AAOAWS1475R900MHz Wireless Speaker

Please read this user’s guide before installing, setting up, or using your new product. AWS-1475 900MHz Wireless Indoor /Outdoor Mnon Speaker Thank you for purchasing your Accurian 900MHz Wireless Indoor/Outdoor Mono Speaker. speaker transmitter 12V DC adaptor 9V DC adaptor RCA cable 3.5mm plug adaptor 6.3mm plug adaptor user’s guide what’s included Connect the 9V DC adaptor to the transmitter’s DC jack, then plug the other end into a standard AC outlet. powering the transmitter Each transmitter has three channels, select the desired channel to match the receiver’s channel. Make sure that the transmitter’s channel is the same as the receiver’s channel. setting the channel FCC Information This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult your local RadioShack store or an experienced radio/TV technician for help. If you cannot eliminate the interference, the FCC requires that you stop using your speaker. Changes or modifications not expressly approved by RadioShack may cause interference and void the user’s authority to operate the equipment. 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. speaker transmitter G -VOLUME Rotate in the direction of the arrow until it clicks to turn on the speaker. The green led lights. Then adjust it to a comfortable listening level. To turn off, rotate it clockwise until it clicks. BASS To increase or decrease bass notes. Transmitter Carrier Frequency ................................................................................915.6 - 918.4 MHz Power Source ........................................................................................................................... Unregulated 9V DC, Center Tip set to positive (+), 250mA Modulation Method ................................................................................FM Modulation Frequency Response .................................................................... 80 Hz – 20 kHz (6 dB) Measurement (WHD) ................................................................4½ x 2½ x 41/8 Inches Speaker Power Source .............................................................................................................12V DC Sensitivity .....................................................................................< 2μV (with 20 dB S/N) S/N Radio (@-50 dBm) ..........................................................................70 dB (A weight) Audio Distortion ............................................................................................................ <2% Max. Audio output ..................................................................................................... >=5W Measurement (WHD) ................................................................. 82/3 x 11 x 8¼ Inches Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. Actual product may vary from the product images in this document. specifications NOTE channel 39V DC adaptor DC 9V jack Caution: Do not attempt to recharge alkaline batteries or regular batteries. Warning: Do no try to recharge the non-rechargeable batteries, or the batteries would explode! The speakers’ DC 12V jack is for charging rechargeable batteries and powering the speaker. 1. Turn off the speaker. 2. Remove the battery cover. 3. Slide ON/OFF inside the battery compartment to ON. 4. Insert eight C rechargeable batteries in the battery compartment, matching the polarity symbols (+ and -) marked inside. 5. Connect one end of the 12V DC adaptor to the DC 12V jack and plug the other end to a standard AC outlet. 6. When charging is completed, unplug the DC adaptor from the power source, and disconnect it form the speaker’s DC jack. recharging Ni-Cd or Ni-MH batteries transmitterspeaker You can connect your audio source (such as MP3, CD and DVD) to the transmitter with the supplied RCA cable. 1. Connect the RCA cable’s color jacks to your transmitter by matching the color. 2. Plug the other ends into your audio source’s output jacks. If the output jack of your audio source is 3.5mm or 6.3mm, connect the RCA cable to the 3.5mm plug adaptor or/and 6.3mm plug adapter for the connection. connecting to y0ur audio source You can power the speaker with the 12V DC adaptor. To power the speaker with AC power, connect one end of the 12V DC adapter to the receiver, then plug the other end into a standard AC outlet. The green led on the transmitter turns on when its built- in Automatic Level Detection circuit detects the music or signal from the audio source. When the audio source stops for more than 30 seconds, the transmitter will automatically shut down and enter the standby mode. powering the speaker with AC power 1. Lift up the battery cover on the bottom of the speaker. 2. If the batteries are non-recharg…

