[Elecraft] KX3 update utility download removed (i.e. blocked) by Norton Internet Security in Windows 7

[Oliver Barrett]

Hi all,

My Norton Internet Security removed the KX3 firmware update utility from my 
Windows 7 PC after I tried to download it, based on crowdsourcing criteria 
(only a few hundred users and over a year old).

Any suggestions on how to get around this?

Thanks!
Oliver Barrett  KB6BA

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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[thelastdb]

Yep, the Sunforce one switches on and off. 
Myron WVØHPrinted on Recycled Data  Original message From: 
Harry Yingst  Date: 3/17/2017  8:27 PM  (GMT-07:00) To: 
thelas...@gmail.com, Harry Yingst via Elecraft  
Subject: Re: [Elecraft] Who sells a small RF quiet solar charge controller? 
Is it the sun force one that turns on an off?





   From: "thelas...@gmail.com" 
 To: Harry Yingst via Elecraft  
 Sent: Friday, March 17, 2017 9:41 PM
 Subject: Re: [Elecraft] Who sells a small RF quiet solar charge controller?
   
The ultimate quite charge controller, an ON/OFF type that turns on when the 
battery voltages falls to 13.1v and turns off when it reaches 14.4V and no 
switching noise. 

I have one of these and a Genasun GV-4 for SLA battery chemistry.

https://www.amazon.com/Sunforce-7-Amp-Charge-Controller/dp/B0006JO0XI

72
Myron
WV0H
Printed On Recycled Data

From: Harry Yingst via Elecraft
Sent: Thursday, March 16, 2017 7:16 PM
To: Elecraft Reflector
Subject: [Elecraft] Who sells a small RF quiet solar charge controller?



I'm looking for a small RF quiet solar charge controller to charge a battery 
for my K2.


Who makes a good quiet one?


Thank you
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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[Harry Yingst via Elecraft]

Thank you

 Original message 
From: Jim Brown  
Date: 2017-03-17  11:00 PM  (GMT-05:00) 
To: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] Who sells a small RF quiet solar charge controller? 

On Fri,3/17/2017 7:27 PM, Harry Yingst via Elecraft wrote:
> Is it the sun force one that turns on an off?

Yes. It's called a hysteresis controller. Very simple. Which is why it's 
quiet and inexpensive.

73, Jim K9YC


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Re: [Elecraft] Linear thoughts

[Wes Stewart]

You haven't been paying attention.  I asked for both of those.

On 3/17/2017 5:20 PM, Gary K9GS wrote:

A lot of great suggestions but two I have not seen discussed:

1)  I really like the idea of a separate power supply simply because if the 
amp has to ever go in for service or be shipped it is a lot easier without a 
heavy power supply inside the cabinet. Just send the RF deck to Elecraft.


2)  I like the idea of an optional INTERNAL tuner.  Makes it nice and clean 
for those that need a tuner without a rats nest of Y cables, etc.  If there is 
going to be an external tuner make it weatherproof so you can put it OUTSIDE.


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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[Jim Brown]

On Fri,3/17/2017 7:27 PM, Harry Yingst via Elecraft wrote:

Is it the sun force one that turns on an off?


Yes. It's called a hysteresis controller. Very simple. Which is why it's 
quiet and inexpensive.


73, Jim K9YC


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Re: [Elecraft] Linear thoughts

[Jim Miller]

and I didn't mention price because I really don't care. Not that I'm loaded
but I know that what I'm asking for isn't cheap. But I've always found
Elecraft to be excellent value for the money.

nuff said.

jim ab3cv

On Fri, Mar 17, 2017 at 10:19 PM, Jim Miller  wrote:

> Forgot to mention:
>
> I hate the fan noise of the ACOM1500. KPA1500 should emulate the KPA500,
> noise only when necessary!
>
> On Fri, Mar 17, 2017 at 9:56 PM, Jim Miller  wrote:
>
>> TLDR version: Basically I want a full legal limit key down version of the
>> KPA500 and a companion ala KAT1500
>>
>> Details:
>>
>> I recently purchased a ACOM1500 while biding my time for a KPA1500. (I
>> already have a KPA500 and really like it.)
>>
>> Things I don't like about this tube amp::
>> 1. Tuning
>> 2. Waiting for warm up
>> 3. No chance of remote operation
>> 4. Not capable of 1500w on 6M JT65 (~1minute key down)
>> 5. Not capable of 1500w RTTY
>> 6. Obviously not integrated with K3 wrt band changing.
>>
>> What I want:
>> 1. Full legal limit 160 thru 6m including for JT65 (including 6m for EME
>> ~1minute key down) and RTTY. I like that I don't have to baby the KPA500.
>> 2. Full integration with K3 ala KPA500. Band changing, per band power,
>> etc.
>> 3. KAT1500 built in or separate (doesn't matter). Needed primarily for
>> 80m vertical and 160 inverted L which is likely what almost everyone needs.
>> 160 SWR needs at least 3:1 and preferably 5:1 capability, ditto 80m. I use
>> a single 7/8" hardline to a remote antenna switch. Loss is minimal for 80
>> and 160. Other bands are served by Steppir or monoband 6m.
>> 4. Must be capable of remote operation as least as good as KPA500, e.g.,
>> ON/OFF, status monitoring, fault recovery, fault reporting. I'm sure
>> remoting is in my future in my next QTH choice.
>> 5. QSK. I like being able to hear when the DX is responding and kill my
>> call when I hear it.
>> 6. Most importantly Elecraft quality, service and support!
>>
>> Some thoughts:
>> I really don't care if the PSU is integrated or not but I'd like a
>> profile similar to the KPA500 if possible. I like having the KPA (KAT on
>> top) aside the P3/K3s which sit nicely below my wall mounted monitors.
>> Excellent ergonomics.
>>
>> Making the PSU switchable between 110 and 220 (for NA) and limiting
>> output accordingly would make it possible to serve 1KW and 1.5KW market
>> with a single amp which would be upgradable by running 220 to the shack.
>> Might broaden the appeal.
>>
>> Remote operation is important as we will likely be downsizing and as a
>> result my rig will be at my daughter's house where I will have occasional
>> access for contesting but most of my DXing will be remotely from my house.
>> Great remote operation is a must.
>>
>> 73
>>
>> jim ab3cv (credit card ready for immediate purchase!)
>>
>>
>> On Fri, Mar 17, 2017 at 1:06 PM, Eric Swartz - WA6HHQ, Elecraft <
>> e...@elecraft.com> wrote:
>>
>>> Interesting discussion.
>>>
>>> Folks, if we did introduce a 1500 W solid state amp similar to our
>>> KPA500 in operation, what features etc would be important?
>>>
>>> 73,
>>> Eric
>>> /elecraft.com/
>>>
>>>
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to j...@jtmiller.com
>>>
>>
>>
>
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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[Harry Yingst via Elecraft]

Is it the sun force one that turns on an off?





  From: "thelas...@gmail.com" 
 To: Harry Yingst via Elecraft  
 Sent: Friday, March 17, 2017 9:41 PM
 Subject: Re: [Elecraft] Who sells a small RF quiet solar charge controller?
   
The ultimate quite charge controller, an ON/OFF type that turns on when the 
battery voltages falls to 13.1v and turns off when it reaches 14.4V and no 
switching noise. 

I have one of these and a Genasun GV-4 for SLA battery chemistry.

https://www.amazon.com/Sunforce-7-Amp-Charge-Controller/dp/B0006JO0XI

72
Myron
WV0H
Printed On Recycled Data

From: Harry Yingst via Elecraft
Sent: Thursday, March 16, 2017 7:16 PM
To: Elecraft Reflector
Subject: [Elecraft] Who sells a small RF quiet solar charge controller?



I'm looking for a small RF quiet solar charge controller to charge a battery 
for my K2.


Who makes a good quiet one?


Thank you
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Re: [Elecraft] Linear thoughts

[Jim Miller]

Forgot to mention:

I hate the fan noise of the ACOM1500. KPA1500 should emulate the KPA500,
noise only when necessary!

On Fri, Mar 17, 2017 at 9:56 PM, Jim Miller  wrote:

> TLDR version: Basically I want a full legal limit key down version of the
> KPA500 and a companion ala KAT1500
>
> Details:
>
> I recently purchased a ACOM1500 while biding my time for a KPA1500. (I
> already have a KPA500 and really like it.)
>
> Things I don't like about this tube amp::
> 1. Tuning
> 2. Waiting for warm up
> 3. No chance of remote operation
> 4. Not capable of 1500w on 6M JT65 (~1minute key down)
> 5. Not capable of 1500w RTTY
> 6. Obviously not integrated with K3 wrt band changing.
>
> What I want:
> 1. Full legal limit 160 thru 6m including for JT65 (including 6m for EME
> ~1minute key down) and RTTY. I like that I don't have to baby the KPA500.
> 2. Full integration with K3 ala KPA500. Band changing, per band power, etc.
> 3. KAT1500 built in or separate (doesn't matter). Needed primarily for 80m
> vertical and 160 inverted L which is likely what almost everyone needs. 160
> SWR needs at least 3:1 and preferably 5:1 capability, ditto 80m. I use a
> single 7/8" hardline to a remote antenna switch. Loss is minimal for 80 and
> 160. Other bands are served by Steppir or monoband 6m.
> 4. Must be capable of remote operation as least as good as KPA500, e.g.,
> ON/OFF, status monitoring, fault recovery, fault reporting. I'm sure
> remoting is in my future in my next QTH choice.
> 5. QSK. I like being able to hear when the DX is responding and kill my
> call when I hear it.
> 6. Most importantly Elecraft quality, service and support!
>
> Some thoughts:
> I really don't care if the PSU is integrated or not but I'd like a profile
> similar to the KPA500 if possible. I like having the KPA (KAT on top) aside
> the P3/K3s which sit nicely below my wall mounted monitors. Excellent
> ergonomics.
>
> Making the PSU switchable between 110 and 220 (for NA) and limiting output
> accordingly would make it possible to serve 1KW and 1.5KW market with a
> single amp which would be upgradable by running 220 to the shack. Might
> broaden the appeal.
>
> Remote operation is important as we will likely be downsizing and as a
> result my rig will be at my daughter's house where I will have occasional
> access for contesting but most of my DXing will be remotely from my house.
> Great remote operation is a must.
>
> 73
>
> jim ab3cv (credit card ready for immediate purchase!)
>
>
> On Fri, Mar 17, 2017 at 1:06 PM, Eric Swartz - WA6HHQ, Elecraft <
> e...@elecraft.com> wrote:
>
>> Interesting discussion.
>>
>> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500
>> in operation, what features etc would be important?
>>
>> 73,
>> Eric
>> /elecraft.com/
>>
>>
>> __
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>>
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>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to j...@jtmiller.com
>>
>
>
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Re: [Elecraft] Linear thoughts

[Erik Basilier]

Regarding spending capacity, I agree that the Elecraft KPA1500 with tuner
would be too expensive to appeal to a lot of people, including myself.
However, looking back I can see that I have been able to spend a smaller but
substantial amount several times. A modular approach to the design would
make it possible to get to 500W first, for a price not too different from
the KPA500, and then add modules/capability later. This approach also makes
more sense for hams in countiries where 1500W or even 1000W is not allowed.
Combining lower power modules leads to higher production numbers, which
should help reduce per-unit cost.

73,
Erik K7TV

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w7aqk
Sent: Friday, March 17, 2017 6:59 PM
To: Elecraft Reflector 
Subject: Re: [Elecraft] Linear thoughts

Hi All,

I don't really have an oar in this debate, since I am 99.99% sure I won't be
buying one--a 1500 watt linear, that is.  However, it seems to me that all
this advice to Eric should include some reasonable estimate of what one
would be willing to pay for it!!!  So far, I think I've only seen one such
estimate--3 times the cost of a KPA500, which is probably a fair guess!  If
you throw in the upgraded tuner, you are talking $7500 or so!  Wow!  $5000
more just to gain slightly less than 1 S unit!  I like to think in terms  of
$/S unit, rather than $/watt.  The latter seems meaningless at this level!

Well, some folks will probably spend that in a heartbeat!  I guess that's
about what the new Flex amp everyone is talking about will cost.  If
Elecraft could do it for much less, they may be on to something!  Still, at
this price level, a few hundred bucks one way or another may not mean that
much.  Nonetheless, I think we do need some feel for a price point to keep
appetites in check.

For what it is worth, I think keeping the ATU external gives people an
opportunity to control cost somewhat.  A big plus would be access to
Elecraft support!

Even sitting on the sidelines this is rather fascinating!

Dave W7AQK


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Re: [Elecraft] Linear thoughts

[Rick WA6NHC]

I've had pretty good success with the KPA500, but since you asked, 
another couple S units is always better than less.  If you don't need 
1500 out, dial it back.  You can't push a smaller amp up, but you can 
throttle a large amp down... there if you need it.


Matching automatic tuner with the K3 and KAT 10:1 range (stuff happens, 
give it room to compensate), built in; more than 3 antenna ports.  
Consider SO2R modes for contesters (multiple inputs).


Enough power supply and transistor overhead to be able to 'comfortably' 
run at full power on RTTY, or whatever abusive mode is needed.


QUIET.  Period, quiet.  Both to the ears and nearby stations (clean amp)

Keep the drive required from the K3 low for a cleaner overall 
transmission (reduce IMD).


The usual Elecraft quality with total integration.

I suspect that your main issue will be in keeping the cost competitive.

Rick NHC (one HAPPY customer)


On 3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our 
KPA500 in operation, what features etc would be important?


73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[w7aqk]

Hi All,

I don't really have an oar in this debate, since I am 99.99% sure I won't be 
buying one--a 1500 watt linear, that is.  However, it seems to me that all 
this advice to Eric should include some reasonable estimate of what one 
would be willing to pay for it!!!  So far, I think I've only seen one such 
estimate--3 times the cost of a KPA500, which is probably a fair guess!  If 
you throw in the upgraded tuner, you are talking $7500 or so!  Wow!  $5000 
more just to gain slightly less than 1 S unit!  I like to think in terms  of 
$/S unit, rather than $/watt.  The latter seems meaningless at this level!


