UN-152B
Loran-C and eLoran Timing Receiver
Rack Mount version UN-151B
The UN-152B is a standalone enclosed timing receiver that uses the latest version of UrsaNav’s Mitigator™ series Low Frequency (LF) receivers. The UN-152B provides precise time, frequency, and data channel demodulation from Loran-C or eLoran systems. It features a serial port, a GPIO port and both IPPSand 10MHz inputs and outputs The receiver is capable of processing Chayka and other low or medium frequency sources.
The UN-152B 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. Buiit-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.
Key Features
- 1U 19″ rack mount enclosure
- NMEA messaging
- Complete range of integration capabilities
- Software configurable
- Intuitive user-friendly graphic display software
- Loran-C, eLoran, Chayka
- Flexible SDR architecture
View the full product description
Description
The UN-152B 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).
Download the UN-152B Product Fact Sheet (PDF)
Technical Specifications
| 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
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| 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
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| 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
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| ACCESSORIES |
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| PHYSICAL & ELECTRICAL |
- Dimensions: 1U 19” rackmount x 8” deep
- Weight: 1.5 kg
- Input Voltage: 100-240VAC 50/60Hz
- Power Consumption: 15 W
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| 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
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| ENVIRONMENTAL |
- Operating Temperature: -40°C to +65°C
- Storage Temperature: -50°C to +75°C
- Humidity: 95% noncondensing
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| 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
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| 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
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