Transmitters need only be re-certified if they are to be sold in quantity.
Once-off Broadcast Transmitters need only demonstrate that they meet the relevant standards.
Many of the existing LF and MF BC transmitters were effectively custom built to meet the requirements of their transmit license (for example, the radiation pattern of the antenna were often unique for each station).
Once-off Broadcast Transmitters need only demonstrate that they meet the relevant standards.
Many of the existing LF and MF BC transmitters were effectively custom built to meet the requirements of their transmit license (for example, the radiation pattern of the antenna were often unique for each station).