Well, some folks will probably spend that in a heartbeat!  I guess that's 
about what the new Flex amp everyone is talking about will cost.  If 
Elecraft could do it for much less, they may be on to something!  Still, at 
this price level, a few hundred bucks one way or another may not mean that 
much.  Nonetheless, I think we do need some feel for a price point to keep 
appetites in check.


For what it is worth, I think keeping the ATU external gives people an 
opportunity to control cost somewhat.  A big plus would be access to 
Elecraft support!


Even sitting on the sidelines this is rather fascinating!

Dave W7AQK


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Re: [Elecraft] Linear thoughts

[Jim Miller]

TLDR version: Basically I want a full legal limit key down version of the
KPA500 and a companion ala KAT1500

Details:

I recently purchased a ACOM1500 while biding my time for a KPA1500. (I
already have a KPA500 and really like it.)

Things I don't like about this tube amp::
1. Tuning
2. Waiting for warm up
3. No chance of remote operation
4. Not capable of 1500w on 6M JT65 (~1minute key down)
5. Not capable of 1500w RTTY
6. Obviously not integrated with K3 wrt band changing.

What I want:
1. Full legal limit 160 thru 6m including for JT65 (including 6m for EME
~1minute key down) and RTTY. I like that I don't have to baby the KPA500.
2. Full integration with K3 ala KPA500. Band changing, per band power, etc.
3. KAT1500 built in or separate (doesn't matter). Needed primarily for 80m
vertical and 160 inverted L which is likely what almost everyone needs. 160
SWR needs at least 3:1 and preferably 5:1 capability, ditto 80m. I use a
single 7/8" hardline to a remote antenna switch. Loss is minimal for 80 and
160. Other bands are served by Steppir or monoband 6m.
4. Must be capable of remote operation as least as good as KPA500, e.g.,
ON/OFF, status monitoring, fault recovery, fault reporting. I'm sure
remoting is in my future in my next QTH choice.
5. QSK. I like being able to hear when the DX is responding and kill my
call when I hear it.
6. Most importantly Elecraft quality, service and support!

Some thoughts:
I really don't care if the PSU is integrated or not but I'd like a profile
similar to the KPA500 if possible. I like having the KPA (KAT on top) aside
the P3/K3s which sit nicely below my wall mounted monitors. Excellent
ergonomics.

Making the PSU switchable between 110 and 220 (for NA) and limiting output
accordingly would make it possible to serve 1KW and 1.5KW market with a
single amp which would be upgradable by running 220 to the shack. Might
broaden the appeal.

Remote operation is important as we will likely be downsizing and as a
result my rig will be at my daughter's house where I will have occasional
access for contesting but most of my DXing will be remotely from my house.
Great remote operation is a must.

73

jim ab3cv (credit card ready for immediate purchase!)


On Fri, Mar 17, 2017 at 1:06 PM, Eric Swartz - WA6HHQ, Elecraft <
e...@elecraft.com> wrote:

> Interesting discussion.
>
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500
> in operation, what features etc would be important?
>
> 73,
> Eric
> /elecraft.com/
>
>
> __
> Elecraft mailing list
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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 j...@jtmiller.com
>
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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[Jim Brown]

Yes. The difference is that the Genesun is an MPPT controller, which 
uses the solar panel(s) far more efficiently, allowing the battery to 
charge faster, but still within the parameters of the chemistry for 
which it was designed. A local ham suggested the Sun Force as a low cost 
option, and it does, indeed, work. And it;s quiet.


73, Jim K9YC

On Fri,3/17/2017 6:30 PM, thelas...@gmail.com wrote:

The ultimate quite charge controller, an ON/OFF type that turns on when the 
battery voltages falls to 13.1v and turns off when it reaches 14.4V and no 
switching noise.

I have one of these and a Genasun GV-4 for SLA battery chemistry.

https://www.amazon.com/Sunforce-7-Amp-Charge-Controller/dp/B0006JO0XI



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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[thelastdb]

The ultimate quite charge controller, an ON/OFF type that turns on when the 
battery voltages falls to 13.1v and turns off when it reaches 14.4V and no 
switching noise. 

I have one of these and a Genasun GV-4 for SLA battery chemistry.

https://www.amazon.com/Sunforce-7-Amp-Charge-Controller/dp/B0006JO0XI

72
Myron
WV0H
Printed On Recycled Data

From: Harry Yingst via Elecraft
Sent: Thursday, March 16, 2017 7:16 PM
To: Elecraft Reflector
Subject: [Elecraft] Who sells a small RF quiet solar charge controller?



I'm looking for a small RF quiet solar charge controller to charge a battery 
for my K2.


Who makes a good quiet one?


Thank you
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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[David Rutledge via Elecraft]

 blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px 
#715FFA solid !important; padding-left:1ex !important; background-color:white 
!important; } Aaron Marroquin's post fits what you're looking for. Jim Cordill, 
KI0BK, at Flint Hills Radio makes an adjustable solar charge controller.
Solar 
It's small and will do what you need.  If you have a question or there is 
something else you would like to see in it shoot him an e-mail. 
73,David A. RutledgeAL5M


Sent from Yahoo Mail for iPad


On Friday, March 17, 2017, 17:36, Dave Corsello  wrote:

I use a Genasun GV-5 and a Bioenno Power 4.5 Ah LiFePO4 battery to power 
my KX2.  I agree with Jim.  These components work great together--but 
with one exception:  I can't float the battery with the GV-5.  When the 
battery approaches full charge, its internal monitoring disconnects the 
battery from the circuit, causing the GV-5 to go to open circuit voltage 
of >= 18 V in full sunlight.  According to Elecraft, this would fry my 
radio.  So, as a work around, I use a DPDT switch to keep the solar 
panel and the load on separate circuits, selectively connecting one or 
the other to the controller.  This way, when the panel is connected and 
the controller signals an over voltage error (according to Bioenno, this 
doesn't harm the battery), I know that my battery is fully charged.  I 
then disconnect the panel and connect the load by flipping the switch.  
I don't mean to hijack Harry's thread--hopefully this post adds value 
for him.  But I wonder if there is any other combination of small, 
lightweight MPPT controller and LiFePO4 battery that would permit 
floating the battery.

On 3/17/2017 9:16 AM, elecraft-requ...@mailman.qth.net wrote:
> Message: 15
> Date: Thu, 16 Mar 2017 21:48:53 -0700
> From: Jim Brown
> To:elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Who sells a small RF quiet solar charge
>     controller?
> Message-ID:
>     <8ce42df0-9c51-3043-1f0a-009ce8912...@audiosystemsgroup.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> On Thu,3/16/2017 6:11 PM, Harry Yingst via Elecraft wrote:
>> I'm looking for a small RF quiet solar charge controller to charge a battery 
>> for my K2.
> Genesun, Genasun, Genasun. They work very well and they are quiet. Make
> sure you get the right model for the battery chemistry you're using.
> They make models for lead acid, LiPO4, and Li Ion.
>
> 73, Jim K9YC

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Re: [Elecraft] Linear thoughts

[Erik Basilier]

To add to my thoughts on new Elecraft QRO amp's in a new system
architecture:

Amp modules could be produced in multiple generations as RF power transistor
technology evolves. I envision models capable of 500, 750 or 1000 W pep, and
it should be possible to combine up to 4 modules for use with any one
virtual radio. 

A virtual radio could be a physica radio like a K3/K3S, or it could be truly
virtual, based on an ADC working with signals at on-the-air frequency.

In the scenario of multiple amp modules working in parallel, external tuners
are mandatory. However an amp module could have space inside for an internal
tuner option.
There could be a weatherization option that allows such an amp module to be
mounted outdoors. Remember, every amp module is built for remote control
rather than front panel controls. One amp module using KPA500 technology
would cost a little less than an actual KPA500 with its fancy front panel.
There would be an upgrade/addon that would make the KPA500 able to play the
role of one of the new amp's based on KPA500 technology and capabilities.

If you forgive me for the antropomorphic approach, the persona of a "display
module" might present itself as follows: 
" Hi, in my old job I used to be a panadapter. I would be the team member
doing everything related to panadapter work, but not much else. Well,
recently I have accepted some additional tasks such as transmitter
monitoring and user interface for communications. In my new job, I make my
hardware resources (display and processing power) available to serve any
capability the team wishes to implement, and even multiple simultaneous
capabilities." That attitude of serving multiple purposes would exist in
other modules as well.

73,
Erik K7TV

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Erik
Basilier
Sent: Friday, March 17, 2017 3:00 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] Linear thoughts

To make this an Elecraft amp, it should be designed based on the best
architectural ideas from the Elecraft tradition. At this point of the
evolution, this must be seen at the system level, including the (never-to-be
?) "K4" and all other "K-line" components.

 

Why such a broad scope? The present chaining together of control cables is
showing its limits. When major features are to be introduced, maximum
flexibility is achieved when control signals from A to B don't have to
travel through multiple boxes. A client-server approach is appropriate,
maybe using Ethernet as backbone. Won't this shut out the owners of
non-Elecraft equipment? No, each box will still have a a more conventional
control interface. Once a user adds more than one Elecraft box, fast
intercommunication between those boxes may provide features not practical if
the second box were of a different brand.

 

Key Elecraft philosophies to build on. Value retention. No need to buy a
whole new rig to add functionality. Modularity. Today we can add options
inside the K3(s). That is great as long as the box is small and light. It is
particularly valuable for portable use. Having to bring extra boxes on a
camping trip, and deal with the wiring between them, is aggravating.
Elecraft put paddles on the KX3 box, and a microphone in the KX2 for a
reason. For the home shack adding boxes is necessary to avoid any box
becoming too big or heavy. It also is necessary to make possible extensive
additions to functionality. A challenge with multiple boxes is to make sure
the functional assets in a given box are all available to global
applications that depend on resources spread among the boxes. The networking
architecture is key for this. 

 

High power amplifiers should probably be limited to less than max legal
power, but the overall architecture should include the components needed to
run more than one such amplifier in parallel. Each amp should be designed to
work with a separate controller, and have a minimum of front panel controls.
With multiple amp's available one should be able to quickly reallocate those
resources between a single or multiple virtual radios.

 

Graphic display resources. We should still have the option for a very
compact and portable user interface, such as the K3 without P3. When an
upgraded P3 is available, it should be able to display more information than
what is the case today. A new display box would make sense for even greater
capabilities (higher resolution external display compared to P3, as well as
bigger built-in screen options). Could be part of new control console. 

 

Central controllers. There should be multiple options. Some people may love
to work from a PC screen, and that might also suit the user who starts out
with just one box from the new architecture. Others may prefer a special
harware console, or working from a slightly upgraded K3 (or K4). 

 

73,

Erik K7TV

 

 

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[Elecraft] Linear thoughts

[Chuck Chandler]

I'm gonna quote a previous poster:

"...Needless to say, full perfect QSK at 110 WPM, zero IMD, and be able to
eliminate TX phase noise if used with some notable non-Elecraft
transmitters.  An LCD display for a trapezoid pattern to assure linearity
would be a plus but not essential since it's going to be perfectly linear
anyway..."

Never mind that, how about the Solar Flux Enhancer?  That's what we really
need...

73 de Chuck, WS1L

-- 


===
Chuck Chandler
chandler...@gmail.com
===
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[Elecraft] Linear thoughts

[Ron Durie]

Same size box as the KPA500, with the internal switching supply.
It could actually weigh less than the KPA500. 
This would be an achievement that would be unique to Elecraft and desirable.

The tuner would be in an external box, same width and depth as the amp.

If it could be done for twice the price ($4200) of the KPA500, it would have
some market. 

Ron Durie
WB4OOA
Elecraft K3s-Line IMD



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Re: [Elecraft] Linear thoughts

[Gary K9GS]

A lot of great suggestions but two I have not seen discussed:

1)  I really like the idea of a separate power supply simply because if 
the amp has to ever go in for service or be shipped it is a lot easier 
without a heavy power supply inside the cabinet. Just send the RF deck 
to Elecraft.


2)  I like the idea of an optional INTERNAL tuner.  Makes it nice and 
clean for those that need a tuner without a rats nest of Y cables, etc.  
If there is going to be an external tuner make it weatherproof so you 
can put it OUTSIDE.


I would love a 1.5K+ amp with a K3 type legal limit tuner I can put outside.



On 3/17/2017 6:59 PM, Fred Jensen wrote:
The "KPA1500" should look, feel, and behave like a KPA500.  OK, it can 
weigh a little more but should be liftable by your average age ham 
[oldish].  If you want to sell it widely, the "KAT1500" will also be 
needed since there are a whole bunch of folks who have less than 
monoband stacks on all bands, but it needs to be either an internal or 
external option, some won't need it.


Fans should make no noise whatsoever, even on high speed.  Rated for 
100% duty cycle to accommodate RTTY, JT65, and 75 meter AM looong 
transmissions.  It shouldn't cost more than 3 times a KPA500, same 
$/watt.  It should accept higher VSWR's than the KPA500, say maybe 
3:1?  A plus would be operation on a 20A 120V circuit and/or a sagging 
generator.  Needless to say, full perfect QSK at 110 WPM, zero IMD, 
and be able to eliminate TX phase noise if used with some notable 
non-Elecraft transmitters.  An LCD display for a trapezoid pattern to 
assure linearity would be a plus but not essential since it's going to 
be perfectly linear anyway.


Very tough market to enter, and potential customers can be so very 
fickle.


73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

PS:  Before blood pressures rise, paragraph 2 is a feeble [very] 
attempt at some humor based on passages on this list.  A deep breath 
or two would be best.  I believe paragraph 3 is true however, and I 
really want to see Elecraft stay in business.



