For my non-technical family and friends you can tune out as this is a techie computer geek post. Like many I run a linux machine as a traffic cop at the edge of my network. I prefer to run Secure Shell (SSH) server on its standard port so that I can easily connect to it … Read more
Displayed two TNC-Pi connected across a mesh network today at the PARC Hamfest. Sent ICMP Echo requests from n2xu-rPi-1 to n2xu-rPi-2 and received responses across the RF link. Was using 421.585 as a link frequency and had more separation between the systems than last week and less RF interference into the systems. Also, I picked … Read more
My development environment consists of two RasPi computers each with a TNC-Pi mounted on it. I made 3 ft interface cables to connect the TNC-Pi to Baofeng UV-5RA radios. The radios are WAY TOO CLOSE to the RasPi. Attempts to do TCP/IP across the RF link fail miserably. Initially I thought my software wasn’t configured … Read more
Note (07/30/2024): This post is a decade old and unfortunately N1URO is a silent key. I have no idea if his pages are still alive with the amount of time that’s passed since he left us but I’m leaving the post up in case you find it useful and / or you use the wayback … Read more
This post covers configure the Raspberry Pi to interface with the TNC-Pi. Configuration of AX25 and other ham radio protocols will be covered elsewhere… Source for this info is the TNC-Pi User Manual: Make sure Pi OS is up to date: sudo apt-get update sudo apt-get upgrade To use the serial port to connect the … Read more