[Elecraft] P3 Panadapter Cable Connections

[Joe Subich, W4TV]

On 2021-01-04 4:07 PM, Rick NK7I wrote:
 > While I don't have the Microham, the Y should be first in the series
 > (listen only port to the Microham);

*NO!!!*  The microHAM USB III is, in part, a USB to Serial converter.
It provides the CAT connection to the transceiver and should be treated
as a computer serial port.  The RS232 connection should *NEVER* be
attached to a "listen only" port on a "Y" cable.

73,

    ... Joe, W4TV


On 2021-01-04 4:07 PM, Rick NK7I wrote:
> While I don't have the Microham, the Y should be first in the series 
> (listen only port to the Microham); to the P3, then the cable from the 
> P3 to the K3 so they can 'chat'.  (That is the same as I do for my 
> SteppIR controller.)
> 
> HNY,
> Rick NK7I
> 
> 
> On 1/4/2021 12:28 PM, MICHAEL SMITH wrote:
>> Gentlemen:
>>
>> I recently purchased a P3 and connected it to my K3.  The installation 
>> shares the RS232 connection with a Microham USB interface III for 
>> digital operation.  I used a Y cable to connect both of these units 
>> simultaneously.
>>
>> I find I cannot run both at the same time.  If I do, the P3 does not 
>> display the frequency at the top of the screen, and does not display 
>> the band-pass of the VFO A.  Each unit will run separately with full 
>> function.
>>
>> Has anyone else experienced this interaction?  Were you able to adjust 
>> the connection to allow full function of both units?  How did you do it?
>>
>> 73, Mike Smith
>> K0CCM