In light of the RF signal issues some people have reported at McCoy field, I had a look at the telemetry logs of my last couple of flights there.
I'm using ELRS at the 100Hz packet rate, using 10mW transmitter power (this is the lowest TX power setting on my internal ELRS module on my TX16S transmitter)
ExpressLRS recommends a minimum signal sensitivity limit of -108dBm for 100Hz.
In my flights there (including flying at the same time as Stephen with his ELRS system) my telemetry reported RSSI level (1RSS, as I have a single antenna ELRS receiver) never got below -85dBm. This is the RSSI level reported by the receiver. I also log TRSS, which is the telemetry RSSI reported by the transmitter, but it's also not anywhere close to the minimum.
The other measured value i looked at was LQI - Link Quality Indicator) which represents the proportion of messages cleanly received. This got down to a minimum of 94% on one flight, but generally was in the 97-100% range. At 100Hz packet rate, a packet or two missing every now and then is not an issue.
Long story short: In my experience, ELRS appears to be unaffected by any interference or link quality issues at McCoy park.
I'm using ELRS at the 100Hz packet rate, using 10mW transmitter power (this is the lowest TX power setting on my internal ELRS module on my TX16S transmitter)
ExpressLRS recommends a minimum signal sensitivity limit of -108dBm for 100Hz.
In my flights there (including flying at the same time as Stephen with his ELRS system) my telemetry reported RSSI level (1RSS, as I have a single antenna ELRS receiver) never got below -85dBm. This is the RSSI level reported by the receiver. I also log TRSS, which is the telemetry RSSI reported by the transmitter, but it's also not anywhere close to the minimum.
The other measured value i looked at was LQI - Link Quality Indicator) which represents the proportion of messages cleanly received. This got down to a minimum of 94% on one flight, but generally was in the 97-100% range. At 100Hz packet rate, a packet or two missing every now and then is not an issue.
Long story short: In my experience, ELRS appears to be unaffected by any interference or link quality issues at McCoy park.