Stanford SR625 频率计数器 (50 MHz - 2.2 GHz)
制造商: Stanford Model: SR625 保障: 12 Month - 报价要求
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Rubidium Timebase:
Frequency: 10 MHz
Accuracy at shipment: ±5 × 10-11
One day stability: 4 × 10-11/day
Long term drift: <5 × 10-11/month, <5 × 10-10/year
Short term stability:
1 s Allan variance: <2 × 10-11
10 s Allan variance: <1 × 10-11
100 s Allan variance: <2 × 10-12
Warmup interval: 10 minutes to meet short-term stability specification
Power consumption: 70 W (at warmup), 100/120/208/240 VAC, 50/60×Hz
Output: 10 MHz, 1 Vpp sine wave
Prescaler:
Frequency ratio: 10:1
Input impedance: 50 Ω
Max. input level: +23 dBm
Input freq. range: 50 MHz to 2.2 GHz
Output:
Output load: 50 Ω
Output amplitude: 700 mVpp square wave
Output offset: 500 mV
General:
Size: 17" × 3" × 14.5" (WHL)
Weight: 15 lbs.
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