Spektrum SPMAR10000 - Manual (Page 10)

EN
2. Face the model with the transmitter in your normal flying position and place your
transmitter into range check mode. This causes reduced power output from the
transmitter.
3. You should have total control of the model in range test mode at 30 paces
(90 feet/28 meters).
4. If control issues exist, call the Horizon Product Support office.
Receiver Power System Requirements
Inadequate power systems that do not provide the necessary minimum voltage to the
receiver during flight are the number one cause of in-flight failures. Some of the power
system components that affect the ability to properly deliver adequate power include:
Receiver battery pack (number of cells, capacity, cell type, state of charge) •
The ESC’s capability to deliver current to the receiver in electric aircraft •
The switch harness, battery leads, servo leads, regulators etc. •
The AR10000 has a minimum operational voltage of 3.5 volts; it is highly recommended the
power system be tested per the guidelines below.
Recommended Power System Test Guidelines
If a questionable power system is being used (e.g., small or old battery, ESC that may not
have a BEC that will support high-current draw, etc.), perform the following test with a
voltmeter.
Note: The Hangar 9 Digital Servo & Rx Current Meter (HAN172) or the Spektrum
Flight Log (SPM9540) work well for this test.
Plug the voltmeter into an open channel port in the receiver and with the system on, load the
control surfaces (apply pressure with your hand) while monitoring the voltage at the receiver.
The voltage should remain above 4.8 volts even when all servos are heavily loaded.
CAUTON: Nickel-Metal Hydride batteries when charged with peak detection fast
chargers have tendencies to false peak (not fully charge) repeatedly. These include
all brands of NiMH batteries. If using NiMH packs, be especially cautious when
charging, making absolutely sure that the battery is fully charged. Use a charger that
displays total charge capacity. Note the number of mAh put into a discharged pack
to verify it has been charged to full capacity.
QuickConnect™ With Brownout Detection
(Brownout Detection not available with DSMX)
The AR10000 features QuickConnect with Brownout Detection (Brownout Detection not
available with DSMX). Should a power interruption occur (brownout), the system reconnects
immediately when power is restored and the LEDs on each connected receiver flash
indicating a brownout (power interruption) has occurred (DSM2 only). 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, interrupting control as the servos and
receiver require a minimum of 3.2 volts to operate.
How QuickConnect Works
When the receiver voltage drops below 3.2 volts the system drops out (ceases to operate).
When power is restored, the receiver immediately attempts to reconnect. If the transmitter
was left on, the system reconnects, typically about 4ms. The receivers 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).
CAUTON: If a brownout occurs in-flight it is vital you determine the cause of the
brownout and correct it. QuickConnect and Brownout Detection 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.