Rhotheta Elektronik GmbH has 20 years of experience in the design, development and production of high-quality direction finders for ATC,VTS and SAR applications. In the area of SAR technology, Rhotheta specializes in equipment for professional SAR organizations active at sea and land.
RT-300
The RT-300 is an all-purpose dual-band direction finder that receives not only emergency signals on the 121.5MHz frequency but also voice communication on the marine band. Developed for mobile operation at sea or on land as well as for mobile landside operation, the RT-300 is an SAR and communication direction finder as well as a navigation aid all in one.
- Completely automatic operation
- Very high receiver sensitivity to permit detection of very weak or remote signals
- Availability of all 88 channels (156.000 to 162.025 MHz) of the marine band
- Availability of the 121.500 MHz emergency frequency as well as 200 channels for training purposes in the air band
- Automatic monitoring of the emergency frequency while using the marine band
- Selection of duplex channels (coast and ship Channels) possible
RT-500
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).
- 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 color TFT display (450 cd/m2)
RT-600
The RT-600/SAR-DF 517 is an advanced wideband radio direction finder system for airborne applications, capable of capturing and indicating directions to any source of an emergency signal on VHF, UHF, all 19 406 MHz COSPAS-SARSAT frequencies and all 88 maritime channels.
- Modern and advanced wide banded direction finding system for airborne applications
- NVIS Green B compatible Display Control Unit for NVG cockpit available
- COSPAS-SARSAT freq.: Channels A to S (406.022 to 406.076MHz )
- Bearable modulation: A3E, F3E, A3X (ELT modulation), F1D, G2D, COSPAS SARSAT
- Bearing largely independent of modulation
- Polarization: Vertical
- Polarization error: ≤5° at 60° field vector rotation
- Garbling cone: Approx. 30° to the vertical
- Response time2: ≤50 ms (with sufficient reception field strength)