 |
|
|
|
|
| |
Our new 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.
Locus' 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 most dense 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 installation profile.
|
|
| |
Applications
Time and frequency applications
|
| |
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.
|
| |
Interface
Data available in NMEA 0183, RTCM SC104 Type 9, and ASCII formats
via RS-232 port.
|
| |
Availability
Available now, order directly from Locus.
|
| |
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) |
|
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) |
|
Antennas |
E-Field
|
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
|
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). |
|
Power |
Requirements |
12-20 VDC 100 mV p-p ripple |
Consumption |
20 W nominal |
|
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 |
|
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 |
|
Environmental |
Operating Temperature |
-25°C to 50°C |
Storage Temperature |
-40°C to 85°C |
Humidity |
To 95% non-condensing |
|
| |
|
| |
1 Dual rated station = 2 stations |
|
|
| |
3 Neglecting cable delay and dependent on USCG
control |
|
|
|
|
| |
Precision
Timing Receivers: The CsSync Series
How
to Buy
67kb 
Cesium-like
(Stratum 1) timing performance
