Re: [Elecraft] K1 extinct?

[lmarion]

The K1 is as remarkable as the K2, for its small rugged box, it’s a power 
house feature packed rig.


Gotta say its been in its case since I got the KX2. Remarkable rig.

Leroy AB7CE

-Original Message- 
From: Lane

Sent: Thursday, June 06, 2019 7:50 PM
To: Fred Jensen
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K1 extinct?

Wow, I am really sad about that. After the K2 and a few K3's, I guess
I waited too long thinking parts for the 4 band version would
eventually be found. :(

On Wed, Jun 5, 2019 at 8:58 PM Fred Jensen  wrote:


Yes, sad indeed, but predictable when the parts transmute to unobtainium
in shorter and shorter periods. Rich, NU6T, and I traded radios while
activating Leviathan Peak a number of years ago ... he ran my K2 for
awhile, I played with his K1.  I enjoyed my KX1 for all the years I had
it, it even went through the Panama Canal, but given the choice between
a KX1 and a K1, had I known, I've have gone for the K1.  Just an
incredible little, light, and fun QRP radio.

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

On 6/5/2019 6:33 PM, Byron Servies wrote:
> Yes, the K1 was sadly discontinued last year.
>
> 73, Byron N6NUL
>
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Re: [Elecraft] K1 extinct?

[Lane]

Wow, I am really sad about that. After the K2 and a few K3's, I guess
I waited too long thinking parts for the 4 band version would
eventually be found. :(

On Wed, Jun 5, 2019 at 8:58 PM Fred Jensen  wrote:
>
> Yes, sad indeed, but predictable when the parts transmute to unobtainium
> in shorter and shorter periods. Rich, NU6T, and I traded radios while
> activating Leviathan Peak a number of years ago ... he ran my K2 for
> awhile, I played with his K1.  I enjoyed my KX1 for all the years I had
> it, it even went through the Panama Canal, but given the choice between
> a KX1 and a K1, had I known, I've have gone for the K1.  Just an
> incredible little, light, and fun QRP radio.
>
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 6/5/2019 6:33 PM, Byron Servies wrote:
> > Yes, the K1 was sadly discontinued last year.
> >
> > 73, Byron N6NUL
> >
> >
>
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Re: [Elecraft] K4 Questions

[Wayne Burdick]

Definitely.

Wayne


> On Jun 6, 2019, at 2:59 PM, Doug Turnbull  wrote:
> 
> Would switching out the superhet front end allow a wider bandwidth for FT8
> in the event that narrower filters are used in the front end.
> 73 Doug EI2CN
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick
> Sent: 06 June 2019 21:54
> To: n...@windstream.net
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] K4 Questions
> 
> 
>> On Jun 6, 2019, at 2:28 PM,  
> wrote:
>> 
>> 1.   I understand that the K4HD will have a selectable feature that would
>> allow it to use either the direct sampling or the superhet front end.   If
> I
>> had a K4HD, why would I ever want to switch from the better superhet front
>> end to SDR - assuming I already own all the filters?
> 
> a)  Direct-sampling passband is flatter than the flattest crystal filter,
> with no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM,
> and possibly lower error rate in some digital modes, DV, etc.
> 
> b)  Direct sampling provides a wider bandwidth looking into the DSP,
> allowing for some advanced noise reduction capabilities including new NR,
> frequency-offset noise cancellation, etc. These features will be evolving
> over time.
> 
> c)  Turning off the superhet module will allow RX/TX operation near and at
> the IF (8.215 MHz). 
> 
> d)  Current drain will be lower with the HDR module turned off.
> 
> 
> 
>> 2.   Will there be a "K4 mini"?  I know I could operate remotely from a
>> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
>> paddle, etc. and having the panadapter screen in the mini would be a plus?
>> I use a K3 mini now but not with a P3.
> 
> Maybe. Someday. But I can't say for certain. Another possibility is a
> "K4/0", i.e. a K4 with only a front panel and host interface module, but in
> the same size chassis as a K4. Any K4, including a K4/0 or -mini, will be
> able to control another one.
> 
> 
> 
>> 3.   My primary station is built as a remote station in FL in partnership
>> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30
> GB
>> of data per month (without upcharge).  How data intensive is the K4 with
> the
>> panadapter in remote operation versus the K3S -- assuming it would be
>> controlled with a K4 mini or another K4 to get the panadapter feature??
> 
> No data on this yet. But you should be able to turn off the panadapter
> stream if/when you don't need it. Good idea.
> 
> 73,
> Wayne
> N6KR
> 
> 
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[Elecraft] Flex 6500 Trade?

[Kevin, N4TT]

Would anyone be interested in trading a late model K3S-F fully loaded for a
Flex 6500 + cash? This might be a fun opportunity to try a Flex and provide
some cash for that K4 purchase you're planning. I'm looking for a really
decked out K3S.

73,
Kev N4TT (formerly K4VD)
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Re: [Elecraft] K4 standing on Sherwood's RX list

[hbjr]

Speaking of the foreseeable future 

How long will the K3S be in production?  I'm a new owner as of last fall and 
hope pieces/parts and upgrades will continue for some time.

Hank
K4HYJ
K3s, P3, KX3

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Wayne Burdick
Sent: Thursday, June 6, 2019 1:59 PM
To: Grant Youngman 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] K4 standing on Sherwood's RX list

To quote the K4 product brochure:

Modular, upgradeable architecture

The K4 is our radio for the present and foreseeable future, extensible in both 
software and hardware.

Wayne
N6KR


> On Jun 6, 2019, at 10:53 AM, Grant Youngman  wrote:
> 
> Certainly agree.  And you never know — if the K4 has a life-cycle 
> similar to the K3/K3S, there may one day be new (affordable) plug-in 
> 24 bit A/D boards without having to buy.a whole new radio :-)
> 
> Grant NQ5T
> K3 #2091 KX3 #8342
> 
>> On Jun 6, 2019, at 1:47 PM, Scott Manthe  wrote:
>> 
>> Where a particular rig lands on "The List" isn't the only consideration. The 
>> K4 seems improved in a number of ways beyond its raw performance compared to 
>> the K3. It is a more modern design (direct sampling) with the ability to add 
>> extra features as needed. I'm not sure I'll be upgrading soon, but the 
>> package is a lot nicer and the interface improvements (band stacking, etc.) 
>> seem to be a real step forward.
>> 


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Re: [Elecraft] K4 Skimmer

[Wayne Burdick]

Yes. 

Wayne 



elecraft.com

> On Jun 6, 2019, at 3:20 PM, William Osborne  wrote:
> 
> Sorry, if this is already answered, but I cannot find it.  With the K4 is 
> there an  I/Q output to PC that will support CW Skimmer in wide band mode 
> (not audio)?  I am a 6600M user who is getting very interested in a better UI 
> and better CW!
> 
> Thanks Bill--K5ZQ
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[Elecraft] K4 Skimmer

[William Osborne]

Sorry, if this is already answered, but I cannot find it.  With the K4 is there 
an  I/Q output to PC that will support CW Skimmer in wide band mode (not 
audio)?  I am a 6600M user who is getting very interested in a better UI and 
better CW!

