Voyager spacecraft telecom functional block diagram

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1. AkaSci 🛰️ (akasci@fosstodon.org)'s status on Friday, 04-Aug-2023 19:18:30 UTC AkaSci 🛰️

   in reply to

   To make matters worse, 1 of 2 receivers on Voyager 2 is healthy, but a fault prevents it from accurately tracking the receive signal. Signal frequency varies due to the rotation of the earth (doppler) and receiver temperature. V1 can track signals that are off by +-100 KHz, but V2 can only handle +-100 Hz. For V2, tx from earth is pre-compensated in freq, taking earth rotation and V2 temp. into account.

   W/o temp. info, they might be trying multiple values.

   https://descanso.jpl.nasa.gov/DPSummary/Descanso4--Voyager_new.pdf
   #Voyager
   3/n