running computer connection while KXPA100 concurrently

[Brian Pepperdine]

I am interested in running a KXPA100 with my KX3... but there is something I cannot figure out.
IF I am using my KX3 currently with a compter (to use NaP3) I am running the COMM/serial cable from ACC1 to a USB port, as well as the RX I/Q cable to a USB port... right?

From my reading of the manual.. if using the KXPA100 I have to run two cables from ACC1 and ACC2 to an adapter box that then goes to the Control input on the KXPA100. If I am therefore using the ACC1 port for the KXPA100.... I don't have the port available for the computer to see the KX3 info.. right? Therefore NaP3 has no rig or frequency info to use.

Or can I use the  RS232 (PC) port from the KXPA100 to provide info to the computer (though I would actually NOT want RS-232 physical type port for this... only USB.. since laptops don't generally have RS-232 any longer.) So can I use the Elecraft  ACC to USB cable for that?

Is there a solution to this setup...... or is it that use of the amp and its requisite interconnections precludes the availability?

Its a bit confusing since I know the update info has to be made available somehow FROM the PC and to the KX3 in order to do firmware updates via the KX Utility.

By know you will have realized that having NaP3 on my K3 has spoiled me and its a 'must'...otherwise I will just leave my KX3 as a QRP rig only and forget about the KXPA100 operation.


Brien VE3VAW


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[Don Wilhelm]

Brian,

With the KX3 and KXPA100, you should be using the optional KX3 to
KXPA100 Adapter Cable (KXPACBL) connected as shown on page 14 of the
KXPA100 manual.

You will then connect the KXUSB cable to the KXPA100 RS232 jack to
communicate with either the KX3 or the KXPA100.
In other words, only one connection to the PC.  The KXPA100 jack is a
replication of the KX3 ACC1 jack.

That will suffice for the rig control portion of NaP3.  In addition, you
will need the connection to the soundcard from the RX I/Q jack for the
spectral display.

73,
Don W3FPR

On 3/1/2019 5:38 PM, Brian wrote:
> I am interested in running a KXPA100 with my KX3... but there is something I cannot figure out.
> IF I am using my KX3 currently with a compter (to use NaP3) I am running the COMM/serial cable from ACC1 to a USB port, as well as the RX I/Q cable to a USB port... right?
>
>>From my reading of the manual.. if using the KXPA100 I have to run two cables from ACC1 and ACC2 to an adapter box that then goes to the Control input on the KXPA100. If I am therefore using the ACC1 port for the KXPA100.... I don't have the port available for the computer to see the KX3 info.. right? Therefore NaP3 has no rig or frequency info to use.
>
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[Bob N3MNT]

Use the connection on the back of the KXPA100 to the PC with the cable you
received with the KX3.



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