Signal Processing Systems : Related Signal Processing Products : Imagine Communications - Videotek® GPS-3904

GPS Receiver and Antenna Systems

Model: Videotek® GPS-3904

Compatible with VSG-4CSD clock system driver and VSG-4MTG master timing generator modules
Separate antenna and receiver for mounting flexibility
Used to remotely lock multiple reference systems
Continuous connection and update
Hardware features

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The GPS-3904 and standalone GPS receiver/antenna allow the CSD-3901/CSD-3902 Master Clock Driver , the VSG-410 and MTG-3901 Master Timing Generator to provide outputs with great accuracy by using the most accurate source of time used in the public domain - a system of 24 satellites provides complete coverage in any part of the world with information on time and position. This makes the CSD-3901/2 and MTG-3901 totally independent from telephone or radio receiver standards.

Compatible with VSG-4CSD clock system driver and VSG-4MTG master timing generator modules
Separate antenna and receiver for mounting flexibility
Used to remotely lock multiple reference systems
Continuous connection and update
Hardware features
A single, printed circuit board containing
A quality ovenized oscillator
A 12-channel GPS receiver
Control circuitry
Easy calibration for different cable lengths
Output
10 MHz reference signal output via BNC connector
One PPS output with an over-determined solution synchronized to GPS
UTC time

GPS Receiver:
Environmental:
Operating Temperature: 32° to 140° F (0° to +60° C)
Storage Temperature: -40° to 185° F (-40° to +85° C)
Operating Humidity: 95% non-condensing
Altitude: 11.2 miles (18 km) maximum
Technical:
Prime Power: 24 VDC
Power consumption (nominal): 15 (cold) to 10 W (steady state)
Serial Ports: RS-232
I/O Protocol Options: Trimble standard interface protocol (TSIP) @ 9600 baud, 8-Odd-1
Performance:
General: L1 frequency, C/A code (SPS), 12-channel continuous tracking receiver
Update Rate: 1 Hz
1 PPS (static): 15 ns (one sigma)
10 MHz: 1.16 x 10-12 (one day average)
Harmonic Level: -40 dBc maximum
Spurious: -70 dBc maximum
Phase Noise: 10 Hz, -120 dBc/Hz
Operational Limits: Altitude <11.2 miles (18 km)
Physical Characteristics:
Dimensions::
Metal Enclosure (H x W x D): 2 x 4 x 5 in. (40 x 102 x 127 mm)
Mounting Flange: 6 mounting holes for M3 screws. Maximum depth 12 mm
Weight: 0.628 lbs (0.285 kg)
Connectors::
Antenna: BNC
10 MHz Output: BNC
PPS Output: BNC
Serial Data: 9 pin D-sub
Power: 2-pin locking push pin type adapter (Molex)
GPS ANTENNA:
Vibration: 10 to 200 Hz log sweep
3 g (Sweep time 30 minutes) 3 axes:
Shock: 50 g vertical, 30 g all axes
Humidity: Mil-STD-810E
Corrosion: 5% salt spray
Waterproof: Immersion to 3.3 ft (1 m)
Dimensions (DxH): 3.05 x 2.61 in. (77.5 x 66.2 mm)
Enclosure: Off-white plastic
Connector: TNC
Mounting: 1 in.-14 thread or ¾ in. pipe thread
Technical performance:
Power Consumption: 30 mA max.
Output Impedance: 50 ohms
Frequency: 1575.42 MHz ±1.023 MHz
Polarization: Right-hand circular polarization (RHCP)
VSWR: 2.0 maximum
Axial Ratio: 90°: 4.0 dB maximum; 10°: 6 dB maximum
Gain: 35 dB ±3 dB
Noise: 3.3 dB maximum (25° ±5° C)
Pass-band Width: 50 MHz
Out of Band Rejection: fo=1575.42 MHz
Azimuth Coverage: 360° (omni-directional)
Elevation Coverage: 0° to 90° elevation (hemispherical)