[Elecraft] P3 Utility Will Not Connect To P3

[Don Wilhelm]

Tom,

Just a shot in the dark - there are 2 DB-9 connectors on the back of the 
P3.  Are you certain the one labeled "PC" is connected to the cable 
plugged into the PC (or USB to serial adapter)?   If so, try another 
cable (or adapter).

OK, if you have the K3S connected to the PC via the USB cable, then 
there is a slightly different situation (ignore the above).  Look at the 
diagram on page 18 of the K3S manual.  Note well that the connector on 
the end of the cable plugs into the connector marked PC and the 
connector with two cables emerging from it connects to the XCVR 
connector.  Unplug and replug the RJ-45 connection and make certain it 
is seated all the way.

If that still does not bring success and you have a USB to serial 
adapter (or a real serial port on the computer) connect that to the PC 
connector on the P3 as a test and see if you can run P3 Utility.

73,
Don W3FPR

On 9/8/2015 2:35 PM, Amateur Radio Operator N5GE wrote:
> I have connected my P3 to my new K3S and it works very well.  However,
> now when I try to load my P3 Utility it will not connect to any com
> port on my PC.
>
> I'm not new to working with COM ports and PC applications, having
> sucessfully written several working applications which connect com
> ports, so I set one of my applications to use one of the com ports the
> P3 utility will not connect to and stepped through the debugger and
> found that the program would connect to all of the com ports I had
> tried to connect the P3 Utility to, and found that in all cases the
> applications would connect to the com ports that the P3 Utility would
> not connect to.  In all test cases I set the com port speed at 38400
> or greater.
>
> Being one of the first factory built K3S's, perhaps I have stumbled
> onto a bug in the P3 Utility.
>
> Thanks for all of all of the great products you provide for me and the
> rest of the Elecraft owners.
>
>
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