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RT-500-M

Product catalog summary

Overview: The RT-500-M is a comprehensive direction-finding solution designed for professional search and rescue (SAR) operations at sea. It operates across four frequency bands, covering both civilian and military emergency frequencies, and is capable of receiving and decoding Cospas-Sarsat signals.

Key Features:

Operates on VHF and UHF bands, including emergency frequencies 121.5 MHz and 243 MHz, and Cospas-Sarsat signals at 406 MHz.
High reception sensitivity and bearing accuracy with a Doppler principle method.
Displays bearing information and operating parameters on a clear TFT display.
Automatic monitoring of all emergency frequencies with selective alarm for distress signals.
Robust design suitable for harsh marine environments, with IP 67 protection rating for both antenna and control unit.
Compatible with NMEA, RS-232, and LAN interfaces for integration with other systems.

Technical Specifications:

Bearing accuracy: ±5° with internal resolution of 1°.
Frequency stability: ±2.0 ppm within -30 °C to +80 °C.
Reception bands include VHF air and marine bands, UHF air band, and Cospas-Sarsat.
Response time: Less than 50 ms under optimal conditions.
Operating voltage: 12 V to 30 V DC with a maximum current consumption of 2.5 A.

Mechanical Characteristics:

Display Control Unit (DCU) weight: Approx. 1200 g, operating temperature: -20 °C to +60 °C.
Antenna Unit (AU) weight: Approx. 5200 g, operating temperature: -40 °C to +60 °C.

Applications: Ideal for use in marine SAR operations and stationary landside applications such as vessel traffic services.

Catalog excerpts

Elektronik GmbH lltlzV 4-Band Precision Direction Finder To locate and decode Cospas-Sarsat signals on 406 MHz Ok Mlonitoll On H***i|H ■SMbrJO IN***! •v ocu • 9 ^ ^ ■ The RT-500-M is a complete direction-finding solution for professional SAR applications at sea. This universal multi-band direction finder operates on four frequency bands and automatically monitors not only civilian bands (121.5 MHz, channel 16) but also military emergency frequencies (243 MHz). The RT-500-M can receive Cospas-Sarsat signals (406 MHz), provide the bearing of the source and display the content. The brilliant TFT display conveniently displays bearing information and operating parameters. The control unit and the antenna are designed for use in heavy seas. In addition, the RT-500-M is also ideal for stationary landside applications, e.g., vessel traffic services.

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• Extended range due to high reception sensitivity • High bearing accuracy • 88 marine and coastal radio channels (156.000 to 162.025 MHz) • VHF emergency frequency 121.500 MHz and freely selectable training frequencies (118.000 to 122.975 MHz) • UHF emergency frequency 243.000 MHz and freely selectable training frequencies (240.000 to 245.975 MHz) • Cospas-Sarsat signals and freely selectable training frequencies (400.000 to 409.975 MHz) • Display of the Cospas-Sarsat messages • Clear and brilliant colour TFT display (450 cd/m2) • Conveniently arranged controls with key and menu functions •...

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1 With undisturbed wave field and sufficient field strength. Measured by changing the angle of incidence with the antenna rotating on a revolving table in order to eliminate environmental influences on the results. 2 Very weak signals can increase response time considerably!

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www.rhotheta.com Mechanical characteristics of Display Control Unit (DCU) Operating temperature: Storage temperature: Ingress protection: �� Mechanical characteristics of Antenna Unit (AU) Weight: Operating temperature: Storage temperature: Ingress protection: All product speciﬁcations subject to change without notice. RHOTHETA Elektronik GmbH Dr.-Ingeborg-Haec

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RT-500-M

RT-500-M

Catalog excerpts

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