On Fri,3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
Folks, if we did introduce a 1500 W solid state amp similar to our 
KPA500 in operation, what features etc would be important?




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--
73,

Gary K9GS

Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
CW Ops #1032   http://www.cwops.org



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Re: [Elecraft] Linear thoughts

[Bill Frantz]

Speaking as someone who has never operated above 100W, in other 
words -- I don't know what I really want:


  100% duty cycle for RTTY, FM etc.

  Make it possible to have the big, bulky, noisy items 
separable from the control head.


  Make it possible to locate the amp (& tuner) near the 
antenna(s) so the long coax run from the shack can be thin and 
unobtrusive -- think RG-58 or even RG-174. (XYL request)


  Wide range tuner option.

  Have tuner coexist well with autotuning antennas e.g. StepIR.

  Automatically switchable to multiple antennas based on band 
in use. (I've had up to 5 antennas on my 8 position remote switch.)


  Allow at least two coax connections to the radio (K3) to 
support diversity reception with remote switching.


  Low power operation on power limited bands.

  220V only is acceptable.

  Continue the legendary Elecraft usability and integration. 
i.e. Make it as easy to use as a 100W K3 on CW, digital, and voice.


  Give us a clean signal we can be proud of.

73 Bill AE6JV

On 3/17/17 at 10:06 AM, e...@elecraft.com (Eric Swartz - WA6HHQ, 
Elecraft) wrote:


Folks, if we did introduce a 1500 W solid state amp similar to 
our KPA500 in operation, what features etc would be important?

---
Bill Frantz| "I wish there was a knob on the TV to turn 
up the
408-356-8506   | intelligence.  There's a knob called 
"brightness", but

www.pwpconsult.com | it doesn't work. -- Gallagher

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Re: [Elecraft] Linear thoughts

[Fred Jensen]

The "KPA1500" should look, feel, and behave like a KPA500.  OK, it can 
weigh a little more but should be liftable by your average age ham 
[oldish].  If you want to sell it widely, the "KAT1500" will also be 
needed since there are a whole bunch of folks who have less than 
monoband stacks on all bands, but it needs to be either an internal or 
external option, some won't need it.


Fans should make no noise whatsoever, even on high speed.  Rated for 
100% duty cycle to accommodate RTTY, JT65, and 75 meter AM looong 
transmissions.  It shouldn't cost more than 3 times a KPA500, same 
$/watt.  It should accept higher VSWR's than the KPA500, say maybe 3:1?  
A plus would be operation on a 20A 120V circuit and/or a sagging 
generator.  Needless to say, full perfect QSK at 110 WPM, zero IMD, and 
be able to eliminate TX phase noise if used with some notable 
non-Elecraft transmitters.  An LCD display for a trapezoid pattern to 
assure linearity would be a plus but not essential since it's going to 
be perfectly linear anyway.


Very tough market to enter, and potential customers can be so very fickle.

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

PS:  Before blood pressures rise, paragraph 2 is a feeble [very] attempt 
at some humor based on passages on this list.  A deep breath or two 
would be best.  I believe paragraph 3 is true however, and I really want 
to see Elecraft stay in business.



On Fri,3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
Folks, if we did introduce a 1500 W solid state amp similar to our 
KPA500 in operation, what features etc would be important?




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Re: [Elecraft] Linear thoughts

[Gary Gregory]

Will take food stamps to feed my habit too?
:-)

On Mar 18, 2017 9:41 AM, "Roger Meadows"  wrote:

> I’ll be one of the first in line to buy one of the trade ins…..
>
> On Mar 17, 2017, at 6:09 PM, Bill Johnson  live.com>> wrote:
>
> I echo that or, offer a combiner second KPA500 to add to the existing!  I
> cannot safely lift over 40 lbs. but I can lift that twice!  Just not
> together.
>
> 72 & 73,
> Bill
> K9YEQ, FT'er for K2, KX1, KX3, KXPA100,  KAT500, W2, etc.
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Peter LaBissoniere
> Sent: Friday, March 17, 2017 1:02 PM
> To: Eric Swartz - WA6HHQ, Elecraft  @elecraft.com>>
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Linear thoughts
>
> KPA-500 trade-in program.
>
> Sent from my iPhone
>
> On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft <
> e...@elecraft.com> wrote:
>
> Interesting discussion.
>
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500
> in operation, what features etc would be important?
>
> 73,
> Eric
> /elecraft.com/
>
>
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Re: [Elecraft] Linear thoughts

[Roger Meadows]

I’ll be one of the first in line to buy one of the trade ins…..

On Mar 17, 2017, at 6:09 PM, Bill Johnson 
> wrote:

I echo that or, offer a combiner second KPA500 to add to the existing!  I 
cannot safely lift over 40 lbs. but I can lift that twice!  Just not together.

72 & 73,
Bill
K9YEQ, FT'er for K2, KX1, KX3, KXPA100,  KAT500, W2, etc.
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Peter 
LaBissoniere
Sent: Friday, March 17, 2017 1:02 PM
To: Eric Swartz - WA6HHQ, Elecraft >
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

KPA-500 trade-in program.

Sent from my iPhone

On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft 
> wrote:

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[Jim Brown]

All of this makes sense, but the modem may also contributing through 
poor circuit board layout. That's an important part of the difference 
between models of modems. And, of course, shielding.


In the olden days, all telco wiring WAS twisted pair, but far too much 
parallel conductor cable has come into the system. CAT5 and other cable 
for wired Ethernet is VERY VERY good at minimizing leakage of the 
differential signal from wiring, and pickup on that wiring to the 
differential pair. That's because it is VERY high quality twisted pairs, 
with many more turns per inch than traditional land line twisted pair.


So -- one of my primary recommendations for RFI to/from anything telco, 
including DSL, is to have telco provide CAT5 or better for the last 
1,000 ft or so of the run, and for a greater distance if possible.  Note 
that you may also be hearing your neighbors modems and leakage from 
their wiring. My second primary recommendation is to apply very good 
common mode chokes to every cable connected to the modem and to the 
telco wiring itself.


Most of this and a lot more is documented in 
http://k9yc.com/KillingReceiveNoise.pdf


Two other points -- you've already done the right thing by complaining 
to AT, but don't stop there. Contact ARRL's RFI group and get their 
help in dealing with AT And as others have noted, keep careful notes 
of all of your contacts with AT


73, Jim K9YC

On Fri,3/17/2017 12:37 PM, John Saxon via Elecraft wrote:

If I am reading it correctly, they are saying that the bands that Uverse uses for 
multiplexing includes 160,80 & 40 frequencies.  One of the contributors said that 
AT eventually upgraded his equipment, including replacing some twisted-pair 
cables with CAT5 cables, and it solved the problem.



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Re: [Elecraft] Linear thoughts

[Jim Brown]

On Fri,3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
Folks, if we did introduce a 1500 W solid state amp similar to our 
KPA500 in operation, what features etc would be important?


Full break-in, as clean as a good tube amp, legal limit through 6M with 
50% duty cycle (to support keydown modes like JT65, JT9). The general 
operational characteristics of a KPA500. A matching or integral antenna 
tuner. Light weight for airline travel -- IF the SMPS that would be 
required to do this was so quiet that it could not be heard on an 
antenna 20-30 ft away in a quiet location. :)


73, Jim K9YC


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Re: [Elecraft] Elecraft Linear

[Dave Cole]

I have a short review, and some heat/cool graphs of the ALS-1306 at:
http://nk7z.net/review-of-ameritrons-als-1306-amplifier/
I also have it connected to my K3, and it is now working great, follows 
the bands, etc.


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 03/17/2017 03:38 PM, Dennis W0JX via Elecraft wrote:

I am waiting for the right solid state linear to make the move away from tube 
amps. Here is a list of features I would like to have in order of importance:

1.) Power - at least 1200 watts out. I use an 40 year old SB-220 almost every 
day 80-10 for DXing. That power level is adequate for 80 meter DXing. I
 have separate amps for 160 and 6 but would like to see a 160-6 meter solid 
state amp. It does not need full power for RTTY as I usually run my
 amps at reduced power in that mode;

2.) Quiet - Fan and blower noise is a major distraction;

3.) SWR tolerance - up to 1.75 or 2 to 1 without an external tuner;

4.) Auto band switching - follow the rig;

5.) Remote control head and remote control ability;

6.) QSK - relatively unimportant, I use a foot switch;

7.) Price - competitive - I would rather buy American and spend my money for US 
equipment.

73 Dennis W0JX

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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[Dave Cole]

Begin a notebook today!  Keep track of everything you do and say, be 
kind, and always get the name of people you talk to.  Keep track of the 
bands frequencies, times, signal levels etc in that notebook.  You may 
need the information later in the event you contact the ARRL/FCC for 
further action if needed.


If you have access to a cheap SDR dongle radio see:
www.nk7z.net
for an article on how to document your RFI in a fully repeatable way.

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 03/17/2017 12:37 PM, John Saxon via Elecraft wrote:

Off topic, but perhaps others have had the same problem.
I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No problems with RFI 
until April of 2016.  All of a sudden RFI on 80,40(didn't try 160).  Been off these 
bands ever since, although all my buddies hang out on 40.  Have had AT out 4 
times, no help.
OK...I just found an AT Uverse user forum that discuss this very thing, same symptoms as 
mine, with a ham participating.  If I am reading it correctly, they are saying that the bands 
that Uverse uses for multiplexing includes 160,80 & 40 frequencies.  One of the 
contributors said that AT eventually upgraded his equipment, including replacing some 
twisted-pair cables with CAT5 cables, and it solved the problem.  I am supposed to get a call 
Monday from an AT guy who is familiar with this.  But I would like input from my Elecraft 
ham buddies.
Anyone out there experienced this before?  I don't think it is just me.  Anyone out 
there had this problem with AT Uverse and gotten it fixed?
Reply off-line if you wish, but I believe there may be several on this 
reflector who would find responses useful to them.
Thanks!JohnK5ENQ
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[Elecraft] Elecraft Linear

[Dennis W0JX via Elecraft]

I am waiting for the right solid state linear to make the move away from tube 
amps. Here is a list of features I would like to have in order of importance:

1.) Power - at least 1200 watts out. I use an 40 year old SB-220 almost every 
day 80-10 for DXing. That power level is adequate for 80 meter DXing. I 
 have separate amps for 160 and 6 but would like to see a 160-6 meter solid 
state amp. It does not need full power for RTTY as I usually run my 
 amps at reduced power in that mode;

2.) Quiet - Fan and blower noise is a major distraction;

3.) SWR tolerance - up to 1.75 or 2 to 1 without an external tuner;

4.) Auto band switching - follow the rig;

5.) Remote control head and remote control ability;

6.) QSK - relatively unimportant, I use a foot switch;

7.) Price - competitive - I would rather buy American and spend my money for US 
equipment.

73 Dennis W0JX  

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Re: [Elecraft] Who sells a small RF quiet solar charge controller?

[Dave Corsello]

I use a Genasun GV-5 and a Bioenno Power 4.5 Ah LiFePO4 battery to power 
my KX2.  I agree with Jim.  These components work great together--but 
with one exception:  I can't float the battery with the GV-5.  When the 
battery approaches full charge, its internal monitoring disconnects the 
battery from the circuit, causing the GV-5 to go to open circuit voltage 
of >= 18 V in full sunlight.  According to Elecraft, this would fry my 
radio.  So, as a work around, I use a DPDT switch to keep the solar 
panel and the load on separate circuits, selectively connecting one or 
the other to the controller.  This way, when the panel is connected and 
the controller signals an over voltage error (according to Bioenno, this 
doesn't harm the battery), I know that my battery is fully charged.  I 
then disconnect the panel and connect the load by flipping the switch.  
I don't mean to hijack Harry's thread--hopefully this post adds value 
for him.  But I wonder if there is any other combination of small, 
lightweight MPPT controller and LiFePO4 battery that would permit 
floating the battery.


On 3/17/2017 9:16 AM, elecraft-requ...@mailman.qth.net wrote:

Message: 15
Date: Thu, 16 Mar 2017 21:48:53 -0700
From: Jim Brown
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] Who sells a small RF quiet solar charge
controller?
Message-ID:
<8ce42df0-9c51-3043-1f0a-009ce8912...@audiosystemsgroup.com>
Content-Type: text/plain; charset=windows-1252; format=flowed

On Thu,3/16/2017 6:11 PM, Harry Yingst via Elecraft wrote:

I'm looking for a small RF quiet solar charge controller to charge a battery 
for my K2.

Genesun, Genasun, Genasun. They work very well and they are quiet. Make
sure you get the right model for the battery chemistry you're using.
They make models for lead acid, LiPO4, and Li Ion.

73, Jim K9YC


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Re: [Elecraft] [OT] Re: Traveling Power Supply for KX2?

[Josh Fiden]

On 3/17/2017 6:07 AM, Dave B via Elecraft wrote:

(Often low cost brittle plastic things from
the Far East.)

These are *all* low cost plastic things from the far east!

In this case, as the PSU is intended to be used with a device that has
exposed metallic parts connected to one side of the DC lead, I suspect
(I admit that I do not know for sure) that the AC input to that PSU
should include a safety ground, connected to (among other things) the
transformer inter-winding shield.
The safety regulations pertain to the power supply, not the target 
device. So, it doesn't matter whether the radio has exposed conductive 
parts. Safety ground on the AC line input is not necessary either, 
however, design requirements change if you don't have it. The concern is 
isolation between high voltage line input and low voltage output, and 
the result of component failures. This specifies clearance & creepage 
distances, insulation types, rating of capacitors which bridge across 
line or from line to load, etc.


[K9YC: I should say "protective earthing" rather than "ground" so I 
don't get in trouble for improper use of the term!]


The shield (winding or foil) between windings in the transformer is not 
for safety or necessarily connected to earth. This is for EMI and 
reduces common mode noise passing from primary to secondaries. An 
adapter like the KX33 would be flyback topology, so a transformer shield 
(if present) would be connected back to the primary switching MOSFET's 
source pin, not ground.


