The GT-88 is a Multi GNSS receiver that outputs high stability and high accuracy time pulse (1PPS). By improving carrier smoothing, optimizing the combination of used satellites, and significantly improving the position estimation algorithm, we achieve a single band 1PPS stability of less than 4.5ns (1σ). Since costly multi band receivers and multi band antennas are not required, the total cost can be greatly reduced.
The GT-88 delivers excellent performance not only in ideal environments with open skies, but also in urban areas with multipath. Our advanced “Dynamic Satellite Selection ™*” (DSS) algorithm appropriately selects and uses high-quality satellite signals and minimizes the egradation of time stability. Ideal for mobile base stations and PTP grand master clocks installed in urban areas.
* a new satellite signal selection algorithm developed by NTT
The main applications of GT-88 include 5G mobile base stations, police radios, emergency services radio systems, train radios, and time servers. Furuno’s GT series is also installed in seismographs in Japan, an earthquake prone country.
| Weight | 10 g |
|---|---|
| Dimensions | 12.2 × 16 × 2.8 mm |
| Manufacturer | Furuno |
| Region | Global |
| GNSS Reception Capability | GPS L1C/A, GLONASS L1OF, Galileo E1B/E1C, QZSS L1C/A, QZSS L1S, SBAS L1C/A |
| GNSS Concurrent Reception | 32 channels |
| Sensitivity | GPS/ Tracking: > 162 dBm, Acquisition: > 148 dBm, GLONASS/ Tracking: > 158 dBm, Acquisition: > 144 dBm, Galileo *3/ Tracking: > 146 dBm, Acquisition: > 136 dBm, QZSS/ Tracking: > 147 dBm, Acquisition: > 131 dBm |
| 1PPS Stability | < 4.5 ns < 4.5 ns (1 |
| 1PPS Accuracy | < +/- 40 ns (vs UTC) |
| 1PPS Resolution | +/- 1.75 ns |
| Clock Configurable Range | 10 Hz to 40 MHz |
| TTFF | Hot Start: <5 sec |
| Interfaces | UART, Time Pulse (1PPS), Clock |
| Package Form Factor | 24Pin LCC (Leadless Chip Carrier) |
| Power Voltage | DC 3.3 V |
| Power Consumption | < 68 mA |
| Operating Temperature | -40ºC to +85ºC |
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