Elecraft › [QRO]

KPA500 AUX Cable and KRC2

Classic

List

Threaded

5 messages Options

N5GE

KPA500 AUX Cable and KRC2

Does anyone have this combination working?

K3, KPA500 and KRC2.

AUX Cable connected to the KPA500, then connected to one side of the supplied Y
cable, which is connected to the K3 ACC connection. The other side of the Y
Cable is connected to the KRC2.

With this connection the Amplifier will not key, although it is communicating
with the K3 in both directions.

Since all of my antennas are switched by the KRC2 I am unable to use the Amp on
the antennas.

The Elecraft Support folks told me to put the Key Line interrupter in the line
that connects to the KRC2. That does not work.

I'm getting a little frustrated at not being able to use the KRC2 with the amp
Aux cable connected.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

______________________________________________________________
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

Amateur Radio Operator N5GE

Ed Muns, W0YK

Re: KPA500 AUX Cable and KRC2

These three products are integrated and working fine here since first adding
the KPA500 a month or two ago. I use the Elecraft KPAK3AUX cable and
Y-adapter, but not the key line interrupter. I can't think of what
configuration menu settings might cause or fix your problem, but it must be
something simple like that.

Ed - W0YK

Tom, N5GE asked:
> Does anyone have this combination working?
>
> K3, KPA500 and KRC2.

______________________________________________________________
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

N5GE

Re: KPA500 AUX Cable and KRC2

In reply to this post by N5GE

Problem found!

With the help of Paul at Elecraft support we found the problem.

If the PR6 is activating DIGOUT1 Of The K3 KPA500 while when the K3 is in
transmit mode.

This will require (hopefully) a firmware modification to one or both units.

Many thanks to Dale Farmer at Elecraft Support for helping me sort it out via
phone.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

On Wed, 29 Jun 2011 13:50:33 -0500, [hidden email] wrote:

>Does anyone have this combination working?
>
>K3, KPA500 and KRC2.
>
>AUX Cable connected to the KPA500, then connected to one side of the supplied Y
>cable, which is connected to the K3 ACC connection. The other side of the Y
>Cable is connected to the KRC2.
>
>With this connection the Amplifier will not key, although it is communicating
>with the K3 in both directions.
>
>Since all of my antennas are switched by the KRC2 I am unable to use the Amp on
>the antennas.
>
>The Elecraft Support folks told me to put the Key Line interrupter in the line
>that connects to the KRC2. That does not work.
>
>I'm getting a little frustrated at not being able to use the KRC2 with the amp
>Aux cable connected.
>
>73,
>Tom
>Amateur Radio Operator N5GE
>ARRL Lifetime Member
>QCWA Lifetime Member
>
>
>______________________________________________________________
>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

______________________________________________________________
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

Amateur Radio Operator N5GE

N5GE

Re: KPA500 AUX Cable and KRC2

In reply to this post by Ed Muns, W0YK

Ed and all...

It was the PR6 (6m Preamp) installation that was inhibiting PTT on the KPA500.

All is well now :o)

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

On Wed, 29 Jun 2011 12:41:55 -0700, Ed Muns <[hidden email]> wrote:

>These three products are integrated and working fine here since first adding
>the KPA500 a month or two ago. I use the Elecraft KPAK3AUX cable and
>Y-adapter, but not the key line interrupter. I can't think of what
>configuration menu settings might cause or fix your problem, but it must be
>something simple like that.
>
>Ed - W0YK
>
>
>Tom, N5GE asked:
>> Does anyone have this combination working?
>>
>> K3, KPA500 and KRC2.

Amateur Radio Operator N5GE

Iain MacDonnell - N6ML-2

Re: KPA500 AUX Cable and KRC2

In reply to this post by N5GE

On Wed, Jun 29, 2011 at 7:45 PM, <[hidden email]> wrote:
>
> Problem found!
>
> With the help of Paul at Elecraft support we found the problem.
>
> If the PR6 is activating DIGOUT1 Of The K3 KPA500 while when the K3 is in
> transmit mode.

Having a hard time parsing that sentence ;) ... but if you're using
DIGOUT1 to control the PR6, you would need to disconnect it from the
inhibit input of the KPA500.

Does the "Keying Line Interrupter" cut both the DIGOUT1 and PTT lines,
or only the latter? If it cuts both, you should be able to solve your
problem by placing it on the KPA500 side of the Y-adapter and running
a separate (RCA) keying line.

> This will require (hopefully) a firmware modification to one or both units.

Not sure how your problem could be fixed in firmware..........

~iain / N6ML

> On Wed, 29 Jun 2011 13:50:33 -0500, [hidden email] wrote:
>
>>Does anyone have this combination working?
>>
>>K3, KPA500 and KRC2.
>>
>>AUX Cable connected to the KPA500, then connected to one side of the supplied Y
>>cable, which is connected to the K3 ACC connection. The other side of the Y
>>Cable is connected to the KRC2.
>>
>>With this connection the Amplifier will not key, although it is communicating
>>with the K3 in both directions.
>>
>>Since all of my antennas are switched by the KRC2 I am unable to use the Amp on
>>the antennas.
>>
>>The Elecraft Support folks told me to put the Key Line interrupter in the line
>>that connects to the KRC2. That does not work.
>>
>>I'm getting a little frustrated at not being able to use the KRC2 with the amp
>>Aux cable connected.
>>
>>73,
>>Tom
>>Amateur Radio Operator N5GE
>>ARRL Lifetime Member
>>QCWA Lifetime Member
>>
>>
>>______________________________________________________________
>>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
>
> ______________________________________________________________
> 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
>