The Jets signed kicker Justin Ayat and tackle Marko Cavka on Tuesday. Ayat, a 2004 graduate of the U. of Hawaii, was successful on 191 of 209 extra-point attempts and converted 59 of 89 field-goal attempts, including a career-long 56-yarder. Cavka, selected by the Jets in the sixth round of the 2004 draft, rejoins New York after spending last year with the Amsterdam Admirals of NFL Europa. He was inactive for all 16 games of the 2004 season, as well as both Jets playoff games.