Re: [Elecraft] Wish List

[Don Wilhelm]

Jim,

Yes, switching between digital and SSB modes on the KX3 is troublesome 
from the requirements imposed by the single Mic input jack and the 
single headphone (SPKR) jack.


For convience in switching between Data modes and speech modes, you will 
have to go with the K3 which has independent per mode selections.  The 
KX3 was not designed to have that same capability.
With the KX3, some form of external switching would be required to 
switch from microphone input to your digital inputs.  Attenuators in the 
PC soundcard to KX3 audio input might be requited so you do not have to 
contend with the differences in audio levels.


Such switching was not a part of the KX3 design, and you may wnat to 
upgrade to a K3 for your station instead of the KX3.


73,
Don W3FPR

On 12/12/2019 8:02 PM, Jim Jones wrote:

Okay, I'm a 2nd owner of a KX3 and I'm still reading and trying
To figure out all the commands and menu options. Yikes. Anyway,
I run a lot of digital, mainly on Mars circuits. What I'm finding
Is that I have to swap plugs for the mic and speaker each time I
Have to go to voice and then back again for digital. What would
Be nice to add to a wish list is to put a 6-pin mini-din connector
On the KX3. This would have a pin for Mic input, Ground, Key line,
And a line out audio level fixed level.

This would allow the end user to take his computer/KX3/Signalink
Out into the field and run digital fairly easy. This is just a
Wish for something in the future. By the way, great rig.
73
Jim

Jim Jones - N9DIX
Waverly, TN

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Re: [Elecraft] K3: DSP Bandwidth Limit

[Don Wilhelm]

Jim,

It is important to realize that the K3 bandwith is equal to the audio
bandwidth.  The K3 reports the audio bandwidth.

A K3 with a 6 kHz filter is limited to a maximum of 3 kHz audio because 
an AM signal is double sideband and the IF bandwidth for the AM signal 
must be twice the audio frequency of the filter.


So an IF filter of 6 kHz is required to obtain an audio frequency of 3 kHz.

The DSP frequency band is in the audio spectrum while the IF filter is 
in the RF spectrum.  There is a 2:1 relationhsip in the bandwidth. For 
an IF bandwidth (the filter bandwidth) of 6 KHz, the expected audio 
bandwidth (shown by the K3S audio bandwidth) is limited to 3 kHz.


Yes, the audio bandwidth displayed can go up to 4000 Hz, but little will 
be heard above 3000 Hz with a 6 kHz filter usd for AM.


73,
Don W3FPR

Fn 12/13/2019 8:58 AM, Jim Stoneback via Elecraft wrote:

Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in 
AM mode?  I have the 13 kHz roofing filter installed.

73,

Jim K4AXF
K3 #4936
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Re: [Elecraft] Reaching across the chronological divide

[David Gilbert]

This of course is a discussion that isn't likely to die before we do, 
but I really don't think that any significant portion of today's youth 
will ever look at amateur radio like we do.  I wish that weren't the 
case, but reality bites.


1.  The major lure of amateur radio for most of us was the ability to 
freely talk to faraway places.  Young people today can do that with FM 
quality and yet often they don't ... they text or chat via message 
groups and forums.


2.  Communicating today is license free, and while even now with today's 
lesser requirements getting an amateur radio license is maybe not a 
roadblock it's a nuisance to have to study for something that you don't 
otherwise care about.


3.  Effectively communicating today is far cheaper hardware-wise than 
for amateur radio, especially for long distances.


4.  Communicating today is independent of time of day or position in the 
sunspot cycle.


5.  A basic competency in amateur radio was once considered a stepping 
stone to a technical career.  That is hardly the case today.  In fact, I 
remember one manager of a test department in another company telling me 
he tried to avoid hiring hams because they talked about it too much on 
the job.


