New generation of advanced external extra rugged digital high power UHF radio transceivers equipped with Bluetooth, USB, and RS-232/RS-422/RS-485, ready to be used in various kinds of communication job. HPT435BT is a radio transceiver programmable in frequency ranges from 406 to 470 MHz with channel spacing of 25 kHz, 20 kHz 12.5 kHz, 6.25 kHz and capable of transmitting with speed up to 38.4 Kbps. It is compatible with Pacific Crest, Satel, and Trimble protocols and can be used in the existing networks. The output power is programmable from 0.32 Watt to 35 Watts. This transceiver has DBPSK, DQPSK, D8PSK, D16QAM, GMSK, and 4FSK modulations with advanced forward error correction and data scrambling.