Cat doubles the comports.

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  • Question
  • Updated 2 years ago
  • Answered
I am running 2.0 (etc) and I notice that when I add a comport to CAT, such as com 4 it automatically adds a second port at 104. I have not noticed this before and is there a reason for the doubling up of a comport?
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Ross Biggar

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Posted 2 years ago

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Ross - I'm not sure why, but I've confirmed from FRS that it is normal.
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Craig - KØCF

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Official Response

Smart CAT makes two ports for a very simple reason: The lower-numbered one is the one that is made available externally to your software; the other connects to the radio internally, and cannot be used otherwise. And its number is normally the external port plus 100.

Craig, KØCF

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Ross Biggar

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Thanks, that explains why.
Best wishes
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David Decoons wo2x, Elmer

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You are in advanced mode for editing the cat ports.

Normally when you configure a cat port entry in SmartSDR CAT it only shows the lower port number which you use for a third party program.
The higher number port (com104 in your case) is used to connect to the radio and is normally hidden. To see both port numbers open a cat port for editing and right click in that window. Choose advanced.

Dave wo2x