One thing I do believe has carryover appeal is the spirit of 
competition.  Humans in general always seem keen to compete at almost 
anything ... from eating hot dogs to running to vicariously watching 
football to quilting to barbeque.  Young people today have video games 
that provide a FAR richer competitive environment than any ham radio 
contest (I do both, by the way), and I've always thought that one way to 
drum up interest in ham radio is to develop a contest format that has 
similar elements.  Ham radio contests are essentially endurance events 
that involve independent action throughout the contest with the 
comparison occurring at the end, and often weeks or months later.  Video 
games require different but otherwise comparable proficiency (both 
mental and physical) but involve real time counter moves to any 
opponent.  The closest we hams come to offsetting somebody we view as 
competition is to steal their frequency or QRM them.  I'm not at all 
suggesting that we do any such thing, but a contest where we could take 
some action that subtracted from somebody else's score is the kind of 
thing I'm talking about.  And no, I don't know how to do that either, 
but it illustrates what I'm talking about.


It's not any surprise to me that contesting is one of the few surviving 
ham radio activities with high participation.  Even ragchewing has 
practically died out, and if anyone disputes that take a look at how 
much time you spend each week reading email reflectors versus being on 
the air (other than in a contest).


I'm not really sure what Wayne was referring to here, and maybe he 
implied that same thing that I'm saying, but we aren't going to bring 
young folks into the hobby by trying to convince them that the same 
things that appealed to us 40 years ago are going to appeal to them.  
This isn't a communication or publicity problem.  In spite of the 
comments from hams I've seen over the years, most young people pretty 
much know the general framework of ham radio and they've simply rejected 
it in favor of other things.  There are always a few exceptions, of 
course, but I'd bet $100 that the bulk of those young people who pop up 
online or in QST as shining examples of young blood in the hobby are 
nowhere to be found two years later.


If for any reason we want young folks to embrace the hobby, the hobby 
itself is going to have to adapt.  That most of us seem unable to 
understand that fact is probably another facet of the problem ... we're 
old and inflexible (in both appearance and in fact), which doesn't help 
the image of the hobby one wit.  The pictures from Dayton or any other 
hamfest have the same appeal as if they were taken at a Lawrence Welk 
concert.


I guarantee that those of us who are still above ground five years from 
now will be having this same discussion, and it won't be because we 
weren't persuasive enough.


73,
Dave   AB7E


On 12/13/2019 7:24 PM, Wayne Burdick wrote:

Hams of a certain age, including yours truly (first licensed in 1971) recall 
their excitement on joining the hobby: there was the promise of contact with 
faraway places, collection of vivid QSL cards, mastery of esoteric equipment, 
synchrony with the rhythms of Morse code, and the crafting of antennas to 
harness action at a distance.

Most of us still feel that spark, occasionally--some on a daily 
basis--experiencing the wonder all over again.

While the accoutrements and equipage of youth have evolved over the decades, 
their DNA has not. Somewhere, nestled between the genetic codes for half-pipe 
snowboarding, Instagram, Juul, and ambient house, there's a dormant sequence 
for the Radio Art waiting to be stirred.

Is there a Battle Royale for ham radio? A tactical RPG?

What is our 

[Elecraft] Reaching across the chronological divide

[Wayne Burdick]

Hams of a certain age, including yours truly (first licensed in 1971) recall 
their excitement on joining the hobby: there was the promise of contact with 
faraway places, collection of vivid QSL cards, mastery of esoteric equipment, 
synchrony with the rhythms of Morse code, and the crafting of antennas to 
harness action at a distance.

Most of us still feel that spark, occasionally--some on a daily 
basis--experiencing the wonder all over again. 

While the accoutrements and equipage of youth have evolved over the decades, 
their DNA has not. Somewhere, nestled between the genetic codes for half-pipe 
snowboarding, Instagram, Juul, and ambient house, there's a dormant sequence 
for the Radio Art waiting to be stirred.

Is there a Battle Royale for ham radio? A tactical RPG?

What is our sorcerer's stone? Our rap?

Will Gen-Z or Gen-Alpha tickle the ionosphere, and if so...why?

To hand our batons across the chronological divide, we'll need empathetic, 
open-ended inquiry.

