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Low Battery Volts
Low Battery 100mV
These two options can be combined to set the threshold at which the low-voltage alarm sounds.
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 batteris, 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.
Optimal Antenna Connection
The Uno5800 was designed to be connected directly to the antenna's RF connector with as short a cable
as possible, or ideally no cable at all.
Months of testing has shown that with this configuration, the best reception will be obtained.
www.immersionrc.com
info@immersionrc.com
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