Ethos v1.5.7 and X18, X20 series User Manual
VFR is the number of valid frames received in the last block of 100 frames received.
It's per-block rather than a rolling window.
A warning can be set up to warn you when VFR drops below a minimum value,
indicating that the link quality is becoming dangerously low. The default 'Low value
warning' is 50.
Receivers like the TD (2.4 FSK and 900m) and TW (2.4 FSK and 2.4 Lora) receivers
each have two RSSI and two VFR telemetry streams and warnings. Currently
ETHOS logic monitors both VFRs to be below the threshold setting before it plays
the warning message.
RxBatt
Another standard internal sensor is the receiver battery voltage.
ADC2
Some receivers support a second analog voltage input, which is available in
telemetry as sensor ADC2.
2. 'External' sensors
The current FrSky telemetry system makes use of FrSky Smart Port sensors. The X
and S and later series of telemetry enabled receivers have the Smart Port interface.
Multiple Smart Port sensors can be daisy chained together, making the system easy to
implement. Most receivers also have either one or both A1/A2 analog input ports,
which are useful for monitoring battery voltages, etc.
To Next Page
Loading...
Need help?
General