GNSS Engineering Tools
Interactive GNSS Frequency Band Visualizer
The L-band spectrum from 1165 to 1620 MHz carries every public GNSS signal in operation. This chart plots all GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC, and SBAS bands at scale — hover any signal for the centre frequency, bandwidth, and modulation; click a frequency marker to see exactly which constellations share that interop band.
L-band 1165–1620 MHz
Click constellations below to focus the chart, or click a dashed line to highlight a shared frequency.
Hover or tap a signal bar for full details.
Bands sharing —
Per-constellation reference
Per-constellation reference
All public signals for each GNSS constellation, including signals outside the chart's L-band window (such as NavIC's S-band).
GPS
Global Positioning SystemOrigin: USA
| Centre | Frequency (MHz) |
|---|---|
| L1 C/A | 1575.42 |
| L1C | 1575.42 |
| L1 M-code | 1575.42 |
| L2 P(Y) | 1227.6 |
| L2C | 1227.6 |
| L2 M-code | 1227.6 |
| L5 | 1176.45 |
GLONASS
Globalnaya Navigatsionnaya Sputnikovaya SistemaOrigin: Russia
| Centre | Frequency (MHz) |
|---|---|
| L1OF (FDMA) | 1602 |
| L2OF (FDMA) | 1246 |
| L3OC (CDMA) | 1202.025 |
| L1OC (CDMA) | 1600.995 |
| L2OC (CDMA) | 1248.06 |
| L5OC (CDMA) | 1176.45 |
Galileo
GalileoOrigin: European Union
| Centre | Frequency (MHz) |
|---|---|
| E1 (OS / PRS) | 1575.42 |
| E5a | 1176.45 |
| E5b | 1207.14 |
| E5 AltBOC | 1191.795 |
| E6 (CS / PRS / HAS) | 1278.75 |
BeiDou
BeiDou Navigation Satellite SystemOrigin: China
| Centre | Frequency (MHz) |
|---|---|
| B1I | 1561.098 |
| B1C | 1575.42 |
| B2a | 1176.45 |
| B2b | 1207.14 |
| B2I | 1207.14 |
| B3I | 1268.52 |
QZSS
Quasi-Zenith Satellite SystemOrigin: Japan
| Centre | Frequency (MHz) |
|---|---|
| L1 C/A | 1575.42 |
| L1C | 1575.42 |
| L1S (SLAS / SAIF) | 1575.42 |
| L2C | 1227.6 |
| L5 | 1176.45 |
| L6 (CLAS / MADOCA) | 1278.75 |
NavIC
Navigation with Indian ConstellationOrigin: India
| Centre | Frequency (MHz) |
|---|---|
| L5 SPS | 1176.45 |
| L5 RS | 1176.45 |
| S-band SPS | 2492.028 |
| L1 (planned) | 1575.42 |
SBAS
Satellite-Based Augmentation SystemsOrigin: Multi-region
| Centre | Frequency (MHz) |
|---|---|
| L1 | 1575.42 |
| L5 | 1176.45 |
Common shared frequencies
Common shared frequencies
Modern multi-constellation receivers exploit the fact that several GNSS systems coexist on the same centre frequencies — buying inherent interoperability without dedicated front-ends per constellation.
- GPSL1 C/ABPSK(1)
- GPSL1CTMBOC(6,1,1/11)
- GPSL1 M-codeBOCsin(10,5)
- GalileoE1 (OS / PRS)CBOC(6,1,1/11)
- BeiDouB1CMBOC(6,1,1/11)
- QZSSL1 C/ABPSK(1)
- QZSSL1CTMBOC(6,1,1/11)
- QZSSL1S (SLAS / SAIF)BPSK(1)
- NavICL1 (planned)BOC(1,1)
- SBASL1BPSK(1)
- GPSL5BPSK(10)
- GLONASSL5OC (CDMA)BPSK(10)
- GalileoE5aBPSK(10)
- BeiDouB2aBPSK(10)
- QZSSL5BPSK(10)
- NavICL5 SPSBPSK(1)
- NavICL5 RSBOC(5,2)
- SBASL5BPSK(10)
- GPSL2 P(Y)BPSK(10)
- GPSL2CBPSK(1)
- GPSL2 M-codeBOCsin(10,5)
- QZSSL2CBPSK(1)
- GalileoE5bBPSK(10)
- BeiDouB2bBPSK(10)
- BeiDouB2IBPSK(10)
FAQ
Frequently asked questions
What antenna designers and integrators most often ask before specifying multi-frequency hardware.
Which antenna covers GPS L1, Galileo E1, and BeiDou B1C?
All three signals are centred on 1575.42 MHz, so any antenna tuned for the L1 band picks them up simultaneously. Look for a specified bandwidth of at least 32 MHz centred at 1575.42 MHz to fully receive BeiDou's wideband B1C MBOC signal alongside GPS C/A and Galileo E1.
What does "L5 / E5a / B2a interoperable" mean in a datasheet?
Those three signals are co-located at 1176.45 MHz with similar BPSK(10) modulation. An antenna that covers 1176.45 MHz with at least 20 MHz of usable bandwidth receives all three at once, which is what most modern multi-constellation high-precision and SoL receivers rely on.
Why is GLONASS shown as a band rather than a single line?
GLONASS's legacy L1OF and L2OF signals use FDMA — each satellite transmits on its own slightly different centre frequency, separated by 0.5625 MHz (L1) or 0.4375 MHz (L2). The chart shows the full FDMA channel envelope, not a single carrier. The newer GLONASS CDMA signals (L1OC, L2OC, L3OC, L5OC) use single carriers like every other constellation.
Do I need three separate antennas to receive L1 + L2 + L5?
No. A wideband multi-frequency antenna covers all three L-band centres in a single feed. Triple-band designs ranging from compact survey/RTK helices to choke-ring geodetic antennas are standard product categories — see our high-precision measurement line for examples.
How are CRPA anti-jamming arrays positioned in the spectrum?
A CRPA covers the same physical bands as a regular GNSS antenna; the difference is in the signal processing behind it (adaptive null steering against jamming sources). Our 4–32 element CRPAs cover BeiDou B1/B3 plus GPS L1 and Galileo E1, with optional L5 / E5a / B2a in higher-element variants.
Where does NavIC's S-band fit into the picture?
NavIC is the only major GNSS that broadcasts a navigation signal in S-band (2492.028 MHz), well outside the L-band cluster. Most receivers that claim NavIC support pick up only the L5 SPS signal at 1176.45 MHz; full S-band coverage requires a separate or dual-band antenna and is currently used mainly inside India.
Need an antenna for these bands?
GNSource manufactures GNSS antennas for every band shown above — from compact L1 survey helices to multi-frequency geodetic choke rings, anti-jamming CRPA arrays, and aviation-grade L1/L5 modules. Tell us your target signals and platform; an engineer will respond within 24 hours.
36 signals · 7 constellations