Appendix C - Maryland Aviation Administration
SURPIC -Surface Picture. SVCA -Service A. SVCB -Service B. SVCC -Service C.
SVCO -Service O. SVFO -Interphone Service F (A). SVFB -Interphone Service F (
B) ... VOT -VOR Test Facility. VRS -Voice Recording System. VSCS -Voice
Switching and Control System. VTA -Vertex Time of Arrival. VTAC -VOR
collocated with ...