73,
Wayne
N6KR

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Re: [Elecraft] K3 & K3s Parts

[Dave Cole]

Spoken like a true tech!  :)

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 12/13/19 12:21 PM, hawley, charles j jr wrote:

Generally...whatever you stock in replacement parts will never be needed. These 
devices know what’s on the shelf. The part that device breaks will be the least 
expected part.

Chuck Jack Hawley
KE9UW

Sent from my iPhone, cjack


On Dec 13, 2019, at 12:09 PM, "g...@gmx.net"  wrote:

Very true. I just tried to get every important missing option and the upgrades.
I'm asking myself it it makes sense to replace the front panel, as it seems to 
be impossible to repair or clean the soft knobs. Or am I missing something?


Am 13.12.2019 um 18:28 schrieb Bob McGraw K4TAX:
Having been down this path with another company and having to plan for 
end-of-life support for products of that company, I would caution that hoarding 
parts, sucks up and will rapidly deplete any inventory planned.  Although I 
understand the desire to keep your radio operational, without parts at the 
service location then radios can’t be repaired.

Personally I would prefer to have the parts at the service location as opposed 
to them sitting in some unknown hams desk drawer.  Those in the desk drawer 
won’t likely do anyone any good.

Bob, K4TAX


Sent from my iPhone


On Dec 13, 2019, at 10:24 AM, Doug Hensley  wrote:

Scott has a great point.  With radio models changing & out-dating as they do,
please recommend, if you can, what K3 (and particularly what K3s)parts would
be good to have for either the future or the future owner.

Only Elecraft would know what parts are either failing or dwindling in supply
and they may not want to let that information out.

Thank you,

Doug W5JV


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of K9MA
Sent: 12 December, 2019 15:44
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Parts

I'm thinking it might be a good idea to stock up on K3 parts I might need in
the future, when they may not be available. Two likely candidates are the
main VFO encoder and the AF/RF gain pots. Any other suggestions?

73,

Scott K9MA

--
Scott  K9MA

k...@sdellington.us

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[Elecraft] Test

[Ian Kahn, NV4C]

Trying to get an old, no-longer-monitored email unsubscribed, and the 
correct one subscribed. Testing my efforts.


Thanks and 73,

Ian, NV4C

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Re: [Elecraft] K3 & K3s Parts

[Bob McGraw K4TAX]

Good advice 

Bob, K4TAX


Sent from my iPhone

> On Dec 13, 2019, at 2:35 PM, hawley, charles j jr  
> wrote:
> 
> Generally...whatever you stock in replacement parts will never be needed. 
> These devices know what’s on the shelf. The part that device breaks will be 
> the least expected part.
> 
> Chuck Jack Hawley 
> KE9UW
> 
> Sent from my iPhone, cjack 
> 
>> On Dec 13, 2019, at 12:09 PM, "g...@gmx.net"  wrote:
>> 
>> Very true. I just tried to get every important missing option and the 
>> upgrades.
>> I'm asking myself it it makes sense to replace the front panel, as it seems 
>> to be impossible to repair or clean the soft knobs. Or am I missing 
>> something?
>> 
 Am 13.12.2019 um 18:28 schrieb Bob McGraw K4TAX:
>>> Having been down this path with another company and having to plan for 
>>> end-of-life support for products of that company, I would caution that 
>>> hoarding parts, sucks up and will rapidly deplete any inventory planned.  
>>> Although I understand the desire to keep your radio operational, without 
>>> parts at the service location then radios can’t be repaired.
>>> 
>>> Personally I would prefer to have the parts at the service location as 
>>> opposed to them sitting in some unknown hams desk drawer.  Those in the 
>>> desk drawer won’t likely do anyone any good.
>>> 
>>> Bob, K4TAX
>>> 
>>> 
>>> Sent from my iPhone
>>> 
 On Dec 13, 2019, at 10:24 AM, Doug Hensley  wrote:
 
 Scott has a great point.  With radio models changing & out-dating as they 
 do,
 please recommend, if you can, what K3 (and particularly what K3s)parts 
 would
 be good to have for either the future or the future owner.
 
