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Our new digital signal processor (DSP) -based receivers elevate Loran performance standards to an unprecedented level, making the CsSync receiver the ideal complement to GPS whenever complete availability, reliability, and integrity are required.
Our patented Linear Averaging Digital (LAD) Loran technology provides simultaneous tracking of up to 40 Loran transmitters with overall signal-to-noise improvement at least 20 dB better than conventional receivers. Incorporating adaptive filtering, digital noise blanking, and DSP techniques, the CsSync receiver provides hundreds of thousands more square miles of coverage and virtually complete penetration into the densest urban environments, regardless of ambient weather or interference conditions.
The CsSync offers true Stratum 1 timing performance indefinitely, including independent UTC generation, and can operate in deep urban canyons and densely-foliaged areas where line-of-sight blockage prevents GPS penetration. Cellular base stations can now be located where they are needed, with minimum installation requirements, and the CsSync offers indefinite system redundancy and reliability wherever GPS blockage, interference, or jamming might occur. Short E-field and small H-field antenna options minimize the installation profile.
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Applications
Time and frequency applications
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Outputs
2 BNC connectors that are software-configurable to provide (1) 1.544,
2.048, 5 and 10 MHz frequency output ports and (1) PPS, 5V TTL,
or (2) of one type.
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Interface
Data available in NMEA 0183, RTCM SC104 Type 9, and ASCII formats
via RS-232 port.
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Availability
Contact UrsaNav for pricing and availability of this product.
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Technical Specifications Table |
Receiver |
Signal Level |
30-120 dB uV/M |
| Interference Cancellers |
24 automatic, variable Q notches |
Tracking Capability |
Up to 40 stations1, 12 chains simultaneously tracked, tracks
CHAYKA (Russian Loran) |
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Performance |
Acquisition Time at 25° C |
15 s typical TTFF2- warm (OCXO at temperature)
120 s typical TTF- cold start to first data |
Timing Accuracy |
<100 ns with respect to UTC (locked, 1 sigma) |
Independent PositionCalculation Rate |
1 s position update rate (typical) |
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Antennas |
E-Field
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Active antenna: 45.7 cm (18”) height, cable lengths to 457 meters (1,500
feet) with 24-gauge cable (standard), and 915 meters (3,000 feet) with
18-gauge cable (custom). |
H-Field
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Dome diameter: 199.0 mm, 7.84 inches
Dome height: 96.6 mm, 3.80 inches
Dome height including 1"-14 mast thread: 128.4 mm, 5.06 inches
Cable lengths to 152 m (500 feet) with 24 gauge cable (standard), and 305 m
(1,000 feet) with 18 gauge cable (custom). |
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Power |
Requirements |
12-20 VDC 100 mV p-p ripple |
Consumption |
20 W nominal |
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Physical |
Dimensions |
44 x 213 x 203 mm (1.72 x 8.37 x 8.0 inches) |
Weight |
0.9 kg (2 lbs.) |
Connectors |
2 DB-9s for serial ports; DB-9 for antennaBNCs for frequency
and 1 PPS outputs |
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Communications |
Outputs |
(1) 1.544, 2.048, 5 and 10 MHz frequency output
ports and (1) PPS, 5V TTL or (2) of either of the above; (2)
RS-232 serial communications ports |
Data Message |
TDs, TOAs, latitude, longitude, time, Eurofix data, NMEA
0183 V2.3, RTCM SC104 Type 9 DGPS |
Alarms |
Station blink, ECD skywave uncertainty, cycle slip, SNR |
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Environmental |
Operating Temperature |
-25°C to 50°C |
Storage Temperature |
-40°C to 85°C |
Humidity |
To 95% non-condensing |
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1 Dual rated station = 2 stations |
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3 Neglecting cable delay and dependent on USCG
control |
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Precision
Timing Receivers: The CsSync Series
67kb 
Cesium-like
(Stratum 1) timing performance
