Rakon Releases Hi-Rel Space Master Reference Oscillator Equipment With 100ppb Stability Over 20 Years
The Hi-Rel Space MRO (Master Reference Oscillator) equipment is specially designed for GEO telecommunication satellites where precision, frequency stability and ultra-low phase noise are crucial. It achieves a long-term frequency stability down to ±100 ppb over the 20 years of lifetime. Output frequencies are available from 5 to 200 MHz and the MRO can easily be connected to a Master Local Oscillator to create a Frequency Generation Unit. The output level can be adjusted per port.
The equipment is based on 3:1 redundancy architecture, single point failure free and offers 99.99% reliability.
The current baseline includes an integrated DC/DC converter which allows the clock to be powered directly from the primary satellite bus, an ON & OFF TM/TC and one block of 8 outputs @ 10 or 100 MHz. Custom solutions are available on request, including synchronisation to a 1PPS signal, different stability class oscillators, digital electronic frequency control, or additional outputs.
Key features:
- Output frequency: 5 to 200 MHz
- Power bus: 28 to 110 V
- Typical phase noise @100 MHz:
- 105 dBc/Hz (@10 Hz)
- 125 dBc/Hz (@100 Hz)
- 145 dBc/Hz (@1 kHz)
- 155 dBc/Hz (@10 kHz)
- Overall frequency stability: ±100 ppb for 20 years
- 3:1 redundancy
- Reliability: 99.99%
Baseline:
- Output 8 to 48 outputs
- Primary power bus: 100 V
- On & Off & health TM/TC
- Output power: -7 to 5 dBm
- Isolation between 2 outputs > 50 dB
Options:
- Internal reference oscillator according to stability requirements
- Digital electronic frequency control via CAN bus
Source: Rakon