Long working days are common in a utility environment and being able to communicate throughout the whole shift is critical for safety and workforce efficiency.
One of the biggest challenges with portable radios has always been limitations on battery shift life. The two slot TDMA DMR Tier 3 platform from Tait offers a significant leap forwards to improve the shift life of portable radios.
The impact of two-slot TDMA on shift life
In the past the shift life of radios could only be increased by using lower power technologies and larger batteries. DMR now adds a dramatic new feature for achieving longer shift life – two slot TDMA technology.
DMR is a two-slot Time Division Multiple Access digital radio platform, so DMR radios transmit on one of two available timeslots into which each channel is divided. This means that a transmitter only operates for half the of a conventional analog FDMA (Frequency Division Multiple Access) system for the same transmission. Two-slot TDMA technology enables DMR to deliver 40% longer battery performance on a single charge, than an equivalent analog radio. The radio still generates the same amount of RF power and delivers similar range as a comparable analog radio.
Longer shift life drives efficiency and safety
The 40% increase gained from two-slot transmission, combined with high capacity lithium ion batteries, makes Tait DMR Tier 3 the no compromise choice for utilities wanting to provide their workforce with reliable, uninterrupted communications.
This extra battery life can be absolutely critical during emergencies, natural disasters and weather events when both workers are employed for extended periods repairing faults and reconnecting customers.
No energy-consuming amplitude modulation
Another factor contributing to the DMR Tier 3 platform's longer battery life is the 4 FSK (4-level Frequency Shift Keying) modulation scheme deployed as part of the DMR standard. This is a constant envelope modulation scheme, with no energy-consuming amplitude modulation – enabling DMR Tier 3 radios to have even more highly efficient transmitters consuming less energy per transmission than other technologies.