Range test- bitrate changes

[brolly759]

I am currently testing 7 different types of antennas and I am getting mixed results which is understandable. The wire antenna is my base case and I am trying to see what is the next best thing than a straight 3" antenna. I am currently using the default Node / Gateway examples to do an RSSI test between node and Gateway in NYC under heavy concrete environments.

I have:
disabled ATC
Set to 915Mhz
Increased TransmitPeriod interval
IS_RFM69HW_HCW set to true.

What other changes can I do to increase range while doing a range test?

[brolly759]

Never mind, figured it out, range is better now.

[brolly759]

If I am not using ATC, is the default power at the maximum, ie setpowerlevel(31)?

[Felix]

Never mind, figured it out, range is better now.

Ok so what did you end up doing?
You started the this thread about "bitrate changes", did you change any of that?

If I am not using ATC, is the default power at the maximum, ie setpowerlevel(31)?

Yes, at power up it's at max power. If anything changes that register, it will stay changed until a power cycle is applied or the register is changed again.

[brolly759]

To set to lowest bitrate here is the code I added:

  radio.writeReg(0x03,0x68);
  radio.writeReg(0x04,0x2B);

[Felix]

To set to lowest bitrate here is the code I added:

  radio.writeReg(0x03,0x68);
  radio.writeReg(0x04,0x2B);

Ok and what's that code doing to the bitrate?

[brolly759]

I didn't see this is a while. This sets the datarate to 1200 instead of the default 4.8KBPS

Setting "REG_BITRATEMSB" to "RF_BITRATEMSB_1200"
radio.writeReg(0x03,0x68);

Setting "REG_BITRATELSB" to "RF_BITRATELSB_1200"
radio.writeReg(0x04,0x2B);