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Seeking input on KPA1500 station configurations

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wayne burdick

Seeking input on KPA1500 station configurations

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The KPA1500 has very flexible I/O, and plenty of space for adding new control features in firmware. I/O ports include Ethernet, USB, RS-232, K3 Accessory connector (including Icom band voltages), AH-4, CI-V, keying input (PTT), ALC out, and remote power-on.

In order to prioritize our efforts towards the facilitation of remote control and interfacing, we’d like to hear from those considering how they might integrate a KPA1500 into their station. Please describe both third-party and home-built gear that you might be using. In what situations could the KPA1500 itself simplify setup or operation?

I can’t promise we’ll be able to respond to every question or suggestion, but we’ll keep all of your input for our internal discussions.

73,
Wayne
N6KR

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tomb18

Re: Seeking input on KPA1500 station configurations

Hi,
Here's one..
Since the KPA1500 can be turned on remotely, why not have it generate the
necessary signal on the K3 accessory connector to turn on the K3 as well?
Win4K3Suite can leverage this as well.
73

-----Original Message-----
From: Wayne Burdick
Sent: Thursday, June 8, 2017 7:23 PM
To: Elecraft Reflector
Cc: [hidden email]
Subject: [Elecraft] Seeking input on KPA1500 station configurations

The KPA1500 has very flexible I/O, and plenty of space for adding new
control features in firmware. I/O ports include Ethernet, USB, RS-232, K3
Accessory connector (including Icom band voltages), AH-4, CI-V, keying input
(PTT), ALC out, and remote power-on.

In order to prioritize our efforts towards the facilitation of remote
control and interfacing, we’d like to hear from those considering how they
might integrate a KPA1500 into their station. Please describe both
third-party and home-built gear that you might be using. In what situations
could the KPA1500 itself simplify setup or operation?

I can’t promise we’ll be able to respond to every question or suggestion,
but we’ll keep all of your input for our internal discussions.

73,
Wayne
N6KR

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Michael Zabel

Re: Seeking input on KPA1500 station configurations

In reply to this post by wayne burdick

Hello group,

This is my first post here, but have been reading the mail for a while.
I currently do not have any Elecraft gear, but have built a K2, and owned
KX1 and KX3.

I am considering upgrading my station in the near future and am interested
in the control possibilities of the KPA 1500.

I currently use an AH-4 for remote tuning of a non resonant vertical dipole
that I use on the upper bands, and have on order a Stockcorner JC-4s
kilowatt remote tuner to replace the AH-4.

To the topic here, I am interested in the mention of a connection for the
AH-4 on the KPA 1500 and and what it's use would be given the mismatch of
the power ratings of the two devices?

Now on to the station setup I can imagine...

It would be useful in my station setup if the KPA 1500 could sense a
frequency change and initiate a 10-20 watt tune cycle with the JC-4s before
going back to online status. Ideally the KPA 1500 could do this without
communication with the exciter making that interface universal.

Alternately, with the K3(s), any tune initiation from the transceiver could
cause the KPA 1500 to initiate a tune cycle with the JC-4s with the KPA
1500 in bypass.

Or even more ideally, Elecraft comes out with a fully integrated remote
tuner to match the KPA 1500 for those of us who need the wider matching
range in our urban antenna restricted situations.

A wide range tuner in the shack would also work, but then you would only
want to do that with some very low loss coax like 7/8 Heliax.

Thanks for the opportunity to give input and for the example you set as a
company.

73 de KV4TT - Mike

On Jun 8, 2017 7:25 PM, "Wayne Burdick" <[hidden email]> wrote:

> The KPA1500 has very flexible I/O, and plenty of space for adding new
> control features in firmware. I/O ports include Ethernet, USB, RS-232, K3
> Accessory connector (including Icom band voltages), AH-4, CI-V, keying
> input (PTT), ALC out, and remote power-on.
>
> In order to prioritize our efforts towards the facilitation of remote
> control and interfacing, we’d like to hear from those considering how they
> might integrate a KPA1500 into their station. Please describe both
> third-party and home-built gear that you might be using. In what situations
> could the KPA1500 itself simplify setup or operation?
>
> I can’t promise we’ll be able to respond to every question or suggestion,
> but we’ll keep all of your input for our internal discussions.
>
> 73,
> Wayne
> N6KR
>
> ______________________________________________________________
> 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]

Ken G Kopp

Re: Seeking input on KPA1500 station configurations

Hi Mike!

