I'm not sure how reliable but it's an interesting rumor nonetheless ...
Selon une source officious, un navire SIGINT Type 815 aurait capté pour la 1ère fois les signatures de système embarqué de F-35 (A ou B ?).
Translated from French by
According to an unofficial source, a SIGINT Type 815 ship would have picked up for the 1st time the signatures of system F-35 (A or B?).
The ship SIGINT 853 Tianwangxing of Type 815 is new and ready to take to sea.
If I understand it correctly, this is the first 815G (commissioned in 2010) and has just completed a refit.
Launch of 8th electronic reconaissance ship at HDZH on 2/3/2018
View attachment 45236
Credits to @Cirr