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Block Diagram for 40-1475 900MHz I ndoor/Outdoor Mono Speaker (receiver) Addy 10/24/05 TES revision B LNA LNA A ntenna 915MHz SAW VCO BP Filter PLL BP Filter Crystal4MHz 139MHz SAW TA31161 Expander Bass Booster Volume Control 10.7MHzCeramicFilter BP Filter A MP Speake r RSSI detect MCU uPD64A-759 Regulator, Charger & Battery detect Resonator 4MHz 3 p ins 2 p ins Code Selector:S0 & S1short tog round for receive r Crystal 62.95MHz x 2 3 p ins 1 p in 779MHz to781.8MHz S1T8825B01 KA358 IC1-A GL6552 Q8 KA358 IC1-BQ2-Q7 DC Socket Battery 5V 12V 12 Channel Selecto r 3 3.6V

INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (External) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (External) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (External) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (External)

Size: 80x 28mm ART NO. REV ECN NO. MODLE ZONE DESCRIPTION DRAFTDATE A PART NO. DWG. NO. PART NAME DEST APPROVED CHECKED DRAFT PLS RETURN IMMEDIATELY AFT FILMED SCALE 40-1475 U.S.A Rating Label-RX Merry 1:1 generated label A/W Merry DATE 10/13/05 TANDY RADIOSHACK LIMITED A Division of RadioShack Corporation 10/13/05 Rating label Date Code label Rating label L01475P03A 900MHz Wireless Indoor/Outdoor Mono Speaker Model No. AWS-1475 Manufactured in China for Innovation One, Inc., 350 N. Henderson St., Ft. Worth, TX 76102 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. Power: 12V DC, 850mA, Plug Type "M” FCC ID: AAOAWS1475R TM 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E 1 . 5 V C S I Z E AL1280AAA1 F10624A

INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal) INTERTEK TESTING SERVICE Report No.: 0521833 FCC ID: AAOAWS1475R Equipment Photographs Model : AWS-1475 (Internal)

Circuit Description of 40-1475 900MHz Wireless Indoor/Outdoor Mono Speaker Issued by: Addy 09/26/05Revision APage 1 of 10 RECEIVER SECTION RF Low Noise Amplifier The LNA is constructed with two stages of amplifiers (Q309 and Q310) and filter F303 for high rejection ratio of alternate channel and spurious. They are matching with the LC networks. The signal received from the antenna is fed to the LNA. Then, the LNA amplifies and filters out the desired signal and delivers it to the mixer. Local Oscillator The first local oscillation frequency is derived from a single 4MHz crystal by means of a phase locked loop (U303). The transmitter frequency is from 915.6MHz (channel 1) to 918.4MHz (channel 3). The first IF is at 136.6MHz with LO operates from 779.0MHz to 781.8MHz. The local oscillator is mainly formed with Q305, Q306, VD301, L304 and U303. The second local oscillator is formed with a 62.95MHz crystal and a transistor Q302. Mixer The mixer is constructed with a single transistor (Q311). After the received signal has amplified from the LNA, it is injected to the base of transistor Q311. The local oscillation frequency from the local oscillator is fed to the base of Q311. The received signal and local oscillation frequency are heterodyned at Q311 to produce a 136.6MHz intermediate frequency (IF) signal for the second mixer. The second mixer is built in the integrate circuit U302. The first IF is fed through the filter F312 and inject to pin 16 of U302. The second local oscillation frequency is fed to the U302 at pin 2. They are heterodyned to produce the second IF of 10.7MHz. IF Filter/Limiter and Detector F301, F302 and Q307 filter out the 10.7MHz IF signal to U302. U302 performs the IF Limiter and FM quadrature detector as well. The detector’s center frequency is determined by adjusting L334. The audio is recovered from pin 14 and RF signal level out (RSSI) is at pin 10. Audio Amplifier and Expander The recovered audio from U302 is amplified by a transistor (Q1) and expanded by the expander (U2) to improve the Signal-to-Noise ratio. C21 and R4 form the de-emphasis network. The output level of the expander can be trimmed by means of adjusting VR1. RSSI and Mute Circuit The output of RF Signal Strength Indicator (RSSI) from U302 is fed to a comparator (IC1-A). The signal strength is proportional to the DC level develops at pin 10 of U302. If the DC level presented at pin 10 of U302 is higher then the preset level at pin 2 of IC1-A, pin 1 of IC1 goes high and turns on Q9 and Q203. The power amplifier (U3) is on. Otherwise, the power amplifier (U3) is off and the audio is muted. The desired mute level can be trimmed by means of adjusting VR202. Bass Booster Q8 and rotary potentiometer (VR100) are used to form an active tone control circuitry for the bass sound. The expanded audio is coupled to the control circuitry through a capacitor (C8). When the potentiometer is rotated counterclockwise, the circuitry can provide an additional gain of up to 12dB for the bass sound. Power/Battery Low Indicator The Power/Battery low indicator (LED D201) is controlled by MCU. When the power is on, it lights. The voltage detector is constructed with a comparator (IC1-B). When the battery is weak, the DC level presents at pin 6 is less than pin 5, pin 7 goes high. Once MCU detects high at pin 11, it flashes the LED. Charger The charger is constructed with a constant current source (Q2, Q3, Q5, Q6 and Q7). The charging current is governed by R2 & R11. As the audio is muted (pin 1 of IC1-A goes low) and the recharge ON/OFF switch is opened, the recharge starts.

