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update autogain readme

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kx1t 2023-03-24 14:14:21 +01:00
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@ -176,6 +176,8 @@ Please note that in order for the initial period to complete, the container must
When taking measurements, if the percentage of "strong signals" (i.e., ADSB messages with RSSI > 3 dB) is larger than 7%, AutoGain will reduce the receiver's gain by 1 setting. Similarly, if the percentage of strong signals is smaller than 0.5%, AutoGain will increment the receiver's gain by 1 setting. When AutoGain changes the gain value, the `readsb` component of the container will restart. This may show as a disconnect / reconnected in container logs.
We recommend running the initial period during times when there are a lot of planes overhead, so the system will get a good initial view of what signals look like when traffic is at its peak for your location. If you forgot to do this for any reason, feel free to give the AutoGain reset command (see below) during flights busy hour.
Although not recommended, you can change the measurement intervals and low/high cutoffs with these parameters:
| Environment Variable | Purpose | Default |