Dpmr – Wavecom W74PC V8.7.0 User Manual

Page 167

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WAVECOM Decoder W74PC, W-PCI/e, W-CODE, W-CLOUD Manual V8.7.0

Transmission Modes

157

Wavecom DMR decoder covers all three tier services:

 Tier 1: Direct mode

 Tier 2: Direct mode and base station communication

 Tier 3: Trunking protocol.

Decoding outputs (text, voice and service messages) from the two TDMA slots are sorted in two separate
windows. The following two screen shots show a DMR data and voice transmission and real communication
on a base station, respectively.

DMR decoding voice and data test messages.

DMR decoding of data messages.

dPMR

dPMR (digital Private Mobile Radio) is an open ETSI standard published under the references TS 102 490
(License-free) and TS 102 658 (Licensed). It uses FDMA technology with a channel spacing of 6.25 kHz
and supports voice and data applications. The modulation scheme is 4FSK with a bit rate of 4800 bps.

Parameter

Value

Frequency range

Unlicensed: ETSI TS 102 490

446.100 - 446.200 MHz (CEPT ECC/DEC/(05)12)

149.01875 - 149.11875 MHz

Licensed: ETSI TS 102 658

Licensed PMR frequency bands

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