Multi-GNSS Tracking
200+ channels across GPS L1/L2/L5, GLONASS L1/L2/L3, Galileo E1/E5/E6, BeiDou B1/B2/B3 and IRNSS L5/S.
MULTI-FREQUENCY · MULTI-CONSTELLATION GNSS
Multi-Frequency GNSS Receiver (MF-GNSS-300) for Precision Positioning and Timing
Compact, Multi-Constellation GNSS Receiver Built for Mission-Critical Timing
The MF-GNSS-300 is a multi-frequency, multi-constellation GNSS receiver designed for high-precision positioning and timing in demanding industrial environments. It simultaneously tracks GPS, GLONASS, Galileo, BeiDou and IRNSS, also known as NavIC, on 200 or more channels, achieving 5 metres or better 3D RMS accuracy with sub-second re-acquisition. A 0.1 ppb Rubidium oscillator maintains Stratum-0 holdover when satellite signals are unavailable, making it a dependable choice for power, telecom, defence, broadcast and railway systems.
Centimetre-level accuracy, 5 m or better 3D RMS open sky
0.1 ppb Rubidium oscillator, Stratum-0 holdover
1PPS and 10 MHz frequency reference output
200 or more channels, simultaneous satellite tracking
RS232, USB and Ethernet interfaces
FCC, CE and RoHS certified. IP65/IP67 rated
Key Features
Built for Uninterrupted Precision Timing
Six core capabilities keep your positioning and timing infrastructure accurate, resilient and easy to integrate, from substations to signalling rooms.
Centimetre Accuracy
5 m or better 3D RMS open sky, with multipath mitigation on both antenna and baseband processing sides.
Rubidium Holdover
Stratum-0 frequency reference at 0.1 ppb stability, keeps your timing alive when GNSS drops.
RAIM Integrity
Receiver Autonomous Integrity Monitoring flags faulty satellite measurements in real time.
Hardened and Compact
170 x 160 x 35 mm, 1.5 kg, IP65/IP67, minus 40C to plus 85C operating, 18,000 m altitude rated.
Future-Proof Channels
Software-upgradeable for new GNSS signals, no hardware swap needed as constellations modernise.
Matching the GNSS Receiver (MF-GNSS-300) to Your Deployment
The same receiver core supports three common deployment patterns. Choose the configuration that fits your site.
01
Standalone Timing Reference
For a single substation, tower site or lab. One MF-GNSS-300 feeds 1PPS and 10 MHz directly to a local device over RS232, USB or Ethernet. Fastest to commission, with the lowest cabling overhead.
02
Networked Multi-Site Reference
For campuses and multi-building facilities. The MF-GNSS-300 output distributes over Ethernet to NTP or PTP servers and multiple downstream clocks, keeping every site on one traceable time source.
03
High-Availability Redundant Pair
For mission-critical rooms where holdover cannot lapse. Two MF-GNSS-300 units run in parallel, each holding Stratum-0 through its own Rubidium oscillator, so a fault on one unit never breaks synchronisation.
Where precision timing matters
One Fix, Five Critical Industries
A single position-time packet leaves the satellite constellation, locks into the MF-GNSS-300, and fans out continuously to the systems that depend on it.
MF-GNSS-300
Rubidium 0.1 ppb · Locked
- Smart Grid
- Telecom
- Defence
- Broadcast
- Rail
Smart Grid and Power
Sub-microsecond time-tagging
Precise time-tagging keeps phasor measurement units aligned across substations for accurate fault location.
From Orbit to Output: How the GNSS Receiver (MF-GNSS-300) Delivers Timing
A live position, velocity, and time packet travels from the satellite constellation to your infrastructure. The system tracks five constellations and uses a Rubidium oscillator for discipline. Data is distributed through Serial, USB, and Ethernet connections.
- 01Receive
200+ channel lock on GPS, GLONASS, Galileo, BeiDou and IRNSS. Cold start under 60 seconds, re-acquisition under 1 second.
- 02Discipline
The 0.1 ppb Rubidium oscillator disciplines raw GNSS time to a stable Stratum-0 reference and holds over through signal outages.
- 03Distribute
1PPS pulse, 10 MHz reference and NMEA/RINEX data are distributed simultaneously over RS232, USB and Ethernet.
GPSGLONASSGalileoBeiDou
GNSS
signals
MF-GNSS-300
Rubidium · 0.1 ppb
RS232USBEthernet1PPS / 10 MHz
Applications
Deployed Across Precision-Dependent Industries
The GNSS Receiver is used in industries that require precise results. It supports operations that depend on accurate time and position data. The device provides access to multiple satellite constellations and maintains reliable performance during signal loss.
Power Utilities
Telecom Networks
Data Centers and IT
Banks, Finance & Trading
Audio Video & Broadcast
Industrial Automation
Railways & Metros
Defence & Aerospace
Research Institutes & Observatories
Complete Technical Specifications
Full electrical, RF and protocol details for the MF-GNSS-300 multi-frequency GNSS receiver.
Receiver
| Parameter | Specification |
|---|---|
| Model | MF-GNSS-300 |
| Constellations | GPS, GLONASS, Galileo, BeiDou, IRNSS, SBAS |
| Frequency Bands | L1 (1559-1610 MHz), L2 (1217-1300 MHz), L5 (1164-1215 MHz), S (2483.5-2500.3 MHz) |
| GPS Signals | L1 C/A, L1C, L2C, L5 |
| GLONASS Signals | L1 C/A, L2 C/A, L3 CDMA |
| Galileo Signals | E1, E5A, E5B, E5AltBOC, E6 |
| BeiDou Signals | B1I, B1C, B2I, B2A, B2B, B3I |
| IRNSS Signals | L5 (SPS), S (SPS) |
| SBAS | L1 |
| Channels | 200+ simultaneous satellite tracking |
| PVT Mode | Multi-constellation hybrid mode, user-selectable Single, Dual, Triple, Quad frequency |
| Cold Start | Under 60 seconds |
| Warm Start | Under 35 seconds |
| Re-acquisition | Under 1 second |
| Position Accuracy | 5 m or better, 3D RMS, open sky, supplied antenna |
| Position Update Rate | 1 Hz or faster |
| Oscillator | Rubidium, 0.1 ppb, Stratum-0 holdover |
| RAIM | Receiver Autonomous Integrity Monitoring |
| Max Velocity | 515 m/sec |
| Max Altitude | 18,000 m |
| Max Acceleration | 4g or more |
FAQ
Frequently Asked Questions
Ready to Deploy Precision GNSS?
Talk to a Sertel engineer for a tailored configuration, datasheet and pricing for the MF-GNSS-300.