Thanks Bill--K5ZQ
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Re: [Elecraft] K4 Questions

[Doug Turnbull]

Would switching out the superhet front end allow a wider bandwidth for FT8
in the event that narrower filters are used in the front end.
 73 Doug EI2CN

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick
Sent: 06 June 2019 21:54
To: n...@windstream.net
Cc: Elecraft Reflector
Subject: Re: [Elecraft] K4 Questions


> On Jun 6, 2019, at 2:28 PM,  
wrote:
> 
> 1.I understand that the K4HD will have a selectable feature that would
> allow it to use either the direct sampling or the superhet front end.   If
I
> had a K4HD, why would I ever want to switch from the better superhet front
> end to SDR - assuming I already own all the filters?

a)  Direct-sampling passband is flatter than the flattest crystal filter,
with no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM,
and possibly lower error rate in some digital modes, DV, etc.

b)  Direct sampling provides a wider bandwidth looking into the DSP,
allowing for some advanced noise reduction capabilities including new NR,
frequency-offset noise cancellation, etc. These features will be evolving
over time.

c)  Turning off the superhet module will allow RX/TX operation near and at
the IF (8.215 MHz). 

d)  Current drain will be lower with the HDR module turned off.



> 2.Will there be a "K4 mini"?  I know I could operate remotely from a
> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
> paddle, etc. and having the panadapter screen in the mini would be a plus?
> I use a K3 mini now but not with a P3.

Maybe. Someday. But I can't say for certain. Another possibility is a
"K4/0", i.e. a K4 with only a front panel and host interface module, but in
the same size chassis as a K4. Any K4, including a K4/0 or -mini, will be
able to control another one.



> 3.My primary station is built as a remote station in FL in partnership
> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30
GB
> of data per month (without upcharge).  How data intensive is the K4 with
the
> panadapter in remote operation versus the K3S -- assuming it would be
> controlled with a K4 mini or another K4 to get the panadapter feature??

No data on this yet. But you should be able to turn off the panadapter
stream if/when you don't need it. Good idea.

73,
Wayne
N6KR


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Re: [Elecraft] K4 Questions

[Wayne Burdick]

> On Jun 6, 2019, at 2:28 PM,   wrote:
> 
> 1.I understand that the K4HD will have a selectable feature that would
> allow it to use either the direct sampling or the superhet front end.   If I
> had a K4HD, why would I ever want to switch from the better superhet front
> end to SDR - assuming I already own all the filters?

a)  Direct-sampling passband is flatter than the flattest crystal filter, with 
no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM, and 
possibly lower error rate in some digital modes, DV, etc.

b)  Direct sampling provides a wider bandwidth looking into the DSP, allowing 
for some advanced noise reduction capabilities including new NR, 
frequency-offset noise cancellation, etc. These features will be evolving over 
time.

c)  Turning off the superhet module will allow RX/TX operation near and at the 
IF (8.215 MHz). 

d)  Current drain will be lower with the HDR module turned off.



> 2.Will there be a "K4 mini"?  I know I could operate remotely from a
> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
> paddle, etc. and having the panadapter screen in the mini would be a plus?
> I use a K3 mini now but not with a P3.

Maybe. Someday. But I can't say for certain. Another possibility is a "K4/0", 
i.e. a K4 with only a front panel and host interface module, but in the same 
size chassis as a K4. Any K4, including a K4/0 or -mini, will be able to 
control another one.



> 3.My primary station is built as a remote station in FL in partnership
> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30 GB
> of data per month (without upcharge).  How data intensive is the K4 with the
> panadapter in remote operation versus the K3S -- assuming it would be
> controlled with a K4 mini or another K4 to get the panadapter feature??

No data on this yet. But you should be able to turn off the panadapter stream 
if/when you don't need it. Good idea.

73,
Wayne
N6KR


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[Elecraft] K4 Questions

[n4cc]

I have a couple questions regarding the K4 and K4HD - perhaps for
Wayne/Eric.

1.  I understand that the K4HD will have a selectable feature that would
allow it to use either the direct sampling or the superhet front end.   If I
had a K4HD, why would I ever want to switch from the better superhet front
end to SDR - assuming I already own all the filters?
2.  Will there be a "K4 mini"?  I know I could operate remotely from a
PC, etc. but would prefer the "real radio" feel with knobs, a plug in
paddle, etc. and having the panadapter screen in the mini would be a plus?
I use a K3 mini now but not with a P3.
3.  My primary station is built as a remote station in FL in partnership
with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30 GB
of data per month (without upcharge).  How data intensive is the K4 with the
panadapter in remote operation versus the K3S -- assuming it would be
controlled with a K4 mini or another K4 to get the panadapter feature??
(Forgive me if I'm not asking the question correctly, but I think you'll
understand my intent.)

Thanks.  73, Greg-N4CC

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Re: [Elecraft] New K1 Kit

[EricJ]

#1 would be true for thru-hole components. SMD components on a board in, 
say, a K3 were ramped up to about 225 deg C (435 deg F) over SEVERAL 
minutes. They're designed to withstand those temps. I don't know what 
the little heat gun I use puts out, but it doesn't burn paper which 
famously burns at Fahrenheit 451.


#2 It happens. When the solder goes molten, the surface tension moves 
parts around a little. Usually, it tends to position the part on the 
pads better than you can with tweezers on clean pads. Sometimes parts 
stand on end. Not a problem reheat it and push it down. Things don't 
always go perfectly on thru-hole either. Don Wilhelm helps people nearly 
every day with problems that turn out to be soldering related on K2's. 
They happen to everyone. Not a big problem.


BTW, notice that the solder paste on the IC is not carefully applied to 
each pad. Instead, the solder is applied ACROSS the pins in two lines. 
When it goes molten, the surface tension positions the parts and draws 
up any solder bridges onto the pads. Doesn't always work, but I've done 
some large ICs that way without solder bridges. When it happens, dab the 
connection with an iron and the bridge disappears. Safe and easy.


I understand not everyone has the eyesight or dexterity for it, and not 
for all sizes of SMDs. I avoid the very small stuff as do most hams who 
use SMD. Amateur radio is about new technical challenges whether 
building or operating. This is a very accessible and useful skill that 
can be acquired with inexpensive tools and a little practice.


Eric KE6US

On 6/6/2019 1:31 PM, Al Lorona wrote:

  1/ It always seemed to me that this method heats up the components much more 
than using a simple soldering iron, where you can pause between soldering each 
pad to allow heat to dissipate.

2/ Is that a capacitor standing up at about the 1:12 mark? Not good.

Al  W6LX

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Re: [Elecraft] New K1 Kit

[Gwen Patton]

I have serious issues with dexterity as a complication from a broken neck
in 2006. I've used sport lock picking as a form of occupational therapy. It
has really helped me keep and improve my hand and finger coordination. That
translates well to soldering capability. It's not perfect, but it's better
than it would be otherwise.

