Kristoff on My Ham Stuff has put together a guide on how to make an EchoLink linknode for amateur radio enthusiasts using
A Raspberry Pi, A USB audio fob, USB to Serial adapter, a "digital modes" interface board, a handheld radio and external antenna, all for under 100 euros ($135, £85).
The EchoLink software allows Amateur Ham Radio stations to communicate using audio streaming over the Internet.
Highlighted useful uses for a EchoLink linknode are:
- For areas with no repeaters available
- Extend the range of existing repeater
- Using a EchoLink Conference
- Battery powered emergency communication set-up
Full details at My Ham stuff http://villazeebries.krbonne.net/hamstuff/?p=341