IoT nb1 vs nb2 Devices Comparison,  Narrow Band IoT specifications were first introduced in 3GPP release 13 and then further enhanced in 3GPP release 14 with some essential features. Release 13 NB-IoT device category is referred to as Cat NB1 or Cat N1 and Release 14 devices are referred to as Cat NB2 or Cat N2. IoT nb1 vs nb2 Devices Comparison. Parameter Cat. NB1 Cat. NB2 3GPP Release Specification Release 13 Release 14 Operation Mode FDD FDD No. of Rx Antenna 1 1 Tx Power Class 20, 23 dBm...

LoRa is a proprietary spread spectrum modulation scheme that is derivative of Chirp Spread Spectrum modulation (CSS) and which trades data rate for sensitivity within a fixed channel bandwidth. It implements a variable data rate, utilizing orthogonal spreading factors, which allows the system designer to trade data rate for range or power, so as to optimize network performance in a constant bandwidth. SNR and Spreading Factor ( LoRa Link-budget and Sensitivity Calculations – Example Explained ! ) SNR (Singal to Noise Ratio) is the minimum ratio of wanted signal power...