Thailand has two "Personal Radio" services, one at VHF 78 MHz and another at VHF 245 MHz. The 78 MHz transceivers must have a Yellow case, while the 245 MHz tr

Thailand has two "Personal Radio" services, one at VHF 78 MHz and another at VHF 245 MHz. The 78 MHz transceivers must have a Yellow case, while the 245 MHz transceivers must have a Red case. These radios are widely used by small businesses (taxis, guards, etc) right across Thailand. Once you start looking, you'll see them everywhere. See https://en.wikipedia.org/wiki/Personal_radio_service#Thailand https://en.wikipedia.org/wiki/Personal_radio_service#Thailan... Thailand also has a very active Amateur Radio Community, with many expats licensed. see https://www.qsl.net/rast/ https://www.qsl.net/rast/ The previous King of Thailand was a Patron of Amateur radio, so access to licensing was taken very seriously by the authorities.