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K2 with KPA500 and KAT500 setup

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RobertG

K2 with KPA500 and KAT500 setup

I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside
and putting the K2 back in the station lineup in order to re-acquaint
myself with the its operation. Looking at the cabling diagrams in the
KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and
another RCA jack line from the tuner to the amp looks pretty straight
forward. With this setup, do I disconnect the keying/integration cables
that normally connect the K3, KPA500 and KAT500? Assuming so, are there
any other aspects of using the K2 with the other K-Line units to which I
should pay attention? Thanks.

...robert
--
Robert G Strickland, PhD ABPH - KE2WY
[hidden email]
Syracuse, New York, USA
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Jack Brindle-2

Re: K2 with KPA500 and KAT500 setup

I believe you have it right. You could also leave the AUX cable connected from the KAT to the KPA so that the KAT can interrupt the KPA’s PTT signal. You need either that or the RCA-plug cable that you described.

You might want to connect the K2’s serial port to the KPA’s XCVR serial port, select RADIO=SERIAL in the KPA’s menu, and get things going that way. This is tested (by me, among others), and is known to work. If you are using the K2 and KPA/KAT with a computer, be sure to use a Y-adapter (you will have to make one) so that the KPA simply eavesdrops on the computer - K2 communication. If there is no computer, connect the two directly, then set the KPA’s SER POLL menu item to ON so that it will send serial commands to the K2 to get the band.

Enjoy the setup!

Jack Brindle, W6FB
Elecraft Engineering

On Jun 7, 2014, at 4:24 PM, Robert G Strickland <[hidden email]> wrote:

> I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside and putting the K2 back in the station lineup in order to re-acquaint myself with the its operation. Looking at the cabling diagrams in the KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and another RCA jack line from the tuner to the amp looks pretty straight forward. With this setup, do I disconnect the keying/integration cables that normally connect the K3, KPA500 and KAT500? Assuming so, are there any other aspects of using the K2 with the other K-Line units to which I should pay attention? Thanks.
>
> ...robert
> --
> Robert G Strickland, PhD ABPH - KE2WY
> [hidden email]
> Syracuse, New York, USA
> ______________________________________________________________
> 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
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vk2rq

Re: K2 with KPA500 and KAT500 setup

In reply to this post by RobertG

The stock K2 doesn't have a keying line for an amp. Here's an easy way to add one (I recently did this so I could use the K2 with the KXPA100 amp):
http://www.mwrs.org.au/2014/04/20/elecraft-k2-amplifier-keying-circuit/

73,
Matt VK2RQ

> On 8 Jun 2014, at 9:24 am, Robert G Strickland <[hidden email]> wrote:
>
> I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside and putting the K2 back in the station lineup in order to re-acquaint myself with the its operation. Looking at the cabling diagrams in the KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and another RCA jack line from the tuner to the amp looks pretty straight forward. With this setup, do I disconnect the keying/integration cables that normally connect the K3, KPA500 and KAT500? Assuming so, are there any other aspects of using the K2 with the other K-Line units to which I should pay attention? Thanks.
>
> ...robert
> --
> Robert G Strickland, PhD ABPH - KE2WY
> [hidden email]
> Syracuse, New York, USA
> ______________________________________________________________
> 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]

Don Wilhelm-4

Re: K2 with KPA500 and KAT500 setup

True, The K2/10 does not have a keying output, but the K2/100 does have
a Keyout output. Those contemplating the use of the KPA500 and KAT500
will likely have the KPA100 installed.

For those who want to use the K2/10 with the KPA500 or other amplifer,
read on ---

For those who would like to add an amp keying line to the K2/10, I refer
you to Tom Hammond (SK) N0SS's web information that is being preserved
by the MMARC at http://www.mmccs.com/mmarc/n0ss/.

Boards and kits are no longer available - Tom's website is now static,
but the information is there including the board layouts if some
enterprising amateur would like to create their own boards
Tom's K2 amp keying circuit can be easily be implemented on perfboard,
the circuit is not that complex.

If the K2 has the K60XV option fitted, there is a Keyout signal
available at the K60XV J2 pin 2 - connection to an appropriate output
jack is the only thing required. There is room for an RCA jack near the
key jack - just be certain the hole you drill is clear of the adjustment
for the 40 meter bandpass filter inductors.

73,
Don W3FPR

On 6/7/2014 10:04 PM, Matt VK2RQ wrote:

> The stock K2 doesn't have a keying line for an amp. Here's an easy way to add one (I recently did this so I could use the K2 with the KXPA100 amp):
> http://www.mwrs.org.au/2014/04/20/elecraft-k2-amplifier-keying-circuit/
>
> 73,
> Matt VK2RQ
>
>> On 8 Jun 2014, at 9:24 am, Robert G Strickland <[hidden email]> wrote:
>>
>> I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside and putting the K2 back in the station lineup in order to re-acquaint myself with the its operation. Looking at the cabling diagrams in the KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and another RCA jack line from the tuner to the amp looks pretty straight forward. With this setup, do I disconnect the keying/integration cables that normally connect the K3, KPA500 and KAT500? Assuming so, are there any other aspects of using the K2 with the other K-Line units to which I should pay attention? Thanks.
>>
>>

Dick Dievendorff-4

Re: K2 with KPA500 and KAT500 setup

In reply to this post by Jack Brindle-2

One caution: don't use the ACC cable for one hop and an RCA cable for the other. The amp key interrupt relay in the KAT500 is DPDT, and the KPA500 will key if either the RCA or ACC connector key line path is connected.

Dick, K6KR

> On Jun 7, 2014, at 18:21, Jack Brindle <[hidden email]> wrote:
>
> I believe you have it right. You could also leave the AUX cable connected from the KAT to the KPA so that the KAT can interrupt the KPA’s PTT signal. You need either that or the RCA-plug cable that you described.
>
> You might want to connect the K2’s serial port to the KPA’s XCVR serial port, select RADIO=SERIAL in the KPA’s menu, and get things going that way. This is tested (by me, among others), and is known to work. If you are using the K2 and KPA/KAT with a computer, be sure to use a Y-adapter (you will have to make one) so that the KPA simply eavesdrops on the computer - K2 communication. If there is no computer, connect the two directly, then set the KPA’s SER POLL menu item to ON so that it will send serial commands to the K2 to get the band.
>
> Enjoy the setup!
>
> Jack Brindle, W6FB
> Elecraft Engineering
>
>> On Jun 7, 2014, at 4:24 PM, Robert G Strickland <[hidden email]> wrote:
>>
>> I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside and putting the K2 back in the station lineup in order to re-acquaint myself with the its operation. Looking at the cabling diagrams in the KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and another RCA jack line from the tuner to the amp looks pretty straight forward. With this setup, do I disconnect the keying/integration cables that normally connect the K3, KPA500 and KAT500? Assuming so, are there any other aspects of using the K2 with the other K-Line units to which I should pay attention? Thanks.
>>
>> ...robert
>> --
>> Robert G Strickland, PhD ABPH - KE2WY
>> [hidden email]
>> Syracuse, New York, USA
>> ______________________________________________________________
>> 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]

RobertG

Re: K2 with KPA500 and KAT500 setup

In reply to this post by RobertG

resent for email check

On 6/7/2014 23:24, Robert G Strickland wrote:

> I'm going to use my K2 for Field Day. In prep, I'm putting the K3 aside
> and putting the K2 back in the station lineup in order to re-acquaint
> myself with the its operation. Looking at the cabling diagrams in the
> KPA500/KAT500 manuals, an RCA jack line from the K2 to the tuner and
> another RCA jack line from the tuner to the amp looks pretty straight
> forward. With this setup, do I disconnect the keying/integration cables
> that normally connect the K3, KPA500 and KAT500? Assuming so, are there
> any other aspects of using the K2 with the other K-Line units to which I
> should pay attention? Thanks.
>
> ...robert

--
Robert G Strickland, PhD ABPH - KE2WY
[hidden email]
Syracuse, New York, USA
______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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