Spektrum AR6250 User Guide
Contents
1. aluminum or other metals that could weaken the signal Specifications Type DSM2 Full Range receiver for carbon aircraft Channels 6 Modulation DSM2 Dimensions 35mm x 18mm x 10mm Weight 4 grams Voltage Range 3 5 to 9 6 Resolution 1024 Compatibility All DSM2 aircraft transmitters Receiver Installation Airplanes with significant carbon fiber construction can create an RF shielding effect reducing range The AR6250 is designed to overcome these critical RF issues in carbon airplanes by outfitting the aircraft with two external antennas at specific points that will ensure secure RF coverage from all angles of the aircraft Feeder Antennas The AR6250 incorporates two feeder antennas which are designed to be easily mounted through the fuselage in carbon airplanes The receiver has two 4 inch feeder antennas Each feeder antenna includes a coaxial portion which can be thought of as an extension and an exposed 31mm tip antenna The last 31mm is the active portion of the antenna 31mm 70mm q gt lt nn IN Red LED Hold Indicator The AR6250 features a red LED labeled with H that indicates the number of holds that have occurred since the receiver was last powered on The LED will flash the number of holds then pause e g flash flash flash pause flash flash flash pause indicates three holds occurred since the receiver was last turned on Note that holds are reset to zero when the r2. without notification or estimate of the expense unless the expense exceeds 50 of the retail purchase cost By submitting the item for repair you are agreeing to payment of the repair without notification Repair estimates are available upon request You must include this request with your repair Non warranty repair estimates will be billed a minimum of 1 2 hour of labor In addition you will be billed for return freight Please advise us of your preferred method of payment Horizon accepts money orders and cashiers checks as well as Visa MasterCard American Express and Discover cards If you choose to pay by credit card please include your credit card number and expiration date Any repair left unpaid or unclaimed after 90 days will be considered abandoned and will be disposed of accordingly Please note non warranty repair is only available on electronics and model engines Electronics and engines requiring inspection or repair should be shipped to the following address Horizon Service Center 4105 Fieldstone Road Champaign Illinois 61822 All other Products requiring warranty inspection or repair should be shipped to the following address Horizon Product Support 4105 Fieldstone Road Champaign Illinois 61822 Please call 877 504 0233 or e mail us at productsupport horizonhobby com with any questions or concerns regarding this product or warranty European Union Electronics and engines requiring inspection or repair should be ship
3. Plug the servo leads into the appropriate servo ports in the receiver noting the polarity of the servo connector Consult your radio s manual for specific details as to which servo plugs into which servo port channel Step 6 Binding the Receiver The AR6250 must be bound to the transmitter before it will operate Binding is the process of teaching the receiver the specific code of the transmitter so it will only connect to that specific transmitter 1 To bind an AR6250 to a DSM2 transmitter insert the bind plug in the BATT BIND port on the receiver 2 Power the receiver through any other port Note that the orange LED on the receiver should be flashing indicating that the receiver is in bind mode and ready to be bound to the transmitter 3 Move the sticks and switches on the transmitter to the desired failsafe positions for the throttle elevator and aileron channels 4 Follow the procedures of your specific transmitter to enter Bind Mode the system will connect within a few seconds Once connected the orange LED on the receiver will go solid indicating the system is connected 5 Remove the bind plug from the BATT BIND port on the receiver before you power off the transmitter and store it in a convenient place IMPORTANT Remove the bind plug to prevent the system from entering bind mode the next time the power is turned on Step 7 Radio Setup and Programming Following the instructions in your radio manual progra
4. Spektrum AR6250 User Guide spektrum s AR6250 6 channel full range receiver is designed for installations in compact airplanes constructed of carbon fiber Carbon fiber can create an RF shielding effect that can significantly reduce radio range when using conventional receivers and antennas The AR6250 features an antenna design that overcomes RF issues in these critical environments Compatibility The AR6250 receiver features DSM2 technology and is compatible with all Spektrum and JR aircraft radios that support DSM2 technology including JR12X JRX9303 spektrum DX7 Spektrum DX6i Spektrum DX5e Spektrum Module Systems Note The AR6250 receiver is not compatible with the Spektrum DX6 parkflyer transmitter Features e 6 channel receiver optimized for carbon fiber fuselage installations e Compact endpin design is ideal for FoD and hand launch sailplanes with small cross sections e Offers superior RF coverage with through the fuselage feeder antennas e Includes one internal receiver with two 4 inch 101mm feeder antennas e Red LED indicates number of holds e Preset failsafe system on throttle aileron and elevator optimized for sailplane and F5D applications e QuickConnect with Brownout Detection Applications Compact airplanes with carbon structure including e Carbon Composite F5D electrics e Carbon hand launch and DLH gliders e Carbon Hot liners e Compact aircraft with significant conductive materials carbon
