D-STAR   Repeaters
Location Call Port A Port B Port C Port D
N 33° 08' 31"   W 80° 21' 03"
KX4DOR   442.8375+ 145.280-    
MUSC (Ashley Tower)
N 32° 47' 00"   W 79° 57' 07"
W4HRS 1284.2250- 444.1125+ 145.160-  

Links to D-STAR information:

SC D-STAR site                                                                         Alabama D-STAR site                                           D-STAR Information from Wikipedia                        
D-STAR Operating Modes   (many links listed)                   D-STAR System   (an ARRL .pdf file)                         ICOM D-STAR Information

DMR   Repeaters
12.5   KHz   2 TS TMDA
Location Frequency Tone Call
Awendaw          Charleston North Zone   442.4625   +5 MHz None WR4SC
          Wallace             Charleston (Downtown) Zone 443.0375   +5 MHz None WR4SC
  Whitehall           Charleston South Zone   442.3875   +5 MHz None WR4SC
Orangeburg       Orangeburg Zone         440.5875   +5 MHz None WR4SC

Links to Digital Mobile Radio (DMR) information:

Digital Mobile Radio Guide                   DMR Information from Wikipedia                   The DMR Standard                   The DMR-MARC Worldwide Network