What are RSSI, RemRSSI, Noise and RemNoise?

ArduRover Rover 4.5
1

I am now testing a rover with RFD 868ux-EU Modem.
I have the ground station antenna on a 20’ high aluminium pole fairly close to a large building and both full size antennas (supplied with the bundle) on the rover. One is vertical and one is horizontal.
I was loosing connection after about 200 metres even though the rover was still within line of sight.
I had a look at the log and plotted the RSSI, RemRSSI, Noise and RemNoise. See below.

Screenshot 2025-01-07 113236
Screenshot 2025-01-07 1132361169×1027 28 KB

Can anyone explain what the noise and remnoise is and what could possibly be causing this.
I have no idea what would be a normal acceptable value for either.
I have read that this noise can affect the range.

Although it is fairly constant the RSSI and RemRSSI is clearly decreasing as distance travelled is increasing.

2

Fossil, did you make any headway? RSSI is the Radio Signal Strength Indicator, while RemRSSI is the same for the Remote. Here’s. Some details about it for MP: Received Signal Strength Indication (RSSI) — Copter documentation
Good luck.

3

Thanks @Metalworker.
I did find that information after further searches.
I still have a terrible amount of noise but am getting as far as I need to at the moment.
I ended up moving my ground station antennas away from the building.
I am still experimenting but will update once I have seen an improvement.