Nady Systems ALD-800 User's Manual
Contents
1. at 510 652 2411 for a return authorization R A number Make sure the R A number is clearly marked on the outside of your package Please note if an R A number is not included our Shipping Department cannot accept your package 2 Send the unit back to Nady Systems 6701 Shellmound Street Emeryville CA 94608 freight pre paid You must include proof of date and place of purchase i e photocopy of your bill of sale or Nady cannot be responsible for repair or replacement Nady Systems Inc will not repair nor be held responsible for any units returned without proper identification return address and R A number clearly marked on the package 3 Per the above Nady will perform all warranty service and return the unit to you at no charge Nady Systems will inform the buyer if product sent in does not meet the terms of this warranty and will provide a quote for fixing the unit and or shipping it back exclusively at the buyer s expense 10 AD SYSTEMS INC 6701 Shellmound Street Emeryville CA USA 94608 T 510 652 2411 F 510 652 5075 www nady com2. If you have any questions contact Nady Customer Service 510 652 2411 or your Nady dealer Audio Input Gain Adjustment You can quickly adjust the transmitter to obtain optimum performance with the Input Gain control 8 The audio modulation indicator LED marked TX 6 will increase in brightness as the control is turned clockwise and decrease in brightness as the control is turned counterclock wise When the TX LED is flashing during transmission the transmitter is broadcasting properly If the LED stays off continuously or barely flashes at all the input gain needs to be increased If the LED stays on continuously and does not flash during modulation the input is overloading and needs to be decreased You will also need to test the transmitter in use with an ALD 800 receiver This procedure is easy to do and is explained in the receiver instructions which follow Confirming Correct Installation The transmitter s TX LED 6 will flash when a microphone or line level signal is broadcast by the transmitter If TX does not flash turn the audio input gain control clockwise This will increase audio level and cause TX to flash along with the program source When TX is flashing the transmitter is broadcasting properly Test the transmitter with an ALD 800 receiver This procedure is explained in the receiver instructions Note For the best performance and to minimize the possibility of inter
3. OWNER S MANUAL SYSTEMS INC ALD 800 Multi Channel RF Wireless Assistive Listening System Contents Imiroduct om a er ee 2 ALD SOOransmitter s a aaa On eee 3 CoNo Conmectiinstalano n ee See ee eee eee ee eee 4 AUD SOOIRECEIVE EO Pcia ing 5 AtehiteeissandiEngingeninges peca 1 SEE A 8 Service MOMO IO 9 A IO I AO OI O de in 10 Introduction Thank you for choosing the Nady ALD 800 wireless RF personal listening assistance system we know you will be very pleased with its performance and features The Nady ALD 800 is the most cost effective way to provide high quality listening assistance in compliance with the Americans with Disabilities Act ADA which requires public facilities such as movie theatres etc to make listening assistance systems available to their audiences The system is designed to be very easy to use and requires no installation The ALD 800 is specifically designed to be installed quickly and easily by virtually anyone In addition to its ease of use the ALD 800 provides outstanding sound quality The system consists of one wireless transmitter and one or more pre tuned portable wireless receivers The transmitter features eight factory switchable channels the receivers are single channel units that operate on one of eight channels in the 72 76 MHz band with wide band modulation for quality audio Unlike infrared listening systems the ALD 800 can be used outdoors and indoors in bright light without af
4. and lightweight e Preset to one of eight auditory assistance channels e Provides up to 130 dB SPL for hearing assistance e Volume control adjust e Antenna integral with earphone cord e Mini binaural EB 800 earbud earphones included e LED power on indicator e Accepts standard 9V alkaline battery Powering The Receiver Install a 9V battery in Battery Compartment 1 observing polarity To preserve battery life always turn the ALD 800 receiver off when it is not in use When the sound becomes weak or distorted replace the battery The number of hours of operation per battery is as follows carbon zinc type battery 10 12 hours alkaline battery recommended 17 20 hours Channel Selection Your receiver is pre tuned at the factory to the same channel as your transmitter Should you wish to have your transmitter channel changed as explained in the Transmitter Operating Instructions section of this manual you must also have your receiver s retuned as well Contact the Nady Customer Service Department for details Using the ALD 800 Earphones Plug the included earphones into the Earphone jack 2 on top of the receiver The earpads can be ordered separately and since they cost very little you may wish to dispose of them after use However the earpads can be replaced and reused after being washed in a mild detergent rinsed and air dried Operating the Receiver While wearing your earphones stand near t
