[NARROWB] Is Wireless M-Bus narrowband? Mode N in Wireless M-Bus is narrowband using 12.5 kHz channels at 169 MHz. Last Update: August 8, 2017 January 11, 2017 1561 Narrowband Q&A Related Knowledge Base Posts -[NARROWB] Can a narrowband radio be used in India?[NARROWB] What is the effect on range if I use higher data rates to reduce the transmission duration?[NARROWB] Can I use narrowband with frequency hopping protocol?