I used to use an AH-4. Check the power handling capability of the unit. I
think you'll find it's incapable of handling the KPA500, let alone the
KPA1500.

73!

Ken - K0PP

On Jun 13, 2017 11:43, "Michael Zabel" <[hidden email]> wrote:

> Hello group,
>
> This is my first post here, but have been reading the mail for a while.
> I currently do not have any Elecraft gear, but have built a K2, and owned
> KX1 and KX3.
>
> I am considering upgrading my station in the near future and am interested
> in the control possibilities of the KPA 1500.
>
> I currently use an AH-4 for remote tuning of a non resonant vertical dipole
> that I use on the upper bands, and have on order a Stockcorner JC-4s
> kilowatt remote tuner to replace the AH-4.
>
> To the topic here, I am interested in the mention of a connection for the
> AH-4 on the KPA 1500 and and what it's use would be given the mismatch of
> the power ratings of the two devices?
>
> Now on to the station setup I can imagine...
>
> It would be useful in my station setup if the KPA 1500 could sense a
> frequency change and initiate a 10-20 watt tune cycle with the JC-4s before
> going back to online status. Ideally the KPA 1500 could do this without
> communication with the exciter making that interface universal.
>
> Alternately, with the K3(s), any tune initiation from the transceiver could
> cause the KPA 1500 to initiate a tune cycle with the JC-4s with the KPA
> 1500 in bypass.
>
> Or even more ideally, Elecraft comes out with a fully integrated remote
> tuner to match the KPA 1500 for those of us who need the wider matching
> range in our urban antenna restricted situations.
>
> A wide range tuner in the shack would also work, but then you would only
> want to do that with some very low loss coax like 7/8 Heliax.
>
> Thanks for the opportunity to give input and for the example you set as a
> company.
>
> 73 de KV4TT - Mike
>
>
>
>
> On Jun 8, 2017 7:25 PM, "Wayne Burdick" <[hidden email]> wrote:
>
> > The KPA1500 has very flexible I/O, and plenty of space for adding new
> > control features in firmware. I/O ports include Ethernet, USB, RS-232, K3
> > Accessory connector (including Icom band voltages), AH-4, CI-V, keying
> > input (PTT), ALC out, and remote power-on.
> >
> > In order to prioritize our efforts towards the facilitation of remote
> > control and interfacing, we’d like to hear from those considering how
> they
> > might integrate a KPA1500 into their station. Please describe both
> > third-party and home-built gear that you might be using. In what
> situations
> > could the KPA1500 itself simplify setup or operation?
> >
> > I can’t promise we’ll be able to respond to every question or suggestion,
> > but we’ll keep all of your input for our internal discussions.
> >
> > 73,
> > Wayne
> > N6KR
> >
> > ______________________________________________________________
> > 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]
> ______________________________________________________________
> 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]

Michael Zabel

Re: Seeking input on KPA1500 station configurations

Here is a link to the JC-4s I have on order, it is rated 1 kw ssb.

http://www.stockcorner.nl/index.php/jc-4-automatic-antenna-tuner-1kw

KV4TT - Mike

On Jun 13, 2017 1:50 PM, "Ken G Kopp" <[hidden email]> wrote:

