Hi,
I need to use the moteinos (868 or 915 MHz) in a long range configuration (longest link with about 1km, near line-of-site, in a rural area). I saw many posts with recommended settings, namely these from hdphilip (
https://lowpowerlab.com/forum/rf-range-antennas-rfm69-library/rfm69hw-range-test!/15/):
radio.writeReg(0x03,0x68); //RegBitrateMsb 1200 bitrate
radio.writeReg(0x04,0x2b); //RegBitrateMsb
radio.writeReg(0x05,0x00); //RegFdevMsb 2000
radio.writeReg(0x06,0x21); //RegFdevLsb
radio.writeReg(0x19,0x56); //RegRxBw
radio.writeReg(0x18,0x88); //RegLna register
and these from Steinarrr (
https://lowpowerlab.com/forum/moteino/multistorey-indoor-range-performance-1-75km-range-(solution)/msg3189/#msg3189):
radio.writeReg(0x03,0x68); //RegBitrateMsb 1200 bitrate
radio.writeReg(0x04,0x2B); //RegBitrateLsb 1200 bitrate
radio.writeReg(0x05,0x00); //RegFdevMsb 2000
radio.writeReg(0x06,0x52); //RegFdevLsb 2000
radio.writeReg(0x19,0x40|0x10|0x05); //RegRxBw DccFreq:010, RxBw_Mant:24, RxBw_Exp:5
radio.writeReg(0x18,0x00|0x00|0x01); //RegLna LnaZin:50ohm, LowPower:Off, CurrentGain:MAX
I've tried with the first values from hdphilip, but had stability problems, it worked in my house but when intalling the gateway at the final destination, even with the sensors around it (less than 1 meter), most of the messages failed.
Any recommended values for 868 or 915 Moteinos? Temperature compensation is necessary for these parameters?
Thanks!
Fernando