Node Hardware#

Most nodes are built using ex-taxi or transport Mobile Radios. They’re desirable as they’re built to run for long periods, high duty cycles and are (usually) designed for data use with easily access accessory ports and flat audio input/output.

Keep an eye out on ebay and other sources, but prices seem to be inflated lately owing to resurgance of the network in the UK.

You can get started with other radios, best performance will be those that support 9600 baud packet natively, like the Yaesu FT-8xx series with mini-DIN 8 DATA ports (and remembering to set the radio for PKT MODE 9600 accordingly).

Known good radios#

• Tait 8010
• Tait 2000
• Motorola GM340/360
• Motorola GM350
• Kenwood TK-76x, TK-78x

Programming#

Ben has programming hardware and software for all of the above, contact him if you source a radio and need a hand getting set up.

Coax#

Why is coax being brought up? Simple.

Data modes like Packet need a good SNR to work reliably. Don’t skimp on the coax, keep the runs short and if you can, run hardline for the best performance.

Hardware available from EIRPAK#

• Vertex VX2000 x 1 - Programmed for Packet use, with an accessory port. Cable will need to be made up for it.
• Tait 2000 (4M) x 2 - Both with DE-9 ports fitted that map to the TNC pinout for convenience.
• Ascom SE550 (4M) x 1 - Should be good for 1200 at least.