5. connect the included power supply as explained below and the transmitter is ready to broadcast to any number of ALD 800 receivers operating on the same channel Powering the Transmitter Connect the AC adapter provided into the 9V DC jack 1 on the back panel of the transmitter Plug the other end into an AC wall socket Press Power switch 2 The Power On LED 3 will light Antenna Extend Antenna 4 fully and position 90 degrees from top of the transmitter Connecting Audio Input The Line In jack 5 on the rear panel lets you connect the ALD 800 to your mixing console This 1 4 mono phone jack accepts an unbalanced line level audio source at zero dBm nominal signal level If your mixer has XLR outputs only you will need an XLR to phone plug adapter available from most electronics stores and music equipment stores Using a Microphone The Mic jack 7 on the front panel allows wireless cueing of on stage performers IMPORTANT This mono phone jack is designed for an electret condenser microphone and 9V DC power is present at the input jack If you wish to use a conventional dynamic microphone at least 20 dB more gain is required and a preamp should be used If a preamp is used be sure to have a blocking capacitor 1 mfd between the preamp output and the E03 mic input If a dynamic mic is plugged into the mic input by mistake there should be no damage because the current is limited to 1 0 mA
6. e limitations and exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which may vary from state to state This warranty is subject to the following conditions 1 This system must have been purchased from an authorized Nady dealer and all warranty service must be performed by Nady s service department Any service not performed by Nady will automatically void this warranty 2 Items not covered physical damage resulting from improper handling of the unit in transit from the factory by the shipper Nady Systems is not responsible for such damage and all such claims must be made against the shipping company by the consignee defects caused by normal wear of the product expendable parts are typically connectors cables potentiometers switches and similar components damage or defects caused by abuse neglect accident failure to connect or operate the unit in any way that does not comply with applicable technical or safety regulations or improper repair excessive heat or humidity alteration or unreasonable use of the unit causing cracks broken cases housings or parts damage caused by leaking batteries finish or appearance items items damaged in shipment en route to Nady Systems Inc for repair The warranty is null and void if any Nady serial number has been removed or defaced How To Obtain Service 1 If factory service is required please contact our Service Department
7. elch defeated Squelches at 10 uV for min 50 dB S N ratio 8 10 uV 9V alkaline 17 20 hours w alkaline battery 3 35 H 2 75 W 75 D 8 5 x 6 5 x 2 25 cm 2 65 oz w out battery 73 g Specifications subject to change at any time without prior notice for purposes of product improvement Service Information In the U S If you are experiencing operational problems with your system please refer to Authorization R A Number and service quote if out of warra umber is clearly marked on the outside of the package tha he Support page at www nady com for assistance Should your wireless system require service please contact the Nady Service Department at 510 652 2411 to obtain a Return nty Make sure the R A you are returning If your unit is out of warranty please enclose a cashier s check or money order or pay by credit card per instructions by the Nady Service Department Ship your unit prepaid o Nady Systems Service Department 6701 Shellmound Street Emeryville CA 94608 Include a brief description of the problem you are experiencing For service of a unit under warranty please follow the instructions in the following section Outside the U S For service or warranty matters please contact the Nady distributor in your country through the dealer store from which you purchased Do not attempt to service this unit yourself as it can be dangerous and will also void the warranty his product One Year Li
8. enna shall be integral to the earphone earbud cord The receiver model number is ALD 800 Specifications OVERALL SYSTEM PERFORMANCE Frequency Response Signa to Noise Ratio Total Harmonic Distortion RF Carrier Frequencies Frequency Stability Modulation Operating Range ALD 800 TRANSMITTER Mic Input Line Input Power Output Controls Indicators Antenna Power Requirement Dimensions Weight ALD 800 RECEIVER Controls Audio Output Connectors Earphones Antenna Indicators Sensitivity Mute Threshold Power Requirement Battery Life Dimensions Weight 100 Hz 15KHz 3 dB 60 dB lt 0 5 Eight channels between 72 76 MHz Channel AA 72 1 BB 72 3 CC 72 5 DD 72 7 EE 72 9 FF 75 5 GG 75 7 HH 75 9 Better than 005 FM 75 KHz max Up to 300 feet line of sight Connector 1 4 phone jack mpedance low impedance unbalanced with 9V DC at 1 mA for condenser mic Connector 1 4 phone jack mpedance 100 K Q unbalanced 80 000 uV 3 meters Power on off audio input gain adjust Power On LED Audio Modulation LED Permanently mounted telescoping whip 9 VDC regulated 4200 mA AC ALD800 adapter provided 1 25 H 8 25 W 4 25 D 3 175 x 20 9 x 10 8 cm 18 2 oz 500 g Combination volume on off wheel 250 mW max into 16 ohms 3 5 mm mini jack for earphone output Mini binaural earbuds Integral with earphone cord LED power on indicator 2 HV for 12 dB Sinad with squ
9. fecting performance The ALD 800 is perfect for virtually any application from a small meeting room or a mid sized house of worship to a large cinema The ALD 800 provides high quality hearing assistance to any number of audience members without seating restrictions The ALD 800 system has a wireless operating range of 300 feet The transmitter connects to the line out or tape out from a venue s existing sound system and broadcasts the audio as an FM radio signal The transmitter can also be used with an optional microphone Audience members who desire listening assistance use a pocket size Nady ALD 800 receiver with adjustable volume control and ergonomic high performance earphones The ALD 800 system is expandable one transmitter will provide audio to a limitless number of receivers 2 ALD 800 Transmitter Compact RF transmitter operating within the 72 76 MHz band designated for auditory assistance frequencies by the FCC e Eight factory switchable channels e Input for line level audio e Input for microphone e Audio input gain control e Automatic level control e Extendible antenna AC ALD800 9VDC regulated power supply adapter supplied e LED power on and audio modulation indicators Setting Up the Transmitter Your Nady ALD 800 requires minimum installation Simply place the transmitter on any flat surface connect your mixing board to the transmitter s back panel input See Connecting Audio Input below
