can do to get that audio back?
>
> Testing the auto notch in a labratory type environment I inject an S9
> signal and then notch it I get 43dB of attenuation. Inject a 1uV
> signal and I get 10dB of attenuation. Both make the signal generator
> sound as if its been turned off.
>
> ~Brett
>
> On Tue, Aug 25, 2009 at 10:52 AM, Eric Swartz - WA6HHQ,
> Elecraft<[hidden email]> wrote:
> > Hi Roy,
> >
> > As of today, we have made the following enhancements to all K3s leaving
> > the factory:
> >
> > K3 VFO TUNING NOISE REDUCTION (requires f/w 3.25 or later)
> > K3 AUTOMATIC FRONT END PROTECTION (1 wire mod)
> > K3 IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc) (1 resistor value
> > change)
> >
> > Based on feedback form those that have tried the preliminary release of
> > these changes, we are comfortable with adding them as standard K3
> > features.
> >
> > Please note that the last item, the IF Output Buffer Gain mMod, is
> > slightly different than the similar N8LP mod some have been performing
> > on their K3s independently. We determined that only one value needs to
> > change to implement the gain increase for the IF output. We are changing
> > R8 from 1K ohms to 13K ohms. (Those that have made the N8LP mod may
> > also leave it as is.)
> >
> > Also, we are releasing new beta f/w today, MCU 3.27/DSP 2.24. This is
> > already available on the web page at:
> >
> > http://www.elecraft.com/K3/k3_software.htm
> >
> > This release includes:
> >
> > *ADDITIONAL NOISE REDUCTION (NR) IMPROVEMENTS.
> > *AUTONOTCH depth improved.
> > *SHIFT=.01 FIXED WITH LOW SIDETONE PITCH (300 Hz).
> > *VFOs NOW TUNE DOWN TO 490 kHz.
> >
> > We never sleep in Aptos! :-)
> >
> > 73, Eric WA6HHQ
> >
> > Roy Morris wrote:
> >> I would like to know if is the intention of Elecraft to incorporate the
> >> K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE
> >> REDUCTION mod in future PC boards. If so, I plan to install these mods in
> >> my K3s. Roy Morris W4WFB
> >>
> > ______________________________________________________________
> > 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
>

list1

FW 3.25 Comment

Only on version FW 3.25 but used the NR for the very first time tonight
where it was better than not using any NR. Used 3-3 with USB at about 4.0
MHz for a MARS net. Got rid of much of the static pops from the lightning
strikes. So I am looking forward to trying FW 3.27.

Thanks Elecraft,
Steve, W2MY, AAR6CX

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AD4C2009

New Beta 3.27

In reply to this post by Brett Howard

Only thing I will say is that finally the NR is working as it should be after installing this new beta version 3.27
The autonotch is super fast,I tuned a 40db over S9 broadcast station on 40M and could hear a station with S7/S8 at just 2Khz away,even getting closer at 1.5 Khz still could hear the weaker one,that notch works excellent now.
NR on CW is outstanding,I was able to pull stations of about 449 signals from the band noise and make them sound crystal clear like a 599 station,impressive performance on CW
SSB,the NR even not been so effective as on CW it did work great as well,using F1-2 as settings I can pull weak stations and they will sound very clean with just lightly hollowness,audio is droped little bid only.
In general I will give the new 3.27 in a scale from 0 to 10 a perfect 9.5
Good job again Elecraft,obviously you guys are not sleeping as been stated.

AD4C
K3 and K2

"The difference between genius and stupidity is that genius has its limits".. -- Albert Einstein

--- On Wed, 8/26/09, Brett Howard <[hidden email]> wrote:

From: Brett Howard <[hidden email]>
Subject: Re: [Elecraft] K3 Future Factory Hardware Updates; + New beta f/w release 3.27
To:
Cc: [hidden email]
Date: Wednesday, August 26, 2009, 1:00 AM

I've not had a chance to spend a lot of time with the new firmware but
here are my initial impressions.

The NR seems to be really great in CW (but I liked it a lot in 3.25 as
well). It seems to fade into the new settings a bit quicker and not
need to be turned off and back on again. Although I find myself being
impatient and still doing that at times. I did however go up and try
it out on some SSB stuff and it seems to really round out and muffle
some of the SSB stuff. I found the signals easier to copy with the NR
off than on. However the NR in CW is quite impressive at pulling out
some of the weak ones. Its not doing such a good job that I'd not be
able to make copy with out it but for me who is a bit green on copying
its nice to be able to take many signals and make them sound near
perfect.

