IDEN

iDEN™, short for Integrated Digital Enhanced Network, is a proprietary trunked radio system format developed and marketed by Motorola.

Nextel and the Southern Company's SouthernLINC radiotelephones use iDEN networks. ARINC also uses iDEN technology for it's AviNet Wireless Dispatch service covering major airports in the United States.

iDEN is based on an older all-digital trunking format called MIRS. There is an iDEN system operating in Israel under the name MiRS.

Signal Details

iDEN channels are 25 khz wide and carry a 16QAM modulated signal in a 6 slot TDMA configuration. Dispatch calls occupy one TDMA slot while duplex (eg. telephone or PSTN) calls occupy 2 slots. According to Motorola brochures, the vocoder is VSELP.

See also

• Nextel
• SouthernLINC
• ARINC AviNet
• MiRS