Range Testing
Before each flying session and especially with a new model, it is important to perform a range check.
All Spektrum aircraft transmitters incorporate a range testing system which, when activated, reduces
the output power, allowing a range check.
Pull and hold the Trainer Switch
30 paces (90 feet/28 meters)
1. With the model restrained on the ground, stand 30 paces (approx. 90 feet/28 meters) away from the
model.
2. Face the model with the transmitter in your normal flying position and place your transmitter into
range check mode.
3. You should have total control of the model with the button depressed at 30 paces (90 feet/28 meters).
4. If control issues exist, call the appropriate product support department.
Receiver Power System Requirements
Inadequate power systems that are unable to provide the necessary minimum voltage to the receiver
during flight have become 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 AR6210 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.), it is recommended that a voltmeter be used to perform the
following tests.
Note:
The Hangar 9 Digital Servo & Rx Current Meter (HAN172) or the Spektrum Flight Log
(SPM9540) is the perfect tool to perform the test below.
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.
Caution:
The latest generations of Nickel-Metal Hydride batteries incorporate a new chemistry
mandated to be more environmentally friendly. These 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. It is recommended to use a charger that can display 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)
Your AR6210 features QuickConnect with Brownout Detection.
(Brownout Detection not available with DSMX)
• Should an interruption of power occur (brownout), the system will reconnect immediately when
power is restored (QuickConnect).
• The LED on the receiver will flash slowly indicating a power interruption (brownout) 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 3.5 volts thus interrupting control
as the servos and receiver require a minimum of 3.5 volts to operate.
EN
