eVerge digital radios operate using the Time-Division Multiple Access (TDMA) digital mobile radio protocol to achieve spectrum and power efficiency and lower total equipment cost compared to FDMA (Frequency Division Multiple Access). It is important to note these two protocols are not compatible. So, unlike analog, not all digital radios work together in digital mode. Over 74% of digital radios used worldwide are TDMA -- make the right choice the first time with eVerge for a future proof compatible investment. eVerge digital radios are also compatible with Motorola MotoTrbo digital radios.