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Today I'm remembering one of the coolest space things ever: Voyager 2's S-band radio receiver has been broken for 44 years, and yet we can still talk to it.

Back in 1978 the primary receiver failed, and the team discovered the backup receiver had a faulty capacitor in the PLL circuit that adjusted for Doppler shift. Since then, Voyager 2's receive bandwidth has been much narrower, and the band-pass window wanders back and forth by a few hundred Hz with temp changes.