Spektrum SPMAR12120 User Manual [en, de, fr, it]

AR12120 PowerSafe™ User Guide

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AR12120 PowerSafe Bedienungsanleitung

Guide de l’utilisateur - AR12120 PowerSafe

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AR12120 PowerSafe™ Guida dell’utente

NOTICE

All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.

Meaning of Special Language

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product:

NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND a little or no possibility of injury.

CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.

WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superﬁcial injury.

WARNING: Read the ENTIRE instruction manual to become familiar with

the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury.

This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with incompatible components or augment product in any way without the approval of Horizon Hobby, Inc. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.

WARNING AGAINST COUNTERFEIT PRODUCTS

Thank you for purchasing a genuine Spektrum product. Always purchase from a Horizon Hobby, Inc. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.

Age Recommendation: Not for children under 14 years. This is not a toy.

NOTICE: This product is only intended for use with unmanned, hobby-grade, re-

mote-controlled vehicles and aircraft. Horizon Hobby disclaims all liability outside of the intended purpose and will not provide warranty service related thereto.

WARRANTY REGISTRATION

Visit www.spektrumrc.com/registration today to register your product.

AR12120 PowerSafe User Guide

The Spektrum AR12120 PowerSafe™ offers the ultimate solution for powering high-current draw radio systems. In aircraft with multiple high-current draw servos (e.g. giant-scale aircraft, jets, etc.), the AR12120 PowerSafe can provide peak current of up to 50 amps and offers true dual battery redundancy and a fail-on soft switch for the ultimate in reliability. By locating up to four remote receivers throughout the aircraft, the RF link can be optimized in even the most demanding aircraft installations that have signiﬁcant conductive materials like carbon, stainless steel bypass tubes, tuned exhausts, etc. For models high in carbon ﬁber content the SPM9646 DSMX Carbon Fiber Remote Receiver is compatible with the AR12120.

Applications

• Giant-scale aircraft

• Jets with multiple high-current draw servos

• Scale aircraft with multiple high-current draw servos and accessories (e.g.

lights, ESCs, air valves, etc.)

• Scale helicopters

Features

• True dual battery redundancy—each battery is isolated and if one fails/shorts

the other takes over.

• Utilizes up to four remote receivers for the ultimate RF link in even the most

demanding applications.

• Up to 35 amps continuous and 50 amps peak current handling capability

• Fail-on soft switch in case the switch is damaged

• Two types of failsafe—SmartSafe™ (throttle only) and preset failsafe (all servos)

• QuickConnect—if a power interruption (brownout) occurs, the system

reconnects in less than 1/2 second

• Flight Log compatible

• Heavy 16AWG dual battery leads with pre-wired E-ite® EC3™ connectors

• Compatible with all Spektrum™ and JR® full range radio and module systems

• 2048 resolution

• X Plus™ compatible

Important

The PowerSafe main unit is not a receiver. The PowerSafe’s main unit is a power distribution center that provides up to 35-amps continuous and 50-amps peak current to power your system. Through extensive testing our engineers discovered that mounting the receiver in the typical location in sophisticated aircraft (an aircraft with many high-current draw servos and/or conductive materials), at the end of the servo and battery leads, is not the optimum location to provide the clearest RF signal. The AR12120 PowerSafe uses up to four (a minimum of three are required) remotely mounted receivers that can be optimally placed in your aircraft providing the best possible RF link in the most demanding conditions.

Speciﬁcations PowerSafe Main Unit Voltage input: 6.0 to 10.0 volts Minimum operational voltage: 3.5 volts Continuous current: 35 amps Peak current: 50 amps Resolution: 2048 Main unit dimensions LxWxH: 46.5 x 52 x 15.3mm Weight: 72 g Connector type: EC3 Regulator: None Remote Receiver Dimensions LxWxH: 25.8 x 20.2 x 6.8mm Weight: 3 g

Items Included

SPMAR12120 PowerSafe Main Unit SPM9645 Four Remote Receivers SPM6820 Soft Switch SPM9014 One 36“ Remote Receiver Extension SPM9013 One 24” Remote Receiver Extension SPM9012 One 12” Remote Receiver Extension SPM9011 One 9” Remote Receiver Extension

SPM6803 Male/Female Bind Plug EFLAEC302 Two EC3 Battery Connectors, Female

Instruction Manual

Two JR-type Charge Receptacles

Battery Requirements Using One Battery

The PowerSafe allows the option of using one or two battery packs. When using

one battery simply plug the battery into either one of the two battery connectors (BATT 1 or BATT2). Be sure to secure the unused battery connector. Note that the open contacts of the unused battery are not back powered (not electrically hot), however, the unused connector should be secured to prevent it from entangling

during ight. When the system is powered using one battery, a single blue LED will

constantly emit when the system is powered on.

Using Two Batteries

The PowerSafe offers a true redundant dual battery system. When using two battery

packs, each pack functions independently and is isolated from the other, so that if one pack should fail (open circuit, short-circuit, or become discharged), the other

battery will provide power to operate the system. When using dual batteries, it’s

important that both batteries be of the same capacity and ideally of the same age and condition.

It’s normal for one battery to discharge slightly more than the other. This is the nature of a truly redundant isolated battery system. The battery that has the higher

voltage or lower internal resistance will discharge at a faster rate. Generally the

difference is negligible (less than 10%). Because of this it’s normal for only one

blue LED (Batt 1 or Batt 2) to be on when the system is not under a heavy current

load depending on which pack is providing more power.

When using two batteries, the total available capacity equals the sum total of both batteries e.g., BATT1—2000mAh + BATT2- 2000mAh = a total capacity of

4000mAh. 12- and 24-inch EC3 battery extensions are available for installations where the battery is located a distance from the main PowerSafe unit.