> Hi Mike!
>
> I used to use an AH-4. Check the power handling capability of the unit.
> I think you'll find it's incapable of handling the KPA500, let alone the
> KPA1500.
>
> 73!
>
> Ken - K0PP
>
> On Jun 13, 2017 11:43, "Michael Zabel" <[hidden email]> wrote:
>
>> Hello group,
>>
>> This is my first post here, but have been reading the mail for a while.
>> I currently do not have any Elecraft gear, but have built a K2, and owned
>> KX1 and KX3.
>>
>> I am considering upgrading my station in the near future and am interested
>> in the control possibilities of the KPA 1500.
>>
>> I currently use an AH-4 for remote tuning of a non resonant vertical
>> dipole
>> that I use on the upper bands, and have on order a Stockcorner JC-4s
>> kilowatt remote tuner to replace the AH-4.
>>
>> To the topic here, I am interested in the mention of a connection for the
>> AH-4 on the KPA 1500 and and what it's use would be given the mismatch of
>> the power ratings of the two devices?
>>
>> Now on to the station setup I can imagine...
>>
>> It would be useful in my station setup if the KPA 1500 could sense a
>> frequency change and initiate a 10-20 watt tune cycle with the JC-4s
>> before
>> going back to online status. Ideally the KPA 1500 could do this without
>> communication with the exciter making that interface universal.
>>
>> Alternately, with the K3(s), any tune initiation from the transceiver
>> could
>> cause the KPA 1500 to initiate a tune cycle with the JC-4s with the KPA
>> 1500 in bypass.
>>
>> Or even more ideally, Elecraft comes out with a fully integrated remote
>> tuner to match the KPA 1500 for those of us who need the wider matching
>> range in our urban antenna restricted situations.
>>
>> A wide range tuner in the shack would also work, but then you would only
>> want to do that with some very low loss coax like 7/8 Heliax.
>>
>> Thanks for the opportunity to give input and for the example you set as a
>> company.
>>
>> 73 de KV4TT - Mike
>>
>>
>>
>>
>> On Jun 8, 2017 7:25 PM, "Wayne Burdick" <[hidden email]> wrote:
>>
>> > The KPA1500 has very flexible I/O, and plenty of space for adding new
>> > control features in firmware. I/O ports include Ethernet, USB, RS-232,
>> K3
>> > Accessory connector (including Icom band voltages), AH-4, CI-V, keying
>> > input (PTT), ALC out, and remote power-on.
>> >
>> > In order to prioritize our efforts towards the facilitation of remote
>> > control and interfacing, we’d like to hear from those considering how
>> they
>> > might integrate a KPA1500 into their station. Please describe both
>> > third-party and home-built gear that you might be using. In what
>> situations
>> > could the KPA1500 itself simplify setup or operation?
>> >
>> > I can’t promise we’ll be able to respond to every question or
>> suggestion,
>> > but we’ll keep all of your input for our internal discussions.
>> >
>> > 73,
>> > Wayne
>> > N6KR
>> >
>> > ______________________________________________________________
>> > 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]
>> ______________________________________________________________
>> 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]
>
>

Bob Wilson, N6TV

Re: Seeking input on KPA1500 station configurations

In reply to this post by wayne burdick

Wayne,

Sorry for the delayed response. What seems to be missing from the KPA1500,
compared to the Alpha 87A, is a keying OUTPUT on an RCA phono jack. If
it's too late to add another jack to the KPA1500, perhaps the REM jack
could be reprogrammed via firmware to do this function, instead of remote
power on? Note that it also has to work when the amplifier is OFF.

From the Alpha 87A manual:

"KEY OUT – Provides a pull-down to ground (through 47 ohm resistor) which
follows the line connected to the RELAY jack when the amplifier is ON and
in OPERATE condition. When the 87A is in STANDBY or OFF, KEY OUT is
directly connected to the RELAY jack by a closed relay contact in the
amplifier. Useful for special T/R hook-ups when amplifier is used with
exciters having poor T/R sequencing."

Some folks have to send keying input to the amplifier, and let the
amplifier key the radio, to prevent hot switching. It may also be useful
in SO2R lockout systems.

In my shack, I currently wire two of these connectors in parallel (from two
amps) into a simple RCA Y-cable to a pre-amplifier's power disconnect line
on a Pixel Loop. Grounding this line on either amplifier will then remove
power from the antenna-mounted pre-amp whenever I transmit. The power
coupler is a Clifton Labs Z1203B which is 100% compatible with the Pixel
Loop, but it operates silently at QSK speeds (unlike the original Pixel
power coupler which has a noisy relay).

73,
Bob, N6TV

On Thu, Jun 8, 2017 at 4:23 PM, Wayne Burdick <[hidden email]> wrote:

Michael Zabel

Re: Seeking input on KPA1500 station configurations

In reply to this post by Michael Zabel

I originally ordered the 1kw tuner with the KPA 500 in mind.....then the
surprise announcement of the KPA 1500, and talk of flexibility of control
options.

