Abstract: An antenna mast-top mountable thermo-electrically cooled amplifier enclosure system comprising an enclosure means, a thermo-electric cooler or TEC having a cold side and a hot side mounted on the enclosure so that the hot side faces outwards, an amplifier means mounted directly on the cold side of the TEC, a heat sink means directly mounted on the hot side of the TEC. An internal fan circulates and distributes cold air inside the enclosure and an external fan near the heat sink provides rapid cooling of the heat sink. A band pass filter and a duplexer can also be mounted on the cold side of the TEC. A plurality of connectors are mounted on the enclosure to provide input and output connections as needed. A plurality of mounting flanges are used to secure the enclosure to any mountable surface or device. A temperature sensor mounted on the enclosure detects internal temperature and a temperature sensor mounted on the amplifier detects amplifier temperature.