Using Dual Voltage Regulators

Spektrum offers a 7.5 amp (11-amp peak) 6.0 volt regulator (SPMVR6007) speciﬁcally designed for use with the AR12120 PowerSafe.

IMPORTANT: When using two batteries powered through two regulators, each

regulator operates independently and it’s common for one battery to be discharged at a slightly higher rate depending on the condition of the battery (internal resistance, voltage, etc.) and the tolerance of the regulators. This causes one battery to discharge before the other and it’s important to check each battery using a loaded battery tester (HAN171) at a recommended 1-amp load before

each ight monitoring the voltage of each pack and recharging when the

weakest pack reaches 40% capacity. (See Battery Capacity pg. 5)

Battery Capacity

It’s important to select a battery(s) that has more than adequate capacity to provide

the necessary ight time. Our staff has been recording in-ight data to determine typical current consumption of aircraft in ight. Following are two graphs that illustrate the in-ight current draw of the radio system. Current draws may vary depending on your servos, installation and ying style.

File: JasonNoll.FDR Session:All Sessions

The following setup is shown as a worst-case scenario indicative of some aerobatic pilots’ setups. It is not recommended to use this setup without proper voltage regulation for your servos.

Airplane 40% YAK

Servos 9-JR8711’s 1-8317 (throttle)

Batteries Two 4000mAh 2-cell 7.4-volt Li-Pos

Regulator None

Engine DA150 Weight 40 lb

Flight envelope Aggressive 3D

Average current 2.62 amps

Peak current 17.8 amps

Milliamps (used per 10-minute ight) 435mAh

JR8711’s and 8317’s are rated at a maximum of 6-volt 5-cell use. Using higher

voltages will void the warranty.

Seconds

PackAmps_A: Min 0.00 Max 17.80 Avg 2.62

35030025020015010050

450400

PackAmps_A

In the example above, the average current was 2.62 amps, which calculates to

435mAh per 10 minutes (typical ight length). It’s recommended that only 60% of

the available capacity be used to ensure plenty of reserve battery capacity. In this

example using two 4000mAh batteries (8000mAh total capacity) x 60%= 4800mAh (available usable capacity) divided by the capacity used per 10-minute ight, 435mAh would allow up to 11 ights, of 10 minutes each.

Airplane 33% Sukhoi

File: sukhio Session:All Sessions

Servos 7-JR8611’s 1-8317 (throttle)

Batteries 1- 4000mAh 2-cell 7.4-volt LiPo

Regulator 6 volts

Engine DA100 Weight 26 lb

Flight envelope Moderate 3D

Average current .82 amps

Peak current 6.92 amps

Milliamps (used per 10-minute ight) 137mAh

Seconds

PackAmps_A: Min 0.00 Max 6.92 Avg 0.82

450400350300250200150100500

Recommended Guidelines for Battery Capacity

40-45% Aerobatic aircraft w/ 9-12 high-current servos: 4000–8000mAh

33-35% Aerobatic aircraft w/ 7-10 high-current servos: 3000–6000mAh

25% Quarter Scale Aerobatic aircraft w/ 5-7 high-current servos: 2000–4000mAh

Jets - BVM Super BANDIT, F86, Euro Sport, etc.: 3000–6000mAh

Giant-Scale Jets - BVM Ultra Bandit:4000–8000mAh

Scale aircraft - The varieties of scale aircraft and the accessories they use vary tremendously, making it difﬁcult to give capacity recommendations for these types

of aircraft. Using the previously mentioned aerobatic guidelines relative to the size

and number of servos used will provide a conservative capacity for your scale

aircraft. As always, check battery charge condition before each ight.

6.5

5.5

4.5

PackAmps_A

3.5

2.5

1.5

0.5

Battery Voltage

IMPORTANT: D0 NOT use a 4-cell 4.8-volt battery to power the PowerSafe.

Four-cell 4.8-volt batteries do not provide enough voltage headroom (additional margin needed) necessary to power the system when heavily loaded. Under load

the system voltage can drop below the voltage system’s minimum operating voltage threshold (3.5 volts) and cause loss of control.

The PowerSafe is capable of handling voltages from 6.0 to 10.0 volts. The voltage limitations are generally the servos. Most servos are compatible with 5-cell 6-volt packs. Five-cell 6-volt NiMH packs have become the standard for many giant-scale applications.

Be aware that NiMH batteries have a tendency to false peak when being fast charged. Be especially careful when using NiMH batteries that they are fully charged and have not false peaked.

Many pilots are using 2-cell LiPo batteries to power their aircraft. LiPo’s offer

greater capacity for their size and weight, and are easier to manage when charging.

Before using LiPo batteries, please check the voltage specications of your servos. Use of a voltage regulator, such as the Spektrum VR6007 (SPMVR6007), might be

necessary.

When a battery is connected to the PowerSafe, a low current drain of less than

1mA occurs even when the switch is turned off. If the system is going to be stored for any length of time, it’s important that the battery(s) be disconnected from the PowerSafe to prevent over discharge.

Installation

The PowerSafe requires a minimum of three remote receivers to operate, and one receiver must be plugged into the A receiver port. Four remote receivers are included and, in most cases, it is recommended that three or four receivers be used. Each receiver functions independently and additional receivers (up to four) offer a more secure RF link in difﬁcult environments. The added security of redundancy should a failure occur will outweigh the slight additional penalties of cost and weight.

Installing the PowerSafe Main Unit

1. Using foam or thick double-sided foam tape and tie wraps, secure the

main PowerSafe unit in the position where you would normally mount the receiver.

2. Mount the switch on the side of your aircraft and insert the switch plug in the

port in the main unit marked SWITCH.

The PowerSafe uses a speciﬁcally designed switch. Conventionally wired switches are not compatible with the PowerSafe.

