CRP CTLR CONCERNED WITH ARTS IIE TRACKING PROBS.

Narrative

ACFT WAS NOT OBSERVED ON RADAR 13 NW CRP VOR AT 9000 FT. THIS IS ONLY 27.5 MI FROM THE RADAR ANTENNAE. THIS HAS BEEN HAPPENING NOW WITH ALMOST ALL OUR ACFT FOR ABOUT 6-8 MONTHS; EVER SINCE WE HAD OUR 'NEW' ARTS IIE INSTALLED. THIS IS A SAFETY ISSUE WHEN WE AVERAGE 90 PLANES PER HOUR AND CAN'T SEE THEM. SOMETIMES WE CAN'T SEE ACFT THAT ARE AT FLT LEVELS 25-30 MI FROM OUR ARPT AND WE WORK THE AIRSPACE UP TO 10000 FT AND 40-45 MI INCLUSIVE. WE ALSO WORK VALLEY APCH AND HAVE BEEN HAVING THE SAME PROB AND IT HAD THE SAME ARTS SYS INSTALLED AT THE SAME TIME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR ADVISED THE CRP TRACON IS ALSO VALLEY TRACON; CO-LOCATED; WITH DUAL RADAR SITES -- AN ASR 8 AND ASR 9. THE CTLR ALLEGES THAT IFR TRACKED TARGETS CONSISTENTLY FAIL TO TRACK FROM ZHU/CRP BOUNDARY TO APPROX 25 MI N OF CRP. ZHU ADVISED; IN THE RPTR'S SIT; THE SW4 WAS IN TRACKED STATUS; BUT THE ACFT SHOWED 'NAT' STATUS UNTIL APPROX 25 MI N OF THE CRP VORTAC. ALTHOUGH THERE IS A FAC AUTOMATION SPECIALIST; THE RPTR ADVISED THAT HE HAS BEEN UNABLE TO RESOLVE THE PROB. THE CTLR STATES THAT THE TRACKING PROB HAS BEEN SHOWN ON THE FAC DAILY LOG FOR APPROX 4 MONTHS.