Alias
RMR 900

Also known as "RMR 900", this band has been specifically allocated for Rail Mobile Radio communications. As part of the European Union's Future Railway Mobile Communications System (FRMCS), it is designed to replace the ageing GSM-R network, offering more reliable and faster connections for railway systems. The band uses an FDD configuration with uplink frequencies ranging from 874.4 to 880 MHz and downlink frequencies from 919.4 to 925 MHz. The n100 band was standardised in 3GPP Release 17.6 in June 2022.

Technical Characteristics

Technology
5G NR
Duplexing
FDD
Duplex Spacing
45 MHz
Channel Widths
5
Uplink Start
874.4 MHz
Uplink Stop
880 MHz
UL ARFCN Low
174880
UL ARFCN High
176000
Downlink Start
919.4 MHz
Downlink Stop
925 MHz
DL ARFCN Low
183880
DL ARFCN High
185000

Geographical Band Usage

Below is a geographical distribution of countries and networks using this 5G band. Data may change without notice.