Stock corner also has a 5kw tuner, but at 3200 Euros!!

KV4TT- Mike
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Michael Zabel

Re: Seeking input on KPA1500 station configurations

In reply to this post by Michael Zabel

This would be a great help!

I just know myself, and sooner or later I will TX full power into the
untuned antenna/tuner.

Though the rigs rx performance is far from ideal, the current setup has me
pretty spoiled. The Icom trx will initiate a tune of the AH-4 at low power
if I have changed frequency more than 1 %.

The JC-4s I have on order works on the AH-4 protocol too.

Just looking to add an amp to the station when I upgrade and the Elecraft's
have my eye.

KV4TT-Mike

On Jun 13, 2017 2:21 PM, "Dick Dievendorff" <[hidden email]> wrote:

Mike: The "Tune" connector on the back of the KPA1500, like the KAT500,
can be used with an ICOM transceiver to cause a transceiver TUNE button
press to start a tune cycle for the KPA1500's ATU. No AH-4 is involved,
the AH-4 is designed for the 100-watt category. The ICOM transceiver
sends and receives the same signals as it would with an AH-4. But it's the
Elecraft ATU, not the ICOM AH-4.

If you want to use a remote tuner, it should be capable of handing the
amplified output, the ATU tuning negotiation should be between the exciter
and remote ATU (which could well be the AH-4 protocol), and the KPA1500 can
be used in its ATU bypassed configuration.

We will be on the lookout for ways for the KPA1500 to help with this, like
bypassing the amplifier when ATU tuning.

73 de Dick, K6KR

-----Original Message-----
From: [hidden email] [mailto:elecraft-bounces@
mailman.qth.net] On Behalf Of Michael Zabel
Sent: Tuesday, June 13, 2017 10:43
To: Elecraft Reflector <[hidden email]>
Subject: Re: [Elecraft] Seeking input on KPA1500 station configurations

Hello group,

This is my first post here, but have been reading the mail for a while.
I currently do not have any Elecraft gear, but have built a K2, and owned
KX1 and KX3.

I am considering upgrading my station in the near future and am interested
in the control possibilities of the KPA 1500.

I currently use an AH-4 for remote tuning of a non resonant vertical dipole
that I use on the upper bands, and have on order a Stockcorner JC-4s
kilowatt remote tuner to replace the AH-4.

To the topic here, I am interested in the mention of a connection for the
AH-4 on the KPA 1500 and and what it's use would be given the mismatch of
the power ratings of the two devices?

Now on to the station setup I can imagine...

It would be useful in my station setup if the KPA 1500 could sense a
frequency change and initiate a 10-20 watt tune cycle with the JC-4s before
going back to online status. Ideally the KPA 1500 could do this without
communication with the exciter making that interface universal.

Alternately, with the K3(s), any tune initiation from the transceiver could
cause the KPA 1500 to initiate a tune cycle with the JC-4s with the KPA
1500 in bypass.

Or even more ideally, Elecraft comes out with a fully integrated remote
tuner to match the KPA 1500 for those of us who need the wider matching
range in our urban antenna restricted situations.

A wide range tuner in the shack would also work, but then you would only
want to do that with some very low loss coax like 7/8 Heliax.

Thanks for the opportunity to give input and for the example you set as a
company.

73 de KV4TT - Mike

On Jun 8, 2017 7:25 PM, "Wayne Burdick" <[hidden email]> wrote:

> The KPA1500 has very flexible I/O, and plenty of space for adding new
> control features in firmware. I/O ports include Ethernet, USB, RS-232,
> K3 Accessory connector (including Icom band voltages), AH-4, CI-V,
> keying input (PTT), ALC out, and remote power-on.
>
> In order to prioritize our efforts towards the facilitation of remote
> control and interfacing, we’d like to hear from those considering how
> they might integrate a KPA1500 into their station. Please describe
> both third-party and home-built gear that you might be using. In what
> situations could the KPA1500 itself simplify setup or operation?
>
> I can’t promise we’ll be able to respond to every question or
> suggestion, but we’ll keep all of your input for our internal discussions.
>
> 73,
> Wayne
> N6KR
>
> ______________________________________________________________
> 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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Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html Message
delivered to [hidden email]
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Elecraft mailing list

