The FS725 integrates a rubidium oscillator (SRS model PRS10), a low-noise AC power supply, and distribution amplifiers in a compact, half-width 2U chassis. It provides stable and reliable performance with an estimated 20 year aging of less than 5 × 10–9, and a demonstrated rubidium oscillator MTBF of over 200,000 hours.
The FS725 is an ideal instrument for calibration and R&D laboratories, or any application requiring a precision frequency standard.
| Key Features |
| 10 MHz and 5 MHz outputs |
| 1 pps input and output for GPS synchronization |
| 20 year aging less than 0.005 ppm |
| Ultra-low phase noise (<−130 dBc/Hz at 10Hz) |
| Built-in distribution amplifiers (up to 22 outputs) |
| RS-232 computer interface |
| Two status alarm relays |
| Specifications |
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FS725
Benchtop rubidium frequency standard
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| Model Overview |
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| Model | Description |
| FS725 | Benchtop Rb frequency standard |
| Options |
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| Option 01 | Distribution amplifier (6 outputs) |
| Option 02 | Distribution amplifier (12 outputs) |
| Option 03 | Distribution amplifier (18 outputs) |
| Accessories |
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| O725RMD | Double rack mount kit |
| O725RMS | Single rack mount kit |