(February 2013). Push-to-talk (PTT), also known as Press-to-Transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode. CB radio with push-to-talk microphone switch.
Lamar is a town in Darlington County, South Carolina, United States. The population was 1,015 at the 2000 census. It is part of the Florence Metropolitan Statistical Area. Lamar is located at 34Â°10â²13â³N 80Â°3â²45â³W / 34.17028Â°N 80.0625Â°W / 34.17028; -80.0625 (34.170388, -80.062526).
Berkeley County, South Carolina. Berkeley County is a county in the U.S. state of South Carolina. As of the 2010 census, its population was 177,843. Its county seat is Moncks Corner. After two previous incarnations of Berkeley County, the current county was created in 1882.