G0BSX BSX2 packet radio


Posted on Feb 4, 2014

Once packet radio started taking off, the limitations of my first foray into AX25 with the `BSX1` TNC became evident. It supported AX25 version 1 only and was limited in its IO capabilities. The command set was also `non standard` due to the almost universal acceptance of the TAPR TNC2 command set for BBS and terminal programs. I therefore decided to `clone` the TAPR TNC2.


G0BSX BSX2 packet radio
Click here to download the full size of the above Circuit.

I wanted a smaller simpler board with easy to source components. Once I built my prototypes, others became interested and, as a result, I made the boards available at cost to the amateur community. Some 4500 BSX2 boards were built and it formed much of the networking backbone of the UK packet radio network.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Thermometer For 5V Operation Circuit
    F232 is USB powered
    22 Watt Stereo Amplifier
    mc2833 fm transmitter circuit design electronic project
    Antenna selector circuit diagram using PIN diodes
    Digital Sine Wave Generator Circuit
    Functional Block Diagram for AD524 pin and internal circuit
    1.8kHz signal generator circuit



    Top