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MOTOTRBO

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Revision as of 21:11, 13 March 2011 by Radioguy2002 (talk | contribs)

MOTOTRBO is a Motorola digital radio product marketed primarily to business/industrial users, but has found its way into some public safety uses. The format is based on, and compatible with the European 2-slot DMR standard and uses Time Division Multiple Access (TDMA) to effectively accommodate two simultaneous users. A single 12.5 kHz channel is able to carry two simultaneous and independent conversations, or simultaneous and independent voice and data paths each with 6.25 kHz equivalency, however the bandwidth of DMR exceedes the maximum required for UHF 6.25 kHz channel centers. Operation of different talkgroups and talkpaths similar to trunking is possible, as is wide-area operation through IP connectivity. MOTOTRBO transceivers and repeater stations may be retrocompatible with analog FM using CTCSS or CDCSS.

No scanner can monitor this digital format by itself but it can be monitored with DSD. Other decoding efforts have been started, such as Ian Wraith's DMRDecode. DMRDecode is currently unable to decode audio.

Emission designators for MOTOTRBO: 7K60FXE (voice), 7K60FXD (data).

MOTOTRBO is based on the following ETSI standards.

The standard includes provisions for trunking - a feature not yet offered by Motorola's MOTOTRBO.

  • ETSI TS 102 361-4 Trunking

Additional information on DMR is available through the Digital Mobile Radio Association.

MOTOTRBO Portable/Mobile Radios and Repeater

(These model numbers are for MOTOTRBO radios sold in the United States.)

Portables

  • XPR 6500 (display, non-GPS)
  • XPR 6550 (display, GPS)
  • XPR 6300 (non-display, non-GPS)
  • XPR 6350 (non-display, GPS)

Mobiles

  • XPR 4500 (full display, non-GPS)
  • XPR 4550 (full display, GPS)
  • XPR 4300 (numeric display, non-GPS)
  • XPR 4350 (numeric display, GPS)

Repeater

  • XPR 8300

MOTOTRBO Systems in Use

(This is only a partial list of businesses that use MOTOTRBO. This list includes businesses in the United States only.)

Related Links

Equipment on Ebay