In Auto mode (the default), the receiver will sense the attached battery voltage, and will set
the alarm voltage accordingly (6V for 2S and 9V for 3S LiPo). This mode is designed only
for use with LiPo batteries. For use with NiCD, NiMh, or other batteries, set the alarm
voltage manually, for example:
9.2v
set LowBattVolts to 5 (9v), and LowBatt100mV to 3 (0.2v)
10.0v
set LowBattVolts to 6 (10v), and LowBatt100mV to 1 (0.0v)
When powering the receiver from LiPo batteries, it is important to note that the discharge
curve is fairly flat, and drops off quickly near the end. Setting a threshold of around 3.0/cell
is relatively safe. It is however highly recommended to perform a ‘dry-run’ after setting the
voltage warning threshold to make sure the low battery warning is set up correctly.
If upon connection of a battery pack the receiver beeps continuously then the low battery
warning is set higher than the voltage from the battery pack, so reset accordingly or
charge the battery pack.
Note that regardless of the low battery alarm settings, a fixed alarm will occur when an
input voltage smaller than 5V or larger than 13V is detected. This safeguards the receiver
from being used with input voltages with which the correct operation cannot be
guaranteed.
Safety Note: Even though this alarm will provide some protection against loss of video
signal during an FPV flight, it is highly recommended to fully charge all battery packs used
before each and every flight.
Rx-change Ticks
When the diversity receiver’s microcontroller switches receivers, it issues an audible ‘tick’.
A useful confidence-building feature when using the receiver, but if you feel the ticking
becomes annoying you have the option of turning it off.
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