73,
Gwen, NG3P


On Thu, Jun 6, 2019, 4:07 PM demindor  wrote:

> So true...
>
> Eyesight and finger dexterity are the right tools as well. And, as it
> was so astutely stated - not everyone has the right tools. Let me add
> one thing - not everyone has the right tools in their peak condition.
>
> I used to dismiss this argument myself. Now I am ashamed that I did.
>
> (My apologies, the first time I sent it out I forgot to add the
> mail-list address.)
>
>
> On Thu, Jun 6, 2019 at 12:58 PM demindor  wrote:
> >
> > So true...
> >
> > Eyesight and finger dexterity are the right tools as well. And, as it
> > was so astutely stated - not everyone has the right tools. Let me add
> > one thing - not everyone has the right tools in their peak condition.
> >
> > I used to dismiss this argument myself. Now I am ashamed that I did.
> >
> >
> >
> > On Thu, Jun 6, 2019 at 12:43 PM Grant Youngman 
> wrote:
> > >
> > > That’s the key, of course. Most don’t have the right tools ...
> regardless, I think it would be a losing proposition since it would require
> basically re-engineering the radio ..
> > >
> > > Grant NQ5T
> > >
> > > Sent from my iPhone
> > >
> > > >
> > > > With the right tools building surface mount can be easier than thu
> hole.
> > > >
> > > > ---Paul AK1P
> > > >
> > > >> On 6/6/2019 3:18 PM, Grant Youngman wrote:
> > > >> There probably aren’t more than a handful  of folks who could
> actually build an SMD kit of any size without having to send it back to
> Elecraft to be built or to fix the mess.
> > > >>
> > > >> Grant NQ5T
> > > >> K3 #2091 KX3 #8342
> > > >>
> > > >>> On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:
> > > >>>
> > > >>> I have a decent soldering station, but for SMD beyond a few parts
> I don't
> > > >>> use a soldering iron. I use an i-Extruder pencil (a stepper-motor
> powered
> > > >>> syringe dispenser) to apply dots of solder paste to the pads, then
> tweezers
> > > >>> to pick-and-place the components. If it's a small area, I use my
> hot air
> > > >>> station to melt the paste and solder the parts. If it's a larger
> board, I
> > > >>> use a microcontroller-driven heating plate called a ReflowR to
> precisely
> > > >>> ramp up the heat, melt the paste, and cool it off so as to cause
> the least
> > > >>> thermal shock to the board or the components.
> > > >>>
> > > >> __
> > > >> Elecraft mailing list
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> > > >
> > > >
> > > > ---
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> > > > https://www.avg.com
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> > --
> > Alexey Kats (neko)
>
>
>
> --
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Re: [Elecraft] New K1 Kit

[Al Lorona]

 1/ It always seemed to me that this method heats up the components much more 
than using a simple soldering iron, where you can pause between soldering each 
pad to allow heat to dissipate.

2/ Is that a capacitor standing up at about the 1:12 mark? Not good.

Al  W6LX

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Re: [Elecraft] New K1 Kit

[demindor]

So true...

Eyesight and finger dexterity are the right tools as well. And, as it
was so astutely stated - not everyone has the right tools. Let me add
one thing - not everyone has the right tools in their peak condition.

I used to dismiss this argument myself. Now I am ashamed that I did.

(My apologies, the first time I sent it out I forgot to add the
mail-list address.)


On Thu, Jun 6, 2019 at 12:58 PM demindor  wrote:
>
> So true...
>
> Eyesight and finger dexterity are the right tools as well. And, as it
> was so astutely stated - not everyone has the right tools. Let me add
> one thing - not everyone has the right tools in their peak condition.
>
> I used to dismiss this argument myself. Now I am ashamed that I did.
>
>
>
> On Thu, Jun 6, 2019 at 12:43 PM Grant Youngman  wrote:
> >
> > That’s the key, of course. Most don’t have the right tools ... regardless, 
> > I think it would be a losing proposition since it would require basically 
> > re-engineering the radio ..
> >
> > Grant NQ5T
> >
> > Sent from my iPhone
> >
> > >
> > > With the right tools building surface mount can be easier than thu hole.
> > >
> > > ---Paul AK1P
> > >
> > >> On 6/6/2019 3:18 PM, Grant Youngman wrote:
> > >> There probably aren’t more than a handful  of folks who could actually 
> > >> build an SMD kit of any size without having to send it back to Elecraft 
> > >> to be built or to fix the mess.
> > >>
> > >> Grant NQ5T
> > >> K3 #2091 KX3 #8342
> > >>
> > >>> On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:
> > >>>
> > >>> I have a decent soldering station, but for SMD beyond a few parts I 
> > >>> don't
> > >>> use a soldering iron. I use an i-Extruder pencil (a stepper-motor 
> > >>> powered
> > >>> syringe dispenser) to apply dots of solder paste to the pads, then 
> > >>> tweezers
> > >>> to pick-and-place the components. If it's a small area, I use my hot air
> > >>> station to melt the paste and solder the parts. If it's a larger board, 
> > >>> I
> > >>> use a microcontroller-driven heating plate called a ReflowR to precisely
> > >>> ramp up the heat, melt the paste, and cool it off so as to cause the 
> > >>> least
> > >>> thermal shock to the board or the components.
> > >>>
> > >> __
> > >> Elecraft mailing list
> > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > >> Help: http://mailman.qth.net/mmfaq.htm
> > >> Post: mailto:Elecraft@mailman.qth.net
> > >>
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> > >> Please help support this email list: http://www.qsl.net/donate.html
> > >> Message delivered to ak1p.p...@gmail.com
> > >
> > >
> > > ---
> > > This email has been checked for viruses by AVG.
> > > https://www.avg.com
> > >
> > __
> > Elecraft mailing list
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>
>
>
> --
> Alexey Kats (neko)



-- 
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Re: [Elecraft] New K1 Kit

[Walter Underwood]

Heathkit has a kit to learn surface mount soldering. You build a code practice 
oscillator.

https://shop.heathkit.com/shop/product/heathrulestm-cpo-active-rulertm-surface-mount-solder-skills-learning-kit-er-1001-40

I’m tempted to get one. That would be a nice skill to pick up.

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

> On Jun 6, 2019, at 12:35 PM, Paul Maciel  wrote:
> 
> Hi Grant,
> 
> There certainly were a lot more than a handful that build the NorCal 2030 
> that had a surface parts count close if not more that the K1.
> 
> With the right tools building surface mount can be easier than thu hole.
> 
> ---Paul AK1P
> 
> On 6/6/2019 3:18 PM, Grant Youngman wrote:
>> There probably aren’t more than a handful  of folks who could actually build 
>> an SMD kit of any size without having to send it back to Elecraft to be 
>> built or to fix the mess.
>> 
>> Grant NQ5T
>> K3 #2091 KX3 #8342
>> 
>>> On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:
>>> 
>>> I have a decent soldering station, but for SMD beyond a few parts I don't
>>> use a soldering iron. I use an i-Extruder pencil (a stepper-motor powered
>>> syringe dispenser) to apply dots of solder paste to the pads, then tweezers
>>> to pick-and-place the components. If it's a small area, I use my hot air
>>> station to melt the paste and solder the parts. If it's a larger board, I
>>> use a microcontroller-driven heating plate called a ReflowR to precisely
>>> ramp up the heat, melt the paste, and cool it off so as to cause the least
>>> thermal shock to the board or the components.
>>> 
>> __
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> 
> 
> ---
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Re: [Elecraft] New K1 Kit

[Grant Youngman]

That’s the key, of course. Most don’t have the right tools ... regardless, I 
think it would be a losing proposition since it would require basically 
re-engineering the radio .. 