5. eceiver is turned off During the first flights of a new airplane it s recommended to check the red LED hold indicator If it s flashing it s important to optimize the installation move or reposition antennas until no hold occurs On later flights the LED Hold Indicator can be used to confirm RF link performance Step 1 Identifying the Type of Carbon Aircraft While some Hand Launch Gliders and F5D airplanes are full carbon construction many only use carbon in areas that require extra strength Some of the latest aircraft are constructed with 2 4GHz friendly fuselages meaning that the forward section of the fuselage is constructed from non conductive materials like fiberglass and Kevlar that don t affect RF The first step in a proper installation is identifying the type of fuselage A Full Carbon All components of the airplane including the entire fuselage the wing and tail are constructed of carbon fiber or have a carbon fiber weave throughout the aircraft External Antennas Full Carbon B 2 4GHz Friendly Fuselage The section forward of the wing is constructed of non conductive materials like fiberglass Kevlar etc but the wing and possibly the tail section have carbon or carbon weave construction Internal Antennas 2 4GHz Friendly Step 2 Determining Antenna Mounting Positions After determining which type of aircraft from the list above use the above illustrations as a guideline as to where the feeder anten
6. el memory potentially preventing a crash With ModelMatch each model memory has its own unique code GUID and during the binding process the code is programmed into the receiver Later when the system is turned on the receiver will only connect to the transmitter if the corresponding model memory is programmed onscreen Note If at any time you turn on the system and it fails to connect check to be sure the correct model memory is selected in the transmitter Please note that the spektrum Aircraft Modules do not have ModelMatch Tips On Using 2 4GHz While your DSM equipped 2 4GHz system is intuitive to operate functioning nearly identically to 72MHz systems following are a few common questions from customers 1 Q Which do turn on first the transmitter or the receiver A If the receiver is turned on first all channels have no output pulses When the transmitter is then turned on the transmitter scans the 2 4GHz band and acquires two open channels Then the receiver that was previously bound to the transmitter scans the band and finds the GUID Globally Unique Identifier code stored during binding The system then connects and operates normally If the transmitter is turned on first the transmitter scans the 2 4GHz band and acquires two open channels When the receiver is then turned on for a short period the time it takes to connect all channels have no output pulses The receiver scans the 2 4GHz band looking for the previou
7. emedy Horizon s sole obligation hereunder shall be that Horizon will at its option i repair or ii replace any Product determined by Horizon to be defective In the event of a defect these are the Purchaser s exclusive remedies Horizon reserves the right to inspect any and all equipment involved in a warranty claim Repair or replacement decisions are at the sole discretion of Horizon This warranty does not cover cosmetic damage or damage due to acts of God accident misuse abuse negligence commercial use or modification of or to any part of the Product This warranty does not cover damage due to improper installation operation maintenance or attempted repair by anyone other than Horizon Return of any goods by Purchaser must be approved in writing by Horizon before shipment Damage Limits HORIZON SHALL NOT BE LIABLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY 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 no
8. est button A successful installation will yield the following no holds no flashing red LED If any holds occur redo the test noting the orientation of the aircraft when the holds occur This will allow you to change and optimize the antenna position s to a better location Step 10 Short Test Flight Verification with Hold Indicator When the system tests successfully it s time for a short near test flight This first flight should be close in less than 200 feet and about five minutes or less After the flight land near yourself and check that no holds occurred A successful flight will result in 0 holds Extend the flight distance and times checking the Hold data after every flight until you are confident with the results IMPORTANT Y Harnesses and Servo Extensions When using Y harness or servo extensions it s important to use standard non amplified Y harnesses and servo extensions as they 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 an existing model to Spektrum be certain that all amplified Y harnesses and or servo extensions are replaced with conventional non amplified versions Preset Failsafe The AR6250 features preset failsafe only on throttle aileron and elevator channels Preset failsafe is ideal for sailplanes allowi
9. hat unknowingly depress the bind button and the system is then turned on losing the necessary information to allow the connection to take place We ve also had DX7 customers that didn t fully understand the range test process and pushed the bind button before turning on the transmitter also causing the system to lose its bind Warranty Period Exclusive Warranty Horizon Hobby Inc Horizon warranties that the Products purchased the Product will be free from defects in materials and workmanship for a period of 1 year from the date of purchase by the Purchaser Limited Warranty a This warranty is limited to the original Purchaser Purchaser and is not transferable REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER This warranty covers only those Products purchased from an authorized Horizon dealer Third party transactions are not covered by this warranty Proof of purchase is required for warranty claims Further Horizon reserves the right to change or modify this warranty without notice and disclaims all other warranties express or implied b Limitations HORIZON MAKES NO WARRANTY OR REPRESENTATION EXPRESS OR IMPLIED ABOUT NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCT THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER S INTENDED USE c Purchaser R