Incidentally, the safety regulations are pretty well harmonized between 
USA and most of Europe. For example, this type of power adapter falls 
under UL60950 which is identical to IEC60950.


73,
Josh W6XU

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Re: [Elecraft] Linear thoughts

[Bill Johnson]

I echo that or, offer a combiner second KPA500 to add to the existing!  I 
cannot safely lift over 40 lbs. but I can lift that twice!  Just not together.  

72 & 73,
Bill
K9YEQ, FT'er for K2, KX1, KX3, KXPA100,  KAT500, W2, etc. 
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Peter 
LaBissoniere
Sent: Friday, March 17, 2017 1:02 PM
To: Eric Swartz - WA6HHQ, Elecraft 
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

KPA-500 trade-in program.

Sent from my iPhone

> On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft 
>  wrote:
> 
> Interesting discussion.
> 
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
> operation, what features etc would be important?
> 
> 73,
> Eric
> /elecraft.com/
> 
> 
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> k...@wi.rr.com

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[Elecraft] Linear thoughts

[Erik Basilier]

To make this an Elecraft amp, it should be designed based on the best
architectural ideas from the Elecraft tradition. At this point of the
evolution, this must be seen at the system level, including the (never-to-be
?) "K4" and all other "K-line" components.

 

Why such a broad scope? The present chaining together of control cables is
showing its limits. When major features are to be introduced, maximum
flexibility is achieved when control signals from A to B don't have to
travel through multiple boxes. A client-server approach is appropriate,
maybe using Ethernet as backbone. Won't this shut out the owners of
non-Elecraft equipment? No, each box will still have a a more conventional
control interface. Once a user adds more than one Elecraft box, fast
intercommunication between those boxes may provide features not practical if
the second box were of a different brand.

 

Key Elecraft philosophies to build on. Value retention. No need to buy a
whole new rig to add functionality. Modularity. Today we can add options
inside the K3(s). That is great as long as the box is small and light. It is
particularly valuable for portable use. Having to bring extra boxes on a
camping trip, and deal with the wiring between them, is aggravating.
Elecraft put paddles on the KX3 box, and a microphone in the KX2 for a
reason. For the home shack adding boxes is necessary to avoid any box
becoming too big or heavy. It also is necessary to make possible extensive
additions to functionality. A challenge with multiple boxes is to make sure
the functional assets in a given box are all available to global
applications that depend on resources spread among the boxes. The networking
architecture is key for this. 

 

High power amplifiers should probably be limited to less than max legal
power, but the overall architecture should include the components needed to
run more than one such amplifier in parallel. Each amp should be designed to
work with a separate controller, and have a minimum of front panel controls.
With multiple amp's available one should be able to quickly reallocate those
resources between a single or multiple virtual radios.

 

Graphic display resources. We should still have the option for a very
compact and portable user interface, such as the K3 without P3. When an
upgraded P3 is available, it should be able to display more information than
what is the case today. A new display box would make sense for even greater
capabilities (higher resolution external display compared to P3, as well as
bigger built-in screen options). Could be part of new control console. 

 

Central controllers. There should be multiple options. Some people may love
to work from a PC screen, and that might also suit the user who starts out
with just one box from the new architecture. Others may prefer a special
harware console, or working from a slightly upgraded K3 (or K4). 

 

73,

Erik K7TV

 

 

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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[John Saxon via Elecraft]

We supposedly have the latest modem.  When I "suddenly" had RFI it was shortly 
after going from an older modem to this one...weird.
Hopefully Monday I will hear from AT with a solution (for them to fix).  
Sounds like they should have a whole file on this issue.
Thanks,JohnK5ENQ

  From: Guy Olinger K2AV 
 To: John Saxon  
Cc: Elecraft Reflector 
 Sent: Friday, March 17, 2017 4:19 PM
 Subject: Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse
   
I had this problem in spades especially 160. In the end, after some number of 
repairs to AT cabling, etc, the replacement of a 2Wire 3800 gateway box with 
a 3801 killed it dead.

IF you have a 3800, it will need to be replaced, although the sudden appearance 
seems to sound like something suddenly gone wrong. Make sure all the little 
telephone plugs get exercised to clean them up and see if it "suddenly" goes 
away.

In any event back in 2011 I was involved in a very careful staged repair, item 
by item to see what items made any difference. From my situation and about a 
dozen parallel similar extended careful replacement exercises, AT seems to 
have it solved and the solution is in their "book".

So just let them do their thing.

73 and good luck,

Guy K2AV 
   
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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[John Saxon via Elecraft]

Yep, our input from them is on twisted pair.  May have to go back to Comcast.  
I am supposed to hear from a knowledgeable AT guy Monday.
Thanks,JohnK5ENQ


  From: Mike Flowers 
 To: 'brian' ; elecraft@mailman.qth.net 
 Sent: Friday, March 17, 2017 3:38 PM
 Subject: Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse
   
I had similar RFI issues with AT Uverse equipment, both on RX and TX.  

I went with Comcast and have no RFI issues with them.  Nearly our entire
neighborhood is Comcast.  AT tried to deliver Uverse here via 50-year old
twisted pairs and it was a mess.  

- 73 and good DX de Mike, K6MKF, IDXC 2017 Committee

> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
brian
> Sent: Friday, March 17, 2017 1:11 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse
> 
> These Uverse RFI problems that others reported made me choose COMCAST
> when I moved.  I guess you are pretty much locked in.
> 
> I hate COMCAST but trying to solve these problems was considered more of a
> hassle with the possibility of no solution.
> 
> The other issue is some reported that the Uverse modems generated
significant
> RFI on receive.
> 
> 73 de Brian/K3KO
> 
> 
> 
> On 3/17/2017 19:53 PM, Fred Moore wrote:
> > keep everyone filled in on the progress.. Fred
> >
> > Fred Moore
> > email:  f...@fmeco.com
> >          wd8...@gmail.com
> > Phone:  (321) 217-8699
> >
> > On 3/17/17 3:37 PM, John Saxon via Elecraft wrote:
> >> Off topic, but perhaps others have had the same problem.
> >> I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No
problems
> with RFI until April of 2016.  All of a sudden RFI on 80,40(didn't try
160).  Been
> off these bands ever since, although all my buddies hang out on 40.  Have
had
> AT out 4 times, no help.
> >> OK...I just found an AT Uverse user forum that discuss this very
thing,
> same symptoms as mine, with a ham participating.  If I am reading it
correctly,
> they are saying that the bands that Uverse uses for multiplexing includes
160,80
> & 40 frequencies.  One of the contributors said that AT eventually
upgraded
> his equipment, including replacing some twisted-pair cables with CAT5
cables,
> and it solved the problem.  I am supposed to get a call Monday from an
AT
> guy who is familiar with this.  But I would like input from my Elecraft
ham
> buddies.
> >> Anyone out there experienced this before?  I don't think it is just me.
Anyone
> out there had this problem with AT Uverse and gotten it fixed?
> >> Reply off-line if you wish, but I believe there may be several on this
reflector
> who would find responses useful to them.
> >> Thanks!JohnK5ENQ
> >>
> _
> _
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> >> f...@fmeco.com
> >
> >
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> >
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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[John Saxon via Elecraft]

Thanks, Brian.  We do have COMCAST in our area, but we had bad luck with them 
before.  May have to switch back.
--JohnK5ENQ

  From: brian 
 To: elecraft@mailman.qth.net 
 Sent: Friday, March 17, 2017 3:11 PM
 Subject: Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse
   
These Uverse RFI problems that others reported made me choose COMCAST 
when I moved.  I guess you are pretty much locked in.

I hate COMCAST but trying to solve these problems was considered more of 
a hassle with the possibility of no solution.

The other issue is some reported that the Uverse modems generated 
significant RFI on receive.

73 de Brian/K3KO



On 3/17/2017 19:53 PM, Fred Moore wrote:
> keep everyone filled in on the progress.. Fred
>
> Fred Moore
> email:  f...@fmeco.com
>          wd8...@gmail.com
> Phone:  (321) 217-8699
>
> On 3/17/17 3:37 PM, John Saxon via Elecraft wrote:
>> Off topic, but perhaps others have had the same problem.
>> I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No problems 
>> with RFI until April of 2016.  All of a sudden RFI on 80,40(didn't try 160). 
>>  Been off these bands ever since, although all my buddies hang out on 40.  
>> Have had AT out 4 times, no help.
>> OK...I just found an AT Uverse user forum that discuss this very thing, 
>> same symptoms as mine, with a ham participating.  If I am reading it 
>> correctly, they are saying that the bands that Uverse uses for multiplexing 
>> includes 160,80 & 40 frequencies.  One of the contributors said that AT 
>> eventually upgraded his equipment, including replacing some twisted-pair 
>> cables with CAT5 cables, and it solved the problem.  I am supposed to get a 
>> call Monday from an AT guy who is familiar with this.  But I would like 
>> input from my Elecraft ham buddies.
>> Anyone out there experienced this before?  I don't think it is just me.  
>> Anyone out there had this problem with AT Uverse and gotten it fixed?
>> Reply off-line if you wish, but I believe there may be several on this 
>> reflector who would find responses useful to them.
>> Thanks!JohnK5ENQ
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[Elecraft] K3 Filters for sale

[Glenn Haffly]

I have 2 KFL3A 250 filters for sale. Bought new never used and in original
packaging. Both are 8 pole Inrad.
Will sell both for $325 and I will ship.

Glenn K5ZE


Virus-free.
www.avast.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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[Elecraft] Linear thoughts

[john]

Perfect suggestion Andy! The 70 pound luggage days are long gone.

John KK9A


From: Andrew Faber andrewfaber at ymail.com 
Fri Mar 17 13:18:39 EDT 2017

Eric,
Hallelujah!  First acknowledgment of such a possibility!  I vote to put a 
second amp module in the RF Deck (i.e., an RF deck that is the same as the 
total size of the KPA500) and have a separate switching supply in another 
box. 1200-1300 watts would be a sweet spot if 1.5K is a problem.  Shoot for 
30 pounds or under.
73, andy ae6y (KPA500 ser. 77).

-Original Message- 
From: Eric Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 10:06 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/

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Re: [Elecraft] Linear thoughts

[Carl Yaffey1]

I second that! Plus trade in for my KPA500 and KAT500.
K8NU

> On Mar 17, 2017, at 3:54 PM, Bert Garcia N8NN  wrote:
> 
> My wish list for a 1500 watt Elecraft linear:
> 
> Separate power supply so I can lift it one piece at a time.
> Light weight power supply.
> Wide-range automatic antenna tuner with memory.
> Quite fans, low noise.
> Solid-state QSK.
> 160 - 6 meters.
> Auto band change by RF sensing.
> Auto band change from the transceiver.
> Power limited on 30/60 meters.
> 11 meters blocked.
> Multiple antenna jacks with auto selection.
> Built-in SWR and watt meters.
> Antenna selection and SWR/watt meters work when amp is off.
> Two radio inputs.
> Elecraft styling.
> Remote control capability via LAN.
> 1500 watts no time limit.
> Auto AC voltage selection on power supply.
> 
> Bert N8NN
> 
> 

Carl Yaffey  K8NU
Recording studio.
cyaffeyno_s...@gmail.com 
614 268 6353, Columbus OH
http://www.carl-yaffey.com
http://www.grassahol.com
http://www.bluesswing.com

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Re: [Elecraft] Preamp 2 and upcoming F/W

[volker.de...@t-online.de]

Good news, Wayne.

TNX

Volker



-Original-Nachricht-
Betreff: Re: [Elecraft] Preamp 2 and upcoming F/W
Datum: 2017-03-17T20:06:10+0100
Von: "Wayne Burdick" 
An: "volker.de...@t-online.de" 

Still working on that.

Wayne

On Mar 17, 2017, at 1:17 AM, volker.de...@t-online.de wrote:

> 
> 
> 
> 
> -Original-Nachricht-
> Betreff: AW: [Elecraft] Preamp 2 and upcoming F/W
> Datum: 2017-03-17T09:10:34+0100
> Von: "volker.de...@t-online.de" 
> An: "Wayne Burdick" 
> 
> Will there be S-meter correction for Pre 2 in ABS mode?
> 
> 73
> 
> Volker
> 
> DL4ZBG
> 
> 
> 
> -Original-Nachricht-
> Betreff: Re: [Elecraft] Preamp 2 and upcoming F/W
> Datum: 2017-03-17T02:45:45+0100
> Von: "Wayne Burdick" 
> An: "Dauer, Edward" 
> 
> Hi Ted,
> 
> Preamp 2 is in fact the one on the KXV3B. So any K3 running the new firmware 
> will allow preamp 2 use on 17 and 15 meters. The NF improvement is 
> significant (3 and 6 dB, respectively).
> 
> The firmware is being field tested now.
> 
> 73,
> Wayne
> N6KR
> 
> 
> On Mar 16, 2017, at 6:30 PM, "Dauer, Edward"  wrote:
> 
>> Wayne’s post – which I accidentally erased – noted that the LNA “Preamp 2” 
>> will soon be accessible for 15 and 17 meters through a F/W release. 
>> 
>> Just to be sure, does anyone know if that will that include the preamp in 
>> the KXV3B? 
>> 
>> I have so far passed up ordering a KXV3B because the Manual says its preamp 
>> can be used on 12-10-6, whereas my outboard PR6-10 adds a good deal of gain 
>> on 15 as well.
>> 
>> Ted, KN1CBR
>> 
>> 
>> 
>> 
> 
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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[Guy Olinger K2AV]

I had this problem in spades especially 160. In the end, after some number
of repairs to AT cabling, etc, the replacement of a 2Wire 3800 gateway
box with a 3801 killed it dead.

IF you have a 3800, it will need to be replaced, although the sudden
appearance seems to sound like something suddenly gone wrong. Make sure all
the little telephone plugs get exercised to clean them up and see if it
"suddenly" goes away.

