product
Active Hydrogen Frequency Standard VCH-1005
VCH-1005 Hydrogen Frequency and Time Standard provides the highest frequency stable 5 MHz, 100 MHz and 1 Hz (time scale) output signals with the following characteristics:
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Frequency accuracy (factory calibration) |
±5x10e-13 |
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Frequency corrector: |
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resolution |
1x10e-14 |
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range |
1x10e-10 |
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Frequency stability (Allan variance at 25C°, environ-mental effects are excluded) |
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1 s |
< 3x10e-13 |
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10 s |
< 3x10e-14 |
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100 s |
< 8x10e-15 |
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1000 s |
< 3x10e-15 |
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1 day |
< 3x10e-15 |
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Phase noise (dB/Hz) (at the 5 MHz output): |
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10 Hz |
< -125 |
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100 Hz |
< -140 |
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1000 Hz |
< -150 |
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Magnetic sensitiveness, (1/Oersted) |
< 2x10e-14 |
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Frequency temperature coefficient, (1/°C) |
< 1x10e-14 |
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Operating temperature range, (°C) |
+5 to +40 |
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Power consumption: 220 V 50 Hz AC (VA) |
250 |
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Output signal frequency (MHz): 5, 100
Voltage (rms.) at 50 Ohm load (V): 1± 0.2
Time scale - 1 Hz pulse, pulse width 20 ± 10 µs, rise time < 10ns, positive polarity TTL level at 50 Ohm load.
Manual synchronization to external 1 pps TTL signal with 50 ns accuracy.
Full data monitoring and functions control (local or remote through any network) performs by personal computer (not includes in delivery set).
Application software running under Microsoft Windows' 9x, 2000, XP, is applied.
Expecting lifetime - 10 years.