 Only Elecraft would know what parts are either failing or dwindling in 
 supply
 and they may not want to let that information out.
 
 Thank you,
 
 Doug W5JV
 
 
 -Original Message-
 From: elecraft-boun...@mailman.qth.net  
 On
 Behalf Of K9MA
 Sent: 12 December, 2019 15:44
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] K3 Parts
 
 I'm thinking it might be a good idea to stock up on K3 parts I might need 
 in
 the future, when they may not be available. Two likely candidates are the
 main VFO encoder and the AF/RF gain pots. Any other suggestions?
 
 73,
 
 Scott K9MA
 
 --
 Scott  K9MA
 
 k...@sdellington.us
 
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 This list hosted by: http://www.qsl.net
 Please help support this email list: http://www.qsl.net/donate.html
 Message delivered to rmcg...@blomand.net
 
>>> 
>>> __
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>> 
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Re: [Elecraft] K3: DSP Bandwidth Limit

[Fred Jensen]

OK, I think I read something into Joe's post that wasn't really there, 
that's how I thought it worked and I I think Joe was referring to the 
DSB BW at the 15 kHz 2nd IF.  Enjoy the GC, we stayed in a cabin maybe 
50 meters from the edge ... awesome!


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 12/13/2019 12:33 PM, Lyle Johnson wrote:

Fred,

The audio CODECs in the K3 have a 12 kHz sample rate.  This puts the maximum 
audio bandwidth at 6 kHz.  Practical limits of DSP filtering in the context of 
the K3 implementation limit audio to 4.5 kHz or so.

Aliasing around the 12 kHz sample rate of the CODECs required that “brick wall” 
low pass filter as well as additional analog filters after the audio DACs to 
eliminate those aliasing artifacts.

73 ,

Lyle KK7P (at the Grand Canyon)


Sent from my iPhone


On Dec 13, 2019, at 11:24 AM, Fred Jensen  wrote:

Could you explain a little more?

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County



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Re: [Elecraft] K3: DSP Bandwidth Limit

[Bill Weaver]

 
 
Joe, I think the confusion might come in with the typo ->   A 5 KHz *audio* 
bandwidth would be equivalent to a 10 Hz RF (IF)
 
Should be ->   A 5 KHz *audio* bandwidth would be equivalent to a 10 KHz RF (IF)
 

 
73,
 
Bill WE5P
 

 
 
 
 

 
 
 
 
 
>  
> On Dec 13, 2019 at 15:31, Joe Subich, W4TVwrote:
>  
>  
>  On 2019-12-13 1:22 PM, Fred Jensen wrote:  >  Could you explain a little 
> more? What's to explain? 
>  
 
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Re: [Elecraft] K3: DSP Bandwidth Limit

[Walter Underwood]

> On Dec 13, 2019, at 12:30 PM, Joe Subich, W4TV  wrote:
> 
> A 5 KHz *audio* bandwidth would be equivalent to a 10 Hz RF (IF)
> bandwidth. 


I expect you mean a 10 kHz RF bandwidth, not 10 Hz.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

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Re: [Elecraft] K3: DSP Bandwidth Limit

[Lyle Johnson]

Fred,

The audio CODECs in the K3 have a 12 kHz sample rate.  This puts the maximum 
audio bandwidth at 6 kHz.  Practical limits of DSP filtering in the context of 
the K3 implementation limit audio to 4.5 kHz or so.

Aliasing around the 12 kHz sample rate of the CODECs required that “brick wall” 
low pass filter as well as additional analog filters after the audio DACs to 
eliminate those aliasing artifacts.

