Holybro H-RTK mosaic-G5 (Dual Antenna Heading)
£589.00 Inc. VAT
The Holybro H-RTK mosaic-G5 is a high-precision dual-antenna RTK GNSS receiver offering centimetre-level positioning and GNSS-based heading for UAVs, robotics and autonomous systems.
In stock|Next shipping: 02/09/2026
The Holybro H-RTK mosaic-G5 is a compact, high-precision dual-antenna RTK GNSS receiver designed for UAVs, robotics, and autonomous systems. Built around the Septentrio mosaic-G5 P3H module, it delivers centimetre-level RTK positioning together with accurate GNSS-based heading and pitch or roll measurements.
Dual-antenna GNSS heading reduces reliance on magnetic compasses, making it particularly useful on aircraft where motors, power wiring, metallic structures, and other sources of magnetic interference can affect compass accuracy. An integrated RM3100 magnetometer provides an additional backup heading source.
The mosaic-G5 supports quad-band GNSS positioning in single-antenna operation and tri-band heading in dual-antenna operation, providing broad multi-constellation coverage. Compared with the higher-end H-RTK mosaic-H, the G5 offers a more cost-effective solution focused on high-accuracy positioning and dual-antenna heading, while retaining the same quoted centimetre-level RTK and heading accuracy. The mosaic-H remains the better choice where features such as higher measurement rates, Ethernet/web configuration, OSNMA, raw measurements and broader protocol support are required.
Septentrio’s advanced GNSS+ technologies further improve reliability in demanding environments. AIM+ provides jamming and spoofing detection with automatic interference mitigation, while LOCK+, APME+, IONO+ and RAIM+ improve tracking resilience under vibration, multipath and ionospheric disturbances.
The receiver also features onboard microSD data logging, USB-C and dual UART connectivity, and is supplied with two high-performance GNSS antennas, antenna mounts and connection cables. A rugged CNC-machined aluminium enclosure protects the receiver while maintaining a compact form factor suitable for integration into UAV and autonomous platforms.
Features
- Best-in-class centimeter-level RTK positioning accuracy
- Advanced Septentrio GNSS+ technologies for enhanced resilience against interference, multipath, vibration, and ionospheric disturbances
- Quad-band single-antenna positioning and triple-band dual-antenna heading
- Command-selectable single- or dual-antenna operation
- Compact design with a rugged CNC-machined aluminum enclosure
Setup Guide & Reference Links:
Setup Guide & Reference Links:- PinoutÂ
- Dimension
- Setup & Getting Started (Ardupilot)
- Setup & Getting Started (PX4)
- Septentrio RXTools (GNSS receiver control and analysis software)
Comparison Between mosaic-H & mosaic-G5 P3H
| mosaic-H | mosaic-G5 P3H | |
| Bands supported | Â GPS: L1, L2
Galileo: E1, E5b GLONASS: L1, L2 Beidou: B1, B2, B3 QZSS: L1C/A, L1C/B, L2 SBAS: Egnos, WAAS, GAGAN, MSAS, SDCM (L1) |
GPS: L1C/A,L1C, L2C, L2P(Y), L5
Galileo: E1, E5a, E5b, E6 GLONASS: L1CA, L2CA, L2P, L3CDMA Beidou: B1I, B1C, B2a, B2I, B2b, B3I QZSS: L1C/A, L1C/B, L2C, L5, L6 (future update) |
| RTK Performance | Horizontal: 0.6cm + 0.5ppm
Vertical: 1cm + 1ppm |
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| Other Positioning Modes Accuracy | Standalone: 1.2m
DGNSS: 0.4m SBAS: 0.6m |
Standalone: 1.2m
DGNSS: 0.4m |
| Velocity Accuracy | 3cm/s | |
| Heading accuracy | 0.15deg (1m baseline) | |
| Maximum update rate | Measurements only: 100Hz
Standalone: 50Hz RTK: 20Hz |
20Hz |
| Latency | <10ms | |
| Acquisition | 33dBHz | 30dBHz |
| Time Precision | PPS resolution: 5ns
Event accuracy: <20ns |
PPS resolution: 1.4ns
Event accuracy: <3ns |
| Anti-jamming and anti-spoofing | AIM+Â Advanced functionality with jamming and spoofing detection and automatic interference mitigation
LOCK+Â superior tracking robustness under heavy mechanical shocks or vibrations APME+Â a posteriori multipath estimator for code and phase multipath mitigation IONO+Â provides advanced protection against ionospheric disturbances. RAIM+Â receiver autonomous integrity monitoring |
|
| OSNMA Support | Yes | |
| Base/Rover | Base and Rover | Rover and Base (with latest firmware) |
| Protocols | NMEA, SBF, RINEX, RTCM, CMR | NMEA, SBF, RTCM input |
| Web interface and Ethernet | Yes | No |
| Raw Measurement | Yes | |
| Product | Holybro H-RTK mosaic-G5 | ||||||||||||
| Receiver | Septentrio mosaic-G5 P3H | ||||||||||||
| Application | Rover
Moving Baseline Rover |
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| GNSS | GPS: L1C/A, L1C, L2C, L2P(Y), L5
GLONASS: L1CA, L2CA, L2P, L3 CDMA Beidou: B1I, B1C, B2a, B2I, B2b, B3I Galileo: E1, E5a, E5b, E6 QZSS: L1C/A, L1C/B, L2C, L5, L6 (future update) |
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| RTK performance | Horizontal accuracy 0.6 cm + 0.5 ppm
Vertical accuracy 1 cm + 1 ppm |
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| Positioning accuracy |
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| GNSS attitude accuracy |
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| Time to first fix | Cold start: ≤ 35s
Warm start: ≤ 10s Re-acquisition: 1 s |
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| Latency | < 10 ms | ||||||||||||
| Magnetometer (Compass) | RM3100 | ||||||||||||
| Antennas Peak Gain (MAX) | 2dBi | ||||||||||||
| LNA Gain | 33±2dB | ||||||||||||
| Time precision | PPS resolution: 1.4 ns
Event accuracy: < 3 ns |
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| Maximum update rate | Position: 20Hz | ||||||||||||
| Ports | Port 1: USB Type-C
Port 2: UART1 (GH1.25 10pin) Port 3: UART2 (GH1.25 6pin) |
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| Antenna Connection Type | Board: SMA female
Antenna: SMA male |
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| Baud rate: (Adjustable) | 230400 5Hz default | ||||||||||||
| Working voltage: | 4.75V~5.25V | ||||||||||||
| Power Consumption | 1.4 W typ(without antennas)
1.8 W max |
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| Operating Temperature | -40℃ to 85℃ | ||||||||||||
| Dimension | Board: 48*52.3*22mm
Antenna Diameter: 40mm Antenna height: 76mm |
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| Weight | 48.5g (without antennas) | ||||||||||||
| Advanced Technologies inside | AIM+Â Advanced functionality with jamming and spoofing detection automatic interference mitigation
LOCK+Â superior tracking robustness under heavy mechanical shocks or vibrations APME+Â a posteriori multipath estimator for code and phase multipath mitigation IONO+Â provides advanced protection against ionospheric disturbances. RAIM+Â receiver autonomous integrity monitoring |
Included:
- 1x H-RTK Mosaic
- 2x High Performance Antenna
- 2x Antenna Mount for H-RTK
- 2x SMA Cable(40CM)
- 2x GH 10P Cable
- 1x GH 6P Cable
- 1x GH 10P to 6P Cable
- 1x USB-C Cable
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SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
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Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
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International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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