lefeirc RCbro SPARROW 3-OSD, Manual, Page: 4 / 10

RCbro ®
SPARROW
3-
OSD
LefeiRC www.lefeirc.com/
CH1-CH4 PWM receiver,CH1-4: A-E-T-R;AUX3-6
RC
PWM receiver,Flight mode channel
PPM/SBUS/IBUS/CRSF
TX GPS RX
RX GPS TX
S1 AIL
S2 ELE
S3 THR
S4 RUD
S5 AUX1
S6 AUX2
CAM Camera
VTX VTX
B VTX,CAM power supply
T1 MAVLINK/CRSF-telemetry
*It is recommended to remove the propeller during installation and debugging, pay attention to
safety!
➢
How to power the VTX and camera
If the battery voltage is higher than the VTX or camera working voltage, must use an
external BEC power supply.
When the current is too large and the battery power supply capacity is insufficient, if
the image transmission and camera are powered by battery, it may cause the OSD to flicker.
At this time, it is recommended to connect a low ESR large capacitor in parallel with the FC,
such as 470uf/50V, etc.
In some ESCs, the battery voltage and 5V-BEC output voltage fluctuate greatly under
high current conditions, which will cause certain interference to the FC, such as OSD
flickering or even the sensor being affected, resulting in an attitude error. A low ESR large
capacitor is connected in parallel with the output terminal of the ESC (the closer the ESC is,
the better the effect). If space allows, a capacitor can be connected in parallel at the BAT and
ESC terminals of the FC.