TPA CTLR DESCRIBED INCIDENT WHEN VECTORING ACFT FOR APCH TO SRQ THAT FLEW NEAR AN ANTENNA.

Narrative

I HAD JUST GOT TO WORK AND WAS RELIEVING THE CTLR ON THE 'B' WHO HAD ALL OF THE AIRSPACE FOR THE FACILITY. HE WAS ALSO IN THE PROCESS OF DE-COMBINING A PART OF THE AIRSPACE. HE ENSURED I HAD ALL THE STATUS; RWYS AND WX AS REQUIRED. HE THEN WENT THROUGH THE TFC AND IF I REMEMBER RIGHT HE WAS WORKING 3-4 ACFT. ONE ACFT; A WW24 (MAKING PRACTICE APCHS) HE SAID HAD PRACTICED A MISSED APCH AT SRQ; HELD AT MURDO PER MISSED APCH AND WAS NOW ON A VECTOR (360 DEGS) FOR THE VOR APCH TO RWY 22 AT SRQ. BECAUSE OF HIS SCOPE SETTINGS I COULD BARELY MAKE OUT HIS MAP AND DID NOT PAY ATTN AT WHAT ALT HE WAS AT (NO ACFT AROUND HIM). AFTER I ACCEPTED THE POS; I SAT DOWN AND IMMEDIATELY NOTICED HE WAS AT 2000 FT IN THE VICINITY AND NW OF AN ANTENNA THAT WAS 1749 FT (MVA IS 2700 FT). I TURNED THE ACFT TO 340 DEGS WHICH WOULD PUT THE ANTENNA BEHIND HIM. ABOUT 30 SECONDS LATER; A LOW ALT ALERT WENT OFF ON WW24 AND THE RELIEVED CTLR STARTED QUESTIONING THE HT OF THE ANTENNA AND THE MISSED APCH SEPARATION FROM THE ANTENNA. I JUST CONTINUED TO WORK AND EVENTUALLY CLRED THE ACFT FOR THE VOR APCH. I CANNOT SAY IF THE ACFT REMAINED AT LEAST 3 MI FROM THE ANTENNA; WHEN I TURNED THE ACFT TO 340 DEGS IT WAS PAST THE ANTENNA TO THE NW AND IT LOOKED LIKE 3 MI. I THOUGHT IT STRANGE THE LOW ALT ALERT WENT OFF AFTER THE FACT WHEN IT LOOKED LIKE THE ACFT WAS ESTABLISHED ON THE 340 DEG HDG AND MOVING AWAY FROM THE ANTENNA. RELIEVED CTLR MADE NO COMMENT IF SEPARATION WAS ENSURED; JUST QUESTIONED THE HT OF THE ANTENNA AND THE MISSED APCH INSTRUCTIONS AND HOLDING AT MURDO.