Grant NQ5T

Sent from my iPhone

> 
> With the right tools building surface mount can be easier than thu hole.
> 
> ---Paul AK1P
> 
>> On 6/6/2019 3:18 PM, Grant Youngman wrote:
>> There probably aren’t more than a handful  of folks who could actually build 
>> an SMD kit of any size without having to send it back to Elecraft to be 
>> built or to fix the mess.
>> 
>> Grant NQ5T
>> K3 #2091 KX3 #8342
>> 
>>> On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:
>>> 
>>> I have a decent soldering station, but for SMD beyond a few parts I don't
>>> use a soldering iron. I use an i-Extruder pencil (a stepper-motor powered
>>> syringe dispenser) to apply dots of solder paste to the pads, then tweezers
>>> to pick-and-place the components. If it's a small area, I use my hot air
>>> station to melt the paste and solder the parts. If it's a larger board, I
>>> use a microcontroller-driven heating plate called a ReflowR to precisely
>>> ramp up the heat, melt the paste, and cool it off so as to cause the least
>>> thermal shock to the board or the components.
>>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> 
> 
> ---
> This email has been checked for viruses by AVG.
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Re: [Elecraft] New K1 Kit

[Paul Maciel]

Hi Grant,

There certainly were a lot more than a handful that build the NorCal 
2030 that had a surface parts count close if not more that the K1.


With the right tools building surface mount can be easier than thu hole.

---Paul AK1P

On 6/6/2019 3:18 PM, Grant Youngman wrote:

There probably aren’t more than a handful  of folks who could actually build an 
SMD kit of any size without having to send it back to Elecraft to be built or 
to fix the mess.

Grant NQ5T
K3 #2091 KX3 #8342


On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:

I have a decent soldering station, but for SMD beyond a few parts I don't
use a soldering iron. I use an i-Extruder pencil (a stepper-motor powered
syringe dispenser) to apply dots of solder paste to the pads, then tweezers
to pick-and-place the components. If it's a small area, I use my hot air
station to melt the paste and solder the parts. If it's a larger board, I
use a microcontroller-driven heating plate called a ReflowR to precisely
ramp up the heat, melt the paste, and cool it off so as to cause the least
thermal shock to the board or the components.


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Re: [Elecraft] band decode/antenna switch controller

[Paul Gacek via Elecraft]

Joe

I have built the SM2WMW 2x6 and have a separate Arduino based decoder that 
supports SO2R configuration and works with N1MM.

Its not too difficult to design nor pull together the code to have it interface 
between N1MM and the 2x6 switch.

Details here….

https://nomadic.blog/2019/04/25/suitcase-dxpedition-station-automation-part-3-an-arduino-based-2x6-antenna-switch-controller/

Paul
W6PNG/M0SNA

> On Jun 6, 2019, at 8:11 PM, Joe Subich, W4TV  wrote:
> 
> 
> Note: the SM2WMV 6x2 switch (including "lockout" board") is
> essentially a knock off of the microHAM "Double Six Switch."
> 
> While it handles the antenna switching, it does not perform
> any band decoding.  That requires a separate decoder for each
> transmitter - from a simple BCD to 1 of N decoder (like the
> Unified Microsystems BCD-14) from the K3/K3s ACC jack to the
> more complex (and more capable) microHAM Station Master.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> On 2019-06-06 10:59 AM, Paul Gacek via Elecraft wrote:
>> David
>> Elecraft does and its the KCR2 kit.
>> See my blog for snaps etc
>> https://nomadic.blog/2019/01/07/suitcase-dxpedition-station-automation-step-1-the-elecraft-krc2/
>>  
>> 
>> Also, I have been down a similar path recently and you might some of my 
>> station automation posts of value (or not…).
>> You will need something like this.
>> https://nomadic.blog/2019/04/07/suitcase-dxpedition-2x6-antenna-switch/ 
>> 
>> Paul
>> W6PNg/M0SNA
>>> On Jun 6, 2019, at 3:52 PM, David F. Reed  wrote:
>>> 
>>> In planning my next station, I have not found one item I would like to
>>> add...
>>> 
>>> I wish to automatically select the correct antenna per band when using a K3
>>> or K4 with associated amplifier.  The objective is to select the
>>> appropriate 1 of 8 possibilities remotely,  I am currently doing this
>>> satisfactorily with a microHam StationMaster, but it has a lot more
>>> capabilities that I am not using, and for my next station, a simpler band
>>> decode, select remote antenna capability would be what I am looking for.
>>> 
>>> I thought Elecraft used to offer such a best, but I can't seem to find it.
>>> Suggestion?
>>> 
>>> Thanks and 73 de W5SV, Dave
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Re: [Elecraft] New K1 Kit

[Grant Youngman]

There probably aren’t more than a handful  of folks who could actually build an 
SMD kit of any size without having to send it back to Elecraft to be built or 
to fix the mess.

Grant NQ5T
K3 #2091 KX3 #8342

> On Jun 6, 2019, at 3:13 PM, Gwen Patton  wrote:
> 
> I have a decent soldering station, but for SMD beyond a few parts I don't
> use a soldering iron. I use an i-Extruder pencil (a stepper-motor powered
> syringe dispenser) to apply dots of solder paste to the pads, then tweezers
> to pick-and-place the components. If it's a small area, I use my hot air
> station to melt the paste and solder the parts. If it's a larger board, I
> use a microcontroller-driven heating plate called a ReflowR to precisely
> ramp up the heat, melt the paste, and cool it off so as to cause the least
> thermal shock to the board or the components.
> 

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Re: [Elecraft] band decode/antenna switch controller

[Larry (K8UT)]

If you'd like to tackle a DIY project, take a look at the FreqEZ Band 
Decoder project.


http://hamprojects.info/freqez/

Decode by: BCD output, Radio Frequency, or up to 250 Band Segments16 
SPDT relay outputsNo DIP switches, diodes, solder-bridges. All 
configuration is via software settingsFree software. You buy your 
hardware from your favorite sources
Watch a short (5 minutes) FreqEZ Overview video HERE 
 
(FreqEZ Overview_Video.MP4)


-larry (K8UT)

-- Original Message --
From: "Evert Bakker" 
To: "'elecraft Reflector'" 
Sent: 2019-06-06 11:32:02
Subject: Re: [Elecraft] band decode/antenna switch controller



A Q abt the KRC2:

Is it possible two switch to two different antennes within one band but
based on frequency span ?

Example:
3.500 - 3.650 Mc Antenna 1
3.650 - 3.800 Mc Antenne 2

73's, Evert PA2KW

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Re: [Elecraft] New K1 Kit

[Gwen Patton]

I have a decent soldering station, but for SMD beyond a few parts I don't
use a soldering iron. I use an i-Extruder pencil (a stepper-motor powered
syringe dispenser) to apply dots of solder paste to the pads, then tweezers
to pick-and-place the components. If it's a small area, I use my hot air
station to melt the paste and solder the parts. If it's a larger board, I
use a microcontroller-driven heating plate called a ReflowR to precisely
ramp up the heat, melt the paste, and cool it off so as to cause the least
thermal shock to the board or the components.

I'm not nearly as good at the latter as I am with simple thru-hole
components, or a few larger SMD components. 0603 and above, I do by hand if
there's just a few. Most people suggest a "tack one end then get the other"
approach, and while it works, I don't find it as efficient as I'd like. So
I use the same i-Extruder to apply dots of Amtech "tacky flux". I place the
components on the pads, held down by the tacky flux, then tack-solder one
end, then the other. If it needs it, I go back and flow enough solder to
make a good fillet, but frequently the tack makes a decent fillet with that
good flux. That's how I built a Zachtek WSPR beacon a few weeks back. It
had four low-pass filter stages, each with several surface mount
components. It was few enough that I didn't think it warranted the reflow
plate, though I did use the hot air pencil to clean up the fillets I did
with my soldering iron. Came out looking really good, and working well.

