A digital television adapter (DTA), commonly known as a converter box or decoder box, is a television tuner that receives a digital television (DTV) transmission, and converts the digital signal into an analog signal that can be received and displayed on an analog television set. Some also have an HDMI output since some TVs with HDMI do not have a digital tuner.
A DTA, commonly known as a converter or decoder box, serves the purpose of decoding a digital television (DTV) signal into an analog format that can be viewed on an analog TV set. Some DTAs also provide an HDMI output to accommodate TVs without a digital tuner.