product
Active Hydrogen Frequency Standard VCH-1003A
Active Hydrogen Frequency Standard VCH-1003A
Operating manual download (Operating manual of VCH-1003A.pdf)VCH-1003A Hysdrogen Frequency and Time Standard provides the highest frequency stable output signals with the following characteristics:
Frequency (MHz) – 5; 100. Voltage at 50 Ohm load (Vrms) – 1 ± 0.2. 1 PPS pulse, pulse width 20 ± 10 µs, rise time <10 ns, positive polarity, TTL level at 50 Ohm load. Synchronization to external 1 PPS TTL signal with 50 ns accuracy.
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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 instability (Allan variance) not more: |
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1 s |
< 2x10e-13 |
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10 s |
< 2x10e-14 |
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100 s |
< 7x10e-15 |
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3600 s |
< 2x10e-15 |
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1 day |
< 2x10e-15 |
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Phase noise (dB/Hz) (at the 5 MHz output): |
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10 Hz |
-130 |
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100 Hz |
-140 |
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1000 Hz |
-150 |
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Magnetic sensitiveness, (1/Oersted) |
< 1x10e-14 |
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Frequency temperature coefficient, (1/°C) |
< 5x10e-15 |
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Operating temperature range, (°C) |
+5 to +35 |
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Power consumption: 220 V 50 Hz AC (VA) |
150 |
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Dimensions (mm) |
550x990x550 |
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Weight (kg) |
85 |
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Full data monitoring and functions control (local or remote through any network) are performed by personal computer (not included in delivery set).
Application software running under Microsoft Windows is applied. Anticipated life time - 10 years.