w the SF 12 long payload messages pass!
I tested various SF and BW and coding rates, I decided on the following for the "long-range mode". Typical use will be point-point mode, or gateway to 2 or 3 nodes max, no repeaters. Horizontal polarised yagi antennas.
MY_RFM95_FREQUENCY 433237500ul (its 1MHz away from my co-located standard mode gateway frequency and other local ISM users).
RFM95_MODEM_CONFIGRUATION RFM95_BW62_5CR45SF4096 (Typical time-on-air is around 4000ms.
MY_RFM95_ATC_MODE_DISABLED (to reduce traffic).
How is testing going on this?
I'm interested to know what sort of distance you can cover, I'm planning on some long range sensors to be deployed on my farm. I'm not quite gettting the range I would like.
Here is the radio config in my current setup, but I will definitly look at some of the additional config that you have.
#define MY_RFM95_FREQUENCY (RFM95_868MHZ) #define MY_RFM95_MAX_POWER_LEVEL_DBM (100) #define MY_TRANSPORT_STATE_TIMEOUT_MS (3*1000ul) #define RFM95_RETRY_TIMEOUT_MS (3000ul) #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR48SF4096
As a matter of interest has anyone used repeater nodes with these sort of long range setups. I'm talking about distances over a KM with no clear line of sight. I've managed to get simple comunications working over the required distance using simple transmitter and receiver sketches (provided by heltec, to demonstrate their Lora Node) sending "hello" packets