(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).
Sponsored Topics. Duncan is a town in Spartanburg County, South Carolina, United States. The population was 3,181 at the 2010 census. Duncan is located at 34Â°56â²6â³N 82Â°8â²5â³W / 34.935Â°N 82.13472Â°W / 34.935; -82.13472 (34.934983, -82.134801). According to the United States Census Bureau, the town has a total area of 3.5 square miles (9.1 kmÂ²), all of it land.