The amateur radio club at NASA Johnson Space Center in Houston retransmits audio on 146.640 MHz , and the club at NASA Goddard Space Flight Center in Greenbelt, Md., retransmits audio on frequency 147.450 MHz. The signals can be received for about 25 miles.
Read moreWhat frequency does NASA use to communicate with Mars?
Most often, Mars 2020 uses its ultra-high frequency (UHF) antenna (about 400 megahertz ) to communicate with Earth through NASA’s orbiters around Mars.
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