MOB CENRAP (CENTER RADAR ARTS PRESENTATION) CONFIGN CAUSES DROPPED AND SWAPPED TAGS; DOES NOT ALWAYS TRACK IDENTIFIED ACFT; CAUSES EXTRA INTERFAC COORD TO VERIFY ACFT IN HDOF.

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WHILE WORKING CENRAP PROCS; MANY ACFT DATA TAGS WOULD NOT KEEP UP; OR GO INTO COAST. SOMETIMES COMPLETELY DROP OFF. THIS TYPE OF OCCURRENCE HAS BEEN LOGGED 3 SEPARATE TIMES. ALL CTLRS AT MOBILE ARE WORKING WITH LESS THAN ACCEPTABLE EQUIP. IT WILL BE JUST A MATTER OF TIME WHEN A SEPARATION VIOLATION; OR WORSE WILL HAPPEN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT ZHU PROVIDES CENRAP (CENTER RADAR ARTS PRESENTATION) TO MOB. CTLR STATES THAT ALL ZHU HDOF ACFT DISPLAY NAT (NON-ARTS TRACK); OR CST (COAST); REQUIRING INTERFAC COORD TO VERIFY ACFT POS PRIOR TO ACCEPTING THE HDOF. CTLR STATES THAT ACFT HOLDING WILL HAVE THEIR ARTS TAG EITHER DROP OFF; OR SWAP WITH ANOTHER TRACKED ACFT WHEN THEIR TRACKS MERGE. ALSO; TRACKED ACFT WILL 'LOSE' THEIR ARTS TAGS; REQUIRING THE CTLR TO FREQUENTLY HAVE THE ACFT 'IDENT' TO VERIFY WHICH TAG BELONGS TO WHICH ACFT. ALTHOUGH INTERMITTENTLY DOCUMENTED ON THE SUPVR'S SHIFT LOG; THE RPTR ALLEGES THAT MAINT HAS NOT BEEN ABLE TO RESOLVE THE PROBS. THE CTLR STATES THAT THE INCREASED; REQUIRED SPACING; CONSTANT INTERFAC COORD WITH ZHU; FORCES REDUCED SVC TO THE USER; REFLECTED IN NOT AUTHORIZING PRACTICES APCHS; VFR ADVISORIES; OR ADDITIONAL SVCS TO THE OTHER TOWERED ARPTS WITHIN MOB'S JURISDICTION.