10. he power system be tested per the guidelines below Recommended Power System Test Guidelines If a questionable power system is being used e g a small or old battery that may not support high current draw etc it is recommended that a voltmeter be used to perform the following test Note The Spektrum Flight Log SPM9540 is the perfect tool to monitor voltage in the test below The Flight Log is not compatible with the AR6250 for recording flight data Plug the Flight Log 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 Note 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 Your AR6250 features QuickConnect with Brownout Detection e Should an interruption of powe
11. m your airplane Step 8 Rebinding the Receiver After you ve programmed your model it s important to rebind the system so the true failsafe control surface positions are set Step 9 Ground Range Testing and Verification Red LED Advanced Range Testing In airplanes that have significant carbon fiber construction it is imperative to first do an advanced ground range check This ground range check will confirm that the receiver is operating optimally and that the antennas are properly mounted in a position that will give positive RF coverage in all attitudes This advanced range check allows the RF performance of the receiver and the positions of each antenna to be verified and to optimize the locations of the antennas Advanced Range Test 1 Turn on the system Tx and Rx 2 Have a helper hold your aircraft while observing the red LED labeled with H located on the receiver 3 Standing 30 paces away from the model face the model with the transmitter in your normal flying position and put your transmitter into range test mode This Causes reduced power output from the transmitter 4 Have your helper position the model covering all orientations nose up nose down nose toward the Tx nose away from the Tx etc while watching the red LED noting any correlation between the aircraft s orientation and when holds occur Do this for one minute The timer on the transmitter can be used here 5 After one minute release the range t
12. nas should be mounted Note that full carbon aircraft requires externally mounted antennas while the 2 4GHz friendly fuselage can have the antennas mounted internally The goal is to mount the antennas in a location so that at least one will always be in the RF visual line of sight of the transmitter e g not blocked by carbon fiber structures in all attitudes This can easily be visualized by having a helper stand about 20 feet away and rotate the airplane in all attitudes confirming that in all positions there is a direct line between you and at least one receiver antenna that isn t blocked by carbon fiber structure Step 3 Installing the Receivers Install the receiver in the normal position recommended by the airplane s manufacturer Double sided tape or foam can be used to secure the main receiver in place Step 4 Mounting the Antennas To install the antennas drill a 1 16 inch hole in the desired antenna mounting position Slide the feeder antenna through the hole until the 31mm tip and about 2mm of coaxial completely exit the fuselage Using a drop of CA glue the antenna to the fuselage making sure that the 31mm active portion of the antenna tip is fully exposed Note If the antenna is to be mounted internally in the front of a 2 4GHz fuse the coaxial can be taped into position Be sure the 31mm tip is located at least 2 inches from any significant carbon structure Step 5 Plugging in the Servo Leads
13. ng the aircraft to automatically dethermalize if the signal is lost With preset failsafe the throttle aileron and elevator channels go to their preset failsafe positions if the signal is lost preventing a flyaway Receiver Power Only e When the receiver only is turned on no transmitter signal is present all channels have no output signal to avoid overdriving the servos and linkages Note Some analog servos may drift slightly during power up even though no signal is present This is normal After Connection e When the transmitter is turned on and after the receiver connects to the transmitter normal control of all channels occurs e After the system makes a connection if loss of signal occurs Preset Failsafe drives the throttle aileron and elevator servos to their preset failsafe position set during binding 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 e Receiver battery pack number of cells capacity cell type state of charge e The switch harness battery leads servo leads regulators etc e The BEC used in the speed controller won t support the current required by the Servos The AR6250 has a minimum operational voltage of 3 5 volts it is highly recommended t
14. nspected or repaired please call for a Return Merchandise Authorization RMA 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 A Service Repair Request is available at www horizonhobby com on the Support tab If you do not have internet access please include a letter with your complete name street address email address and phone number where you can be reached during business days your RMA number a list of the included items method of payment for any non warranty expenses and a brief summary of the problem Your original sales receipt must also be included for warranty consideration Be sure your name address and RMA number are clearly written on the outside of the shipping carton Warranty Inspection and Repairs To receive warranty service you must include your original sales receipt verifying the proof of purchase date Provided warranty conditions have been met your Product will be repaired or replaced free of charge Repair or replacement decisions are at the sole discretion of Horizon Hobby Non Warranty Repairs Should your repair not be covered by warranty the repair will be completed and payment will be required
