Raspberry Pi/TNC-Pi Setup/configuration

This is a raw, working document intended to record how to set this up from scratch. Raspbian version: 2014-09-09-wheezy-raspbian.img 1. Setup the OS: Use caution on your target storage device: sudo dd bs=4M if=2014-09-09-wheezy-raspbian.img of=/dev/sdb 2.  Boot the card and expand the file system, change password, configure ssh server, and set hostname… then reboot the … Read more

Self-blocking Script Kiddies

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

PARC Hamfest

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

RF In The Shack!

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