73 ,

Lyle KK7P (at the Grand Canyon)


Sent from my iPhone

> On Dec 13, 2019, at 11:24 AM, Fred Jensen  wrote:
> 
> Could you explain a little more?
> 
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 12/13/2019 6:19 AM, Joe Subich, W4TV wrote:
>> Remember, the DSP display is audio.  5 KHz represents 10 Hz at
>> RF (IF).
> 
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Re: [Elecraft] K3: DSP Bandwidth Limit

[Joe Subich, W4TV]

On 2019-12-13 1:22 PM, Fred Jensen wrote:
> Could you explain a little more?

What's to explain?  AM is a double sideband signal - equal width
either side of the carrier with each sideband carrying the same
audio information but inverted in frequency.

A 5 KHz *audio* bandwidth would be equivalent to a 10 Hz RF (IF)
bandwidth.  In fact, the K3/K3S processes DSP at both "IF" (right
after the analog to digital conversion) and again at "AF" (just
before the digital to analog conversion).  For AM, the IF bandwidth
is twice the AF bandwidth ... for SYNC AM, LSB, USB, CW, DATA the
IF bandwidth and AF bandwidth are essentially the same.

73,

   ... Joe, W4TV


On 2019-12-13 1:22 PM, Fred Jensen wrote:

Could you explain a little more?

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 12/13/2019 6:19 AM, Joe Subich, W4TV wrote:

Remember, the DSP display is audio.  5 KHz represents 10 Hz at
RF (IF).




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Re: [Elecraft] K3 & K3s Parts

[hawley, charles j jr]

Generally...whatever you stock in replacement parts will never be needed. These 
devices know what’s on the shelf. The part that device breaks will be the least 
expected part.

Chuck Jack Hawley 
KE9UW

Sent from my iPhone, cjack 

> On Dec 13, 2019, at 12:09 PM, "g...@gmx.net"  wrote:
> 
> Very true. I just tried to get every important missing option and the 
> upgrades.
> I'm asking myself it it makes sense to replace the front panel, as it seems 
> to be impossible to repair or clean the soft knobs. Or am I missing something?
> 
>> Am 13.12.2019 um 18:28 schrieb Bob McGraw K4TAX:
>> Having been down this path with another company and having to plan for 
>> end-of-life support for products of that company, I would caution that 
>> hoarding parts, sucks up and will rapidly deplete any inventory planned.  
>> Although I understand the desire to keep your radio operational, without 
>> parts at the service location then radios can’t be repaired.
>> 
>> Personally I would prefer to have the parts at the service location as 
>> opposed to them sitting in some unknown hams desk drawer.  Those in the desk 
>> drawer won’t likely do anyone any good.
>> 
>> Bob, K4TAX
>> 
>> 
>> Sent from my iPhone
>> 
>>> On Dec 13, 2019, at 10:24 AM, Doug Hensley  wrote:
>>> 
>>> Scott has a great point.  With radio models changing & out-dating as they 
>>> do,
>>> please recommend, if you can, what K3 (and particularly what K3s)parts would
>>> be good to have for either the future or the future owner.
>>> 
>>> Only Elecraft would know what parts are either failing or dwindling in 
>>> supply
>>> and they may not want to let that information out.
>>> 
>>> Thank you,
>>> 
>>> Doug W5JV
>>> 
>>> 
>>> -Original Message-
>>> From: elecraft-boun...@mailman.qth.net  On
>>> Behalf Of K9MA
>>> Sent: 12 December, 2019 15:44
>>> To: elecraft@mailman.qth.net
>>> Subject: [Elecraft] K3 Parts
>>> 
>>> I'm thinking it might be a good idea to stock up on K3 parts I might need in
>>> the future, when they may not be available. Two likely candidates are the
>>> main VFO encoder and the AF/RF gain pots. Any other suggestions?
>>> 
>>> 73,
>>> 
>>> Scott K9MA
>>> 
>>> --
>>> Scott  K9MA
>>> 
>>> k...@sdellington.us
>>> 
>>> __
>>> 
>>> 
>>> 
>>> __
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Re: [Elecraft] K3: DSP Bandwidth Limit

[Fred Jensen]

Could you explain a little more?