15. of 3 5 to 9 6 volts With most systems this is not a problem as in fact most servos cease to operate at around 3 8 volts When using multiple high current draw servos with a single or inadequate battery power source heavy momentary loads can cause the voltage to dip below this 3 5 volt threshold thus causing the entire system Servos and receiver to brown out When the voltage drops below the low voltage threshold 3 5 volts the DSM receiver must reboot go through the Startup process of scanning the band and finding the transmitter and this can take several seconds Please read the receiver power requirement section as this explains how to test for and prevent this occurrence 4 Q Sometimes my receiver loses its bind and won t connect requiring rebinding What happens if the bind is lost in flight A The receiver will never lose its bind unless it s instructed to It s important to understand that during the binding process the receiver not only learns the GUID code of the transmitter but the transmitter learns and stores the type of receiver that it s bound to If the transmitter is placed into bind mode the transmitter looks for the binding protocol signal from a receiver If no signal is present the transmitter no longer has the correct information to connect to a specific receiver and in essence the transmitter has been unbound from the receiver We ve had several DX7 customers that use transmitter stands or trays t
16. ped to one of the following addresses Horizon Hobby UK Units 1 4 Ployters Rd Staple Tye Harlow Essex CM18 7NS United Kingdom Please call 44 0 1279 641 097 or email sales horizonhobby co uk with any questions or concerns regarding this product or warranty Horizon Technischer Service Hamburger Str 10 25335 Elmshorn Germany Please call 49 4121 46199 66 or email service horizonhobby de with any questions or concerns regarding this product or warranty FCC Information This device complies with part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Caution Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This product contains a radio transmitter with wireless technology which has been tested and found to be compliant with the applicable regulations governing a radio transmitter in the 2 400GHz to 2 4835GHz frequency range CE Compliance information for the European Union 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 collection point for the recycling of
17. r occur brownout the system will reconnect immediately when power is restored QuickConnect e The orange LED on the receiver will flash slowly indicating a power interruption brownout has occurred e 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 e 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 How QuickConnect With Brownout Detection Works e When the receiver voltage drops below 3 5 volts the system drops out ceases to operate e When power is restored the receiver immediately attempts to reconnect to the last two frequencies that it was connected to e f the two frequencies are present the transmitter was left on the system reconnects typically in about a fraction of a second QuickConnect with Brownout Detection is designed to allow you to fly safely 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 Note f a brownout occurs in flight it is vital that the cause of the brownout be determined and corrected ModelMatch some Spektrum and JR transmitters offer a feature called ModelMatch that prevents the possibility of operating a model using the wrong mod
18. sly stored GUID When it locates the specific GUID code it confirms the uncorrupted repeatable packet information the system connects and normal operation takes place Typically this takes 2 to 6 seconds 2 Q Sometimes the system takes longer to connect and sometimes it doesn t connect at all A In order for the system to connect after the receiver is bound the receiver must receive a large number of consecutive uninterrupted perfect packets from the transmitter This process is purposely critical of the environment ensuring that it s safe to fly when the system does connect If the transmitter is too close to the receiver less than 4 feet or if the transmitter is located near metal objects metal Tx case the bed of a truck the top of a metal work bench etc connection will take longer and in some cases connection will not occur as the system is receiving reflected 2 4GHz energy from itself and is interpreting this as unfriendly noise Moving the system away from metal objects or moving the transmitter away from the receiver and powering the system again will cause a connection to occur This only happens during the initial connection Once connected the system is locked in and should a loss of signal occur failsafe the system connects immediately when the signal is regained 3 Q I ve heard that the DSM system is less tolerant of low voltage Is this correct gt All DSM receivers have an operational voltage range
19. t prepared to accept the liability associated with the use of this Product you are advised to return this Product immediately in new and unused condition to the place of purchase Law These Terms are governed by Illinois law without regard to conflict of law principals Safety Precautions This is a sophisticated hobby Product and not a toy 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 The Product 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 injury Questions Assistance and Repairs Your local hobby store and or place of purchase cannot provide warranty support or repair Once assembly setup or use of the Product has been started you must contact 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 productsupport horizonhobby com or call 877 504 0233 toll free to speak to the Product Support department Inspection or Repairs If this Product needs to be i
20. waste electrical and electronic equipment The separate collection and recycling of your waste equipment at CE 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 Declaration of Conformity in accordance with ISO IEC 17050 1 No HH20090109 Product s Spektrum AR6250 Receiver Item Number s SPMAR6250 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 amp TTE directive 1999 5 EC EN 301 489 1 v 1 6 1 General EMC requirements for Radio equipment Signed for and on behalf of Horizon Hobby Inc EN 301 489 17 v 1 2 1 Pe pan L E Champaign IL USA l Jan 9 2009 Steven A Hall Vice President International Operations and Risk Management Horizon Hobby Inc 2009 Horizon Hobby Inc US Patent Number 7 391 320 Other patents pending DSM and DSM2 are trademarks or registered trademarks of Horizon Hobby Inc The Spektrum trademark is used with permission of Bachmann Industries Inc Spektrum radios and accessories are exclusively available from Horizon Hobby Inc Printed 1 09 14988
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