73,
Gwen, NG3P

On Thu, Jun 6, 2019 at 2:33 PM rich hurd WC3T  wrote:

> Dead bug construction ROCKS.
>
> On Thu, Jun 6, 2019 at 2:02 PM Wayne Burdick  wrote:
>
> > I miss the good ol' days, e.g. high school, when my quick 'n' dirty
> > transceiver projects were built by twisting component leads together. No
> > PCB, no chassis, nothing but raw parts. Hook up a 9 V battery and a
> > shamelessly untuned wire antenna. Work DX. Repeat.
> >
> > Wayne
> > N6KR
> >
> >
> > > On Jun 6, 2019, at 10:50 AM, James Doty  wrote:
> > >
> > > SMD soldering is actually pretty easy.  It does take a good quality
> > > soldering station to do it though.
> > >
> > > Yes, I need magnification when soldering surface mount components. :)
> > >
> > > __
> > > Elecraft mailing list
> > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> >
>
>
> --
> 72,
> Rich Hurd / WC3T / DMR: 3142737
> Northampton County RACES, EPA-ARRL Public Information Officer for Scouting
> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
> *FN20is*
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-- 

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
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Re: [Elecraft] band decode/antenna switch controller

[Joe Subich, W4TV]

Note: the SM2WMV 6x2 switch (including "lockout" board") is
essentially a knock off of the microHAM "Double Six Switch."

While it handles the antenna switching, it does not perform
any band decoding.  That requires a separate decoder for each
transmitter - from a simple BCD to 1 of N decoder (like the
Unified Microsystems BCD-14) from the K3/K3s ACC jack to the
more complex (and more capable) microHAM Station Master.

73,

   ... Joe, W4TV


On 2019-06-06 10:59 AM, Paul Gacek via Elecraft wrote:

David

Elecraft does and its the KCR2 kit.

See my blog for snaps etc

https://nomadic.blog/2019/01/07/suitcase-dxpedition-station-automation-step-1-the-elecraft-krc2/
 


Also, I have been down a similar path recently and you might some of my station 
automation posts of value (or not…).

You will need something like this.

https://nomadic.blog/2019/04/07/suitcase-dxpedition-2x6-antenna-switch/ 


Paul
W6PNg/M0SNA


On Jun 6, 2019, at 3:52 PM, David F. Reed  wrote:

In planning my next station, I have not found one item I would like to
add...

I wish to automatically select the correct antenna per band when using a K3
or K4 with associated amplifier.  The objective is to select the
appropriate 1 of 8 possibilities remotely,  I am currently doing this
satisfactorily with a microHam StationMaster, but it has a lot more
capabilities that I am not using, and for my next station, a simpler band
decode, select remote antenna capability would be what I am looking for.

I thought Elecraft used to offer such a best, but I can't seem to find it.
Suggestion?

Thanks and 73 de W5SV, Dave

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Re: [Elecraft] New K1 Kit

[rich hurd WC3T]

Dead bug construction ROCKS.

On Thu, Jun 6, 2019 at 2:02 PM Wayne Burdick  wrote:

> I miss the good ol' days, e.g. high school, when my quick 'n' dirty
> transceiver projects were built by twisting component leads together. No
> PCB, no chassis, nothing but raw parts. Hook up a 9 V battery and a
> shamelessly untuned wire antenna. Work DX. Repeat.
>
> Wayne
> N6KR
>
>
> > On Jun 6, 2019, at 10:50 AM, James Doty  wrote:
> >
> > SMD soldering is actually pretty easy.  It does take a good quality
> > soldering station to do it though.
> >
> > Yes, I need magnification when soldering surface mount components. :)
> >
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> > Post: mailto:Elecraft@mailman.qth.net
> >
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> > Message delivered to n...@elecraft.com
>
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Re: [Elecraft] New K1 Kit

[EricJ]

Yes, pretty easy, but not true that it takes any special or expensive 
soldering station to do quality SMD work.


In the winter months I do a lot of SMD work. I don't have a quality 
soldering station at all. I use solder paste from a small syringe, cheap 
tweezers, a $2 coffee cup warmer (WalMart), a small $25 heat gun used by 
scrapbook crafters (Michael's), and a regular desk magnifier lamp. For a 
few parts, I use tweezers and my regular Hakko soldering iron with a 
pencil point. Here's a video of the technique I've been using for nearly 
10 years of the 62 years I've been a ham.


https://www.youtube.com/watch?v=F0OKuxPiGKs

If the link doesn't appear, google SMT Soldering Movie on youtube.

A K1-level SMD kit would be no problem for anyone capable of attacking a 
thru-hole K1 or K2, but Wayne clearly addressed that possibility, and 
rightly so. The K1 may be dead, but not soon forgotten.


Eric KE6US

K1 s/n 1976

K2 s/n 567


On 6/6/2019 10:50 AM, James Doty wrote:

SMD soldering is actually pretty easy.  It does take a good quality
soldering station to do it though.

Yes, I need magnification when soldering surface mount components. :)

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Re: [Elecraft] New K1 Kit

[Wayne Burdick]

I miss the good ol' days, e.g. high school, when my quick 'n' dirty transceiver 
projects were built by twisting component leads together. No PCB, no chassis, 
nothing but raw parts. Hook up a 9 V battery and a shamelessly untuned wire 
antenna. Work DX. Repeat.

Wayne
N6KR


> On Jun 6, 2019, at 10:50 AM, James Doty  wrote:
> 
> SMD soldering is actually pretty easy.  It does take a good quality
> soldering station to do it though.
> 
> Yes, I need magnification when soldering surface mount components. :)
> 
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Re: [Elecraft] New K1 Kit

[Chris]

I agree.  SMD soldering is actually much faster than through holes because
you don't have to trim leads.  It is just a matter of getting used to small
parts.  Magnifying glasses will definitely be necessary for most of us.
Reviving K1 with SMD parts will make a very trail-friendly radio.

On Thu, Jun 6, 2019 at 1:53 PM James Doty  wrote:

> SMD soldering is actually pretty easy.  It does take a good quality
> soldering station to do it though.
>
> Yes, I need magnification when soldering surface mount components. :)
>
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Re: [Elecraft] K4 standing on Sherwood's RX list

[Wayne Burdick]

To quote the K4 product brochure:

Modular, upgradeable architecture

The K4 is our radio for the present and foreseeable future, extensible in both 
software and hardware.

Wayne
N6KR


> On Jun 6, 2019, at 10:53 AM, Grant Youngman  wrote:
> 
> Certainly agree.  And you never know — if the K4 has a life-cycle similar to 
> the K3/K3S, there may one day be new (affordable) plug-in 24 bit A/D boards 
> without having to buy.a whole new radio :-)
> 
> Grant NQ5T
> K3 #2091 KX3 #8342
> 
>> On Jun 6, 2019, at 1:47 PM, Scott Manthe  wrote:
>> 
>> Where a particular rig lands on "The List" isn't the only consideration. The 
>> K4 seems improved in a number of ways beyond its raw performance compared to 
>> the K3. It is a more modern design (direct sampling) with the ability to add 
>> extra features as needed. I'm not sure I'll be upgrading soon, but the 
>> package is a lot nicer and the interface improvements (band stacking, etc.) 
>> seem to be a real step forward.
>> 


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Re: [Elecraft] New K1 Kit

[Fred Jensen]

Not for me!  The soldering station is a WMD in my hands at this age.