Installing Optional X-Plus 8 Module

When using an X-Plus™ receiver and module it is recommended the X-Plus 8 module be mounted as close to the receiver as possible. When using the X-Plus power jumper lead mounting the X-Plus 8 module close will minimize the current

loss from the receiver. Servo extensions can be use with each servo, it is recommended to use heavy 22 gauge wire with gold plated connectors.

If an auxiliary battery or batteries are to be used there is no need for the X-Plus

power jumper. The X-Plus 8 module can be mounted as far away from the receiver

when using the auxiliary power option.

X+1 X+2 X+3 X+4 X+5 X+6

X+7 X+8

BATT/JMPR BATT/JMPR SRXL

Installing the Batteries

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

and install the battery(s)/regulator(s) in your aircraft. Connect the battery to the PowerSafe. 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 possible attitudes and positions. This is known as antenna polarization. This 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 on pages 11-12). This covers the X,Y and Z axis offering superb cross-section visibility in all aircraft orientations. An optional fourth antenna can be added at an intermediate angle offering even greater RF link security and system redundancy.

Locating the Remote Receivers

While Spektrum 2.4GHz systems are far more resistant to interference caused from

internal RF generating sources, the remote receivers should be mounted as far away as practical (typically 4” or greater if possible) from the following:

• Ignition systems • Ignition batteries

• Ignition switches • Engines

• ECU pumps • Electric motors

• Receiver batteries • Fuel tanks

• Metal bypass tubes • High-temperature components like exhaust systems

• High-vibration areas • Any signicant metallic conductive components

The remote antennas should be mounted a minimum of at least 2” apart from each other as greater antenna separation gives improved path diversity (RF link performance) in critical environments. In large aircraft where space is not an issue, it is highly recommended that the antennas be mounted throughout the aircraft as illustrated. Spektrum offers remote receiver extensions ranging from 6” to 36” allowing the receivers to be mounted in the most optimum locations throughout the aircraft.

Using double-sided foam tape and tie wraps, mount a minimum of three and up to

four remote receivers in your aircraft as per the illustrations and plug them into the receiver ports.

The following are illustrations of typically recommended installations. Note the remote receiver orientation.

• 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

Plugging in the Servos

Plug the servo leads into the appropriate ports in the PowerSafe. You are now ready to bind the system.

IMPORTANT: When using Y-harnesses or servo extensions, it’s important

to use standard non-ampliﬁed Y-harnesses and servo extensions as this can/ will cause the servos to operate erratically or not function at all. Ampliﬁed Y-harnesses were developed several years ago to boost the signal for some older PCM systems and should not be used with Spektrum equipment. Note that when converting other models to Spektrum be certain that all ampliﬁed Y-harnesses and/or servo extensions are replaced with conventional, non-ampliﬁed versions.

The JR PCM Y-Harness with Amplier (JRPA133) is not compatible with the

AR12120 and should not be used.

Binding

NOTICE: In order for the system to operate, one remote receiver must be

plugged into receiver port A and two more receivers must be plugged into

any other ports. When binding the PowerSafe with three remote receivers, if a

fourth remote receiver is added, the system must be re-bound to recognize the additional remote.

It’s necessary to bind the AR12120 to the transmitter so that the AR12120 will only recognize that speciﬁc transmitter, ignoring signals from any other sources. If the PowerSafe is not bound to the transmitter, the system will not operate. During binding, the servo’s failsafe positions are stored.

How To Bind the PowerSafe

1. With the system hooked up and all remote receivers attached as described

previously, insert the bind plug in the BIND/DATA port in the PowerSafe.

2. Turn on the soft switch. Note that the LEDs on all receivers should be ashing

indicating that the receivers are ready to bind.

3. Establish the desired failsafe stick positions, normally low throttle and ight

controls neutral.

4. Follow the procedures of your transmitter to enter it into bind mode. The system

will connect within a few seconds. The LEDs on all receivers should go solid,

indicating the system has connected.

5. Remove the bind plug and store it in a convenient place.

6. After you’ve programmed your model, it’s important to rebind the system so the

true low throttle and neutral control surface positions are programmed.

Failsafe Functions

The AR12120 PowerSafe features two types of failsafe: SmartSafe

™

and Preset

Failsafe.

SmartSafe Failsafe

This type of failsafe is recommended for most types of giant-scale aircraft. Here’s how SmartSafe works:

Receiver Power Only

When the receiver only is turned on (no transmitter signal is present), all servos

except for the throttle are driven to their preset failsafe positions, normally all control surfaces at neutral and the landing gear down. These failsafe positions are stored in the receiver during binding. At this time the throttle channel has no output, to avoid operating or arming an electronic speed control (if used). In glow-

-powered models, the throttle servo receives no input so it remains in its current position. Some analog servos will coast (move when powered up) slightly even though there is no signal present. This is normal.

The receivers remain in standby mode with the blue battery LEDs lit. When the transmitter is turned on, the receiver locates the signal (GUID), connects and normal control resumes. When connected, the amber LEDs on all attached remote

receivers will be on.

After Connection

When the transmitter and receiver are turned on and after the receiver connects to

the transmitter and normal control of all channels occurs, if loss of signal occurs, SmartSafe drives the throttle servo to its preset failsafe position (low throttle) that

was set during binding. All other channels hold their last position. When the signal

is regained, the system immediately regains control.

SmartSafe:

• Prevents unintentional electric motor response on start-up.

• Establishes low-throttle failsafe and maintains last-commanded control surface

position if the RF signal is lost. Note: Failsafe positions are stored via the stick and switch positions on the transmitter during binding.

Preset Failsafe

Preset Failsafe is ideal for sailplanes and is preferred by some modelers for their glow and gas powered aircraft. Here’s how Preset Failsafe works.

