Not sure. But I'm communicating at 9600. This specific module is light=20 on info, but other almost-identical modules show that the baud rate in=20 the air is 15,000bps, and I can get that down to 5,000 bps if I go down=20 to 2400 serial-comms rate. Which is fine for the data I'm sending. =20 Receiving sensitivity will change from -112 dbm to -117 dbm. I must try=20 that. Cheers, -Neil. On 8/4/2016 1:42 AM, Brent Brown wrote: > Without changing any hardware: Reducing data rate can increase distance. = Don't > know if modules are doing encoding for you... if not then may need to add= a > preamble so receiver can tune-in/stabilise before data starts coming, may= need to > "whiten" the data if longish stretches of all 0 or all 1 bits are common = in the data > (how you do that can range from complicated and comprehensive to simple b= ut > limited). > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .