[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 1309 Narrowband Q&A Related Knowledge Base Posts -[NARROWB] Can a narrowband radio be used in India?[NARROWB] In the RC1692HP datasheet I found information that input current equals 59+297=356mA[NARROWB] What is the drawback of narrowband radio? What about the temperature range?