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Multi-Constellation GNSS Receiver for More Satellites and Steadier RTK

A multi-constellation GNSS receiver tracks GPS, Galileo, GLONASS, BeiDou, QZSS and NavIC together, so it sees several times more satellites than GPS alone. Eview builds its HB6, HB56, HB62, HB10 and HB59 receivers this way, powered by Septentrio modules with 448 and 544 channels.

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6
Constellations tracked
789
Channels (mosaic-G5)
544
Channels (AsteRx-m3 Pro+)
0.6 cm
RTK horizontal + 0.5 ppm
How it works

How multi-constellation tracking helps

More satellites in view
Tracking six systems typically gives several times more visible satellites than GPS alone. More satellites mean better geometry and more measurements for the position solution.
Steadier RTK in obstructed sites
When buildings, trees or machinery block part of the sky, the extra satellites help RTK reach and keep a fixed solution. See RTK GNSS.
Multi-frequency signals
Eview receivers track two to four frequency bands per system. Multi-frequency removes most ionospheric error and helps the receiver resolve ambiguities faster.
Resistance to interference
A narrowband jammer often hits one band. With several systems and bands, AIM+ can suppress it while other signals keep tracking. See anti-jamming GNSS.
Galileo authentication
Tracking Galileo E1 lets mosaic-X5 and mosaic-G5 receivers use OSNMA to authenticate navigation data. See OSNMA anti-spoofing.
Integrity checks
RAIM+ compares measurements across satellites and systems to detect and exclude faulty ones. See RAIM+ integrity monitoring.
The six systems

GNSS constellations tracked by Eview receivers

SystemOperatorCoverageSatellitesSignals tracked by Eview receivers
GPSUSAGlobalAbout 31L1, L2, L5
GalileoEuropean UnionGlobalAbout 30 usableE1, E5a, E5b, E5 AltBOC, E6
GLONASSRussiaGlobal24-satellite designL1, L2, L3
BeiDouChinaGlobalBDS-3 global system completed in 2020B1I, B1C, B2a, B2I, B2b, B3I
QZSSJapanRegional5 in serviceL1, L2C, L5
NavICIndiaRegional7-satellite designL5

Signal lists vary by module. The full list above is the mosaic-X5. The mosaic-H is dual-band and does not track L5, E6 or NavIC. The mosaic-G5 is quad-band across GPS, GLONASS, BeiDou, Galileo and QZSS. Ask for the datasheet of the receiver you plan to use.

Recommended products

Eview multi-constellation receivers

ProductBest forKey specs
HB6Drones and robotsmosaic-X5, 448 channels, all six systems, 100 Hz, 45 g, USB-C, microSD
HB62RTK base stationmosaic-X5, NTRIP, Ethernet, 64 GB logging, IP67, 9–36 V
HB50Compact, low-power rovermosaic-G5 P3, 789 channels, quad-band, 20 Hz, 50 g, 0.44 W
HBEV11Base or rover in one unitmosaic-G5 smart antenna, one M12 cable, Galileo HAS
HB10Heading and fast outputAsteRx-m3 Pro+, 544 channels, dual-antenna heading 0.15°, 100 Hz
HB6 ProHeading on small platformsmosaic-H dual-band, heading 0.15° / pitch or roll 0.25° at 1 m, 45 g

All products are quote-based. For a complete datasheet, email sales@gnss-solutions.com. Browse all box receivers and multi-band antennas.

Use cases

Where multi-constellation GNSS matters

Survey and GIS
More satellites under trees and near buildings for stakeout and mapping. See survey and GIS.
Construction and mining
Steadier RTK in open pits and next to tall structures. See construction and mining.
Autonomous vehicles
Better availability on roads lined with buildings and trees. See autonomous vehicles.
Drones and UAVs
More satellites when the airframe banks and part of the sky is masked. See UAV and drone RTK.
Precision agriculture
Consistent RTK along tree lines and field edges. See precision agriculture.
Robotics
Outdoor robots working near walls and under cover. See robotics GNSS.
Integration

How to choose a multi-constellation receiver

Match the antenna
A receiver can only track the bands its antenna receives. The EV288 covers L5, E6 and L-band. See how to choose a GNSS antenna.
Check the bands you need
Choose mosaic-X5 or AsteRx-m3 Pro+ for E6 and NavIC L5. Choose mosaic-G5 for quad-band tracking at low power. Choose mosaic-H for dual-band heading.
Corrections and logging
RTCM v3 corrections in, NMEA and SBF out, with RINEX for post-processing. See NTRIP, RTCM and RINEX.
FAQ

Multi-constellation GNSS: frequently asked questions

What is multi-constellation GNSS?

It is a receiver that tracks satellites from more than one navigation system at the same time, such as GPS, Galileo, GLONASS and BeiDou. It combines all of them in one solution. This typically gives several times more visible satellites than GPS alone, which improves availability, geometry and RTK performance.

How many constellations are there?

There are four global systems: GPS (USA), Galileo (European Union), GLONASS (Russia) and BeiDou (China). There are two regional systems: QZSS (Japan) and NavIC (India). Eview receivers built on the mosaic-X5 and AsteRx-m3 Pro+ track all six. The mosaic-G5 and mosaic-H track the four global systems plus QZSS.

Is it more accurate than GPS alone?

In open sky, a good GPS-only RTK solution can already reach centimetre level. The main gain is availability and reliability. With more satellites, the receiver fixes faster, holds the fix in obstructed places and can exclude bad measurements. Eview receivers specify RTK at 0.6 cm + 0.5 ppm horizontal and 1 cm + 1 ppm vertical.

What is the difference between multi-constellation and multi-frequency?

Multi-constellation means tracking several satellite systems. Multi-frequency means tracking more than one signal band from each satellite, such as L1, L2 and L5. Multi-frequency removes most ionospheric error and speeds up RTK. Eview receivers do both: dual-band on mosaic-H, quad-band on mosaic-G5 and full multi-frequency on mosaic-X5.

Does jamming affect all constellations?

A wideband jammer can affect every system sharing a band, so more constellations alone do not stop jamming. A narrowband jammer often hits one band, and other bands keep tracking. Septentrio AIM+, on by default in every Eview receiver, suppresses narrowband, wideband, chirp and pulsed interference. See anti-jamming vs anti-spoofing.

Related reading

Septentrio mosaic-X5 receiversHow accurate is a Septentrio GNSS receiver?How to choose a GNSS receiver for surveying

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