Working Modes - RadioLink AT9SPro Quick Start Manual

voltage alarm is 8.6V for transmitter; 4.0V for receiver; 11.1V for model battery. When the
voltage is lower than the set alarm value, the transmitter will send out an alarm (See pictures
below), and the low battery alarm can be set according to the actual voltage of the battery to
avoid battery over-discharge.
Setting steps: BASIC menu - PARAMETER - TX-ALARM/RX-ALARM/EXT-ALARM. (Voltage
alarm reference: 2S lithium battery -7.4V; 3S lithium battery -11.1V; 4S lithium battery -14.8V.)
The RSSI alarm is turned off by default. The alarm value can be customized. When the signal
strength is lower than the set alarm value, the transmitter will send out an alarm (See picture
below). Setting steps: BASIC menu - SYSTEM - RSSI ALM.
Radio Low Powe r Receiver Low Power Model Low Powe r RSSI Low Alarm
R9DS Receiver

Working Modes

R9DS, with 2.4G DSSS&FHSS spread spectrum technology, is a 9-channel receiver when
working with PWM signal output (red LED) or a 10-channel receiver when with SBUS&PWM
signal output (purple/blue LED).
1. PWM Signal Mode：Red LED indicates PWM signal output, 9 channels totally.
5