RT-202

RT-202

RT-202

Product catalog summary
Overview: The RT-202 CrewFinder is a compact and robust device designed for efficient recovery during man overboard incidents, even in adverse conditions such as heavy seas and poor visibility. It monitors the international distress frequency of 121.5 MHz and provides directional guidance to the crew via an LED display.
Key Features:
  • Automatic operation with high receiver sensitivity for detecting weak signals.
  • Displays bearing information on a circular LED direction indicator.
  • Selective squelch function to prevent false alarms.
  • Compact design suitable for small vessels and lifeboats.
  • Waterproof components with IP 67 rating.
  • Easy installation without the need for RF cables.
Specifications:
  • Electrical: Doppler principle for bearing, accuracy of ±5°, sensitivity < 2 µV/m, operating voltage 12-28 V DC, power consumption max 350 mA.
  • Mechanical: Operating temperature -20°C to +60°C, weight of display control unit approx. 600 g, antenna unit approx. 1400 g, ingress protection IP 67.
  • Interfaces: Serial RS-232, audio out for external loudspeaker, alarm out with open collector output.
Applications: Primarily used for search and rescue (SAR) and man overboard scenarios. Crew members are equipped with personal locator beacons that activate upon immersion in water, transmitting a signal to guide the vessel to the person in distress.
Contact Information: RHOTHETA Elektronik GmbH, Murnau, Germany. Tel: +49 8841 4879 - 0, Email: [email protected], Website: www.rhotheta.com
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Catalog excerpts

RT-202-1

2-Channel Precision Direction Finder The RT-202 CrewFinder features compact, robust design and permits fast, efficient recovery in the event of a man overboard incident despite heavy seas and poor visibility. The RT-202 monitors the 121.5 MHz international distress frequency and alarms the crew if an emergency signal is received. The bearing of the source is shown on the LED screen to lead the crew directly to the person in distress. The “selective squelch” function prevents false alarms caused by interference or other radio signals. The RT-202’s compact antenna also makes it ideal for installation on smaller vessels and lifeboats as well as for landside applicat

 Open the catalog to page 1
RT-202-2

SAR (Search and Rescue) and “Man overboard” applications A “man overboard” emergency is always terrifying – for the person in distress as well as for crew members. Under poor conditions, it can be almost impossible to find someone in the water and whether or not the individual is found is a matter of luck. To make matters worse, search and rescue services are usually not available due to the lack of a seamless infrastructure or SAR personnel cannot reach the person in the water before it is too late. The RT-202 makes it possible to reach and rescue overboard crew members quickly and easily despite...

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RT-202-3

Electrical data Method of bearing: Doppler principle (3 kHz frequency of rotation) Internal resolution: Reception frequencies: 121.500 MHz + 121.650 MHz (customer-specific frequencies available on request) Bearable modulation: A3E, F3E, A3X (distress modulation), bearing largely independent of modulation Polarization error: < 5° at 60° field vector rotation Garbling cone: < 50 ms (with sufficient reception field strength) Operating voltage: Power consumption: Max. 350 mA (without external speaker) With built-in miniature speaker, modulation: A3E 1200 baud, parity = odd, 7 data bits, 1 stop bit For...

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RT-202-4

www.rhotheta.com Features • Completely automatic operation • Very high receiver sensitivity to permit detection of very weak or remote signals • Bearing information displayed on a circular LED direction indicator • Selective alarm function to prevent false alarms • Signal strength indicator • Compact and robust construction ensures exceptional reliability • All DF components are waterproof (IP 67) • Easy to install: no RF cables required • Interface for remote operation and data transfer to a PC Aluminum housing with panel mounting brackets ��� Screw flange (standard) All product specifications...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.