Optimal efficiency was a key objective in designing DMR. This applies not only to performance, equipment cost and ease of implementation but also to energy efficiency.
4 Level FSK modulation
- Constant envelope modulation allows the use of non-linear high efficiency power amplifiers
2 Slot TDMA combines two channels on a single carrier
- Less transmitters
- Reduced antenna combiner losses
- Less power consumption for equivalent range
- Can be used on traditional 12,5 kHz channels
This translates to lower overall power consumption requiring less, if any, air conditioning and makes the radio site more cost-effective. It is also easier to get hosted on existing radio sites. Many DMR Basestation run off-grid with solar power panels at zero CO2 emission and energy cost.
