Miniature Master Oscillator
The FOAMO (Foam-insulated Master Oscillator) is a miniature ultra-stable quartz-controlled master oscillator for space applications. The oscillator provides a mission frequency control of less than ±1pp107, coupled with excellent medium and short-term stability and low phase noise. This oven-controlled quartz crystal oscillator (OCXO) uses a high-overtone SC-cut resonator fabricated from Airbus Defence and Space-grown High Purity Quartz. This material is the purest and most highly qualified quartz in the world and provides the FOAMO resonator with excellent intrinsic radiation tolerance.
|Frequency||10 MHz – or custom, e.g. 5-15 MHz|
|Stability (all causes)||<±1x10-7 (15 years)|
|Allan variance||<2x10-12 (1s – 100s)|
|Warm-up||Less than ±1x10-8 in 10 minutes (-30°C)|
|Output||10 dBm sine|
|Power consumption||2 W (steady state, 25°C)|
|Size||84 x 54 x 42 mm|
|Weight||80-220grams, depending on configuration|
The FOAMO ultra-stable oscillator is designed for use as the master frequency reference in spaceborne applications where high frequency stability is required together with low mass, power and size.