MC20 Specifications

SPDIF Sync Input Coaxial BNC, 75Ω (BNC 75Ω)

Clock Output

Rubidium Master Clock: 10MHz 2ea. (75Ω), 2ea. (50Ω), 0.7Vrms (±10%)

Word Clock: CH. A 2ea (75Ω), CH. B 2ea (75Ω)


USB (Reserved for future use)

LED Indicators / Button

LED Indicators: Clock LED, Sync LED, Multiplier LED 10ea (Ch)
Select Button: Clock Select, Multiple Select,
Power Button

Phase Noise(Rubidium)

< -130dBc / Hz (10 Hz)
< -140dBc / Hz (100 Hz)

Freq. Short-term Stability (Rubidium)

<2×10⁻¹¹ (1 s)
<1×10⁻¹¹ (10 s)
<2×10⁻¹² (100 s)

Phase Noise (OCXO)

< -90dB/Hz (1Hz)
< -115dB/Hz (10Hz)
< -127dB/Hz (100Hz)
< -143dB/Hz (1kHz)

Freq. Stability(OCXO)

<5 x 10⁻¹⁰

Size (WxHxD)

430 x 106 x 370 mm (unit only), (127 mm height with foot)
16.9 x 4.2 x 14.6 inch (unit only), (5.0 in height with foot)


20.3kg, 44.7lbs

Input Voltage

110V / 220V

Power Consumption

Standby: 5.7W / Power On: Start Warm-up (160W), State Lock (58W)