Spektrum SPMAR9110 User Manual

Page 20

transmitter and receivers are all working correctly. The frame losses that

led to the hold are not added to the total frame losses.
Note: A servo extension can be used to allow the Flight Log to more

conveniently be plugged in without having to remove the aircraft’s hatch or

canopy. On some models, the Flight Log can be plugged in, attached and

left on the model using double-sided tape. This is common with helicopters,

mounting the Flight Log conveniently to the side frame.

QuickConnect

™

with Brownout Detection

(Brownout Detection not available with DSMX)

The remote receivers now included with the AR9110 feature QuickConnect

with Brownout Detection (Brownout Detection not available with DSMX). Should

a power interruption occur (brownout), the system will reconnect immediately

when power is restored and the LEDs on each connected receiver will flash

indicating a brownout (power interruption) has occurred. Brownouts can be

caused by an inadequate power supply (weak battery or regulator), a loose

connector, a bad switch, an inadequate BEC when using an electronic speed

controller, etc. Brownouts occur when the receiver voltage drops below 3.2

volts thus interrupting control as the servos and receiver require a minimum

of 3.2 volts to operate.
How Brownout Detection Works
When the receiver voltage drops below 3.2 volts the system drops out (ceases

to operate). When power is restored, the receivers will immediately attempt

to reconnect transmitter was left on, the system reconnects, typically about

4ms. The receivers will then blink indicating a brownout has occurred (DSM2

only). If at any time the receiver is turned off then back on and the transmitter

is not turned off, the receivers will blink as a power interruption was induced

by turning off the power to the receiver (DSM2 only). In fact this simple test

(turning the receiver off then on) will allow you to determine if your system’s

brownout detection is functioning.
Note: If a brownout occurs in-flight it is vital that the cause of the brownout

be determined and corrected. QuickConnect is designed to allow you to

safely fly through most short duration power interruptions. However, the

root cause of these interruptions must be corrected before the next flight

to prevent catastrophic safety issues.