TBS Tracer Manual
CLI commands
set osd_link_quality_alarm = 50
Signal strength in INav
In INAV it’s almost the same as with the old BetaFlight methode, except that you don’t need to assign LQ to
a channel in the channel map menu.
INav reads the LQ from the CRSf stream and outputs it automatically on Channel 17 (from INav).
Link States
LQ - Link quality
The number of packages that arrive correctly. If the number starts to drop, more packages are lost. On the
TBS Tracer, it scales from 0 to 100% linearly.
RSSI - Relative signal strength indicator
A very technical indicator meant for professionals. It signals how “loud” the frequency is (this may also
include noise!)
The RSSI is logarithmic which results in a massive drop at the beginning and slows down the lower it gets.
Rule of thumb: doubling the range will result in a drop of -6dBm. An example:
● RSSI at 1m = -10dBm
● RSSI at 2m = -16dBm
● Rssi at 4m = -22dBm
The Tracer can go down to the noise floor before the link breaks up. The elevation above the noise floor is
indicated by SNR (see below).
If you use RSSI as sensor by the channel/ output map menu or as OpenTx telemetry sensor, it will be
shown like this:
● -0.1dBm = 100%
● -130dBm = 0%
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