Spektrum SPM18000 DX18QQ User Manual download pdf (Page 57)

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Installing the Batteries

Using the given guidelines, select the battery system that best ﬁ ts your application

and install the battery(s)/regulator(s) in your aircraft. Connect the battery to the

receiver. Spektrum batteries are pre-wired with an EC3 connector and plug

directly in. If using another brand of battery, it will be necessary to solder EC3

connectors (two are included with the AR12120) to the battery leads. If using a

regulator, install it per the guidelines included with the regulator.

Mounting the Remote Receivers

Antenna Polarization

For optimum RF link performance, it’s important that the remote antennas be

mounted in an orientation that allows for the best possible signal reception when

the aircraft is at all attitudes and positions. This is known as antenna polariza-

tion and allows the greatest exposed visual cross-section of the antennas from

all aircraft orientations. If three antennas are used, it is recommended that one

antenna be mounted vertically, one horizontally in-line with the fuselage and one

horizontally perpendicular to the fuselage (see illustrations below).This covers

the X,Y and Z axes for superb cross-section visibility in all aircraft orientations.

An optional fourth antenna can be added at an intermediate angle to offer even

greater RF link security and system redundancy.

• 35% aerobatic plane with single NiMH battery and three remote receivers

• 35% aerobatic plane with dual NiMH batteries and three remote receivers

• 40% aerobatic plane with dual LiPo batteries, dual regulators and four remote

receivers

• Jet with dual LiPo batteries, dual regulators and four remote receivers

AR12100

REG-1

REG-2

AR12100

REG-1

REG-2

Remote Receiver Placement Examples

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Spektrum SPM18000 DX18QQ User Manual Page 57