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

On 6/6/2019 10:50 AM, James Doty wrote:
SMD soldering is actually pretty easy. 


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Re: [Elecraft] New K1 Kit

[Wayne Burdick]

Correct on both counts. 

Trust me, as the designer of both the K1 and KX1 I have a soft spot for them 
and would love to bring them back. But several of the critical parts became 
impossible to source, and a substantial redesign would be required to work 
around them.

The good news: the KX2 is s much more radio, in a smaller package. We had 
to go through the K1 and KX1 to get to the KX2, and we're not looking back :)

73,
Wayne
N6KR


> On Jun 6, 2019, at 10:49 AM, rich hurd WC3T  wrote:
> 
> I thought the retirement of the K1 was due to parts being rendered as
> unobtanium, which would more or less demand a redesign; would it not?
> 
> On Thu, Jun 6, 2019 at 1:28 PM Dan Baker  wrote:
> 
>> With the K1 talk I would like to propose, a thousand of us give a 50%
>> deposit on a new run. I’m not asking for a redesign, just one with updated
>> parts so they can resume manufacturing. I don’t see a need for the KX1, we
>> have a KX2.
>> A K1 would provide us with a through hole kit. I would not have to invest
>> the time or expense in building a K2. I could leave it stashed in my
>> pickup. It’s a fun little radio.
>> 
>> 73, Dan KM6CQ
>> --
>> Sent from my iPhone X
>> __
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> 
> 
> -- 
> 72,
> Rich Hurd / WC3T / DMR: 3142737
> Northampton County RACES, EPA-ARRL Public Information Officer for Scouting
> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
> *FN20is*
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Re: [Elecraft] Alpha Antenna/KX3

[Jim Brown]

The RX only loop you're describing are VERY different from magnetic 
loops designed for TX.


73, Jim K9YC

On 6/6/2019 9:11 AM, Edward R Cole wrote:
Interesting reviews on some of the loop antennas.  I've seen W4OP 
adv's for several years.


I plan to make a receive-only 630m loop (4 to 6 foot diam) out of some 
surplus 1/2-inch hardline that is too old for coax use.  The copper 
shield should do well in a loop.  I will use a preamp with it (pcb in 
hand waiting for some spare time to build).  Plan using a small TV 
rotator and tripod mount.  Advantage of the loop is being able to null 
out noise sources. I transmit using 43x122 foot inverted-L.

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Re: [Elecraft] K4 standing on Sherwood's RX list

[Grant Youngman]

Certainly agree.  And you never know — if the K4 has a life-cycle similar to 
the K3/K3S, there may one day be new (affordable) plug-in 24 bit A/D boards 
without having to buy.a whole new radio :-)

Grant NQ5T
K3 #2091 KX3 #8342

> On Jun 6, 2019, at 1:47 PM, Scott Manthe  wrote:
> 
> Where a particular rig lands on "The List" isn't the only consideration. The 
> K4 seems improved in a number of ways beyond its raw performance compared to 
> the K3. It is a more modern design (direct sampling) with the ability to add 
> extra features as needed. I'm not sure I'll be upgrading soon, but the 
> package is a lot nicer and the interface improvements (band stacking, etc.) 
> seem to be a real step forward.
> 

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Re: [Elecraft] New K1 Kit

[James Doty]

SMD soldering is actually pretty easy.  It does take a good quality
soldering station to do it though.

Yes, I need magnification when soldering surface mount components. :)

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Re: [Elecraft] New K1 Kit

[rich hurd WC3T]

I thought the retirement of the K1 was due to parts being rendered as
unobtanium, which would more or less demand a redesign; would it not?

On Thu, Jun 6, 2019 at 1:28 PM Dan Baker  wrote:

> With the K1 talk I would like to propose, a thousand of us give a 50%
> deposit on a new run. I’m not asking for a redesign, just one with updated
> parts so they can resume manufacturing. I don’t see a need for the KX1, we
> have a KX2.
> A K1 would provide us with a through hole kit. I would not have to invest
> the time or expense in building a K2. I could leave it stashed in my
> pickup. It’s a fun little radio.
>
> 73, Dan KM6CQ
> --
> Sent from my iPhone X
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Rich Hurd / WC3T / DMR: 3142737
Northampton County RACES, EPA-ARRL Public Information Officer for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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Re: [Elecraft] K4 standing on Sherwood's RX list

[Scott Manthe]

Where a particular rig lands on "The List" isn't the only consideration. 
The K4 seems improved in a number of ways beyond its raw performance 
compared to the K3. It is a more modern design (direct sampling) with 
the ability to add extra features as needed. I'm not sure I'll be 
upgrading soon, but the package is a lot nicer and the interface 
improvements (band stacking, etc.) seem to be a real step forward.


73,
Scott N9AA


On 6/6/19 12:38 PM, K5WA wrote:

Maybe I've missed an answer since I don't read all the posts but I'm
wondering if the K4HD's design should beat the K3S's on Sherwood's RX list.
I'm sure it will be at least a year before that list is updated with a
production K4HD so plenty of time to speculate.  I have not seen any
detailed specifications out yet but it confuses me when I read that the K4HD
will have a K3S front end.  I've got 3 K3's that are fully upgraded so maybe
the K4 line is just a nice product packaging idea and not a serious jump in
performance?  As you can tell, I am no RF engineer but simply a numbers guy
who is interested in having a better performing rig purely for ego sake
because the K3 already supplies and outperforms my contesting skills
significantly.

  


Maybe this is an Eric or Wayne question.

  


Thanks,

Bob K5WA

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Re: [Elecraft] New K1 Kit

[Lynn W. Taylor, WB6UUT]

Maybe it's just me, but seems the issue is the end of through-hole 
components?


In other words, it might be possible to revive the K1, but it'd be all 
surface mount.


73 -- Lynn

On 6/6/2019 10:28 AM, Dan Baker wrote:

A K1 would provide us with a through hole kit.

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Re: [Elecraft] K4 standing on Sherwood's RX list

[Drew AF2Z]

I wouldn't go that far but a much improved standing on the Sherwood list 
would probably be lost on me. I would be more interested in the improved 
NB/NR processing of the K4 and several operational features.


73,
Drew
AF2Z



On 06/06/19 13:27, Grant Youngman wrote:

The way I operate, I’d probably be fine with a DX-20 and SX-99 :-)

Grant NQ5T
K3 #2091 KX3 #8342


As you can tell, I am no RF engineer but simply a numbers guy
who is interested in having a better performing rig purely for ego sake
because the K3 already supplies and outperforms my contesting skills
significantly.


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Re: [Elecraft] New K1 Kit

[Randall Wood]

That would be so great! I’m in! Only 998 to go.

Randy KE8JWB 

> On Jun 6, 2019, at 1:28 PM, Dan Baker  wrote:
> 
> With the K1 talk I would like to propose, a thousand of us give a 50%
> deposit on a new run. I’m not asking for a redesign, just one with updated
> parts so they can resume manufacturing. I don’t see a need for the KX1, we
> have a KX2.
> A K1 would provide us with a through hole kit. I would not have to invest
> the time or expense in building a K2. I could leave it stashed in my
> pickup. It’s a fun little radio.
> 
> 73, Dan KM6CQ
> -- 
> Sent from my iPhone X
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[Elecraft] New K1 Kit

[Dan Baker]

With the K1 talk I would like to propose, a thousand of us give a 50%
deposit on a new run. I’m not asking for a redesign, just one with updated
parts so they can resume manufacturing. I don’t see a need for the KX1, we
have a KX2.
A K1 would provide us with a through hole kit. I would not have to invest
the time or expense in building a K2. I could leave it stashed in my
pickup. It’s a fun little radio.

