I'm trying to get a feeling (distance/quality/speed/range/usability) for RFM95 (868Mhz) modules and so I started with an ESP8266 as RFM95 MQTT gateway and a Pro Mini with RFM95 and RFM69_RFM95_ATC_SignalReport.ino Sketch I found in examples with
#define MY_RFM95_ATC_TARGET_RSSI_DBM (-70) // target RSSI -70dBm #define MY_RFM95_MAX_POWER_LEVEL_DBM (10) // max. TX power 10dBm = 10mW
Following values are reported back to my gateway. I'd really appreciate a short explanation, what to "expect" from these values (similar to "values from 0 to 10, 10 best"):
SR_UPLINK_QUALITY SR_TX_POWER_LEVEL SR_TX_POWER_PERCENT SR_TX_RSSI SR_RX_RSSI SR_TX_SNR SR_RX_SNR
Following values for 1m distance between gateway and sender and I have honestly no idea what those values are telling me:
SR_UPLINK_QUALITY 0 SR_TX_POWER_LEVEL 5 SR_TX_POWER_PERCENT 0 SR_TX_RSSI -34 SR_RX_RSSI -27 SR_TX_SNR 9 SR_RX_SNR 9
What is uplink quality telling me and why it's 0, why is TX power percent 0 and power level 5? Looking forward to hear from you.