◊ GPS disciplined Rubidium clock
◊ Outputs: 10MHz, 1PPS (TTL & RS-422), TOD (Have Quick), 2PPS (opt.)
◊ Input: GPS antenna, 1PPS, TOD (Have Quick)
◊ Frequency Accuracy : 2E-12
◊ 1PPS Accuracy: Typ. 20ns (RMS)
◊ NTP Server. Time Accuracy <300μs (opt)
◊ Holdover (no GPS): Typ. 1µs/24 hours, 5E-11/month
◊ Operating Temperature: -25°C to +65°C (71°C Emergency). -40°C (opt.)
◊ Control and monitoring : RS-232 (input & output), RS-422 (output), MIL-STD-1553 (opt.)
◊ Ephemeris, Almanac & Ionosphere Data
◊ Supply Voltage: 22-32 VDC per MIL-STD-704D
◊ External battery input for power back-up
◊ P(Y) code GPS (SAASM) receiver (Option)
◊ Full MIL-STD qualification for military Airborne Applications
◊ Graphic User Interface (GUI) Software for PC

AccuBeat has developed several versions of the AR51A07 for different applications. Please contact us for further information or for a fully customized solution to meet your specific needs.

The AR51A-07 unit is an industrial low profile GPS-Disciplined Rubidium Clock which offers an excellent stability and accuracy. The unit includes a Rubidium-Atomic-Standard which is phase-locked to the GPS or other external inputs. All outputs are derived from the Rubidium-Atomic-Standard and maintain highly accurate time and frequency even when GPS reception is interrupted. When disciplined to GPS the unit provides time accuracy of < 20ns RMS and frequency accuracy better than 2E-12.

The AR51A-07 includes Have Quick (ICD-GPS-060) input and output which is essential for secure radio communication applications. The unit can be remote controlled via MIL-STD-1553RT channel which is required in airborne applications.

The unit includes internal GPS receiver (C/A code) and have option to install P(Y) code SAASM GPS receiver (For more information contact factory).

The AR51A-07 is designed for demanding platforms such as airborne, helicopters, UAV’s, shipboard and ground mobile.

◊ Communication
◊ Telemetry test fields
◊ Field calibration