Receiver Power Only

When the receiver only is turned on (no transmitter signal is present), all servos

position. The receiver remains in standby mode with the blue battery LEDs lit. When the transmitter is turned on, the receiver locates the signal (GUID), connects and normal control resumes. When connected, the amber LEDs on all attached

remote receivers will be on.

After Connection

When the transmitter and receiver are turned on and after the receiver connects to

the transmitter and normal control of all channels occurs, if loss of signal occurs Preset Failsafe drives all servos to their preset failsafe positions. For sailplanes it’s

recommended that the spoilers/aps deploy to dethermalize the aircraft, preventing a yaway. Some modelers prefer to use this failsafe system to program a slight turn and low throttle to prevent their aircraft from ying away. When the signal is

regained, the system immediately (less than 4 ms) regains control.

Preset Failsafe:

• Prevents unintentional electric motor response on start-up.

• Drives all servos, except for the throttle to their preset failsafe positions, if the

receiver only is powered and no signal is present.

• Establishes preset failsafe servo positions for all channels if the signal is lost.

Programming SmartSafe

During the binding process, the bind plug is left in throughout the process and is removed only after the receiver connects to the transmitter. After the connection is made, conﬁrmed by operating the servos, the bind plug can be removed. The receiver is now programmed for SmartSafe.

Programming Preset Failsafe

During the binding process the bind plug is inserted in the bind port, then the

receiver is powered up. The LEDs in each receiver should blink, indicating that the

receiver is in bind mode. Now before binding the receiver to the transmitter and

with the receiver in bind mode, remove the bind plug. The LEDs will continue to blink. With the control sticks and switches in the desired failsafe positions, bind

the transmitter to the receiver by putting the transmitter into bind mode. The system should connect in less than 15 seconds. The receiver is now programmed for preset failsafe.

Failsafe positions are stored via the stick and switch positions on the transmitter during binding.

Standard Range Testing

Press and hold the bind button

30 paces (90 feet/28 meters)

Before each ying session, and especially with a new model, it’s important to perform a range check. All Spektrum aircraft transmitters incorporate a range testing system, which reduces the output power allowing a range check.

Range Testing

1. With the model resting 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 ying position and put your

transmitter into range test 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 Horizon Product Support for further assistance.

Advanced Range Testing Using a Flight Log

The Standard Range Testing procedure is recommended for most sport aircraft. For sophisticated aircraft that contain signiﬁcant amounts of conductive materials (e.g. turbine powered jets, some types of scale aircraft, aircraft with carbon fuselages, etc.), the following advanced range check will conﬁrm that all remote receivers are operating optimally and that the installation (position of the receivers) is optimized for the speciﬁc aircraft. This Advanced Range Check allows the RF performance of each remote receiver to be evaluated and to optimize the locations of each individual remote receiver.

Advanced Range Testing

1. Plug a Flight Log into the data port in the AR12120 and turn on the system (Tx

and Rx).

2. Advance the Flight Log until frame losses are displayed by pressing the button

on the Flight Log.

3. Have a helper hold your aircraft while observing the Flight Log data.

4. Standing 30 paces away from the model, face the model with the transmitter in

your normal ying position and put your transmitter into range test mode. This

causes reduced power output from the transmitter.

5. Have your helper position the model in various orientations (nose up, nose

down, nose toward the Tx, nose away from the Tx, etc.) while your helper

watches the Flight Log noting any correlation between the aircraft’s orientation

and frame losses. Do this for 1 minute. The timer on the transmitter can be used here. For giant-scale aircraft, it’s recommended that the airplane be tipped up on its nose and rotated 360 degrees for one minute then the data recorded. Next place the airplane on its wheels and do a second test, rotating the aircraft in all directions for one minute.

6. After one minute, a successful range check will have less than ten recorded

frame losses. Scrolling the Flight Log through the antenna fades (A, B, L, R)

allows you to evaluate the performance of each receiver. Antenna fades should be relatively uniform. If a speciﬁc antenna is experiencing a high degree of fades then that antenna should be moved to a different location.

7. A successful advanced test will yield the following: H - 0 holds F - less than 10 frame losses

A, B, R, L - Frame losses will typically be less than 100. It’s important to

compare the relative frame losses. If a particular receiver has a signiﬁcantly higher frame loss value (2 to 3X) then the test should be redone. If the same results occur, move the offending receiver to a different location.

Flight Log

The Spektrum Flight Log (SPM9540) is compatible with the AR12120 PowerSafe. The Flight Log displays overall RF link performance as well as the individual

internal and external receiver link data. Additionally it displays receiver voltage.

Using the Flight Log

After a ight and before turning off the receiver or transmitter, plug the Flight Log

into the Data port on the PowerSafe. The screen will automatically display voltage

e.g. 6v2= 6.2 volts. When the voltage reaches 4.8 volts or less, the screen will ash

indicating low voltage. Press the button to display the following information:

A - Antenna fades on antenna A B - Antenna fades on antenna B L - Antenna fades on the left antenna R - Antenna fades on the right antenna F - Frame loss H - Holds

Antenna fades—represents the loss of a bit of information on that specic antenna. Typically it’s normal to have as many as 50 to 100 antenna fades during a ight. If any single antenna experiences over 500 fades in a single ight, the antenna

should be repositioned in the aircraft to optimize the RF link.

Frame loss—represents simultaneous antenna fades on all attached receivers. If the RF link is performing optimally, frame losses per ight should be less than 20.

The antenna fades that caused the frame loss are recorded and will be added to the total antenna fades.

A Hold occurs when 45 consecutive frame losses occur. This takes about one

second. If a hold occurs during a ight, it’s important to reevaluate the system,

moving the antennas to different locations and/or checking to be sure the transmitter and receivers are all working correctly. The frame losses that led to the hold are not added to the total frame losses.