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 12/13/2019 6:19 AM, Joe Subich, W4TV wrote:

Remember, the DSP display is audio.  5 KHz represents 10 Hz at
RF (IF).


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Re: [Elecraft] K3 & K3s Parts

[gt-i]

Very true. I just tried to get every important missing option and the 
upgrades.
I'm asking myself it it makes sense to replace the front panel, as it 
seems to be impossible to repair or clean the soft knobs. Or am I 
missing something?


Am 13.12.2019 um 18:28 schrieb Bob McGraw K4TAX:

Having been down this path with another company and having to plan for 
end-of-life support for products of that company, I would caution that hoarding 
parts, sucks up and will rapidly deplete any inventory planned.  Although I 
understand the desire to keep your radio operational, without parts at the 
service location then radios can’t be repaired.

Personally I would prefer to have the parts at the service location as opposed 
to them sitting in some unknown hams desk drawer.  Those in the desk drawer 
won’t likely do anyone any good.

Bob, K4TAX


Sent from my iPhone


On Dec 13, 2019, at 10:24 AM, Doug Hensley  wrote:

Scott has a great point.  With radio models changing & out-dating as they do,
please recommend, if you can, what K3 (and particularly what K3s)parts would
be good to have for either the future or the future owner.

Only Elecraft would know what parts are either failing or dwindling in supply
and they may not want to let that information out.

Thank you,

Doug W5JV


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of K9MA
Sent: 12 December, 2019 15:44
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Parts

I'm thinking it might be a good idea to stock up on K3 parts I might need in
the future, when they may not be available. Two likely candidates are the
main VFO encoder and the AF/RF gain pots. Any other suggestions?

73,

Scott K9MA

--
Scott  K9MA

k...@sdellington.us

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Re: [Elecraft] K3 Sideplate for K144XV

[gt-i]

Jim and all,
My K144XV is now alive. So thanks for your great help, also thanks to 
elecraft support who helped with a drawing. The old side plate also 
missed the blank space, which I spotted on the scans of Jim.
Lucky me, the transverter was also equipped with the REFLOCK board, so I 
guess that was a great deal.

73 Gernot DF5RF

PS: If anybody in Europe is interested in buying used Elecraft gear, I 
can recommend OZ6MWE (http://www.mwe.dk/index-filer/Page556.htm). I've 
bought there two times without any hassle and at a fair price.


Am 12.12.2019 um 22:05 schrieb g...@gmx.net:

Hi Jim,
yes, perfect! That's a brilliant Idea!
Looking forward to your scan,
73 Gernot, DF5RF

Am 12.12.2019 um 20:58 schrieb Jim Rhodes:

I happen to have the side panel off of my K3 right now. Would it help
if I scanned it into a jpeg file and sent it to you?


On Thu, Dec 12, 2019 at 1:44 PM mailto:g...@gmx.net>>
wrote:

    Hi,
    I just bought a used K144XV. My K3 side plate does not have the 3
    holes
    for the holding screws.
    Does anybody has the layout of these holes available, so at least I
    could drill them by myself? I guess have no other choices.
    Thanks,
    73 Gernot DF5RF

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Re: [Elecraft] K3 & K3s Parts

[Bob McGraw K4TAX]

Having been down this path with another company and having to plan for 
end-of-life support for products of that company, I would caution that hoarding 
parts, sucks up and will rapidly deplete any inventory planned.  Although I 
understand the desire to keep your radio operational, without parts at the 
service location then radios can’t be repaired. 

Personally I would prefer to have the parts at the service location as opposed 
to them sitting in some unknown hams desk drawer.  Those in the desk drawer 
won’t likely do anyone any good. 

