◊ Frequency Accuracy : 2E-12
◊ 1PPS Accuracy: 100ns (RMS), 30ns typical
◊ Outputs:2x10MHz,17x 1PPS (1xTTL & 16xRS-422), 2xIRIG B, Have Quick (Opt.)
◊ IRIG B Reader / Generator
◊ Disciplined to GPS or Ext 1PPS or ext IRIG B
◊ Communication: MUX-BUS – MIL-STD-1553 (Opt.) RS-232, RS-422
◊ Operating Temperature: -40°C to +71°C
◊ Holdover (without GPS): 1µs/24 hours, 5E-11/month
◊ 1 hour rechargeable battery back-up
◊ Power remote control
◊ Supply Voltage: 22-32 VDC per MIL-STD-704A
◊ GPS disciplined Rubidium clock
◊ Full MIL-STD qualification for military Airborne Applications

The AR51A-05 offers militarized Rubidium Atomic Clocks, which is synchronized to the Global Positioning System (GPS), thereby providing extremely accurate time & frequency.
The AR51A-05 incorporates numerous features into a single box, including a Rubidium Standard, an internal GPS receiver a Rubidium-GPS DPLL (disciplining) circuit, time codes, multiple outputs. The Rubidium clock is phase locked to the GPS or other external inputs (as a back-up to GPS system). All outputs are derived from the Rubidium clock which maintains time and frequency when GPS or other inputs are interrupted.
The AR51A-05 has been fully qualified for operation in harsh stressed environments on ground mobile, airborne, fighter aircraft, Helicopter and ship borne platforms.

◊ Communication
◊ Telemetry test fields
◊ Field calibration
Any other applications which requires accurate source of frequency & time