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

The remote receivers now included with the AR12120 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 ash 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 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 reco-

nnect to the last two frequencies they were connected to. If the two frequencies are present (the transmitter was left on) the system reconnects, typically in 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 (DSM2 only).

If a brownout occurs in-ight it is vital that the cause of the brownout be determi-

ned and corrected. QuickConnect and Brownout Detection are designed to allow you to safely y through most short duration power interruptions. However, the root cause of these interruptions must be corrected before the next ight to prevent

catastrophic safety issues.

Tips for Getting the Most from your PowerSafe System

Flight Log

The optional Flight Log is highly recommended. The Flight Log can be used to test

the battery system using the built-in voltmeter and applying a load to the servos/ control surfaces. If a regulator is used the voltage should never drop below the

rated voltage (6.0 volts) even under a heavy load. When using direct batteries the

loaded voltage should never drop below 5.0 volts.

When the system is rst installed it is highly recommend that an advanced range check be performed. (See advanced range check on page 18.) If any receiver is

performing less than optimally (higher than normal fades) that receiver should be repositioned and the advanced range test until low fades are recorded.

During rst ights with sophisticated airplanes (signicant conductive materials

onboard, many high-current draw servos, carbon construction, etc.), it’s a good

practice to keep your rst ight in close then conrm the RF link performance using the Flight Log to determine the performance of each attached receiver. Extend the distance on subsequent ights and record the Flight Log data conrming that all systems are

performing properly.

Storing Your System

If the system will be stored for more than two weeks, it’s important that the battery be disconnected from the PowerSafe or from the regulator (if used). The PowerSafe draws a small amount of current (less than 1mA) even when the switch is turned off and the battery will drain and could become damaged if left attached for an exten-

ded period. This is especially important when using LiPo batteries as irreversible

damage could occur to your batteries.

Using Nickel-Metal Hydride Batteries

The latest generation of NiMH batteries incorporates a new chemistry mandated to be more environmentally friendly. These batteries, when charged with peak detection 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 that a fast charge with a meter that monitors the input mAh be used and that the expected charge capacity is reached during charge.

2.4GHz Troubleshooting Guide

Problem Possible Cause Solution

Aircraft will not “throttle up”but all other controls seem to function

LED on aircraft remains ashing

and cannot be controlled by transmitter

User did not lower throttle

trim and throttle stick prior to initializing the aircraft

Throttle channel is reversed. Futaba transmitters (equipped with Spektrum modules) may require you to reverse the throttle channel

User did not wait at least

5 seconds after powering the transmitter prior to connecting the ight battery to the aircraft

User bound the aircraft to

a different transmitter

Transmitter was too close to aircraft during the initialization process

Lower throttle stick and

throttle trim to their lowest settings

Reverse throttle channel on speciﬁc transmitter if applicable

Unplug, then reconnect ight battery

Rebind aircraft to your desired compatible transmitter

Move transmitter (powered on) a few feet from the aircraft prior to reconnecting

the ight battery

Controls appear to be reversed after binding to a different transmitter

Aircraft does not function after

connecting ight

battery and aircraft smells burnt

User did not initially set

up transmitter prior to binding to the aircraft

User may have accidentally plugged the ight

battery in with the wrong polarity

See the “Advanced Programming” section of this manual

Replace AR12120 board and ensure the RED polarity marks are facing the same direction when

connecting the ight battery

to the AR12120 board

Problem Possible Cause Solution

Your transmitter and

The system will not connect

Receiver quits responding during operation

receiver are too close together. They should be

8 to 12 feet apart

You are around metal objects

Model selected is not the model bound to

Your transmitter was accidentally put into bind mode and is not bound to your receiver anymore

Inadequate battery voltage

Loose or damaged wires

or connectors between battery and receiver

Move transmitter 8 to 12 feet

from receiver

Move to an area with less metal

Check model selected and ensure you are bound to that model

Rebind your transmitter and receiver

Charge batteries. Spektrum receivers require at least

3.5V to operate. An inadequate power supply can allow voltage to momentarily drop below 3.5V and cause the receiver to brown out and reconnect

Check the wires and connection between battery and receiver. Repair or replace wires and/or connectors

Receiver loses its bind

Receiver blinking at landing

Transmitter stand or tray could be depressing the bind button

Bind button pressed before transmitter turned on

System turned on and connected then receiver turned off without turning off transmitter

If stand is depressing bind button, remove from stand and rebind

Rebind your system following binding instructions

Turn off transmitter when receiver is turned off

1-Year Limited Warranty

What this Warranty Covers

Horizon Hobby, Inc., (Horizon) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship for a period of 1 years from the date of purchase.

What is Not Covered

This warranty is not transferable and does not cover (i) cosmetic damage, (ii)

damage due to acts of God, accident, misuse, abuse, negligence, commercial use,

or due to improper use, installation, operation or maintenance, (iii) modiﬁcation of or to any part of the Product, (iv) attempted service by anyone other than a Horizon Hobby authorized service center, or (v) Products not purchased from an authorized Horizon dealer.

OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES NO OTHER WARRANTY OR REPRESENTATION, AND HEREBY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER’S INTENDED USE.

Purchaser’s Remedy

Horizon’s sole obligation and purchaser’s sole and exclusive remedy shall be that Horizon will, at its option, either (i) service, or (ii) replace, any Product determined by Horizon to be defective. Horizon reserves the right to inspect any and all Product(s) involved in a warranty claim. Service or replacement decisions are at the sole discretion of Horizon. Proof of purchase is required for all warranty claims.

SERVICE OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY.

Limitation of Liability

HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Further, in no event shall the liability of

Horizon exceed the individual price of the Product on which liability is asserted. As Horizon has no control over use, setup, ﬁnal assembly, modiﬁcation or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. By the act of use, setup or assembly, the user accepts all resulting liability. If you as the purchaser or user are not prepared to accept the liability associated with the use of the Product, purchaser is advised to return the Product immediately in new and unused condition to the place of purchase.

