I am getting back on packet after being away from amateur radio for about 5 years. I want to send a command which I remember reading about (and used) that would 'ping' all stations that heard my signal and reply with their calls. I believe this was used on MFJ TNC's in the early 1990's and I found it worked on my Kantronics KPC-4. Does anyone know what the command is? I never wrote it down and have forgotten what it is. It was a command that came in handy at times. You could ping and get a response from all stations who heard you and were using a MFJ or Kantronics TNC. Any help with the command would be appreciated.
Thanks & 73,
Ed