73, Dan KM6CQ
-- 
Sent from my iPhone X
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Re: [Elecraft] K4 standing on Sherwood's RX list

[Grant Youngman]

The way I operate, I’d probably be fine with a DX-20 and SX-99 :-)

Grant NQ5T
K3 #2091 KX3 #8342

> As you can tell, I am no RF engineer but simply a numbers guy
> who is interested in having a better performing rig purely for ego sake
> because the K3 already supplies and outperforms my contesting skills
> significantly.  

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[Elecraft] K4 standing on Sherwood's RX list

[K5WA]

Maybe I've missed an answer since I don't read all the posts but I'm
wondering if the K4HD's design should beat the K3S's on Sherwood's RX list.
I'm sure it will be at least a year before that list is updated with a
production K4HD so plenty of time to speculate.  I have not seen any
detailed specifications out yet but it confuses me when I read that the K4HD
will have a K3S front end.  I've got 3 K3's that are fully upgraded so maybe
the K4 line is just a nice product packaging idea and not a serious jump in
performance?  As you can tell, I am no RF engineer but simply a numbers guy
who is interested in having a better performing rig purely for ego sake
because the K3 already supplies and outperforms my contesting skills
significantly.  

 

Maybe this is an Eric or Wayne question.

 

Thanks,

Bob K5WA

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Re: [Elecraft] Alpha Antenna/KX3

[Gwen Patton]

I built a loop a few months ago, using flexible plastic pipe strap and 1/2"
copper foil tape with conductive adhesive. I used a junkbox air-gap
capacitor and a 10x vernier knob to tune it. I ran 100w through it on FT8
and ran an infrared thermometer all around it and it barely warmed past
room temperature. From inside my house in the Philly burbs, I got FT8
contacts in northern Wisconsin and Fargo, North Dakota on 30 meters, so I
think it was getting out pretty well. I was running 30 watts or so on it at
the time, as I recall. Not bad from indoors on the first floor with a steel
workbench a foot away and resting on a wire rack. Someday I'll take it on a
park run and see how well it works out in the open. I'm considering making
a better loop first though, as this one is pretty flimsy and probably won't
stand up to any significant wind. I need to redesign it for more rigidity
and probably a somewhat larger loop to get at least SOME efficiency on 40
meters and perhaps even a little on 75/80, though that's asking a lot of a
small loop.

73,
Gwen, NG3P

On Thu, Jun 6, 2019 at 12:11 PM Edward R Cole  wrote:

> Interesting reviews on some of the loop antennas.  I've seen W4OP
> adv's for several years.
>
> I plan to make a receive-only 630m loop (4 to 6 foot diam) out of
> some surplus 1/2-inch hardline that is too old for coax use.  The
> copper shield should do well in a loop.  I will use a preamp with it
> (pcb in hand waiting for some spare time to build).  Plan using a
> small TV rotator and tripod mount.  Advantage of the loop is being
> able to null out noise sources. I transmit using 43x122 foot inverted-L.
>
> The loop might also work for 160m if I ever try that band.
>
> 73, Ed - KL7UW
>http://www.kl7uw.com
> Dubus-NA Business mail:
>dubus...@gmail.com
>
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-- 

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
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Re: [Elecraft] band decode/antenna switch controller

[Don Wilhelm]

Evert,

No, it decodes by band and not by frequency segments.

73,
Don W3FPR

On 6/6/2019 11:32 AM, Evert Bakker wrote:


A Q abt the KRC2:

Is it possible two switch to two different antennes within one band but
based on frequency span ?

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Re: [Elecraft] Alpha Antenna/KX3

[Edward R Cole]

Interesting reviews on some of the loop antennas.  I've seen W4OP 
adv's for several years.


I plan to make a receive-only 630m loop (4 to 6 foot diam) out of 
some surplus 1/2-inch hardline that is too old for coax use.  The 
copper shield should do well in a loop.  I will use a preamp with it 
(pcb in hand waiting for some spare time to build).  Plan using a 
small TV rotator and tripod mount.  Advantage of the loop is being 
able to null out noise sources. I transmit using 43x122 foot inverted-L.


The loop might also work for 160m if I ever try that band.

73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] band decode/antenna switch controller

[Randy Farmer]

Going in a slightly different direction, you might want to consider the 
Green Heron Everyware system. It will allow you to do all kinds of 
things, pretty much anything you can think up, and has the added 
advantage of eliminating a bunch of control cables. You can use 
inexpensive multiple relay cards that are readily available online to 
activate any kind of switch you want. I replaced a pair of Station 
Masters with the GHE system a couple of years ago and have been very 
happy with the results.


73...
Randy, W8FN

On 6/6/2019 10:32 AM, Evert Bakker wrote:

A Q abt the KRC2:

Is it possible two switch to two different antennes within one band but
based on frequency span ?

Example:
3.500 - 3.650 Mc Antenna 1
3.650 - 3.800 Mc Antenne 2

73's, Evert PA2KW


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Re: [Elecraft] band decode/antenna switch controller

[Evert Bakker]

A Q abt the KRC2:

Is it possible two switch to two different antennes within one band but
based on frequency span ?

Example: 
3.500 - 3.650 Mc Antenna 1
3.650 - 3.800 Mc Antenne 2

73's, Evert PA2KW

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Re: [Elecraft] band decode/antenna switch controller

[john]

I concur.  I have owned the original Top Ten six position Banddecoders  
for decades. They work very well with Elecraft as well as other brands  
of transceivers and N3RD offers fantastic support.  Automatic antenna  
and bandpass filter switching is so nice to have. I even brought one  
along with a Top Ten 6 way relay box with me to Bonaire last March.


John KK9A  - PJ4R


Jim N7US wrote:

I've used band decoders from Top Ten Devices for many years.

https://toptendevices.com/products/band-aide-band-decoder/

Jim N7US



On Jun 6, 2019, at 3:52 PM, David F. Reed  wrote:

In planning my next station, I have not found one item I would like to add...

I wish to automatically select the correct antenna per band when  
using a K3 or K4 with associated amplifier.  The objective is to  
select the appropriate 1 of 8 possibilities remotely,  I am  
currently doing this satisfactorily with a microHam StationMaster,  
but it has a lot more capabilities that I am not using, and for my  
next station, a simpler band decode, select remote antenna  
capability would be what I am looking for.


I thought Elecraft used to offer such a best, but I can't seem to find it.
Suggestion?

Thanks and 73 de W5SV, Dave


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Re: [Elecraft] band decode/antenna switch controller

[Don Wilhelm]

David,

You are apparently looking for the Elecraft KRC2.  It is on the website 
- enter KRC2 in the website search box to find it.


73,
Don W3FPR

On 6/6/2019 10:52 AM, David F. Reed wrote:

In planning my next station, I have not found one item I would like to
add...

I wish to automatically select the correct antenna per band when using a K3
or K4 with associated amplifier.  The objective is to select the
appropriate 1 of 8 possibilities remotely,  I am currently doing this
satisfactorily with a microHam StationMaster, but it has a lot more
capabilities that I am not using, and for my next station, a simpler band
decode, select remote antenna capability would be what I am looking for.