Law

These terms are governed by Illinois law (without regard to conict of law

principals). This warranty gives you speciﬁc legal rights, and you may also have other rights which vary from state to state. Horizon reserves the right to change or modify this warranty at any time without notice.

WARRANTY SERVICES Questions, Assistance, and Services

Your local hobby store and/or place of purchase cannot provide warranty support or service. Once assembly, setup or use of the Product has been started, you must contact your local distributor or Horizon directly. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance. For questions or assistance, please direct your email to product-

support@horizonhobby.com, or call 877.504.0233 toll free to speak to a Product

Support representative. You may also ﬁnd information on our website at www. horizonhobby.com.

Inspection or Services

If this Product needs to be inspected or serviced, please use the Horizon Online Service Request submission process found on our website or call Horizon to obtain a Return Merchandise Authorization (RMA) number. Pack the Product securely using a shipping carton. Please note that original boxes may be included, but are not designed to withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted at our facility. An Online Service Request is available at http://www.horizonhobby.com under the Support tab. If you do not have internet access, please contact Horizon Product Support to obtain a RMA number along with instructions for submitting

your product for service. When calling Horizon, you will be asked to provide your

complete name, street address, email address and phone number where you can

be reached during business hours. When sending product into Horizon, please

include your RMA number, a list of the included items, and a brief summary of the problem. A copy of your original sales receipt must be included for warranty consideration. Be sure your name, address, and RMA number are clearly written on the outside of the shipping carton.

Notice: Do not ship LiPo batteries to Horizon. If you have any issue with a LiPo

battery, please contact the appropriate Horizon Product Support ofﬁce.

Warranty Requirements For Warranty consideration, you must include your original sales receipt verifying the proof-of-purchase date. Provided warranty conditions

have been met, your Product will be serviced or replaced free of charge. Service or replacement decisions are at the sole discretion of Horizon.

Non-Warranty Service Should your service not be covered by warranty service will be completed and payment will be required without notiﬁcation or estimate of the expense unless the expense exceeds 50% of the retail purchase cost. By submitting the item for service you are agreeing to payment of the service

without notiﬁcation. Service estimates are available upon request. You must include this request with your item submitted for service. Non-warranty service estimates will be billed a minimum of ½ hour of labor. In addition you will be billed for return freight. Horizon accepts money orders and cashiers checks, as well as Visa, MasterCard, American Express, and Discover cards. By submitting any item to Horizon for service, you are agreeing to Horizon’s Terms and Conditions found on our website http://www.horizonhobby.com/Service/Request/.

Warranty and Service Contact Information

Country of Purchase

United

States of America

United

Kingdom

Germany

France

China

Horizon Hobby Address

Horizon Service Center

(Electronics and engines)

Horizon Product Support (All other products)

Horizon Hobby

Limited

Horizon Technischer Service

Horizon Hobby SAS

Horizon Hobby – China

4105 Fieldstone Rd Champaign, Illinois

61822 USA

4105 Fieldstone Rd Champaign, Illinois

61822 USA

Units 1-4 Ployters Rd

Staple Tye Harlow, Essex

CM18 7NS United Kingdom

Christian-Junge-

Straße 1 25337 Elmshorn

Germany 14 Rue Gustave Eiffel

Zone d’Activité du Réveil Matin 91230 Montgeron

Room 506, No. 97 Changshou Rd. Shanghai, China 200060

Phone Number/Email Address

877-504-0233 Online Repair Request: visit www.horizonhobby.com/ service

877-504-0233

productsupport@ horizonhobby.com

+44 (0) 1279 641 097 sales@horizonhobby.co.uk

+49 (0) 4121 2655 100 service@horizonhobby.de

+33 (0) 1 60 47 44 70 infofrance@horizonhobby. com

+86 (021) 5180 9868 info@horizonhobby.com.cn

Customer Service Information

Country of Purchase

United

States of America

Horizon Hobby Address

Sales

4105 Fieldstone Rd Champaign, Illinois

61822 USA

Phone Number/Email Address

(800) 338-4639 sales@horizonhobby.com

United

Kingdom

Horizon Hobby

Limited

Units 1-4 Ployters Rd

Staple Tye Harlow, Essex

CM18 7NS United Kingdom

+44 (0) 1279 641 097 sales@horizonhobby.co.uk

Country of Purchase

Horizon Hobby Address

Phone Number/Email Address

Christian-Junge-

Germany

Horizon Hobby

GmbH

Straße 1 25337 Elmshorn

+49 4121 46199 60 service@horizonhobby.de

Germany

France

China

Horizon Hobby SAS

Horizon Hobby – China

14 Rue Gustave Eiffel Zone d’Activité du Réveil Matin 91230 Montgeron

Room 506, No. 97 Changshou Rd. Shanghai, China 200060

+33 (0) 1 60 47 44 70 infofrance@horizonhobby. com

+86 (021) 5180 9868 info@horizonhobby. com.cn

Compliance Information for the European Union

Declaration of Conformity

(in accordance with ISO/IEC 17050-1) No. HH2012011504 Product(s): AR12120 Rx

Item Number(s): SPMAR12120 Equipment class: 1

The objects of declaration described above are in conformity with the requirements of the speciﬁcations listed below, following the provisions of the European R&TTE directive 1999/5/EC:

EN 301 489-1 V1.7.1: 2006 EN 301 489-17 V1.3.2: 2008

Signed for and on behalf of: Horizon Hobby, Inc.

Champaign, IL USA Jan 15, 2012

International Operations and Risk Management

Steven A. Hall

Vice President

Horizon Hobby, Inc.

Instructions for disposal of WEEE by users in the European Union

This product must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of their waste equipment by handing it over to a designated collections point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city ofﬁce, your household waste disposal service or where you purchased the product.

Alle Anweisungen, Garantien und anderen zugehörigen Dokumente können im eigenen Ermessen von Horizon Hobby, Inc. jederzeit geändert werden. Die aktuelle Produktliteratur finden Sie auf horizonhobby.com unter der Registerkarte „Support“ für das betreffende Produkt.

Die folgenden Begriffe werden in der gesamten Produktliteratur verwendet, um auf unterschiedlich hohe Gefahrenrisiken beim Betrieb dieses Produkts hinzuweisen: HINWEIS: Wenn diese Verfahren nicht korrekt befolgt werden, können sich möglicherweise Sachschäden UND geringe oder keine Gefahr von Verletzungen ergeben. ACHTUNG: Wenn diese Verfahren nicht korrekt befolgt werden, ergeben sich wahrscheinlich Sachschäden UND die Gefahr von schweren Verletzungen. WARNUNG: Wenn diese Verfahren nicht korrekt befolgt werden, ergeben sich wahrscheinlich Sachschäden, Kollateralschäden und schwere Verletzungen ODER mit hoher Wahrscheinlichkeit oberflächliche Verletzungen.

WARNUNG: Lesen Sie die GESAMTE Bedienungsanleitung, um sich vor

dem Betrieb mit den Produktfunktionen vertraut zu machen. Wird das Produkt nicht korrekt betrieben, kann dies zu Schäden am Produkt oder persönlichem Eigentum führen oder schwere Verletzungen verursachen. Dies ist ein hochentwickeltes Hobby-Produkt. Es muss mit Vorsicht und gesundem Menschenverstand betrieben werden und benötigt gewisse mechanische Grundfähigkeiten. Wird dieses Produkt nicht auf eine sichere und verantwortungsvolle Weise betrieben, kann dies zu Verletzungen oder Schäden am Produkt oder anderen Sachwerten führen. Dieses Produkt eignet sich nicht für die Verwendung durch Kinder ohne direkte Überwachung eines Erwachsenen. Versuchen Sie nicht ohne Genehmigung durch Horizon Hobby, Inc., das Produkt zu zerlegen, es mit inkompatiblen Komponenten zu verwenden oder auf jegliche Weise zu erweitern. Diese Bedienungsanleitung enthält Anweisungen für Sicherheit, Betrieb und Wartung. Es ist unbedingt notwendig, vor Zusammenbau, Einrichtung oder Verwendung alle Anweisungen und Warnhinweise im Handbuch zu lesen und zu befolgen, damit es bestimmungsgemäß betrieben werden kann und Schäden oder schwere Verletzungen vermieden werden.

WARNUNG ZU GEFÄLSCHTEN PRODUKTEN

Vielen Dank, dass Sie sich dieses Spektrum Produkt gekauft haben. Bitte kaufen Sie Ihre Spektrum Produkte immer von einem autorisiertem Händler um sicherzu stellen, dass Sie ein authentisches hochqualitatives original Spektrum Produkt gekauft haben. Horizon Hobby lehnt jede Unterstützung, Service oder Garantieleistung von gefälschten Produkten oder Produkten ab die von sich in Anspruch nehmen kompatibel mit Spektrum oder DSM zu sein.

Nicht geeignet für Kinder unter 14 Jahren. Dies ist kein Spielzeug. HINWEIS: Dieses Produkt ist ausschließlich für die Verwendung in unbemannten

ferngesteuerten Fahrzeugen und Fluggeräten im Hobbybereich vorgesehen. Horizon Hobby lehnt jede Haftung und Garantieleistung ausserhalb der vorgesehen Verwendung ab.

GARANTIE REGISTRIERUNG Registrieren Sie bitte Ihr Produkt unter www.spektrumrc.com/registration.

HINWEIS

Spezielle Bedeutungen

AR12120 PowerSafe User Guide

Spektrums AR12120 PowerSafe bietet die ultimative Lösung für die Versorgung von RC Empfangssystemen mit hohem Strombedarf (Große Scale Flugzeuge, Jets etc.) Der AR12120 kann Spannungen von bis zu 50 Ampere liefern und bietet echte duale Akku Redundanz. Das System ist mit einem Softschalter ausgestattet. Sollte dieser beschädigt werden oder ausfallen arbeitet das System weiter. Mit der Bestückung von bis zu 4 Empfangssatelliten können selbst technisch sehr anspruchsvolle Flugzeuge sicher ausgerüstet werden, die einen Anteil an RF schirmenden Materialien haben. Für Modell mit einem hohen Anteil an Carbon/ Kohlefaserbauteilen ist der SPM9646 DSMX Carbon Satellitenempfänger kompatibel mit dem AR12120.

Anwendungen:

• Große Scale Flugzeuge

• Jets mit Hochleistungsservos

• Scale Flugzeuge mit Hochleistungsservos und Zusatzfunktionen (Licht, Regler,

Pneumatikventile etc..)

• Scale Helicopter

Eigenschaften

• Echte Akku Redundanz. Jeder Akku ist isoliert und übernimmt bei Ausfall des

anderen die Stromversorgung.

• Ermöglicht mit dem Einsatz von bis zu 4 Satellitenempfängern eine saubere RF

Verbindung auch in sehr anspruchsvollen RF Umgebungen.

• Liefert bis zu 35 Ampere kontinuierlich und bis zu 50 Ampere Spitzenstrom.

• Eingebautes Schalter Failsafe für den Fall dass der Schalter beschädigt wird.

• Wählbares Failsafe- SmartSafe und Preset Failsafe (alle Servos)

• Quick Connect - das System verbindet sich innerhalb einer halben Sekunde

nach einem Spannungsabfall erneut.

• Flight Log kompatibel

• Fertig konfektionierte E-ite EC3 Anschlüsse auf 16AWG Anschlußkabeln.

• Kompatibel mit allen DSM2 Spektrum und JR Modulen mit voller Reichweite.

• 2048 Schritte Auösung

• X Plus™ kompatibe

Wichtig: Das Hauptbauteil des AR12120 hat keine einzelne Empfangsfunktion, es

ist der Technikträger der Hochleistungsakkuweiche, die mit 35 Ampere Dauerstrom

und 50 Ampere Spitzenleistung das Empfangssystem versorgt. Diese Aufteilung ist das Ergebnis der Entwicklung, die der Erkenntnis folgt, dass Empfangssysteme nicht unbedingt in der Nähe von stromführenden Elementen verbaut sein sollten. Der AR 12120 nutzt als Empfänger dazu bis zu 4 Satelliten (mindestens 2 Satelliten werden benötigt), die an optimaler Stelle montiert, den sichersten und besten Empfang bieten.

Speziﬁkationen PowerSafe Main Unit Voltage input: 6.0 to 10.0 volts PowerSafe Hauptbauteil Eingangspannung: 6 bis 10 Volt

Bitte beachten Sie die Hinweise der maximalen Spannung Ihrer Servos Mindestspannung: 3,5 Volt Strom konst.: 35 Ampere

Strom max. kurz.: 50 Ampere Auﬂösung: 2048 Schritte Abmessungen Hauptbauteil: 46,5 x 52 x 15,3mm Gewicht: 72 g Anschlußtyp: EC3 Spannungsregler: keiner Satellitenempfänger: Abmessungen: 25,8 x 20,2 x 6,8mm Gewicht: 3 g

Im Lieferumfang enthalten

SPMAR12120 PowerSafe Hauptbaustein SPM9645 Vier Satellitenempfänger SPM6820 Softschalter SPM9014 Ein 91,44 cm langes Satelliten Verlängerungskabel SPM9013 Ein 60,96 cm langes Satelliten Verlängerungskabel SPM9012 SPM9012 Ein 30,48 cm langes Satelliten Verlängerungskabel SPM9012 SPM9011 Ein 22,86 cm langes Satelliten Verlängerungskabel

SPM6803 Bindestecker

EFLAEC302 Zwei EC3 Akku Buchsen

Bedienungsanleitung Zwei JR Type Ladebuchsen

Die Stromversorgung Betrieb mit einem Akku

Der PowerSafe kann mit einem oder mit zwei Akkus betrieben werden. Wenn Sie nur einen Akku verwenden, stecken Sie ihn bitte an den Akkuanschluss Ihrer Wahl. (BATT 1 oder BATT2) Wenn Sie nur einen Akku verwenden, sichern Sie bitte den zweiten Stecker im Flugzeug, dass er nicht während des Fluges herumschleudert. Der Akkustecker des nicht benutzten 2. Anschlusses steht nicht unter Strom. Ist das System mit einem Akku eingeschaltet leuchtet eine blaue LED.

Betrieb mit zwei Akkus

Der PowerSafe kann mit zwei Akkus betrieben werden, die jeweils eine komplette redundante Stromversorgung darstellen. Sollte ein Akku ausfallen durch Defekt, Entladung oder Kurzschluß übernimmt das zweite Akku die Versorgung.

Wenn Sie das System mit zwei Akkus betreiben ist es wichtig, dass beide Akkus die gleiche Kapazität und idealerweise das gleiche Alter und den gleichen Wartungszustand haben.

Es ist normal, dass sich ein Akku stärker entlädt als das andere. Der Akku mit der höheren Volt Zahl oder dem geringeren Innenwiederstand wir sich eher entladen. Normalerweise ist dieser Unterschied kleiner als 10%. Aus diesem Grund wird auch normalerweise nur eine LED leuchten, solange das System nicht unter schwerer Last steht.

Werden zwei Akkus verwendet, verdoppelt sich die totale verfügbare Kapazität auf die Summe der beiden Akkus z.B BATT1 - 2000 mAh + BATT2 2000 mAh = gesamt Kapazität 4000 mAh.

Für den Fall, dass der Akku weiter entfernt von der PowerSafe Einheit eingebaut

werden soll sind 30,48 cm und 60,96 cm Akkukabelverlängerungen verfügbar.

Betrieb mit dualen Spannungsreglern

Spektrum bietet einen 7,5 Ampere (11 Amp Peak) 6.0 Volt Spannungsregler (SPMVR6007) an der speziell für den Betrieb mit dem AR12120 PowerSafe entwickelt wurde.

WICHTIG: Wenn Sie zwei Akkus zusammen mit zwei Spannungsreglern verwenden, arbeitet jeder Regler unabhängig und es ist normal das sich ein Akku etwas mehr entlädt als der andere. Überprüfen Sie bitte daher regelmäßig den Zustand des Akku, zum Beispiel mit einen Akku Tester (Best HAN 171) und laden die Akkus nach wenn der schwächste 40% seiner Kapazität erreicht hat.

Akkukapazität

Es ist sehr wichtig, dass Sie für Ihr Modell Empfängerakkus auswählen, die eine deutliche größere Kapazität aufweisen als die die für einen Flug benötigt wird. Wir

haben zur Veranschaulichung der benötigten Kapazität Testüge durchgeführt. Die

unten stehenden Graﬁken stellen dieses dar. Der Stromverbrauch ist grundsätzlich abhängig von dem Typ der eingebauten Servos und dem Flugstil.

Das folgende Set Up kann als Extrembeispiel für Kunstug gewertet werden. Es ist

nicht ratsam dieses Set Up zu verwenden, ohne das eine ausreichende Stromversorgung sicher gestellt ist.

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