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Rubidium Frequency Standard |
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5401 + 5402 |
8040C |
8100 |
8130A |
RubiSource T&M |
5401 + 5402
Rubidium Frequency Standard
Symmetricom's Model 5401 and Model 5402 Disciplined Rubidium Oscillators track a 1 PPS reference input to provide frequency outputs
(1 PPS and 10 MHz) with the stability and accuracy of a primary standard, provided that the reference input is exact. Typically, the 1 PPS input would be obtained from a GPS receiver that outputs a corrected 1 PPS epoch.
The difference between the 1 PPS reference input and the internally generated 1 PPS (derived from the rubidium oscillator) is measured and then used to continuously correct the oscillator frequency.
The correction algorithm compensates for oscillator error. It smoothes jitter from the GPS receiver module due to ephemeris and satellite switching errors. The result is a smoothed, coherent 1 PPS reference and 10 MHz frequency. |
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8040C
Rubidium Frequency Standard
Today's precision test equipment requires a stable reference to make accurate frequency measurements. The Symmetricom 8040C solves this problem by providing a stable and accurate frequency reference with multiple output signal formats in an easy to install 1U rack mountable chassis.
Unlike other units, the 8040C offers configurable RF outputs, GPS disciplining and a RS-232 interface for command and control.
The 8040C is field configurable, allowing the instrument to support changing functionality in evolving systems.
The 8040C is designed around Symmetricom's award winning X72 rubidium oscillator, which is deployed worldwide as the reference oscillator in wireless base stations. |
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8100
Ruggedised Rubidium Oscillator
The Symmetricom 8100 is an enhanced version of our popular commercial LPRO rubidium oscillator. This ruggedised COTS rubidium oscillator is ideal for use in tactical applications where shock, vibration sensitivity, excess relative humidity and other environmental effects are a challenge. Designed for ease of integration into frequency and timing systems, the Symmetricom 8100 offers a low profile and single circuit board construction that uses surface mount technology. The circuit board is conformal-coated for increased moisture resistance, and special precautions are taken for improved shock and vibration tolerance. The height and footprint easily meet the requirements for 1U VME applications. Use of both a filtered D-Connector for I/O signals and an outer mu-metal cover minimises EMI emissions and susceptibility. For ease of integration, the Symmetricom 8100 only needs one input supply voltage and will allow direct plug-in into another circuit board.
Suitable applications include shipboard, airborne, navigation timing, range timing and other tactical applications that need the performance level associated with rubidium technology in a commercial off the shelf (COTS) package. |
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8130A
Militarised Rubidium Oscillator
The Symmetricom 8130A is an enhanced version of our popular M-100 rubidium oscillator. This modern, off-the-shelf militarised rubidium oscillator is ideal for use in tactical applications where shock, vibration, humidity and other environmental factors are a challenge. The circuit boards are conformal-coated for moisture resistance, and special precautions are taken for improved shock and vibration hardening. Use of a filtered power/monitor connector minimises EMI emissions and susceptibility. Designed for ease of integration into frequency and timing systems, the Symmetricom 8130A offers a smaller size MIL atomic frequency reference with a heritage of over 25 years of proven experience in the design, qualification and production of atomic frequency references.
The 8130A provides a stable frequency with good short and long-term stability, and excellent overall performance. The unit includes an RS-232 digital interface for monitoring and frequency adjustments. Suitable applications include ground, shipboard and airborne navigation, timing and other tactical applications that need the performance level associated with rubidium technology in a militarised off the- shelf package. |
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RubiSource T&M
Portable Rubidium Timing Signal Reference
The RubiSource® T&M is a portable timing reference based on Symmetricom's well known rubidium oscillator technology for universal use in test and measurement applications. A variety of coherent standard frequencies are provided:
Sine wave 10 MHz, 5 MHz & 1 MHz
Square wave 10 MHz & 5 Mhz
The RubiSource T&M's 1 PPS output signal provides exact timing information. This output can be synchronised to an external 1 PPS input signal.
The reliable output signals are based on the highly accurate and stable rubidium oscillator inside. The rubidium's fast warm-up eliminates the need for bulky backup batteries.
The RubiSource T&M can be locked to an external primary source such as a GPS receiver or cesium Standard for automatic frequency calibration of the rubidium oscillator and/or enhancing the intrinsic rubidium accuracy to near-cesium quality. | |
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