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European versions: TX3A-869-64/RX3A-869-xx The TX3A & RX3A are miniature UHF radio transmitter & receiver modules designed for PCB mounting. They facilitate the simple implementation of data links at speeds up to 64kbps and distances up to 75m in-building or 300m over open ground.
USA versions: TX3A-914-64/RX3A-914-xx
Data speed options (-xx) : -10 (10kbps), -64 (64kbps)