... .5/8W.433Mhz;Wireless rf transmitter 2 ,The range is 2-20KM in the open site. 3. ... bit error rate is 10-2.4. Long transmission distance Within the range of visibility, It can transmit >20km ... the interfaces, allowing the transmission of 255 Bytes long data frames at one time for more flexible programming ... multi-point wireless network for longer distance range to 20KM,Wireless transparent rf transmitter