Elecraft

Linear thoughts

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Guy Olinger K2AV

Re: Linear thoughts

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick <[hidden email]> 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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Chris Tate - N6WM

Re: Linear thoughts

In reply to this post by wayne burdick

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 [[hidden email]] on behalf of Wayne Burdick [[hidden email]]
Sent: Friday, March 17, 2017 11:21 AM
To: Wes Stewart
Cc: [hidden email]
Subject: Re: [Elecraft] Linear thoughts

On Mar 17, 2017, at 11:14 AM, Wes Stewart <[hidden email]> 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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Mitch Wolfson, DJØQN / K7DX

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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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Bert Garcia N8NN

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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:[hidden email]] On Behalf Of Eric
Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To: [hidden email]
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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briancom

Re: Linear thoughts

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:[hidden email]] On Behalf Of Eric
> Swartz - WA6HHQ, Elecraft
> Sent: Friday, March 17, 2017 1:07 PM
> To: [hidden email]
> 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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> delivered to [hidden email]
>
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John Fritze

Re: Linear thoughts

In reply to this post by john@kk9a.com

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
[hidden email]
ACACES president 2014
ARES ENY DEC Northern District
Hudson Div. Asst. Director
Twitter: @k2qy
401 261 4996 (cell)
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Wes Stewart-2

Re: Linear thoughts

In reply to this post by wayne burdick

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 <[hidden email]> 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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Elecraft mailing list

Re: Linear thoughts

In reply to this post by john@kk9a.com

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,
[hidden email] 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:[hidden email]] On Behalf Of Eric
Swartz - WA6HHQ, Elecraft
Sent: Friday, March 17, 2017 1:07 PM
To: [hidden email]
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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Clay Autery

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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:

Edward R Cole

Re: Linear thoughts

In reply to this post by john@kk9a.com

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:
[hidden email]

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Dan Baker

Re: Linear thoughts

In reply to this post by john@kk9a.com

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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Carl Yaffey

Re: Linear thoughts

In reply to this post by Bert Garcia N8NN

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

> On Mar 17, 2017, at 3:54 PM, Bert Garcia N8NN <[hidden email]> 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.
[hidden email]
614 268 6353, Columbus OH
http://www.carl-yaffey.com
http://www.grassahol.com
http://www.bluesswing.com

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Bill K9YEQ

Re: Linear thoughts

In reply to this post by kw9e

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:[hidden email]] On Behalf Of Peter LaBissoniere
Sent: Friday, March 17, 2017 1:02 PM
To: Eric Swartz - WA6HHQ, Elecraft <[hidden email]>
Cc: [hidden email]
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 <[hidden email]> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]

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Jim Brown-10

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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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Roger Meadows

Re: Linear thoughts

In reply to this post by Bill K9YEQ

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 <[hidden email]<mailto:[hidden email]>> 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:[hidden email]] On Behalf Of Peter LaBissoniere
Sent: Friday, March 17, 2017 1:02 PM
To: Eric Swartz - WA6HHQ, Elecraft <[hidden email]<mailto:[hidden email]>>
Cc: [hidden email]<mailto:[hidden email]>
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 <[hidden email]<mailto:[hidden email]>> 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/<http://elecraft.com/>

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Gary Gregory-2

Re: Linear thoughts

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

On Mar 18, 2017 9:41 AM, "Roger Meadows" <[hidden email]> 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 <[hidden email]<mailto:k9yeq@
> 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:[hidden email]] On Behalf Of
> Peter LaBissoniere
> Sent: Friday, March 17, 2017 1:02 PM
> To: Eric Swartz - WA6HHQ, Elecraft <[hidden email]<mailto:eric
> @elecraft.com>>
> Cc: [hidden email]<mailto:[hidden email]>
> 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 <
> [hidden email]<mailto:[hidden email]>> 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/<http://elecraft.com/>
>
>
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k6dgw

Re: Linear thoughts

In reply to this post by Jim Brown-10

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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Bill Frantz

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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, [hidden email] (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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Gary K9GS

Re: Linear thoughts

In reply to this post by k6dgw

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?
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Message delivered to [hidden email]

--
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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Jim AB3CV

Re: Linear thoughts

In reply to this post by Eric Swartz - WA6HHQ

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 <
[hidden email]> 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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> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>

1234