[Elecraft] P3 hookup

[Mike]

Thanks Dick.

The speed settings will be fun to sort.

73, Mike NF4L

On 8/1/12 2:09 PM, Dick Dievendorff wrote:
> The SteppIR controller should be looking for IF auto-info "responses"
> containing frequencies from the K3.  The P3 passes these through its serial
> interface from the K3 to the computer side.
>
> There is additional "private traffic" between the P3 and K3; very likely the
> SteppIR controller is smart enough to ignore that chitchat.
>
> The serial connection between the P3 and K3 is always 38400 bps (and the P3
> firmware should set this speed automatically).
>
> The serial speed between your Computer and P3 is whatever you set the P3 to.
> Most computer software (and your StepIR) see the P3/K3 combination as a K3,
> even though the computer serial cable is connected first to the P3.
>
> If the SteppIR controller needs to be at a speed other than 38400, you'll
> need to put it on the computer side of the P3.
>
> Real experience (or info from SteppIR) should trump my theoretical opinion
> here: I don't have a SteppIR controller.
>
> Dick, K6KR
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike
> Sent: Wednesday, August 01, 2012 10:18 AM
> To: Elecraft Reflector
> Subject: [Elecraft] P3 hookup
>
> I've got a P3 coming, and just downloaded the manual. If I understand
> correctly from the diagram on p 13, the RS232 path is Computer--->P3--->K3.
>
> Currently I have a "y" cable plugged into the K3. The cable from the 'puter
> plugs into one leg of that, and the other leg goes to the SteppIR control
> box.
>
> Do I leave that where it is?
>
> 73, Mike NF4L
>
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