10. ference from another source we suggest you experiment to find the minimal height the antenna must be extended in order to perform well in your particular environment Channel Selection Channel selection is controlled by DIP switches inside the transmitter The system is preset at the factory Changing the channel can be done quickly by any qualified service technician Contact your dealer or the Nady Customer Service Department for details Using More Than One ALD 800 System You may operate up to three ALD 800 systems in the same location For multiple system operation please observe e lf operating two ALD 800 transmitters in the same location use Ch AA and HH or GG e If operating three ALD 800 transmitters in the same location use Ch AA EE and HH or GG Locate the transmitters ten feet or more away from the performers wearing ALD 800 receivers ALD 800 Transmitter Front Panel MICROPHONE INPUT O eL Eoo TX POWER ALD 800 Transmitter Rear Panel Max Input Gain Adjust Line In NADY SYSTEMS Emeryville CA FCC ID BEK9E3ALDT Made in China Caution Use Only Supplied Adaptor DC 10V 150 mA ALD 800 Receiver Operating Instructions Pocket sized RF receiver for personal listening assistance e Any number of ALD 800 receivers can be used with a single ALD 800T transmitter e Ultra compact
11. he ALD 800 transmitter Turn the receiver on by rotating the Off On Volume wheel 3 The Power On indicator 4 will go on To turn the receiver off rotate the Off On Volume wheel until it clicks and the Power On indicator will go out Listen for your program source and adjust receiver volume to a comfortable listening level Note A slight buzzing may be heard if the receiver is used within six feet of the transmitter This is normal and does not affect performance For best performance keep the receiver and the transmitter at least ten feet apart Adjusting Earphones Volume Listen for your program source and adjust receiver volume to a comfortable listening level Note A slight hum may be heard if the receiver is used within six feet of the transmitter This is normal and does not affect performance Testing Receiver Range Wearing your receiver and earphones walk around your seating area and listen for audio quality In certain areas of the room the audio may disappear or drop out This is a normal occurrence whenever radio signals are transmitted inside a building If you step away from the drop out zone the audio will return ALD 800 Receiver Front Panel ALD 800 Receiver Top Panel NADY 444 500 Power On _ OFF ON VOL Earphone Architects and Engineering Specifications ALD 800 Transmitter The transmitter operates on the 72 76 MHz auditory assistance frequencies T
12. mited Warranty Nady Systems Inc warrants to the original consumer purchaser U S A only that the unit is free from any defects in material or workmanship for a period of one year from the date of original retail purchase If any such defect is discovered within the warranty period Nady Systems Inc will repair or replace the unit free of charge subject to verification of the defect or malfunction upon return to Nady Systems Please do not return your Nady product to the store where it was purchased as Nady Systems handles your warranty service directly Communication with our Service Department is the most efficient means of servicing your unit and we are dedicated to keeping you a satisfied customer To the extent permitted by law any applicable implied warranties including warranties of merchantability and fitness are hereby limited to one year from the date of purchase Consequential or incidenta damages resulting from a breach of any applicable express or implied warranties are hereby excluded This warranty is in lieu of all other agreements and warranties general or special express or implied and no representative or person including a Nady dealer agent or employee is authorized to assume for us any other liability in connection with the sale or use of this Nady Systems product Whereas some states do not allow limitations on how long implied warranties last and do not allow exclusion of incidental or consequential damages the abov
13. ransmitted field strength shall not exceed 8000 uV m at 30 meters The operating frequency is factory selectable to eight different channels by means of an internal switch Maximum FM deviation should not exceed 75 KHz Transmitter signal pre emphasis is 75 uS Frequency stability is controlled by a phase locked loop synthesizer with crystal reference and accurate within 005 over 0 50 degrees C The transmitter provides a permanently mounted telescoping whip antenna The FCC approved transmitter is powered by a UL and CSA listed AC wall transformer providing 9V DC input to the transmitter via a 3 5mm DC jack The transmitter includes a 1 4 line in jack mounted on the rear panel and 1 4 electret condenser microphone jack with 9V DC power at 1 0 mA mounted on the front panel Also included is an adjustable audio level control and a red LED Power On indicator The model number is ALD 800 ALD 800 Receiver The receiver operates on a single frequency in the 72 76 MHz auditory assistance band Frequency stability is controlled by a phase locked loop synthesizer with crystal reference and accurate within 005 over 0 50 degrees C The receiver de emphasis is 75 uS The receiver provides a 3 5 mm headphone output jack mounted on the top panel The receiver is powered by a 9V alkaline battery The receiver has an Off On Volume control mounted on the top panel LED lamp to indicate battery strength and an ant
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