描述
Fury GPSDO通过在一个低成本模块中结合极高的GPS定时性能和最新的OCXO技术,提供了超高的频率精度。Fury作为一种非常高的性能、低相位噪声、低ADEV噪声和非常高的保持性能参考是非常有用的。Fury在实验室条件下提供1PPS、各种10MHz和NMEA输出的效果非常好,DOCXO变体在拒绝GNSS的环境中或在没有GNSS信号的长时间内提供了卓越的保持漂移能力。
特点
- 无需校准
- 提供比铷钟参考更高的稳定性
- 测量间隔大于1秒时,Allan方差可能小于1E-011
- 标准相位噪声在>10Hz偏移时小于125dBc
- 功耗小于5W,工作电压11V到14V,支持电池供电
- 自2019年,Fury GNSS接收机升级为JLT M12M接收机,支持GPS/Globass/Gileo/BeiDou和QZSS
- 具有老化和温度补偿的保持模式
- 告警输出
- 可通过使用LCD和键盘进行控制,或通过使用标准SCPI命令的RS-232控制进行控制。设置自动存储在非易失性存储器中
- 正弦波和CMOS输出是标准配置
- GPSCon Windows图形化软件和SNTP服务器软件兼容
- 可作为OEM模块或铝制外壳封装提供
- Fury可根据稳定性/成本要求订购2种不同的选项:
- 单 OCXO。具备非常好性价比。
- 双 OCXO。具备更高的稳定度和更好的保持性能。
技术参数
General | Dimensions | 100mm x 100mm x 25mm OEM PCB. 140mm x 170mm x 58mm Desktop Enclosure |
Applications | In-House Frequency Standard. Military and Industrial Applications. Battery operation | |
1PPS Output | Connector | BNC (Desktop), Molex 100mil type connector (OEM PCB) |
Output Voltage | 3.3V TTL/CMOS compatible with <2ns RiseTime. 50Ohm terminated or open ended | |
10MHz Sine Wave | Connector | BNC (Desktop), Molex 100mil type connector (OEM PCB) |
Output Power | +6dBm +/-3dBm into 50 Ohms | |
Stability | better than 5E-013/24 hours when locked to GPS (Double Oven OCXO) | |
Holdover | better than 7 microseconds/24 hours (better than 8.1E-011/24 hours average) DOCXO | |
Phase Noise
(AT-cut OCXO)
Jitter Harmonics |
1Hz -90dBc/Hz
10Hz -122dBc/Hz 100Hz -140dBc/Hz 1KHz -155dBc/Hz 10KHz -155dBc/Hz 100KHz -157dBc/Hz 1MHz -160dBc/Hz 380 Femtoseconds RMS (measured with Agilent E5052B) < -50dBc/Hz |
|
10MHz CMOS/TTL | Connector | BNC |
Output Voltage | 3.3Vpp or 5Vpp Square Wave. Performance similar to 10MHz Sine Wave Output | |
1PPS GPS-FailSafe™ Input | Description | External 1PPS input with auto-switching in case internal GPS fails, or goes into holdover. Allows fails-save GPS operation, or external (noisy) Atomic backup references etc. |
Connector | Molex 100mil type | |
Input Voltage | TTL, CMOS 3.3V/5V | |
Timing Accuracy | GPS Locked | Better than +/-20ns UTC offset 1-Sigma (RMS) |
Holdover Mode | better than 7 microseconds/24 hours (better than 8.1E-011/24 hours average) DOCXO | |
Xtal Compensation | Automatic OCXO aging and temperature coefficient measurement and compensation | |
GPS Specification | Sat Signal | 12-Channel GPS L1, 1575.42MHz, C/A 1.023MHz Timing-Optimized Receiver |
Cold Start | Auto Survey mode, or 3D-Fix mode. 15 Minutes warmup to better than 1E-09 (DOCXO) | |
Status LED’s Alarm Output | LED Indicators | 1PPS cadence indicator LED. Lock Indicator LED |
ALARM Output | 3.3V TTL, can drive LED. System Error, GPS error, and PLL unlock alarm. | |
Serial Interface | Connector | RS-232. 9600 to 115200 Baud |
Protocol | SCPI-99 Command Interface. Industry Standard Commands for drop-in replacement | |
Environmental Characteristics | Temperature | 0-50°C (single OCXO), 0-70°C (double OCXO) |
Power | 11.0V to 14.0V DC less than 4.5W at 25°C ambient | |
NOTE | All specifications typical and quoted at 25.0°C after 3 days operation with GPS receiption in still air with < 1°C change with +12.0V power supply unless otherwise specified. |