Frequencies
Professional Mobile Radio 446
PMR446
European Union Standardized. No license required, 0.5 watt maximum power, 12.5 kHz channel steps, narrow FM, detachable antenna not allowed. 8 channels from 446.0-446.1 MHz. Business and personal/family use permitted.
DPMR446 (FDMA)
Digital Professional Mobile Radio 446 TDMA (DMR Tier 1) and FDMA (4-level FSK modulation) two overlapping channel plans from 446.1-446.2 MHz. 8 TDMA channels and 16 FDMA channels. European Union Standardized. No license required, 0.5 watt maximum power, detachable antenna not allowed. Business and personal/family use permitted.
Since the FDMA channels are one digit longer than the RR DB allows for frequencies, they have been rounded up as per RR DB policy. For example, 446.103125 has been rounded up to 446.10313...446.109375 has been rounded up to 446.10938, etc.