Nady Systems ALD-800 manual

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Table of contents for the manual

  • Page 1

    ALD-800 OWNER’S MANUAL Multi-Channel RF Wireless Assistive Listening System[...]

  • Page 2

    Contents 2 Introduction ............................................................................................................................. 2 ALD-800 T ransmitter ............................................................................................................... 3 Confirming Correct Installation ..............................[...]

  • Page 3

    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 level a udio • Input for microphone • Audio input gain control • Automatic level control • Extendible antenna • AC-ALD800 9 VDC[...]

  • Page 4

    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. When “ TX” is flash i[...]

  • Page 5

    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 compact and lightweight • Preset to o ne of eight auditory • assistance channels Provides up to 130 dB SPL for • hearing assistance V olu[...]

  • Page 6

    6 ALD-800 Receiver (Front Panel) ALD-800 Receiver (T op Panel) 2 1 4 3[...]

  • Page 7

    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. Maximum F[...]

  • Page 8

    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 , FF:75 .5, GG: 75.7, H H: 75.9 Frequency Stability Better than .005% Modulation FM ± [...]

  • Page 9

    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. Should y our wireles s system re quire service, pl ease contac t the Nady Service Dep artment at (510) 652-2 411 to obta in a Return Authorizati on (R/A) Nu mber and se rvice quote (if[...]

  • Page 10

    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. will repair or replace the unit f[...]

  • Page 11

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  • Page 12

    6701 Shellmound Street | Emeryville, CA USA 94608 T 510.652.2411 | F 510.652.5075 | www .nady .com[...]