Compact GPS Timing Module with Integrated Antenna, NMEA and 1PPS Outputs
- Integrated GPS receiver and antenna in a single compact module
- Precise 1PPS timing output for SFN synchronization
- Standard NMEA output for timing and system monitoring
- Optimized for FM SFN transmitter applications
- Low jitter timing for stable network performance
- Fast GNSS acquisition and reliable signal tracking
- Designed for continuous 24/7 operation
- Simple and space saving system integration
GPS-SFN-Lite is designed to deliver precise timing and positioning for FM Single Frequency Network transmitters in a fully integrated form factor. The device combines the GPS receiver and antenna into a single compact module, simplifying installation and reducing system complexity.
It provides standard NMEA data for positioning, time, and status monitoring, along with a precise one pulse per second output synchronized to UTC. The 1PPS signal offers stable and low jitter timing required for accurate SFN synchronization between transmitters.
Optimized for broadcast environments, GPS-SFN-Lite ensures reliable GNSS reception, fast startup, and stable operation for continuous use. Its compact, self-contained design makes it ideal for space constrained installations, embedded transmitter systems, and applications where external antennas and cabling are not desired.
Key benefits include integrated antenna design, precise UTC referenced 1PPS timing, simplified installation, reliable 24/7 operation, and easy integration into FM transmission equipment.
| GNSS constellations | |
| Chipset | uBlox |
| GPS | L1 C/A (1575.42 MHz) |
| QZSS | L1S (SLAS) |
| GLONASS | L1OF (1602 MHz) |
| SBAS | L1 C/A: WAAS, EGNOS, MSAS |
| Sensitivity | |
| Tracking and navigation | -168 dBm |
| Cold start | -148 dBm |
| Hot start | -157 dBm |
| Time To First Fix (TTFF) | |
| Cold start | 29 sec |
| Hot start | 1 sec |
| Accuracy | |
| Position accuracy (CEP) | 2.5 m |
| Velocity accuracy | 0.1 m/s |
| Dynamic heading accuracy | 0.5 deg |
| Time pulse signal | 30 ns RMS; 60 ns (99%) |
| Frequency of time pulse | 1PPS |
| Max navigation update rate | 1-10 Hz |
| Protocol | |
| UBX | Binary, u-blox proprietary |
| NMEA 2.1 / 2.3 | Input/output, ASCII |
| NMEA & 1PPS Interface | |
| Connector | 9 pin Female, D-Sub |
| NMEA Data Signal level | RS-232; 9600 bps |
| 1PPS Signal Level | 3.3 Vp-p |
| Operating conditions | |
| Temperature | -15°C to 55°C |
| Humidity | < 95%, non-condensing |
| Altitude | 0 to 5000m above sea level |
| Dynamics | < 4g |
| Velocity | < 500 m/s |
| Vibration | Sine Sweep, 1G(0-P), 1-150-10Hz each axis |
| Humidity | 95 to 100% RH |
| Weatherproof | IP56 |
| Power | |
| Supply voltage | 5V ±10% |
| Consumption | < 100mA |
| Connector | USB-C |
| Size and Weight | |
| Size | 48 x 18 x 39 mm |
| Weight (without Cable) | 55g |
| Cable length | 2 m |
| Mounting | Magnetic base |