(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).
Spartanburg, South Carolina. Spartanburg is the largest city in and the county seat of Spartanburg County, South Carolina, United States, and the 12th-largest city by population in the state. The city of Spartanburg has a municipal population of 37,013, and Spartanburg County has an urban population of 180,786 as of the 2010 census. The Spartanburg Metropolitan Statistical Area, including Spartanburg and Union counties, had a population of 317,057 as of the 2010-2014 American Community Survey 5-Year Estimates. Spartanburg is the second-largest city in the greater GreenvilleâSpartanburgâAnderson Combined Statistical Area, which has a population of 1,385,045 as of 2014.