Air Traffic Control Fully Certified
Other / Unknown
ATC Issue All Types
General None Reported / Taken
ATC Equipment / Nav Facility / Buildings
While working LC2 when PA-28R was on the right downwind to Runway 7R he did not appear on my TDW. He flew about 3 NM before his target appeared near midfield. I notified the Supervisor who had a radar tech come to the Tower to observe what was going on as this has been a recurring problem in our facility for quite some time.[Shortly after] I had the same issue with the same aircraft. The tech requested me to have the aircraft IDENT which I did but nothing appeared on the TDW. I had the aircraft behind PA-28R on the same downwind IDENT and it was observed.
DAB Controller expressed concerns regarding the TDW operational capabilities; noting an example of one target not displaying an IDENT.