In any event back in 2011 I was involved in a very careful staged repair,
item by item to see what items made any difference. From my situation and
about a dozen parallel similar extended careful replacement exercises, AT
seems to have it solved and the solution is in their "book".

So just let them do their thing.

73 and good luck,

Guy K2AV


On Fri, Mar 17, 2017 at 3:37 PM, John Saxon via Elecraft <
elecraft@mailman.qth.net> wrote:
> Off topic, but perhaps others have had the same problem.
> I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No
problems with RFI until April of 2016.  All of a sudden RFI on 80,40(didn't
try 160).  Been off these bands ever since, although all my buddies hang
out on 40.  Have had AT out 4 times, no help.
> OK...I just found an AT Uverse user forum that discuss this very thing,
same symptoms as mine, with a ham participating.  If I am reading it
correctly, they are saying that the bands that Uverse uses for multiplexing
includes 160,80 & 40 frequencies.  One of the contributors said that AT
eventually upgraded his equipment, including replacing some twisted-pair
cables with CAT5 cables, and it solved the problem.  I am supposed to get a
call Monday from an AT guy who is familiar with this.  But I would like
input from my Elecraft ham buddies.
> Anyone out there experienced this before?  I don't think it is just me.
Anyone out there had this problem with AT Uverse and gotten it fixed?
> Reply off-line if you wish, but I believe there may be several on this
reflector who would find responses useful to them.
> Thanks!JohnK5ENQ
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-- 
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Re: [Elecraft] Linear thoughts

[Dan Baker]

If you develop a internal or external tuner for it, please include a lock
switch. This would allow the tuning solution to be locked in place unlike
the KAT500 manual switch.

Thanks,Dan

-- 
KM6CQ
Dan Baker
www.km6cq.com

Don't sacrifice your hobby
for the right house.
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Re: [Elecraft] Linear thoughts

[Edward R Cole]

Eric (Wayne):

I'm not a potential customer (price/advantage ratio too high for my 
casual HF usage).


But having 1200-1500 at 6m would see a potential market in the 6m-eme 
community for those with ability to pay.  6m-eme is increasing 
quickly in light of low solar cycles being projected (how WAS/DXCC on 
6m is done these days).  I am fortunate to have a 1000w surplus 
Harris TV linear (ch.2) running on 6m, but not all are 
builder-engineers so ready-to-play would attract quite a few (plus 
operating down on HF).


My most recent Elecraft acquisition was the KXPA100 usable by both my 
K3/10 and KX3.  I have the KXAT100 arriving this week.  That is 
adequate for both home and road activity.


If I ever decide that I need HF QRO I will probably build my own 
LDMOS from several kits available in the market.  I still have a 300w 
80-10m CCI linear that sits collecting dust after getting the KXPA100.


Not sure what is available in LDMOS but a dual KXPA750 might find 
good acceptance as one could run 750-1500w.  I have seen this done on 
2m with two 1200w LDMOS run at 750w conservatively to supply a 
combined output of 1500w (but it is not cheap).


I'm going to be roving America during the summer over the new few 
years with my KX3 + KXPA100 (we pick up the trailer in Seattle in May).


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


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Re: [Elecraft] Linear thoughts

[Clay Autery]

I'm firmly in the component or modular engineering camp.  All things
equal, less integration of function trumps integration if its a choice.

The other guys have already hit on most of the big items...  Here's what
is important to me.

1500+W (Prefer something built to 2-3K Watts capable and then throttled
back...  no running on the bleeding edge.
Clean  Like really clean...
Separate power supply  OR AT MINIMUM, the option to choose to use an
external power supply so I can choose either the one Elecraft supplies
or provide my own  heavy linear at home and the option for a lighter
travel supply.
 (Ideally, a separate Elecraft PS that obeys the packaging rules...
Try to integrate the packaging to fit the K3s, et al footprint... 
Height being the adjustable dimension to meet volume requirements.
Thermal design from the ground up not as an afterthought (patchwork and
band-aids not welcome).

Seriously consider designing in an easily made mod that will allow other
drive profiles for when the current limit is eliminated.

Don't want an internal tuner  want a KAT1500 like external tuner...

Long, long list of considered opinions on almost any conceivable
spec/feature and a logical argument for/against inclusion in the design
Simply ask the questions...

73,

__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 3/17/2017 12:06 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
> Interesting discussion.
>
> Folks, if we did introduce a 1500 W solid state amp similar to our
> KPA500 in operation, what features etc would be important?
>
> 73,
> Eric
> /elecraft.com/
>
>
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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[Mike Flowers]

I had similar RFI issues with AT Uverse equipment, both on RX and TX.  

I went with Comcast and have no RFI issues with them.  Nearly our entire
neighborhood is Comcast.   AT tried to deliver Uverse here via 50-year old
twisted pairs and it was a mess.  

- 73 and good DX de Mike, K6MKF, IDXC 2017 Committee

> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
brian
> Sent: Friday, March 17, 2017 1:11 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse
> 
> These Uverse RFI problems that others reported made me choose COMCAST
> when I moved.  I guess you are pretty much locked in.
> 
> I hate COMCAST but trying to solve these problems was considered more of a
> hassle with the possibility of no solution.
> 
> The other issue is some reported that the Uverse modems generated
significant
> RFI on receive.
> 
> 73 de Brian/K3KO
> 
> 
> 
> On 3/17/2017 19:53 PM, Fred Moore wrote:
> > keep everyone filled in on the progress.. Fred
> >
> > Fred Moore
> > email:  f...@fmeco.com
> >  wd8...@gmail.com
> > Phone:  (321) 217-8699
> >
> > On 3/17/17 3:37 PM, John Saxon via Elecraft wrote:
> >> Off topic, but perhaps others have had the same problem.
> >> I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No
problems
> with RFI until April of 2016.  All of a sudden RFI on 80,40(didn't try
160).  Been
> off these bands ever since, although all my buddies hang out on 40.  Have
had
> AT out 4 times, no help.
> >> OK...I just found an AT Uverse user forum that discuss this very
thing,
> same symptoms as mine, with a ham participating.  If I am reading it
correctly,
> they are saying that the bands that Uverse uses for multiplexing includes
160,80
> & 40 frequencies.  One of the contributors said that AT eventually
upgraded
> his equipment, including replacing some twisted-pair cables with CAT5
cables,
> and it solved the problem.  I am supposed to get a call Monday from an
AT
> guy who is familiar with this.  But I would like input from my Elecraft
ham
> buddies.
> >> Anyone out there experienced this before?  I don't think it is just me.
Anyone
> out there had this problem with AT Uverse and gotten it fixed?
> >> Reply off-line if you wish, but I believe there may be several on this
reflector
> who would find responses useful to them.
> >> Thanks!JohnK5ENQ
> >>
> _
> _
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> >> email list: http://www.qsl.net/donate.html Message delivered to
> >> f...@fmeco.com
> >
> >
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> > als...@comcast.net
> >
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Re: [Elecraft] Linear thoughts

[Scott via Elecraft]

 
As long as we're hoping how about a swappable input board to allow it  to 
be driven to full output by a KX3 as soon as the rule changes. Ditto for the  
KPA500..that's when I'll buy mine.
 
Or at least allow an experimenter to easily modify his own without  voiding 
a warranty if the rule doesn't change
 
Scott ka9p

 
 
In a message dated 3/17/2017 3:01:02 P.M. Central Daylight Time,  
n...@earthlink.net writes:

My wish  list for a 1500 watt Elecraft linear:

Separate power supply so I can  lift it one piece at a time.
Light weight power supply.
Wide-range  automatic antenna tuner with memory.
Quite fans, low noise.
Solid-state  QSK.
160 - 6 meters.
Auto band change by RF sensing.
Auto band change  from the transceiver.
Power limited on 30/60 meters.
11 meters  blocked.
Multiple antenna jacks with auto selection.
Built-in SWR and  watt meters.
Antenna selection and SWR/watt meters work when amp is  off.
Two radio inputs.
Elecraft styling.
Remote control capability  via LAN.
1500 watts no time limit.
Auto AC voltage selection on power  supply.

Bert N8NN


-Original Message-
From:  Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric
Swartz  - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To:  elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear  thoughts

Interesting discussion.

Folks, if we did introduce a  1500 W solid state amp similar to our KPA500 
in
operation, what features  etc would be  important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Wes Stewart]

The imaginary transceiver to match the imaginary amplifier.

On 3/17/2017 11:21 AM, Wayne Burdick wrote:

On Mar 17, 2017, at 11:14 AM, Wes Stewart  wrote:


Three times the power, one-third the cost?

Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 SWR 
(option?), optional separate power supply, quieter cooling. Bigger box to match 
K4.

The what?



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Re: [Elecraft] Linear thoughts

[John Fritze]

Dear Eric,

IF Elecraft was to introduce a 1500W amp, I would love it to interface as
well as the KPA500 does now.  If I could have anything additional, my first
choice would be to have a tuner inside the box, that can either be used or
bypassed as necessary.

The ability to be run on either 110V or 220V US, ( and European voltages
).  Ideally a multi-tap transformer that would allow locations with voltage
sag to still operate the amp.  For example on my boat I have a multitap
isolation transformer that allows voltages to be adjusted to 110V from 90V
and up to 250V simply by changing taps.

-- 
John Fritze Jr
K2QY
k...@arrl.net
ACACES president 2014
ARES ENY DEC Northern District
Hudson Div. Asst. Director
Twitter: @k2qy
401 261 4996 (cell)
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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[brian]

These Uverse RFI problems that others reported made me choose COMCAST 
when I moved.  I guess you are pretty much locked in.


I hate COMCAST but trying to solve these problems was considered more of 
a hassle with the possibility of no solution.


The other issue is some reported that the Uverse modems generated 
significant RFI on receive.


73 de Brian/K3KO



On 3/17/2017 19:53 PM, Fred Moore wrote:

keep everyone filled in on the progress.. Fred

Fred Moore
email:  f...@fmeco.com
 wd8...@gmail.com
Phone:  (321) 217-8699

On 3/17/17 3:37 PM, John Saxon via Elecraft wrote:

Off topic, but perhaps others have had the same problem.
I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No problems with RFI 
until April of 2016.  All of a sudden RFI on 80,40(didn't try 160).  Been off these 
bands ever since, although all my buddies hang out on 40.  Have had AT out 4 
times, no help.
OK...I just found an AT Uverse user forum that discuss this very thing, same symptoms as 
mine, with a ham participating.  If I am reading it correctly, they are saying that the bands 
that Uverse uses for multiplexing includes 160,80 & 40 frequencies.  One of the 
contributors said that AT eventually upgraded his equipment, including replacing some 
twisted-pair cables with CAT5 cables, and it solved the problem.  I am supposed to get a call 
Monday from an AT guy who is familiar with this.  But I would like input from my Elecraft 
ham buddies.
Anyone out there experienced this before?  I don't think it is just me.  Anyone out 
there had this problem with AT Uverse and gotten it fixed?
Reply off-line if you wish, but I believe there may be several on this 
reflector who would find responses useful to them.
Thanks!JohnK5ENQ
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Re: [Elecraft] Linear thoughts

[brian]

You forgot antenna tune should follow K3 frequency like KAT500 can so 
that it can pre-tune.

73 de Brian/K3KO

On 3/17/2017 19:54 PM, Bert Garcia N8NN wrote:

My wish list for a 1500 watt Elecraft linear:

Separate power supply so I can lift it one piece at a time.
Light weight power supply.
Wide-range automatic antenna tuner with memory.
Quite fans, low noise.
Solid-state QSK.
160 - 6 meters.
Auto band change by RF sensing.
Auto band change from the transceiver.
Power limited on 30/60 meters.
11 meters blocked.
Multiple antenna jacks with auto selection.
Built-in SWR and watt meters.
Antenna selection and SWR/watt meters work when amp is off.
Two radio inputs.
Elecraft styling.
Remote control capability via LAN.
1500 watts no time limit.
Auto AC voltage selection on power supply.

Bert N8NN


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric
Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Bert Garcia N8NN]

My wish list for a 1500 watt Elecraft linear:

Separate power supply so I can lift it one piece at a time.
Light weight power supply.
Wide-range automatic antenna tuner with memory.
Quite fans, low noise.
Solid-state QSK.
160 - 6 meters.
Auto band change by RF sensing.
Auto band change from the transceiver.
Power limited on 30/60 meters.
11 meters blocked.
Multiple antenna jacks with auto selection.
Built-in SWR and watt meters.
Antenna selection and SWR/watt meters work when amp is off.
Two radio inputs.
Elecraft styling.
Remote control capability via LAN.
1500 watts no time limit.
Auto AC voltage selection on power supply.

Bert N8NN


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric
Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

[Fred Moore]

keep everyone filled in on the progress.. Fred

Fred Moore
email:  f...@fmeco.com
wd8...@gmail.com
Phone:  (321) 217-8699

On 3/17/17 3:37 PM, John Saxon via Elecraft wrote:
> Off topic, but perhaps others have had the same problem.
> I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No problems 
> with RFI until April of 2016.  All of a sudden RFI on 80,40(didn't try 160).  
> Been off these bands ever since, although all my buddies hang out on 40.  
> Have had AT out 4 times, no help.
> OK...I just found an AT Uverse user forum that discuss this very thing, 
> same symptoms as mine, with a ham participating.  If I am reading it 
> correctly, they are saying that the bands that Uverse uses for multiplexing 
> includes 160,80 & 40 frequencies.  One of the contributors said that AT 
> eventually upgraded his equipment, including replacing some twisted-pair 
> cables with CAT5 cables, and it solved the problem.  I am supposed to get a 
> call Monday from an AT guy who is familiar with this.  But I would like 
> input from my Elecraft ham buddies.
> Anyone out there experienced this before?  I don't think it is just me.  
> Anyone out there had this problem with AT Uverse and gotten it fixed?
> Reply off-line if you wish, but I believe there may be several on this 
> reflector who would find responses useful to them.
> Thanks!JohnK5ENQ
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Re: [Elecraft] (Elecraft) Linear thoughts

[Thomas Donohue]

Hi to all:

I had the strong suspicion based on what I heard an Elecraft rep say at last 
years Dayton Hamvention that a 1500W linear was being worked on; so, I was not 
surprised by Eric's request. My input is as follows: (1) 1500W+ output, key 
down; (2) light weight (30 lbs or less); if the 30lbs is not doable in a single 
unit, then the power supply could be put in a separate box; (3) capability to 
support two transceivers, much like the current Yaesu Quadra; and (4) full 
computer control of amp and transceiver(s) I'll leave the detailed suggestions 
to those much more qualified than I to make. Finally, I will purchase one at 
Dayton if it is available, sight unseen, based on the Elecraft history of 
producing high quality products, and most importantly, updating and supporting 
them throughout their life cycle. Thanks Elecraft for all that you do.

