need to fall down this rabbit hole immediately.
PLEASE listen to these fucking sounds (credit)
for anyone interested happysat’s current website is here and has a lot about this topic, including recordings (also heres an archived version of the site where you can listen to the audio without downloading it in case anyone does not want to do that). this other site also talks quite a bit about this specific satellite (transit 5B-5) but note that it is in german
ive seen some people in the tags wonder if its possible to pick this up on an am/fm radio or on a radio capable of receiving shortwave, and the short answer is no it is not possible unfortunately, they arent built to pick up frequencies in the ranges that are discussed. even with the right kind of radio you would need a pretty good antenna and to know when exactly the satellite was passing overhead to pick it up anyway, its not simply a matter of turning to the right frequency
and just for fun heres an art project based on this subject that i found. its all in french so no clue what it says yet but its fun to click around