Imagine RACKMOUNT KIT-1RU-HOLDS UP TO 2 X GPS-3903...
Imagine RACKMOUNT KIT-1RU-HOLDS UP TO 2 X GPS-3903 RECEIVERS|GPS-3902-RM; Rackmount Kit, holds up to two GPS-3903-2, GPS-3904 receivers
Rack mount kit, holds up to 2 GPS-3903, GPS-3904 receiversThe Videotek GPS-3904 GPS antenna and receiver option is recommended for use with the VSG-4MTG Master Timing Generator and the VSG-4TSG Test Signal Generator, for highly stable video, audio and time code reference signals and accurate time and date information. High stability is provided by the receiver's internal, temperature controlled 10 MHz CW (Carrier Wave) output and by using the most accurate source of time used in the public domain — a system of 24 satellites that provides complete coverage in any part of the world with information on time, date and position.
Features
- For video, audio and time code reference and time/date applications
- Recommended for use with the VSG-4MTG Master Timing Generator and the VSG-4TSG Test Signal Generator
- Separate antenna and receiver
- Used to remotely lock multiple locations to a common time and date reference
Details
A 75 ft. cable is provided for the antenna to receiver. If a longer distance cable is required, there are two recommendations:
- For cable runs up to 100 M, the TIMES MICROWAVE SYSTEMS LMR-400 flexible low loss communications coax cable and EZ-400-TM (stock code: 3190-650) and Type TNC PLUGEZ-400-TM connectors are recommended.
- To amplify the signal between the antenna and receiver, the GPS networking LA20RPDC is recommended. The LA20RPDC is a one input, one output device with a nominal 20 dB gain block. In the default configuration, the RF output (J1) passes DC from the connected GPS receiver through the amplifier to the active antenna, allowing the GPS receiver to power both the antenna and the LA20RPDC amplifier.
The GPS-3904 receiver includes a cable to connect the RS-232 serial data for time and date from the receiver to the VSG-4CSD and VSG-4TCG. Two BNC connections provide 10 MHz and PPS (Pulse Per Second) interfaces.
There is an optional rack mount that can hold up to two receivers.
Specifications
Specifications and designs are subject to change without notice
| 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 100 Hz, -135 dBc/Hz 1 kHz, -135 dBc/Hz 10 kHz, -145 dBc/Hz 100 kHz, -145 dBc/Hz |
| Operational Limits | Altitude <11.2 miles (18 km) |
| Physical Characteristics | |
|---|---|
| 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 | |
|---|---|
| Environmental | |
| Operating Temperature | -40 to 185 F (–40 to 85 C) |
| Storage Temperature | -40 to 212 F (–40 to 100 C ) |
| 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) |
| Physical Characteristics | |
|---|---|
| Dimensions (DxH) | 3.05 x 2.61 in. (77.5 x 66.2 mm) |
| Weight | 6 oz (170 g) |
| Enclosure | Off-white plastic |
| Connector | TNC |
| Mounting | 1 in.-14 thread or ¾ in. pipe thread |
| Technical Performance | |
|---|---|
| Prime Power | 5 VDC (±10%) |
| 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 fo ±20 MHz: 7 dB minimum fo ±30 MHz: 12 dB minimum fo ±50 MHz: 20 dB minimum fo ±100 MHz: 30 dB minimum |
| Azimuth Coverage | 360 (omni-directional) |
| Elevation Coverage | 0 to 90 elevation (hemispherical) |
| Manufacturer | Imagine Communications |
|---|