Best 73,
Tom/W1QU


Sent from my iPad
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[Elecraft] OT: RFI problem on 80,40 with AT Uverse

[John Saxon via Elecraft]

Off topic, but perhaps others have had the same problem.
I have a K3/100 + ATU (ser#3542), purchased as a kit in 2009.  No problems with 
RFI until April of 2016.  All of a sudden RFI on 80,40(didn't try 160).  Been 
off these bands ever since, although all my buddies hang out on 40.  Have had 
AT out 4 times, no help.
OK...I just found an AT Uverse user forum that discuss this very thing, same 
symptoms as mine, with a ham participating.  If I am reading it correctly, they 
are saying that the bands that Uverse uses for multiplexing includes 160,80 & 
40 frequencies.  One of the contributors said that AT eventually upgraded his 
equipment, including replacing some twisted-pair cables with CAT5 cables, and 
it solved the problem.  I am supposed to get a call Monday from an AT guy who 
is familiar with this.  But I would like input from my Elecraft ham buddies.
Anyone out there experienced this before?  I don't think it is just me.  Anyone 
out there had this problem with AT Uverse and gotten it fixed?
Reply off-line if you wish, but I believe there may be several on this 
reflector who would find responses useful to them.
Thanks!JohnK5ENQ
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Re: [Elecraft] Linear thoughts

[Mitch Wolfson , DJØQN / K7DX]

Hi Eric,

Thanks for opening up this can of worms ;-)

I haven't been following the discussion until now, but my suggestion 
comes from another angle: make any new amplifier very remotable.


This means the following:
- Have API's that support complete remote control, also available to 
other software and hardware developers
- If possible, allow remote power on via a remote command and not by 
providing a voltage to pins (like the old SPE 1K-FA did)

- Do not use (only) USB control, since this is no good for remoting
- Have a true serial port for serial port servers and other legacy devices
- A bonus would be an embedded serial port server, such as the Lantronix 
XPort (OM Power offers this as an option) 
https://www.lantronix.com/products/xport/
- Another added bonus would be an embedded web server with a control 
interface, such as that offered on the RemoteRig RC-1216H 
http://www.remoterig.com/wp/?page_id=1010


Having helped to install dozens of amplifiers for remoting, I can say 
that this feature set would put a new 1500w amplifier on the top of the 
remote station heap if reasonably priced.


73,
Mitch DJ0QN / K7DX

Mitch Wolfson DJØQN / K7DX
10285 Boca Cir, Naples, FL 34109
Skype: mitchwo
USA: Home:+1-239-221-9600 - Mobile:+1-424-288-9171
Germany: Home:+49 89 32152700 - Mobile:+49 172 8374436

On 17.03.2017 13:06, Eric Swartz - WA6HHQ, Elecraft wrote:

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our 
KPA500 in operation, what features etc would be important?


73,
Eric
/elecraft.com/


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Re: [Elecraft] Preamp 2 and upcoming F/W

[Wayne Burdick]

Still working on that.

Wayne

On Mar 17, 2017, at 1:17 AM, volker.de...@t-online.de wrote:

> 
> 
> 
> 
> -Original-Nachricht-
> Betreff: AW: [Elecraft] Preamp 2 and upcoming F/W
> Datum: 2017-03-17T09:10:34+0100
> Von: "volker.de...@t-online.de" 
> An: "Wayne Burdick" 
> 
> Will there be S-meter correction for Pre 2 in ABS mode?
> 
> 73
> 
> Volker
> 
> DL4ZBG
> 
> 
> 
> -Original-Nachricht-
> Betreff: Re: [Elecraft] Preamp 2 and upcoming F/W
> Datum: 2017-03-17T02:45:45+0100
> Von: "Wayne Burdick" 
> An: "Dauer, Edward" 
> 
> Hi Ted,
> 
> Preamp 2 is in fact the one on the KXV3B. So any K3 running the new firmware 
> will allow preamp 2 use on 17 and 15 meters. The NF improvement is 
> significant (3 and 6 dB, respectively).
> 
> The firmware is being field tested now.
> 
> 73,
> Wayne
> N6KR
> 
> 
> On Mar 16, 2017, at 6:30 PM, "Dauer, Edward"  wrote:
> 
>> Wayne’s post – which I accidentally erased – noted that the LNA “Preamp 2” 
>> will soon be accessible for 15 and 17 meters through a F/W release. 
>> 
>> Just to be sure, does anyone know if that will that include the preamp in 
>> the KXV3B? 
>> 
>> I have so far passed up ordering a KXV3B because the Manual says its preamp 
>> can be used on 12-10-6, whereas my outboard PR6-10 adds a good deal of gain 
>> on 15 as well.
>> 
>> Ted, KN1CBR
>> 
>> 
>> 
>> 
> 
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Re: [Elecraft] Linear thoughts

[Chris Tate - N6WM]

Some bullet points.  take the best of what is emerging and improve it..


-2 inputs and multiple antenna ports and enough isolation to support SO2R OOB 
with 1 devices.   (flex amp).  less devices, shack simplification and value...

-ability to control device over Ethernet via remote without connecting  via a 
serial interface, but keep the serial interface for legacy use (flex amp) the 
future is on ethernet.

-some kind of ability to manage mismatches, probably a tuner either outboard 
like a kat500 or inboard would be 
better.  one that is more resilient than the expert would be a market 
differentiator(expert amps but needs improvement)  This would make it a killer 
device.

Thats what comes to mind short term.








From: Elecraft [elecraft-boun...@mailman.qth.net] on behalf of Wayne Burdick 
[n...@elecraft.com]
Sent: Friday, March 17, 2017 11:21 AM
To: Wes Stewart
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

On Mar 17, 2017, at 11:14 AM, Wes Stewart  wrote:

> Three times the power, one-third the cost?
>
> Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 
> SWR (option?), optional separate power supply, quieter cooling. Bigger box to 
> match K4.

The what?


>
> Wes  N7WS
>
> On 3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
>> Interesting discussion.
>>
>> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
>> operation, what features etc would be important?
>>
>> 73,
>> Eric
>> /elecraft.com/



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[Elecraft] win4k3+hrd+dm780

[buddy s]

i have win4k3 on a win10 laptop. using com0com for port sharing.   one usb
port to the k3, another usb port to the signalink.  win4k3 is ok with hrd,
but dm780 is problematic.  when i try to send cw, i get the red led on the
signalink, the red tx led on the k3, but no audio to the k3.

any thoughts?

thanks

73 de
W3BS, Buddy Spiegel
​
​​
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[Elecraft] R: Re: Linear thoughts

[glcazz...@alice.it]

Great qsk with pin diodes, no noise, fast atu, no switching power supply.If 
possible not high price. 
Nothing more... ;)Ian IK4EWX   K3S and ex Henry 2KD and now owner 
of  a new ACOM 1000.




Messaggio originale
Da: e...@elecraft.com
Data: 17-mar-2017 18.06
A: 
Ogg: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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[Elecraft] New release of Win4K3Suite

[Tom]

Hello,
There is a new release of Win4K3Suite.  This release offers a bug fix that 
showed up using DXLab Commander when you switched from a band that did not use 
the sub-receiver to one that does.  There was an excessive delay.  In the 
process, additional performance enhancements were made to the third party 
virtual radios in Win4K3Suite.
One of the useful features of Win4K3Suite is that it interfaces to all 3rd 
party logging and digital mode programs such as HRDLogbook, DX Keeper, NAP3, 
N3FJP, N1MM+, FLDigi, MIXW as well as hardware devices such as the K3/0, the 
Pig Knob and various antenna tuners.  In order to understand how to do this, 
there is now a video on youtube that gives clear instructions on using the 
virtual port management facilities of Win4K3Suite:  You can access it at

https://www.youtube.com/watch?v=1jh6IS0S1dE=4s

There is no need for LPBridge, and you can wish you can even continue to use 
NAP3 if you prefer that interface.  You can read a review about this here: 
http://www.eham.net/reviews/detail/11214
Please check out the 30 day trial at va2fsq.com and the videos on YouTube at
https://www.youtube.com/results?search_query=win4k3suite
73 Tom

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Re: [Elecraft] Linear thoughts

[Guy Olinger K2AV]

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick  wrote:
> The what?

K4.

Whatever the K3x finally evolves to, plus a front-end that does
brainwave interpretation by a combination brainwave detector,
microphone, headphone, computer display, eye reading device that looks
like an inverted colander.

No keyboard, no key, no knobs, no buttons, just a monitor display to
show you what state everything is in.

G.
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[Elecraft] Linear thoughts

[Chuck Chandler]

Hhhhmmm...

1000W minimum. Excellent performance. Clean signal. Easy interconnection
with K3 (or K4.) Reasonable weight and form factor (power supply in second
box would be OK.) Auto-tuner rated for output and reasonable SWR. Antenna
selection for at least 4 antennas.  Not as expensive as the competition
(or, at least within shouting distance.)

73 de Chuck, WS1L

-- 


===
Chuck Chandler
chandler...@gmail.com
===
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Re: [Elecraft] Linear thoughts

[Kevin - K4VD]

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick  wrote:

> ​T​
> he what?


​He said K4. :)

​
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Re: [Elecraft] Linear thoughts

[Bud Semon]

My thoughts in order of importance to me:

1) 1500 W continuous duty - 100% clean signal.
2) 160 - 6 M
3) QSK - no relays
4) 1 package - no separate power supply
5) Lightweight (this is relative of course)
6) Remotely controllable
7) Internal tuner not required

73, Bud  N7CW

On Fri, Mar 17, 2017 at 10:06 AM, Eric Swartz - WA6HHQ, Elecraft <
e...@elecraft.com> wrote:

> Interesting discussion.
>
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500
> in operation, what features etc would be important?
>
> 73,
> Eric
> /elecraft.com/
>
>
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Re: [Elecraft] Linear thoughts

[Wayne Burdick]

On Mar 17, 2017, at 11:14 AM, Wes Stewart  wrote:

> Three times the power, one-third the cost?
> 
> Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 
> SWR (option?), optional separate power supply, quieter cooling. Bigger box to 
> match K4.

The what?


> 
> Wes  N7WS
> 
> On 3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
>> Interesting discussion.
>> 
>> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
>> operation, what features etc would be important?
>> 
>> 73,
>> Eric
>> /elecraft.com/



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Re: [Elecraft] Linear thoughts

[Wes Stewart]

Three times the power, one-third the cost?

Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 SWR 
(option?), optional separate power supply, quieter cooling. Bigger box to match K4.


Wes  N7WS

 On 3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote:

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
operation, what features etc would be important?


73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Mike via Elecraft]

1.  Separate power supply or small control box (ala ACOM 2000A).   Same 
form factor as K line if separate power supply (small control box able to  
control an integral or separate "KAT1500" as well).
2.  Solid state.
3.  Full integration with K line similar to KPA500 and easy  integration 
with other radios including KX3 & KX2.
4.  160-6m.
5.  1500 W.
6.  True SO2R capable with K line and other radios (SPE 1.3K is almost  
there).
7.  Integral antenna tuner or "KAT1500".
8.  Easily user modified to get rid of antiquated 15db gain  limit.
9.  Clean TX throughout entire power range on a par with K3s.
10.  Easily remotable.
11.  QSK with adjustable parameters.
 
Mike KD8RQE
 
 
In a message dated 3/17/2017 1:12:20 P.M. Eastern Daylight Time,  
e...@elecraft.com writes:

Interesting discussion.

Folks, if we did introduce a 1500 W  solid state amp similar to our KPA500 
in 
operation, what features etc  would be  important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Charlie Carroll]

Strongly concur!

Think serious contesting and airline carry-on, weight, weight ..., continuous 
contest operation, prefer solid basic operation over bells and whistles (or 
make bells/whistles an option).

73 charlie k1xx/vp2mmf

On March 17, 2017 1:18:39 PM EDT, Andrew Faber via Elecraft 
 wrote:
>Eric,
>Hallelujah!  First acknowledgment of such a possibility!  I vote to put
>a 
>second amp module in the RF Deck (i.e., an RF deck that is the same as
>the 
>total size of the KPA500) and have a separate switching supply in
>another 
>box. 1200-1300 watts would be a sweet spot if 1.5K is a problem.  Shoot
>for 
>30 pounds or under.
>73, andy ae6y (KPA500 ser. 77).
>
>-Original Message- 
>From: Eric Swartz - WA6HHQ, Elecraft
>Sent: Friday, March 17, 2017 10:06 AM
>To: elecraft@mailman.qth.net
>Subject: Re: [Elecraft] Linear thoughts
>
>Interesting discussion.
>
>Folks, if we did introduce a 1500 W solid state amp similar to our
>KPA500 in
>operation, what features etc would be important?
>
>73,
>Eric
>/elecraft.com/
>
>
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>
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-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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Re: [Elecraft] Linear thoughts

[Peter LaBissoniere]

KPA-500 trade-in program.

