UrsaNav - Model UN-152A -Loran-C and eLoran Timing Receiver

The UN-152A meets the stringent European Telecommunications Standards Institute requirements for Primary Reference Clocks, the Stratum–I frequency requirements, and provides traceability of time to within 50 nanoseconds of UTC. Built-in future–proofing ensures capability to track next generation LF signals with advanced waveforms and enhanced data channel capability.

As solutions experts for LF Position, Navigation, Timing, Frequency, and Data technology; UrsaNav has you covered from transmission to reception. Our turnkey solutions include system design, timing and control equipment, advanced data channel techniques, and differential Loran reference equipment.

The UN152A is a standalone enclosed eLoran receiver that contains our UN-151B LF receiver module. This version is capable of receiving Loran-C, eLoran, and Chayka signals, including all existing versions of Loran Data Channels (i.e., 9th pulse, 10th pulse, and Eurofix).

• Small size enclosure
• NMEA messaging
• Complete range of integration capabilities
• Software configurable
• Intuitive user-friendly graphic display software
• Loran-C, eLoran, Chayka
• Flexible SDR architecture

TIMING   

• Timing Specifications: ETSI EN300 462-6-1 / ITU G.811
• Maximum Time Interval Error: < 50ns from UTC; < 25ns for 100s intervals; < 100ns for intervals <1000s
• Hold-over: < 5 μs / 24 hrs
• Timing source: 1 to 3 radio transmitters with automatic handover

POSITIONING   

• Time to First Fix: 30 seconds
• Position Update Rate: 1 Hz
• Accuracy (95%): 10-20m Stand-alone eLoran absolute positioning accuracy in differential eLoran mode
• Stations tracked: All in view

ELORAN ENGINE   

• Sensitivity: 30-120 dB μV/m
• Dynamic Range: 96 dB
• Signal Processing: Band pass/notch filtering, cross-rate cancellation, moving average TOA integration
• Loran Data Channel: Eurofix, 9th / 10th pulse
• Heading: <1 degree with H-field antenna

ACCESSORIES   

• Power cord, User Manual, ELEGANT user interface
• Optional UN-006 E-field antenna
• Optional UN-008 H-field antenna
• Optional Antenna Cable 5, 15, or 30m
• Optional External 5V power supply

PHYSICAL & ELECTRICAL   

• Dimensions: 230 x 100 x 50 mm robust aluminum enclosure
• Weight: .7 kg
• Input Voltage: +5VDC (+/- 5%)
• Power Consumption: 14 W

INTERFACE   

• Serial port (RS-232 level)
• 115200 baud
• NMEA Messaging
• GPIO Port
• 10 MHz frequency output
• 1 PPS eLoran UTC output
• 10 MHz frequency input
• 1PPS input
• Power and 1 PPS LEDs

ENVIRONMENTAL   

• Operating Temperature: -40°C to +65°C
• Storage Temperature: -50°C to +75°C
• Humidity: 95% noncondensing

FEATURES   

• Dual Core ARM/DSP Software Defined Radio
• Firmware upgradable
• On Board FPGA and flash memory
• Meets RTCM SC127 draft MPS spec
• Meets ETSI PRC requirement
• Meets Stratum-I frequency spec
• eLoran UTC recovery
• Full eLoran, Loran-C, Chayka capable
• Differential Loran capable
• Position, Frequency, Time & Data
• GNSS Integration ready
• Stand-alone, ASF and Differential Positioning

ELEGANT™   

• User friendly intuitive GUI for Windows XP/7
• Allows monitoring, archiving and control of UN-151 series
• Time of Arrival trending
• Position Scatter plot
• Loran Data
• Channel display
• Command interface
• Replay of recorded data
• FFT