Whistle for antenna fault

[Scrapper1]

Team A attacks the ball which hits the net very near the table-side antenna and continues to Team B's side of the court. The LJ2 indicates an antenna fault. The R1 has followed the ball and does not see the LJ's signal. I blew the whistle, based on the LJ's signal. (I couldn't tell whether the ball hit the antenna or just the tape.)

As soon as I blew the whistle, I regretted it. I felt like I should have given the R1 the opportunity to find the line judge's signal; but I reacted to the line judge. In the post-match, the R1 was fine with it, but I'm still not sure I did the right thing. Should the R2 kill the play in that situation?