Bob, K4TAX


Sent from my iPhone

> On Dec 13, 2019, at 10:24 AM, Doug Hensley  wrote:
> 
> Scott has a great point.  With radio models changing & out-dating as they do,
> please recommend, if you can, what K3 (and particularly what K3s)parts would
> be good to have for either the future or the future owner.
> 
> Only Elecraft would know what parts are either failing or dwindling in supply
> and they may not want to let that information out.
> 
> Thank you,
> 
> Doug W5JV
> 
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net  On
> Behalf Of K9MA
> Sent: 12 December, 2019 15:44
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] K3 Parts
> 
> I'm thinking it might be a good idea to stock up on K3 parts I might need in
> the future, when they may not be available. Two likely candidates are the
> main VFO encoder and the AF/RF gain pots. Any other suggestions?
> 
> 73,
> 
> Scott K9MA
> 
> --
> Scott  K9MA
> 
> k...@sdellington.us
> 
> __
> 
> 
> 
> __
> Elecraft mailing list
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> Message delivered to rmcg...@blomand.net 
> 


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[Elecraft] K3 & K3s Parts

[Doug Hensley]

Scott has a great point.  With radio models changing & out-dating as they do,
please recommend, if you can, what K3 (and particularly what K3s)parts would
be good to have for either the future or the future owner.

Only Elecraft would know what parts are either failing or dwindling in supply
and they may not want to let that information out.

Thank you,

Doug W5JV


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of K9MA
Sent: 12 December, 2019 15:44
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Parts

I'm thinking it might be a good idea to stock up on K3 parts I might need in
the future, when they may not be available. Two likely candidates are the
main VFO encoder and the AF/RF gain pots. Any other suggestions?

73,

Scott K9MA

--
Scott  K9MA

k...@sdellington.us

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Re: [Elecraft] T1

[Michael Walker]

I have one as well that I think I can part with.

Mike va3mw


On Fri, Dec 13, 2019 at 9:48 AM Ian Kahn  wrote:

> Terry,
>
> I have one for sale. Let's connect off-line.
>
> Ian, NV4C
>
> On Fri, Dec 13, 2019, 9:39 AM Terry Basom  wrote:
>
> > Looking for a T1 tuner..
> >
> > Thanks
> > Terry
> > VE3IQL
> > __
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Re: [Elecraft] T1

[Ian Kahn]

Terry,

I have one for sale. Let's connect off-line.

Ian, NV4C

On Fri, Dec 13, 2019, 9:39 AM Terry Basom  wrote:

> Looking for a T1 tuner..
>
> Thanks
> Terry
> VE3IQL
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[Elecraft] T1

[Terry Basom]

Looking for a T1 tuner..

Thanks
Terry
VE3IQL
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Re: [Elecraft] K3: DSP Bandwidth Limit

[Joe Subich, W4TV]

On 2019-12-13 8:58 AM, Jim Stoneback via Elecraft wrote:
Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in AM mode?  


No.  It would be ineffective since the audio chain has a
4500 Hz "brickwall" (sharp cutoff) lowpass filter limiting
the audio response (to remove DAC artifacts/aliasing).


I have the 13 kHz roofing filter installed.


Remember, the DSP display is audio.  5 KHz represents 10 Hz at
RF (IF).


73,

   ... Joe, W4TV

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[Elecraft] K3: DSP Bandwidth Limit

[Jim Stoneback via Elecraft]

Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in 
AM mode?  I have the 13 kHz roofing filter installed.

73,

Jim K4AXF
K3 #4936
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[Elecraft] K3 Parts For Sale

[ockmrzr]

I recently upgraded of my two K3's.  As such, I have a few left over parts
for sale.  

 

Perhaps some of you own a K3; maybe you're interested in having some spares
on hand.

 

4x - KSYN3 synthesizer module

1x - KXV3A Transverter Interface

1x - KIO3A (3 board set) I/O interface

 

If interested, let me know via direct email.

 

"Let's Make a Deal"

 

73 de Bruce, N7TY

Yuma, AZ

www.qsl.net/n7ty  

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[Elecraft] Keep up your GOOD work

[GS]

Never had a problem with Your Products I am using!  ( K1,  K3 and spares  )

experienced quick response when asking for spares. Hints came quickly.

Even firmware issues were solved quickly  -  THANK YOU   and have nice 
holidays



Gerd  OE3GSA  73


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