I thought Elecraft used to offer such a best, but I can't seem to find it.
Suggestion?


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Re: [Elecraft] band decode/antenna switch controller

[Jim N7US]

I've used band decoders from Top Ten Devices for many years.

https://toptendevices.com/products/band-aide-band-decoder/ 

Jim N7US


> On Jun 6, 2019, at 3:52 PM, David F. Reed  wrote:
> 
> In planning my next station, I have not found one item I would like to 
> add...
> 
> I wish to automatically select the correct antenna per band when using 
> a K3 or K4 with associated amplifier.  The objective is to select the 
> appropriate 1 of 8 possibilities remotely,  I am currently doing this 
> satisfactorily with a microHam StationMaster, but it has a lot more 
> capabilities that I am not using, and for my next station, a simpler 
> band decode, select remote antenna capability would be what I am looking for.
> 
> I thought Elecraft used to offer such a best, but I can't seem to find it.
> Suggestion?
> 
> Thanks and 73 de W5SV, Dave

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delivered to j...@n7us.net 

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Re: [Elecraft] band decode/antenna switch controller

[Paul Gacek via Elecraft]

David 

Elecraft does and its the KCR2 kit.

See my blog for snaps etc

https://nomadic.blog/2019/01/07/suitcase-dxpedition-station-automation-step-1-the-elecraft-krc2/
 


Also, I have been down a similar path recently and you might some of my station 
automation posts of value (or not…).

You will need something like this.

https://nomadic.blog/2019/04/07/suitcase-dxpedition-2x6-antenna-switch/ 


Paul
W6PNg/M0SNA

> On Jun 6, 2019, at 3:52 PM, David F. Reed  wrote:
> 
> In planning my next station, I have not found one item I would like to
> add...
> 
> I wish to automatically select the correct antenna per band when using a K3
> or K4 with associated amplifier.  The objective is to select the
> appropriate 1 of 8 possibilities remotely,  I am currently doing this
> satisfactorily with a microHam StationMaster, but it has a lot more
> capabilities that I am not using, and for my next station, a simpler band
> decode, select remote antenna capability would be what I am looking for.
> 
> I thought Elecraft used to offer such a best, but I can't seem to find it.
> Suggestion?
> 
> Thanks and 73 de W5SV, Dave
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[Elecraft] band decode/antenna switch controller

[David F. Reed]

In planning my next station, I have not found one item I would like to
add...

I wish to automatically select the correct antenna per band when using a K3
or K4 with associated amplifier.  The objective is to select the
appropriate 1 of 8 possibilities remotely,  I am currently doing this
satisfactorily with a microHam StationMaster, but it has a lot more
capabilities that I am not using, and for my next station, a simpler band
decode, select remote antenna capability would be what I am looking for.

I thought Elecraft used to offer such a best, but I can't seem to find it.
Suggestion?

Thanks and 73 de W5SV, Dave
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Re: [Elecraft] K3: Antenna not connecting on change to BC frequencies

[Nr4c]

I don’t think that “neither” is a normal state for the AKAT3. Its either 1 or 
2.  Have you talked to Elecraft?  Perhaps there’d be more able to help. 

Sent from my iPhone
...nr4c. bill


> On Jun 6, 2019, at 1:24 AM, Nigel  wrote:
> 
> Hi Ben, thankyou for your suggestions, all of which I have tried (except the 
> macro).The firmware is up to date and the MEM 0-9 change to “BAND SEL” 
> made no difference. However I may not have explained the issue clearly 
> enough.
> 
> I have active aerials connected to both ANT-1 and ANT-2 of the K3.It is 
> not that a different antenna is not selected but that NO antenna connection 
> is made at all.  After the frequency change there is weak signal heard 
> from capacitive coupling feed through but not a full circuit connection.  
> Very occasionally a solid connection is made as also happens by tapping ANT, 
> A/B or REV after the frequency change.  I am beginning to think it is 
> fault situation of perhaps a sticky relay, intermittent connection or other.  
> I built my fully kitted K2 but am lost as to where to look in the K3. 
>   Is one able to trouble shoot issues on the K3 or is it a case of 
> sending the rig/parts back to Elecraft which is probably not practical from 
> NZ?At least the issue does not affect the ham bands 
> 
> 73
> 
> Nigel ZL2DF
> 
> 
> 
> From: w4sc  
> Sent: Thursday, 6 June 2019 10:11 AM
> To: zl...@xtra.co.nz; Elecraft@mailman.qth.net
> Subject: [Elecraft] K3: Antenna not connecting on change to BC frequencies
> 
> 
> 
> Appears that the BCB and 160M are all in the same “BAND” (0.49 to 2.2MHz)  as 
> far as Memories are concerned…. The clue to this is in the Memory editor on 
> the Elecraft website.  This is why your antenna selection is not changed when 
> you select the BCB memory.  Also it appears that any frequency outside of the 
> currently selected band is rejected.  This is what I have observed in trying 
> to get the “Memory” function to work.
> 
> 
> 
> The only solution I see is to write a MACRO to set desired Frequenct, MODE, 
> ANT selection, ect.. The Memory recalled that is within the current band 
> should work, selecting the frequency you want.
> 
> 
> 
> 73 
> 
> Ben
> 
> 
> 
> Sent from Mail   for Windows 
> 10
> 
> 
> 
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Re: [Elecraft] K4: superhet vs. direct sampling

[Richard Corfield]

Which is interesting. We were taught that you can recover signals up to the
Nyquist frequency (half sampling frequency) before aliasing becomes an
issue. People low pass filter well before then to avoid aliasing issues,
but it means you need a sampling frequency sufficiently more than twice the
highest frequency you want to record. So presumably for the 6m band that's
sufficiently greater than 110,000,000 samples per second.

What gets me though, is when you look at the waveforms and the sampling
waveforms, a signal at the Nyquist frequency could have magnitude from 0 to
full size depending on its phase with respect to the sampling. Assuming
regular sampling (do any dither the sampling?). Move just below Nyquist and
you'll see a beat frequency come in as it moves in and out of phase. I
guess the maths is based on infinite time - Fourier being the integral from
-infinity to +infinity - but we've not got infinite time to listen to an
infinitely long SSB signal.

You can buy a reasonably cheap digital oscilloscope (Tektronix TBS1000 -
£600) which boasts 1GS/s so a Nyquist frequency of 500MHz. They claim 50MHz
analogue bandwidth.  (If you're thinking of buying this double check the
figures first rather than take my work for it. The marketing material was a
little opaque).

A 2nd order filter (cheap, simple) with a 3dB point at 50MHz and
40dB/decade would be about 40dB down by the Nyquist frequency. In the lower
bands, say 10MHz, the first aliases are from 990MHz which is 55dB down if I
remember my maths right. I'd assume someone would use better than a 2nd
order filter or a faster sampling ADC.



On Thu, 6 Jun 2019 at 10:38, David Woolley 
wrote:

> On 05/06/2019 13:23, W2xj wrote:
> > Direct sampling has no image issues.
>
> That's because they are called aliasing issues!
>
> --
> David Woolley
>
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Re: [Elecraft] K4: superhet vs. direct sampling

[David Woolley]

On 05/06/2019 13:23, W2xj wrote:

Direct sampling has no image issues.


That's because they are called aliasing issues!

--
David Woolley

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