Transponder Technology
Kartavya Desk Staff
Source: PIB
Context: The Department of Fisheries with the help of the Vessel Communication and Support System under the Pradhan Mantri Matsya Sampada Yojana has been able to enhance the safety and security of fishermen at sea.
• This initiative, utilizing indigenous transponder technology developed by ISRO and implemented by New Space India Ltd (NSIL)
About Vessel Communication and Support System:
• Launch Date and Cost: Introduced on August 30, 2024, with a project outlay of ₹364 crore.
• Objective: Provides real-time two-way communication for fishermen beyond mobile range, enhancing safety and allowing for timely advisories during emergencies.
• Technology: Uses transponders developed by ISRO, enabling precise vessel tracking, speed monitoring, and emergency communication, especially crucial in adverse weather.
• Application: The Nabhmitra Application aids in vessel tracking and provides real-time updates on sea conditions, weather alerts, and cyclone data, contributing to safe navigation.
• Multilingual Support: Broadcasts in local languages ensure accessibility for non-English-speaking fishermen, enhancing response time and safety.
About Transponders:
• Definition: A transponder is a wireless device that receives incoming signals, amplifies them, and transmits a modified signal back.
• Primary Functions:
• Acts as both a transmitter and receiver (transmitter + responder). Shifts input signal frequency and boosts it. Transponders are categorized into active (used in aircraft, RFID) and passive (used in devices like credit cards).
• Acts as both a transmitter and receiver (transmitter + responder).
• Shifts input signal frequency and boosts it.
• Transponders are categorized into active (used in aircraft, RFID) and passive (used in devices like credit cards).
• Types:
• Bent Pipe Transponder: Converts signal to radio frequency, boosts it, and transmits it back; often used in satellites as a repeater. Regenerative Transponder: Processes the signal by demodulating and remodulating it for better accuracy; suitable for digital signals.
• Bent Pipe Transponder: Converts signal to radio frequency, boosts it, and transmits it back; often used in satellites as a repeater.
• Regenerative Transponder: Processes the signal by demodulating and remodulating it for better accuracy; suitable for digital signals.
• Comparison:
• Transponder vs. Transceiver: A transceiver can both send and receive signals without preprogrammed responses, while a transponder is programmed to respond automatically. Transponder vs. Transducer: A transducer converts energy types, while a transponder handles signal transmission and response.
• Transponder vs. Transceiver: A transceiver can both send and receive signals without preprogrammed responses, while a transponder is programmed to respond automatically.
• Transponder vs. Transducer: A transducer converts energy types, while a transponder handles signal transmission and response.
Insta Links:
• Space-technology
• Pradhan-Mantri-Matsya Sampada-Yojana