| | | I have used the Radiometrix BIM-433-F transceiver which is sold via the usual elecrtonics catalogues. It's a 433MHz half-duplex transmitter/receiver (34x23x8mm) at 56 UK pounds. We tested it in a stone building and found we could just communicate at (...) (22 years ago, 23-Oct-02, to lugnet.robotics)
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