Final answer:
The statement that improvements in coverage, location accuracy, identification of false alerts, and shortened response times with 406.025 MHz ELTs is true. This frequency is part of a dedicated global distress signal network, which allows for more efficient search and rescue operations.
Step-by-step explanation:
The statement that improvements in coverage, location accuracy, identification of false alerts, and shortened response times are significant with 406.025 MHz Emergency Locator Transmitters (ELTs) is true. ELTs are designed to transmit distress signals in the event of an emergency, and the frequency of 406.025 MHz is dedicated for such purposes. This frequency is monitored worldwide by systems like Cospas-Sarsat which provides satellite-based monitoring. The 406 MHz signal can be encoded with information, such as the identity of the vessel in distress, thus improving the identification of false alerts, a crucial element in search and rescue operations.
ELTs operating at this frequency have been shown to have better signal coverage and location accuracy compared to the older 121.5 MHz ELTs. Also, the presence of geographical information through encoded data in the 406 MHz signal can help reduce the search radius, leading to shortened response times for rescue operations. The advancements in receiver technology and sensitivity, as indicated by the improvements seen in other radio-wave-based technologies such as SETI programs and cellular networks, support the notion of significant enhancements in 406 MHz ELT capabilities.