Sent from my iPhone

> On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft 
>  wrote:
> 
> Interesting discussion.
> 
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
> operation, what features etc would be important?
> 
> 73,
> Eric
> /elecraft.com/
> 
> 
> __
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Re: [Elecraft] Linear thoughts

[Alan. G4GNX]

Also, same facilities as KPA500 and built in KAT1500 tuner.

73,

Alan. G4GNX

-Original Message- 
From: Gerald Manthey

Sent: Friday, March 17, 2017 5:24 PM
To: Eric Swartz - WA6HHQ, Elecraft
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Super quiet fans! Full duty cycle.


On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft 
 wrote:


Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 
in operation, what features etc would be important?


73,
Eric
/elecraft.com/ 


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Re: [Elecraft] Linear thoughts

[Ken K6MR]

“I vote to put a second amp module in the RF Deck…”

And the advantage here is that (according to the KPA500 schematic) the control 
hardware is already in place  :^)

Ken K6MR

From: Andrew Faber via Elecraft
Sent: Friday, March 17, 2017 10:19 AM
To: elecraft@mailman.qth.net; Eric Swartz - 
WA6HHQ, Elecraft
Subject: Re: [Elecraft] Linear thoughts

Eric,
Hallelujah!  First acknowledgment of such a possibility!  I vote to put a
second amp module in the RF Deck (i.e., an RF deck that is the same as the
total size of the KPA500) and have a separate switching supply in another
box. 1200-1300 watts would be a sweet spot if 1.5K is a problem.  Shoot for
30 pounds or under.
73, andy ae6y (KPA500 ser. 77).

-Original Message-
From: Eric Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 10:06 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Guy Olinger K2AV]

KPA1500?

QSK. Bombproof. IF possible, amp only in K3 form factor, separate
power supply regulated with sense line from the amplifier module.
KAT1500 with ability to place it remotely, able to place KAT1500
control buttons in an otherwise blank spot on KPA1500 front panel.
KAT1500 with memory per antenna jack per frequency. KPA/KAT
communication via telemetry over coax center conductor.

73, Guy K2AV

On Fri, Mar 17, 2017 at 1:06 PM, Eric Swartz - WA6HHQ, Elecraft
 wrote:
> Interesting discussion.
>
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
> operation, what features etc would be important?
>
> 73,
> Eric
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Re: [Elecraft] Linear thoughts

[Gerald Manthey]

Super quiet fans! Full duty cycle. 


> On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft 
>  wrote:
> 
> Interesting discussion.
> 
> Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
> operation, what features etc would be important?
> 
> 73,
> Eric
> /elecraft.com/
> 
> 
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Re: [Elecraft] Linear thoughts

[Joe K2UF]

Oh boy!  You just broke the e_dam,  now here comes the e_flood.  ;o))

73  Joe K2UF 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric
Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Andrew Faber via Elecraft]

Eric,
Hallelujah!  First acknowledgment of such a possibility!  I vote to put a 
second amp module in the RF Deck (i.e., an RF deck that is the same as the 
total size of the KPA500) and have a separate switching supply in another 
box. 1200-1300 watts would be a sweet spot if 1.5K is a problem.  Shoot for 
30 pounds or under.

73, andy ae6y (KPA500 ser. 77).

-Original Message- 
From: Eric Swartz - WA6HHQ, Elecraft

Sent: Friday, March 17, 2017 10:06 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Linear thoughts

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in
operation, what features etc would be important?

73,
Eric
/elecraft.com/


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Re: [Elecraft] Linear thoughts

[Gian Luca Cazzola]

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Re: [Elecraft] Linear thoughts

[w7aqk]

This debate seems to get resurrected a lot.  I think the reason for that is 
more philosophical than technical.  Clearly 1 KW is better than 500 watts, 
at least in many cases.  The question really is, do you actually need it, 
and can you make that leap practically.  Answers to those questions will be 
all over the board.


I run 500 watts because it is practical.  I don't have a 1 ton brick to deal 
with, I didn't have to re-wire my shack, the lights don't dim when I go key 
down, and I don't apparently have RFI problems.  I also only had to give up 
one arm and one leg (not both) to accomplish that financially--the cost/watt 
seems to go up significantly above that.  If all those factors were 
neutralized, I might run 1 KW too!


500 watts is a lot of power!  It gives me 60% of the maximum gain I can 
achieve legally (1 S unit down).  1 S unit is nothing to sneeze at, but I 
find that, usually, if I can hear them I can work them.  More often than 
not, if I have a problem, It is hearing them.  A bigger amp won't solve 
that.  I could probably gain 2 S units or more, both on RX and TX, with 
somewhat better antennas.  Well, that's a problem here too, but not for a 
lot of others.


Invariably the "weak signal" argument is raised, and it's hard to refute. 
However, I really wonder how often that is really solved by a bigger amp. 
They may be weak on your RX, but the reverse might not be true.  I'm just 
asking, not refuting.  It does seem to me, though, that it is more a matter 
of out shouting other stations.  On the other hand, it may be a matter of 
defeating the other person's noise level.  Score 1 for more power.  In fact, 
that may be one of the best arguments for more power.


Anyway, I don't think there is an answer here--just options and 
consequences.  A bigger amp is not a panacea--just an option.  What I think 
I do know, however, is that we tend to run more power than we need, not 
less.  Still, that depends on your philosophy.  A lot of folks have V8's, 
when a V6 is plenty.  Actually, I have a V8, but it just drinks more gas, 
and doesn't get me there any quicker.


Dave W7AQK






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Re: [Elecraft] Linear thoughts

[Eric Swartz - WA6HHQ, Elecraft]

Interesting discussion.

Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in 
operation, what features etc would be important?


73,
Eric
/elecraft.com/


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Re: [Elecraft] Remoteing with the K3 Mini and the 1238 Twins

[Mitch Wolfson , DJØQN / K7DX]

Dwight,

I suggest using serial port servers for the SPE, rotors and any other 
serial port devices. If you use these along with the RemoteRig boxes, 
then you will no longer need to have a PC running on the radio side.


The RemoteRig boxes have two serial port servers built-in, but are both 
used for CAT if you use CAT with your Elecraft "Twin" system. If you 
don't want to use CAT, then COM1 on the RRC's is available to control 
another device. I use Lantronix serial port servers such as the UDS2100 
https://www.lantronix.com/products/uds2100/, but there are a lot on the 
market.


There are also dedicated boxes from RemoteRig called RC-1216H 
http://www.remoterig.com/wp/?page_id=1010 that provides a web interface 
for these devices. They are much more expensive that a simple serial 
port server and don't provide a redirector to use client software 
remotely, but are an "idiot proof" method for people that prefer that 
method of control.


Using serial port servers allows you to use any client software for that 
device on the control side, including the SPE client.


For any further questions or details, please contact me off list.

73,
Mitch DJ0QN / K7DX

Mitch Wolfson DJØQN / K7DX
10285 Boca Cir, Naples, FL 34109
Skype: mitchwo
USA: Home:+1-239-221-9600 - Mobile:+1-424-288-9171
Germany: Home:+49 89 32152700 - Mobile:+49 172 8374436

On 17.03.2017 12:30, 'DGB' wrote:

I am getting my remote setup.

For hardware at the remote site (home) I am using a K3, Palstar 
HF-Auto, SPE Expert 1.3k - FA Amp., Green Heron Products for Rotor 
control and their wireless remote boxes for switching antennas, and 
one Remoterig 1238. I have all this connected to a PC that is 
connected to the internet.


From the control site (away from home) I will use a K3 Mini, another 
Remoterig 1238, and my laptop. I am able to control all my antennas 
with a client program from GH thru the internet. Last year I was using 
a KPA500 and KAT500 and was using Elecraft's client program to control 
them.


What I'm wondering is how I can control the HF-Auto and the SPE from 
the control site as neither have similar client programs available as 
the Elecraft stuff did?


Anyone else with a similar setup?

Thanks Dwight NS9I

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Re: [Elecraft] Remoteing with the K3 Mini and the 1238 Twins

[Chris Tate - N6WM]

Not sure about the Palstar but the SPE should be fairly easily controlled via 
its USB interface, So I would suggest a small and inexpensive PC like an intel 
NUC at the remote site that will open up a number of advanced features that 
will be difficult to tether over an Internet connection.

Ill be giving a presentation on contesting via Remote at Contest Academy in 
Visalia and am knee deep in writing material for this  right now..  but Dwight 
if you would like to chat offline about it I would be happy to do a knowledge 
share with you.

Chris
N6WM

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 'DGB'
Sent: Friday, March 17, 2017 9:31 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Remoteing with the K3 Mini and the 1238 Twins

I am getting my remote setup.

For hardware at the remote site (home) I am using a K3, Palstar HF-Auto, SPE 
Expert 1.3k - FA Amp., Green Heron Products for Rotor control and their 
wireless remote boxes for switching antennas, and one Remoterig 1238. I have 
all this connected to a PC that is connected to the internet.

 From the control site (away from home) I will use a K3 Mini, another Remoterig 
1238, and my laptop. I am able to control all my antennas with a client program 
from GH thru the internet. Last year I was using a
KPA500 and KAT500 and was using Elecraft's client program to control them.

What I'm wondering is how I can control the HF-Auto and the SPE from the 
control site as neither have similar client programs available as the Elecraft 
stuff did?

Anyone else with a similar setup?

Thanks Dwight NS9I

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[Elecraft] Remoteing with the K3 Mini and the 1238 Twins

['DGB']

I am getting my remote setup.

For hardware at the remote site (home) I am using a K3, Palstar HF-Auto, 
SPE Expert 1.3k - FA Amp., Green Heron Products for Rotor control and 
their wireless remote boxes for switching antennas, and one Remoterig 
1238. I have all this connected to a PC that is connected to the internet.


From the control site (away from home) I will use a K3 Mini, another 
Remoterig 1238, and my laptop. I am able to control all my antennas with 
a client program from GH thru the internet. Last year I was using a 
KPA500 and KAT500 and was using Elecraft's client program to control them.


What I'm wondering is how I can control the HF-Auto and the SPE from the 
control site as neither have similar client programs available as the 
Elecraft stuff did?


Anyone else with a similar setup?

Thanks Dwight NS9I

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Re: [Elecraft] Amateur Station Operations - rag chews and macro clicks

[Eric Swartz - WA6HHQ, Elecraft]

Thread closed.

While we encourage a wide range of primarily Elecraft related and some other OT 
amateur radio topics on this list,  in the interest of keeping list volume 
reasonable and intercourse polite, discussions and arguments regarding amateur 
radio policy etc should be moved to other forums for discussion.


73,
Eric
List moderator, really!
/elecraft.com/

On 3/16/2017 3:45 PM, Phil Wheeler wrote:
This list needs a "Don't read this thread" option. Pedantically quoting the 
Radio Regs and FCC regs seems a bit OT in an Elecraft list. It certainly has 
become tiresome! Perhaps the Moderator will agree.


Phil W7OX

On 3/16/17 3:01 PM, Colin wrote:

Going back to basics the Radio Regulations (2016) state -

1.56 amateur service: A radiocommunication service for the purpose of 
self-training,
intercommunication and technical investigations carried out by amateurs, that 
is, by duly authorized
persons interested in radio technique solely with a personal aim and without 
pecuniary interest.


1.57 amateur-satellite service: A radiocommunication service using space 
stations on

earth satellites for the same purposes as those of the amateur service.

and more specifically -

*ARTICLE 25*


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[Elecraft] WTB KPA500, KAT500 and P3

[Monzi]

WTB KPA500 and KAT500.  Contact me if you have one to sell.  Also looking for a 
P3 with SVGA card installed.  I am in contact with a seller of a P3 but keeping 
all options open until I've made a commitment to someone. 

Sincerely 

Rob AK7RM
Mesa, AZ
mo...@netscape.net

Sent from my iPhone
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Re: [Elecraft] Elecraft Digest, Vol 155, Issue 23

[Monzi]

WTB KPA500 and KAT500.  Contact me if you have one to sell.  Also looking for a 
P3 with SVGA card installed.  I am in contact with a sell Lee of a P3 but 
keeping all option open.
Sincerely 

