PTT COM port: Satellites information update by JE9PEL

Subject: PTT COM port
From: Mineo Wakita
To: Andy UZ7HO
Date: Thu, 19 Oct 2017 19:34:48 +0900

I can now do transmission operation when I check "Dual PTT"
ie, "SoundModem - Settings - Devices - PTT port - Dual PTT".

When do you check "Swap COM pins for PTT" ?


Re: PTT COM port
From: Andy UZ7HO
To: Mineo Wakita
Date: Thu, 19 Oct 2017 14:11:28 +0300

Hi Mineo!

Normally for the port A the RTS pin is used, for port B is DTR pin.
The "Swap COM pins" option swaps these pins.

注  RTS: Request To Send, 送信要求
    DTR: Data Terminal Ready, データ端末レディ