Re: [DETECTED AS SPAM] Re: Seeking input on KPA1500 station configurations

In reply to this post by Michael Zabel

It says 300 watts CW and emphasizes, "for a short time"

> Here is a link to the JC-4s I have on order, it is rated 1 kw ssb.
>
> http://www.stockcorner.nl/index.php/jc-4-automatic-antenna-tuner-1kw
>
> KV4TT - Mike
>
> On Jun 13, 2017 1:50 PM, "Ken G Kopp" <[hidden email]> wrote:
>
>> Hi Mike!
>>
>> I used to use an AH-4. Check the power handling capability of the unit.
>> I think you'll find it's incapable of handling the KPA500, let alone the
>> KPA1500.
>>
>> 73!
>>
>> Ken - K0PP
>>
>> On Jun 13, 2017 11:43, "Michael Zabel" <[hidden email]> wrote:
>>
>>> Hello group,
>>>
>>> This is my first post here, but have been reading the mail for a while.
>>> I currently do not have any Elecraft gear, but have built a K2, and owned
>>> KX1 and KX3.
>>>
>>> I am considering upgrading my station in the near future and am interested
>>> in the control possibilities of the KPA 1500.
>>>
>>> I currently use an AH-4 for remote tuning of a non resonant vertical
>>> dipole
>>> that I use on the upper bands, and have on order a Stockcorner JC-4s
>>> kilowatt remote tuner to replace the AH-4.
>>>
>>> To the topic here, I am interested in the mention of a connection for the
>>> AH-4 on the KPA 1500 and and what it's use would be given the mismatch of
>>> the power ratings of the two devices?
>>>
>>> Now on to the station setup I can imagine...
>>>
>>> It would be useful in my station setup if the KPA 1500 could sense a
>>> frequency change and initiate a 10-20 watt tune cycle with the JC-4s
>>> before
>>> going back to online status. Ideally the KPA 1500 could do this without
>>> communication with the exciter making that interface universal.
>>>
>>> Alternately, with the K3(s), any tune initiation from the transceiver
>>> could
>>> cause the KPA 1500 to initiate a tune cycle with the JC-4s with the KPA
>>> 1500 in bypass.
>>>
>>> Or even more ideally, Elecraft comes out with a fully integrated remote
>>> tuner to match the KPA 1500 for those of us who need the wider matching
>>> range in our urban antenna restricted situations.
>>>
>>> A wide range tuner in the shack would also work, but then you would only
>>> want to do that with some very low loss coax like 7/8 Heliax.
>>>
>>> Thanks for the opportunity to give input and for the example you set as a
>>> company.
>>>
>>> 73 de KV4TT - Mike
>>>
>>>
>>>
>>>
>>> On Jun 8, 2017 7:25 PM, "Wayne Burdick" <[hidden email]> wrote:
>>>
>>>> The KPA1500 has very flexible I/O, and plenty of space for adding new
>>>> control features in firmware. I/O ports include Ethernet, USB, RS-232,
>>> K3
>>>> Accessory connector (including Icom band voltages), AH-4, CI-V, keying
>>>> input (PTT), ALC out, and remote power-on.
>>>>
>>>> In order to prioritize our efforts towards the facilitation of remote
>>>> control and interfacing, we’d like to hear from those considering how
>>> they
>>>> might integrate a KPA1500 into their station. Please describe both
>>>> third-party and home-built gear that you might be using. In what
>>> situations
>>>> could the KPA1500 itself simplify setup or operation?
>>>>
>>>> I can’t promise we’ll be able to respond to every question or
>>> suggestion,
>>>> but we’ll keep all of your input for our internal discussions.
>>>>
>>>> 73,
>>>> Wayne
>>>> N6KR
>>>>
>>>> ______________________________________________________________
>>>> 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]
>>> ______________________________________________________________
>>> 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]
>>
> ______________________________________________________________
> 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]