Rob AK7RM
Mesa, AZ
mo...@netscape.net

Sent from my iPhone

> On Mar 17, 2017, at 6:16 AM, elecraft-requ...@mailman.qth.net wrote:
> 
> Send Elecraft mailing list submissions to
>elecraft@mailman.qth.net
> 
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
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> 
> You can reach the person managing the list at
>elecraft-ow...@mailman.qth.net
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
> 
> 
> Today's Topics:
> 
>   1. Re: Who sells a small RF quiet solar charge controller?
>  (David Rutledge)
>   2. Re: Who sells a small RF quiet solar charge controller?
>  (Aaron Marroquin)
>   3.  Linear thoughts (j...@kk9a.com)
>   4. Re: Preamp 2 and upcoming F/W (Wayne Burdick)
>   5. Re: Who sells a small RF quiet solar charge controller?
>  (Nicklas Johnson)
>   6. Re: Who sells a small RF quiet solar charge controller?
>  (Harry Yingst)
>   7. Re: Who sells a small RF quiet solar charge controller?
>  (Aaron Marroquin)
>   8. Re: Linear thoughts (garyk9gs)
>   9. Re: Linear thoughts (Ron D'Eau Claire)
>  10. Re: Preamp 2 and upcoming F/W (donov...@starpower.net)
>  11. Linear thoughts (James F. Boehner MD)
>  12. Re: Linear thoughts (Ken K6MR)
>  13. Re: Linear thoughts (Jamie WW3S)
>  14. Re: Linear thoughts (Jim Brown)
>  15. Re: Who sells a small RF quiet solar charge controller?
>  (Jim Brown)
>  16. Re: Linear thoughts (Jim Brown)
>  17. Re: Linear thoughts (Bob Nielsen)
>  18. Re: Linear thoughts (M. George)
>  19. Re: K3S front panel remove/replace tips? (Ian White)
>  20. WG: AW:  Preamp 2 and upcoming F/W (volker.de...@t-online.de)
>  21. Re: [K3] Announcing "The Y-BOX", (Dave B)
>  22. [OT] Re:  Traveling Power Supply for KX2? (Dave B)
>  23. Re: Linear thoughts (Morgan Bailey)
> 
> 
> --
> 
> Message: 1
> Date: Fri, 17 Mar 2017 01:33:28 + (UTC)
> From: David Rutledge 
> To: Matt Zilmer ,  
> Subject: Re: [Elecraft] Who sells a small RF quiet solar charge
>controller?
> Message-ID: <1474663130.1866157.1489714408...@mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
> 
> blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px 
> #715FFA solid !important; padding-left:1ex !important; background-color:white 
> !important; } Flint Hills Radio makes a nice, compact charge controller. 
> Here's his web site:
> Welcome to FlintHills Radio Inc.?
> 
> |  
> |   
> |   
> |   ||
> 
>   |
> 
>  |
> |  
> |   |  
> Welcome to FlintHills Radio Inc.
> 
> 
>  |   |
> 
>  |
> 
>  |
> 
> 
> 73,DavidAL5M
> 
> 
> Sent from Yahoo Mail for iPhone
> 
> 
> On Thursday, March 16, 2017, 8:25 PM, Matt Zilmer  
> wrote:
> 
> Cirkits.com.? The SCCS-3.? The owner is a ham, I believe.
> 
> 73,
> 
> matt W6NIA
> 
> 
>> On 03/16/2017 06:11 PM, Harry Yingst via Elecraft wrote:
>> 
>> I'm looking for a small RF quiet solar charge controller to charge a battery 
>> for my K2.
>> 
>> 
>> Who makes a good quiet one?
>> 
>> 
>> Thank you
>> __
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> 
> -- 
> "Always store beer in a dark place." -- R. Heinlein
> 
> Matt Zilmer, W6NIA
> [Voignier]
> 
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> 
> 
> 
> 
> --
> 
> Message: 2
> Date: Fri, 17 Mar 2017 01:34:45 +
> From: Aaron Marroquin 
> To: Elecraft Reflector 
> Subject: Re: [Elecraft] Who sells a small RF quiet solar charge
>controller?
> Message-ID:
>
> Content-Type: text/plain; charset=UTF-8
> 
> http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Solar.html
> 
> Also a HAM
> 
>> On Thu, Mar 16, 2017, 18:25 Matt Zilmer  wrote:
>> 
>> Cirkits.com.  The 

Re: [Elecraft] Linear thoughts

[Chris Tate - N6WM]

The expert amps work great with the K-line.  I use a 2kfa for contesting from 
K6LRG and the only equivalent amp I would put it up against is an ACOM 2000.  
It is essentially the Solid state equal of the ACOM but has more capabilities.  
The interface is excellent.  Amongst my colleagues there are a couple of 1.3's 
that are lighter but essentially feature equal with just a bit less power 
output but equally useable with the k-line.

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
j...@kk9a.com
Sent: Thursday, March 16, 2017 6:36 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Linear thoughts

I still have not seen the Genius pricing. I'm not sure what ever happened to 
the Acom 1200S.  Many people use the SPE 1.3KW on expeditions, I wonder how 
easy it is to hook it up to the K3S.  The KPA-500 works nicely with the K3S but 
giving up 4.5dBs is considerable, a KPA-1000 would be hard to resist. 

John KK9A

From: Gary K9GS
Thu Mar 16 19:19:38 EDT 2017

I think that the ship has sailed with respect to Elecraft bringing a legal 
limit SS amp to market.

There are a growing number of lightweight legal limit amps already on the 
market.  The FlexRadio Power Genius looks especially promising: 
http://www.flexradio.com/amateur-products/powergenius-xl/

It only weighs 33 pounds.  I saw it in operation at the Orlando HamCation and 
it looked very impressive operating all weekend into a dummy load at a 
conservative 1.5 kw output.

SPE also just announced a 1.5 kw amp..something I'm surprised they did given 
that they already have a 1 kw, 1.3 kw, and a 2kw amp on the market.  I know of 
several people that have the 1 kw amp and use it with their K3 radios and they 
love them.  I've used the big SPE amp in CQWW CW and it worked flawlessly all 
weekend without a hiccup.

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[Elecraft] Low KX3 Audio

[Mike Watterson (K3MAW)]

I have noticed recently a change in the audio in my KX3 and I have not
knowingly changed any settings.  The audio is very low, especially in CW,
even with AF up to 60.  I do have the RF gain to the maximum level with
AGC-Fast and preamp on.  SSB is a bit lower as well, but not nearly as
bad.  I do have an external speaker, which I swapped out and it did not
make a difference.  Also I had to bump my monitor level from 5 to 20 so I
could hear my own CW going out.  The RX equalizer settings are flat, no
changes from when I acquired the radio.

Any ideas?

Mike - K3MAW
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Re: [Elecraft] Linear thoughts

[Morgan Bailey]

I have a 1500 watt alpha sitting in the corner. It is a great amp,
although, I don't like the clunky relays and the fan noise to cool the
tubes. Once in a while I like to not have to use cans to operate, but for
the most part I do use the headphones. After having the Alpha and SB 220,
and TenTec Titan amps the Alpha was the loudest. It is kind of an antique
and it is my only piece of boat anchor equipment that I own. I bought a THP
1.5kfx amp and I have been running it at 500 watts when ever I turn it on.
I can run it at 1k or 3db increase in power and from the other end there is
no change in the rx station report. I run CW 98% of the time. But the amp
is used on SSB for the rag chew on a local level and yes I use an amp to
talk across town on 40 meters just to keep the cursing hog farmers and
drunks from messing with us. It works well for that. People just stay away.
But it also attracts the casual drop by who joins the QSO and is welcome to
stay awhile.

500 watts for the last 3 years has been more than enough. It is easy to
hold a frequency in a contest with that power and it causes no
problems with neighbors. Since I only use balanced antennas, my RFI
problems have disappeared. I can run 1500watts with no problems or lights
going on and off and garage doors opening. It is nice to have some headroom
in an amp and that is what the THP gives me. It just loafs at 500 watts. I
run it on 220v and the panel lights don't even change intensity.

I would vote for a 1k amp by Elecraft but probably would only run it at 750
tops. And No I don't need 6 meters so a 160-10 would be great. After all,
Elecraft came out with the KX2 vs KX3 and did just that, 80-10 no 160 or 6,
and I am just fine with that. So if they made an amp with 160 - 10 then
that would be fine by me. It may be even as simple as saying with the
software that the KPA 500 if the software were to change and state 750
watts 160-10 and 500 on 6, heck I would be even happy with that.

Elecraft stuff just works and I am happy with that. I so want to pull the
trigger on the KX 2 or 3 and it temps me every time I visit the page to see
what new stuff has come out.

In the near future, like right now, SDR radios are going to dominate the
field and I really want to see what Wayne, has cooked up for dealing with
that issue. SO2R is the wave of the future in contesting and K9CT is the
poster boy for the Flex 6700 and Maestro interface when it comes to
contesting. He sold all of his K3/P3 stations and has a full compliment of
Flex. Maybe, if Elecraft made a great interface that would work with the
K3S/N1MM then that is an area that should be explored for SO2R.

Every thing is contingent on market share and perceived value. Face it K3
owners are rather an elite crowd. First we are buying radios, when fully
equipped are nearing the $4k mark and from a cosmetic stand point of view,
they are not pretty on the out side. Utility is everything for us, and
simply the K3 works.

In the end, if Elecraft made a better amp than the KPA 500, I would
probably buy it. Maybe even 2 of them for my station conversion to SO2R.

I know guys that buy 2 KPA500.KTA500 for running SO2R with the Flex
6700/maestro set up. It works well for them. Once I retire, I will probably
do the same and run 2 k3s with them. It is the logical solution for me,
especially since I love the quiet relays/pin diode switching and the almost
silent fans when running hard with the KPA500.

Vy 73,

Morgan Bailey NJ8M



On Thu, Mar 16, 2017 at 2:44 PM, Bill Johnson  wrote:

> Erik,  I sold my solid state THP2.5kfx for the same reason of not being
> able to lift it easily.  I bought the KPA500 to replace it.  The difference
> in power isn't all that much to me but I don't contest.  I can make up for
> the power difference easily by improving my antennas.  I am doing so now as
> weather permits.  At least I have a great amp with nearly as much on the
> receiver's S meter on the other end.
>
> 73,
> Bill
> K9YEQ
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Erik Basilier
> Sent: Thursday, March 16, 2017 2:27 PM
> To: Elecraft@mailman.qth.net
> Subject: [Elecraft] Linear thoughts
>
> I recently sold my legal limit tube amp after a bit of a mental struggle.
> The seller in me finally won after I realized that "if I can't lift it, I
> shouldn't own it". I was tempted to replace it with an ALS-1306, but I
> operate RTTY and in that mode the 1306 wouldn't be good for more output
> than a KPA500. Today I received my (new to me) KPA500. However, in a
> contest someone with 1500 Watts will have a big advantage over my 500 W, so
> the subject of higher power may soon come back to me. With the competion
> today in solid state linears, I have to believe that Electraft will in the
> future offer a bigger linear. To me it would be sad if the new Elecraft
> amplifier were a lot heavier than the KPA500. I am a fan of linear
> supplies, but I would have to 

[Elecraft] [OT] Re: Traveling Power Supply for KX2?

[Dave B via Elecraft]

On 16/03/17 19:26, Bill AE6JV wrote:
> My Pro Audio Engineering power supply has a C8 connector. C8 is 
> part of a standard for connectors designed specifically to allow 
> different cords for different country's electrical plug 
> requirements.  (See:  
> for details.)
>
> 73 Bill AE6JV
Agreed, but it is the importers responsibility to ensure that it is
either supplied with the correct regional power cord, or supply one
themselves.

Many US vendors get it right, but just as many don't seem to care, or
even know that things are different outside of CONUS.

Adapters supplied with "new" products are AFIK not permitted, though it
often happens.   The problem there, is the quality and safety of such
adapters is often poor.   (Often low cost brittle plastic things from
the Far East.)

In this case, as the PSU is intended to be used with a device that has
exposed metallic parts connected to one side of the DC lead, I suspect
(I admit that I do not know for sure) that the AC input to that PSU
should include a safety ground, connected to (among other things) the
transformer inter-winding shield.

It's been a very long time since we've seen any similar PSU's for
laptops and similar devices, that do not have a three pole power inlet,
that includes a safety ground.  Even, if the DC output is fully isolated
from anything on the AC input side.

Take care.

Dave G0WBX..

~~~

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Re: [Elecraft] [K3] Announcing "The Y-BOX",

[Dave B via Elecraft]

On 16/03/17 19:26, elecraft-requ...@mailman.qth.net wrote:
> Re: [Elecraft] [K3] Announcing "The Y-BOX",

As it's a 4 way split, surely that should be X-BOX.

Hmmm...  Could be a product name clash with something else though...

Dave G0WBX.

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[Elecraft] WG: AW: Preamp 2 and upcoming F/W

[volker.de...@t-online.de]

-Original-Nachricht-
Betreff: AW: [Elecraft] Preamp 2 and upcoming F/W
Datum: 2017-03-17T09:10:34+0100
Von: "volker.de...@t-online.de" 
An: "Wayne Burdick" 

Will there be S-meter correction for Pre 2 in ABS mode?

73

Volker

DL4ZBG



-Original-Nachricht-
Betreff: Re: [Elecraft] Preamp 2 and upcoming F/W
Datum: 2017-03-17T02:45:45+0100
Von: "Wayne Burdick" 
An: "Dauer, Edward" 

Hi Ted,

Preamp 2 is in fact the one on the KXV3B. So any K3 running the new firmware 
will allow preamp 2 use on 17 and 15 meters. The NF improvement is significant 
(3 and 6 dB, respectively).

The firmware is being field tested now.

73,
Wayne
N6KR


On Mar 16, 2017, at 6:30 PM, "Dauer, Edward"  wrote:

> Wayne’s post – which I accidentally erased – noted that the LNA “Preamp 2” 
> will soon be accessible for 15 and 17 meters through a F/W release. 
>  
> Just to be sure, does anyone know if that will that include the preamp in the 
> KXV3B? 
>  
> I have so far passed up ordering a KXV3B because the Manual says its preamp 
> can be used on 12-10-6, whereas my outboard PR6-10 adds a good deal of gain 
> on 15 as well.
>  
> Ted, KN1CBR
>  
>  
>  
>  

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Re: [Elecraft] K3S front panel remove/replace tips?

[Ian White]

When separating the front panel assembly, place the K3(S) upside-down on
a smooth anti-static mat [1]. This ensures that the front panel cannot
drop away when the two units come apart, and avoids bending any
connector pins.

Likewise when reassembling: place the two units upside-down on the mat,
accurately line up the panel assembly with the main body of the K3(S)
and then simply *slide* the two parts together on the mat. 

The more you remove and replace the front panel assembly, the easier the
whole operation becomes because you are 'training' all the connector
pins to line up more accurately with their matching sockets. 


[1] Please say that you always use an anti-static mat for these
operations? 

73 from Ian GM3SEK

>-Original Message-
>From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
>Chuck Chandler
>Sent: 16 March 2017 14:01
>To: elecraft@mailman.qth.net
>Subject: [Elecraft] K3S front panel remove/replace tips?
>
>I will be putting my K3S on the bench this weekend to try to trace an
>intermittent bug.  Elecraft support has suggested removing the front
panel
>and checking the seating of the multi-pin connectors.
>
>Are there any tips to make the replacement easier?  As I recall that
was
>the single most nerve-wracking part of the kit.
>
>Thanks es 73 de Chuck, WS1L
>
>--
>
>
>===
>Chuck Chandler
>chandler...@gmail.com
>===
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