One detriment is that when setting the radio to PB CTRL = 0.1 before
it seemed like there was a lot more low frequency response and that
the bottom two bands in the EQ finally did something for a change. Is
there something that one can do to get that audio back?

Testing the auto notch in a labratory type environment I inject an S9
signal and then notch it I get 43dB of attenuation. Inject a 1uV
signal and I get 10dB of attenuation. Both make the signal generator
sound as if its been turned off.

~Brett

On Tue, Aug 25, 2009 at 10:52 AM, Eric Swartz - WA6HHQ,
Elecraft<[hidden email]> wrote:

Eric Swartz - WA6HHQ

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

Administrator

In reply to this post by Brett Howard

It will reappear in a future release. Just not as a bug in another
feature ;-)

73, Eric

Brett Howard wrote:

> I figured I'd mention it as we now know its possible and I'm hoping to
> get this extended frequency response to continue on "and hopefully come
> back"...
>
> ~Brett
>
> On Tue, 2009-08-25 at 21:16 -0400, Steve Ellington wrote:
>> The low frequency audio is gone now. Yes it was certainly nice while it
>> lasted.
>> Have to revert to 3.25 if you want LF audio.
>> Steve
>> N4LQ
>>
>> _..._

Bob Garrett

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In my not so humble opinion, version 3.27 works extremely well for both CW
and SSB. I'd suggest before you start drawing conclusions from one posting,
try it yourself and then you can make your own decision as to how affective
or unaffective the newest efforts from our dedicated Elecraft team work for
your particular operating style.
73, Bob K3UL

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chen dave

Re: FW 3.25 Comment

In reply to this post by list1

Same here. On 22-08-2009 I worked about 200 EU stations on 20m,
when I use NR(any setting), I found it is very hard to understand the
signals.

73 de BA4RF/David

On Wed, Aug 26, 2009 at 9:50 AM, list1 <[hidden email]> wrote:

> Only on version FW 3.25 but used the NR for the very first time tonight
> where it was better than not using any NR. Used 3-3 with USB at about 4.0
> MHz for a MARS net. Got rid of much of the static pops from the lightning
> strikes. So I am looking forward to trying FW 3.27.
>
> Thanks Elecraft,
> Steve, W2MY, AAR6CX
>
> ______________________________________________________________
> 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
>

Brett Howard

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In reply to this post by Brett Howard

I'd felt that the SSB NR was a bit lacking in this latest version but
found that the echo was very difficult to copy through and when
listening to stronger stations however like I said I didn't get a
change to spend a lot of time behind it...

I just made a contact to Tasmania (he barely heard me but it worked).
Anyway I found that using AFX in conjunction with the NR makes the
echo quite pronounced.

Also when I was testing it before I was testing with a somewhat
stronger station and that seemed almost like it was clipping and
muffling the station. But when employing the feature with weaker
stations it seems to do a bit better job. I'm not so sure I'd try it
on the really weak ones. But cranking things down to about 1.6Khz
wide with an FC around 1.05 or soish (depending on the op's voice)
does a good job of cleaning up some noise... But it sure seems to
work a trick in the really aggressive settings for the weak CW
stations.

Just like any tool it has its places where it does a very good job and
it has its places where you're better off without it. I'm still very
happy with it as of yet in CW and greatly appreciate all of the hard
work that is going into this feature! Glad to know I'm not the only
one that never sleeps.. ;)

~Brett

On Tue, Aug 25, 2009 at 6:00 PM, Brett Howard<[hidden email]> wrote:

> I've not had a chance to spend a lot of time with the new firmware but
> here are my initial impressions.
>
> The NR seems to be really great in CW (but I liked it a lot in 3.25 as
> well). It seems to fade into the new settings a bit quicker and not
> need to be turned off and back on again. Although I find myself being
> impatient and still doing that at times. I did however go up and try
> it out on some SSB stuff and it seems to really round out and muffle
> some of the SSB stuff. I found the signals easier to copy with the NR
> off than on. However the NR in CW is quite impressive at pulling out
> some of the weak ones. Its not doing such a good job that I'd not be
> able to make copy with out it but for me who is a bit green on copying
> its nice to be able to take many signals and make them sound near
> perfect.
>
> One detriment is that when setting the radio to PB CTRL = 0.1 before
> it seemed like there was a lot more low frequency response and that
> the bottom two bands in the EQ finally did something for a change. Is
> there something that one can do to get that audio back?
>
> Testing the auto notch in a labratory type environment I inject an S9
> signal and then notch it I get 43dB of attenuation. Inject a 1uV
> signal and I get 10dB of attenuation. Both make the signal generator
> sound as if its been turned off.
>
> ~Brett
>
> On Tue, Aug 25, 2009 at 10:52 AM, Eric Swartz - WA6HHQ,
> Elecraft<[hidden email]> wrote:
>> Hi Roy,
>>
>> As of today, we have made the following enhancements to all K3s leaving
>> the factory:
>>
>> K3 VFO TUNING NOISE REDUCTION (requires f/w 3.25 or later)
>> K3 AUTOMATIC FRONT END PROTECTION (1 wire mod)
>> K3 IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc) (1 resistor value
>> change)
>>
>> Based on feedback form those that have tried the preliminary release of
>> these changes, we are comfortable with adding them as standard K3 features.
>>
>> Please note that the last item, the IF Output Buffer Gain mMod, is
>> slightly different than the similar N8LP mod some have been performing
>> on their K3s independently. We determined that only one value needs to
>> change to implement the gain increase for the IF output. We are changing
>> R8 from 1K ohms to 13K ohms. (Those that have made the N8LP mod may
>> also leave it as is.)
>>
>> Also, we are releasing new beta f/w today, MCU 3.27/DSP 2.24. This is
>> already available on the web page at:
>>
>> http://www.elecraft.com/K3/k3_software.htm
>>
>> This release includes:
>>
>> *ADDITIONAL NOISE REDUCTION (NR) IMPROVEMENTS.
>> *AUTONOTCH depth improved.
>> *SHIFT=.01 FIXED WITH LOW SIDETONE PITCH (300 Hz).
>> *VFOs NOW TUNE DOWN TO 490 kHz.
>>
>> We never sleep in Aptos! :-)
>>
>> 73, Eric WA6HHQ
>>
>> Roy Morris wrote:
>>> I would like to know if is the intention of Elecraft to incorporate the K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE REDUCTION mod in future PC boards. If so, I plan to install these mods in my K3s. Roy Morris W4WFB
>>>
>> ______________________________________________________________
>> 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
>>
>

Don Wilhelm-4

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In reply to this post by Bob Garrett

Bob,

Well said - This is the first time I have felt the NR works
satisfactorily on SSB. It actually makes SSB signals appear out of
nothingness as one tunes the band. In my tests, I felt that for SSB
operation the F1-x and F2-x settings worked best and allowed a weak
signal to be picked out of the noise. For me, the F3-x and F4-x
settings seemed not to help SSB stations that were down near the noise,
but the lighter settings worked great on weak signals.

Yes, there is a bit of 'hollowness' to SSB voices, and the effect is
magnified with AFX on, but that is not a problem in my opinion.

I am running with RX EQ flat.

73,
Don W3FPR

Bob Garrett wrote:
> In my not so humble opinion, version 3.27 works extremely well for both CW
> and SSB. I'd suggest before you start drawing conclusions from one posting,
> try it yourself and then you can make your own decision as to how affective
> or unaffective the newest efforts from our dedicated Elecraft team work for
> your particular operating style.
> 73, Bob K3UL
>
>
______________________________________________________________
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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Arie Kleingeld PA3A-2

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In reply to this post by Eric Swartz - WA6HHQ

Eric,

The low freq response is still there in 3.27 / 2.24.
The way I check this is the response of the RX EQ. There's a good
response if I change the EQ setting on 100Hz and 200Hz.
Love it.

73
Arie
PA3A
---------------

It will reappear in a future release. Just not as a bug in another
feature ;-)

73, Eric

------------
> I figured I'd mention it as we now know its possible and I'm hoping to

> get this extended frequency response to continue on "and hopefully
> come back"...
>

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Larry - K2GN

Re: K3 Future Factory Hardware Updates; + New beta f/w release 3.27

In reply to this post by Roy Morris-6

I just ordered the K3 VFO TUNING NOISE REDUCTION and I'll do the
AUTOMATIC FRONT END PROTECTION (1 wire mod)
when I get into the radio.
I can't find anything on the 3rd mod mentioned in Eric's announcement on
August 25th,
IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc).
Is there a modification sheet for it somewhere on the site?
I will be ordering a P3 down the line and I may as well do other mod now.

Thank you,
de K2GN/Larry
K3 - S/N 3278

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