The digital control portion of a low-cost 406-MHz COSPAS/SARSAT emergency beacon has been designed and breadboarded at the NASA Lewis Research Center. This report discusses the requirements and design tradeoffs of the digital controller and describes the hardware and software design, which is available only to United States citizens and companies
Software Defined Radio (SDR) technology has been proven in the commercial sector since the early 199...
A number of remote sensing or surveillance tasks (e.g., fire fighting, crop monitoring) in the civil...
A Software Defined Radio (SDR) concept uses a minimum amount of analog/radio frequency components to...
The SARSAT rescue system is described and alternative systems discussed, with SARSAT functioning as ...
The launch of NOAA E, an advanced TIROS N (ATN) environmental monitoring satellite, carrying special...
Emergency Locator Transmitters (ELTs) are credited with saving hundreds of lives every year in the U...
Low Earth Orbit (LEO) satellites have a limited direct contact time with the stations of their groun...
Aircraft Emergency Locator Transmitters (ELTs) are vital in helping search and rescue (SAR) teams in...
Satellite technology has been an integral part of maritime search and rescue since the Cospas-Sarsat...
Low cost high performance (5 Watts output) 406 MHz beacons are urgently needed to realize the maximu...
Low Earth Orbit (LEO) satellites have a limited direct contact time with the stations of their groun...
A beacon system includes emitter devices, driver circuitry configured for controlling the emitter de...
Monolithic GaAs UHF components for use in SARSAT Emergency Distress beacons are under development by...
The background behind the congressional legislation that led to the requirement for the Emergency Lo...
Two types of search and rescue systems not involving satellites are studied; one using a network rad...
Software Defined Radio (SDR) technology has been proven in the commercial sector since the early 199...
A number of remote sensing or surveillance tasks (e.g., fire fighting, crop monitoring) in the civil...
A Software Defined Radio (SDR) concept uses a minimum amount of analog/radio frequency components to...
The SARSAT rescue system is described and alternative systems discussed, with SARSAT functioning as ...
The launch of NOAA E, an advanced TIROS N (ATN) environmental monitoring satellite, carrying special...
Emergency Locator Transmitters (ELTs) are credited with saving hundreds of lives every year in the U...
Low Earth Orbit (LEO) satellites have a limited direct contact time with the stations of their groun...
Aircraft Emergency Locator Transmitters (ELTs) are vital in helping search and rescue (SAR) teams in...
Satellite technology has been an integral part of maritime search and rescue since the Cospas-Sarsat...
Low cost high performance (5 Watts output) 406 MHz beacons are urgently needed to realize the maximu...
Low Earth Orbit (LEO) satellites have a limited direct contact time with the stations of their groun...
A beacon system includes emitter devices, driver circuitry configured for controlling the emitter de...
Monolithic GaAs UHF components for use in SARSAT Emergency Distress beacons are under development by...
The background behind the congressional legislation that led to the requirement for the Emergency Lo...
Two types of search and rescue systems not involving satellites are studied; one using a network rad...
Software Defined Radio (SDR) technology has been proven in the commercial sector since the early 199...
A number of remote sensing or surveillance tasks (e.g., fire fighting, crop monitoring) in the civil...
A Software Defined Radio (SDR) concept uses a minimum amount of analog/radio frequency components to...