Spectrum · RF Spectrum Band
BeiDou B1I
1561.098 MHz
The BeiDou Navigation Satellite System's original open-service civil signal, publicly specified by China's national BeiDou programme office. The fourth globally-operating GNSS constellation's primary civil signal; relevant wherever a multi-GNSS picture must account for non-Western constellations operating in the same general L-band neighborhood.
The BeiDou Navigation Satellite System’s original open-service civil signal, publicly specified by China’s national BeiDou programme office.
Band facts
| Field | Value |
|---|---|
| Frequency | 1561.098 MHz |
| System | BeiDou (People’s Republic of China) |
| Category | GNSS — Global Navigation Satellite System |
| Band class | UHF |
| ITU region | Global — satellite radionavigation allocation, all three ITU Regions |
| Standard | BeiDou SIS ICD, Open Service Signal B1I |
Why this band matters
The fourth globally-operating GNSS constellation’s primary civil signal; relevant wherever a multi-GNSS picture must account for non-Western constellations operating in the same general L-band neighborhood.
Sources
Standards & authorities
- BeiDou SIS ICD, Open Service Signal B1I
Related in spectrum
Frequently asked
What frequency is BeiDou B1I?
BeiDou B1I operates at 1561.098 MHz. The BeiDou Navigation Satellite System's original open-service civil signal, publicly specified by China's national BeiDou programme office.
Why does the BeiDou B1I band matter?
The fourth globally-operating GNSS constellation's primary civil signal; relevant wherever a multi-GNSS picture must account for non-Western constellations operating in the same general L-band neighborhood.