The Proximity Communications Equipment (PCE) was unpacked and set up in the Russian Service Module (SM) on 17 October by Expedition 37 Flight Engineer Oleg Kotov. The PCE transponder is linked to an external antenna on the SM and provides direct communication between ATV and the ISS. It’s usually kept stowed as it’s not needed when ATV is attached.
Comm device #PCE for #ATV4 undocking enabling crew to send cmd via ATV control panel is wired in #ISS service module pic.twitter.com/f0OLxRBQ1n
— lionelferra (@lionelferra) October 21, 2013
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