There are several local amateur radio repeaters in the southern Maryland area. Wikipedia defines amateur radio repeaters as; “an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation.” (Wiki) Local repeaters will allow you to use your handheld transceiver to contact others at distances that the handheld is not capable of reaching on it’s own. You can also use your mobile station or your base station to reach the local amateur radio repeaters, some of which are linked together to offer even greater reach for amateur radio communication.
Saint Mary’s county area repeaters:
146.640 MHz Negative Offset PL 146.2 (Located in Lexington Park, MD)
145.350 MHz Negative Offset PL 156.7 (Located in Prince Frederick, MD. Wide area coverage)
147.420 MHz SIMPLEX Echolink. PL 156.7 (Located in Leonardtown)
146.600 MHz SIMPLEX D-Star Hotspot. (Located in Lexington Park)
147.195 MHz Positive Offset D-Star (Located in Hollywood, behind the VFD.)
443.050 MHz Positive Offset (Located in Lexington Park)
If you are planning to travel you can find the amateur radio repeaters of your destination area by visiting the Repeater Book website ahead of time.