PMR stands for “digital Private Mobile Radio” and it is an open standard digital radio protocol published by the European Telecommunications Standards Institute (ETSI). dPMR utilizes 6.25kHz narrowband FDMA technology with the AMBE+2™ voice codec that offers many forms of voice and data applications.
dPMR RANGE OF FUNCTIONAL LEVEL
Mode 1 Direct peer-to-peer mode
Mode 2 Conventional repeater mode
Mode 3 Centralized trunked mode
6.25KHZ NARROWBAND FDMA TECHNOLOGY
IDAS dPMR radios only use 6.25kHz per channel.
SELECTIVE CALL AND GROUP CALL
IDAS dPMR radios allow you to call individual or group users.
DIGITAL/ANALOGUE MIXED MODE
IDAS dPMR radios have built-in CTCSS/DTCS, 5-Tone signalings and can receive both analogue and digital mode signals on a single channel.
IDAS dPMR radios provide status call, short data messages and GPS position data with voice communication.
dPMR is designed to be a multi-vendor system. Each manufacturers must comply with ETSI.
DIGITAL SIGNAL COVERAGE
IDAS dPMR digital audio provides static noise free, stable audio for longer until the fringes of the communication range.
In the FDMA system, it could be possible to transmit at reduced power, which in turn conserves battery life and thus can prolong radio use time.