Instruction/ maintenance manual of the product ALD-800 Nady Systems
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ALD-800 OWNER’S MANUAL Multi-Channel RF Wireless Assistive Listening System.
Contents 2 Introduction ............................................................................................................................. 2 ALD-800 T ransmitter ..............................................................................
ALD-800 T ransmitter Compact RF transmitter operating within the 72-76 M Hz band des ignated for auditory assistance frequencies by the FCC. Eight factory switchable channels • Input for l ine le.
4 Confirming Correct Installation The transmitter’ s TX LED (6) will flash when a microphone or line level signal is broadcast b y the trans mitter . If “TX” does not flash, t urn the aud io input ga in control clockwise. This will increase audio level and cause “ TX” to flash along with the program sou rce.
ALD-800 Receiver Operating Instructions 5 Pocket-size d RF receiv er for pers onal listening assistance. Any number of ALD-800 receivers c an be • used with a single ALD-800T transmitter Ultra co.
6 ALD-800 Receiver (Front Panel) ALD-800 Receiver (T op Panel) 2 1 4 3.
7 Architects and Engineering Specifications ALD-800 T ransmitter The transmitter operates on the 72-76 MHz audi tory as sist ance fr eque ncie s. T ransmit ted field str eng th s hall no t ex ceed 80 00 µ V/m at 3 0 me ter s. T he o per atin g fr equ ency is factory selectable to eight different channels by means of an internal switch.
Specifications OVERALL SYSTEM PERFORMANCE Frequency Response 100 Hz-15KHz ± 3 dB Signa-to-Noise Ratio 60 dB T otal Harmonic Distortion < 0.5% RF Carrier Frequencies Eight channels between 72-76 MHz Channel AA:72.1 , BB: 72 .3, CC: 72.5, D D: 72.7 , EE: 72.
9 Service Information In the U.S. If you are experiencing operational problems with your system, please refer to the Support page at ww w .nady .com for assistanc e.
One-Y ear Limited 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.
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6701 Shellmound Street | Emeryville, CA USA 94608 T 510.652.2411 | F 510.652.5075 | www .nady .com.
An important point after buying a device Nady Systems ALD-800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Nady Systems ALD-800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Nady Systems ALD-800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Nady Systems ALD-800 you will learn all the available features of the product, as well as information on its operation. The information that you get Nady Systems ALD-800 will certainly help you make a decision on the purchase.
If you already are a holder of Nady Systems ALD-800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Nady Systems ALD-800.
However, one of the most important roles played by the user manual is to help in solving problems with Nady Systems ALD-800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Nady Systems ALD-800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center