Your partner could shout as loud as they want but if you could hear every word anyway, the volume doesn't matter, you always heard every word. The closer the volume of the conversation is to the background noise level in the room, the greater the chance is that you'll miss a word due to it getting mixed in with the background noise and lowering your LQI. The RSSI is still the same level, you still hear what you could make out at the same volume, you missed a word so the LQI is lower. Now imagine someone blows an air horn right in the middle of a sentence. That's a 100% LQI- you're receiving 100% of the words. You're going to understand the conversation because you're hearing every word. Your partner speaks loudly enough for you to hear, so the RSSI of their voice is above the sensitivity of your ears. Units are percent, with 100% being every packet is received, and 0% means no packets are being received.Ĭonsider you're having a conversation in a quiet room. LQI - Link Quality Indicator, this value indicates how much of the conversation is being understood and ultimately all that matters.Units are dBm and start from 0 and go down as the volume gets lower (-130dBm hard limit). RSSI must be above the sensitivity level to be understood. RSSI - Received Signal Strength Indicator, this value indicates how loud 🎺 the reception is.There are two main types of signal information available from ExpressLRS: RSSI and LQI This is an explanation of the signal metrics provided by ExpressLRS and how to understand their values. RSSI has become somewhat a generic term for how good a signal is, and every manufacturer can have their own scale, with most agreeing that '100' is the best, less than that is bad, and expect have RXLOSS at ?. Signal Health Signal Health Table of contents.Crystal Oscillator (XO) Frequency Error.Flashing Transmitters Flashing Transmitters.

Rssi signal strength