Report No.: 0521833 Charging mode Ctrl No.: PAGE 1 Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 21 9k 30M EW0698 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A NA FCC ID: AAOAWS1475R Report No.: 0521833 Charging mode Ctrl No.: NA FCC ID: AAOAWS1475R Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: Frequency QP Level QP Limit MHz dBuV dBuV 0.15000 40.7 66.0 0.22000 37.8 62.9 0.29500 35.8 60.3 0.41000 34.2 57.7 0.57500 33.1 56.0 0.79000 29.8 56.0 Frequency AV Level AV Limit MHz dBuV dBuV no Results * limit Report No.: 0521833 Receiving mode (Channel 1) Ctrl No.: PAGE 1 Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 21 9k 30M EW0698 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A NA FCC ID: AAOAWS1475R Report No.: 0521833 Receiving mode (Channel 1) Ctrl No.: NA FCC ID: AAOAWS1475R Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: Frequency QP Level QP Limit MHz dBuV dBuV 0.15000 40.9 66.0 0.21500 38.4 63.0 0.29500 36.2 60.3 0.41000 34.8 57.7 0.57500 33.6 56.0 0.79500 29.9 56.0 Frequency AV Level AV Limit MHz dBuV dBuV no Results * limit Report No.: 0521833 Receiving mode (Channel 3) Ctrl No.: PAGE 1 Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 21 9k 30M EW0698 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A NA FCC ID: AAOAWS1475R Report No.: 0521833 Receiving mode (Channel 3) Ctrl No.: NA FCC ID: AAOAWS1475R Tested By:Hong, Report No.:0521833 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: Frequency QP Level QP Limit MHz dBuV dBuV 0.15000 41.3 66.0 0.22000 38.6 62.9 0.29500 36.7 60.3 0.42500 35.4 57.4 0.56500 34.3 56.0 0.79000 30.5 56.0 Frequency AV Level AV Limit MHz dBuV dBuV no Results * limit

• The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com RadioShack Corporation Application For Certification (FCC ID: AAOAWS1475R) Superheterodyne Receiver 0521833 LC/el December 14, 2005 INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2 : System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R ii MEASUREMENT / TECHNICAL REPORT RadioShack Corporation − MODEL: AWS-1475 FCC ID: AAOAWS1475R December 14, 2005 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Superheterodyne Receiver (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? Yes No X If no, assumed Part 15, Subpart B for unintentional radiator − the new 47 CFR [10-01-04 Edition] provision. Report prepared by: Alfred Lo Intertek Testing Services 2/F., Garment Center, 576 Castle Peak Road, Kowloon, Hong Kong. Phone: 852-2173-8545 Fax: 852-2371-0914 INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R iii Table of Contents 1.0 General Description ............................................................................................... 2 1.1 Product Description.......................................................................................... 2 1.2 Related Submittal(s) Grants ............................................................................ 2 1.3 Test Methodology ............................................................................................ 3 1.4 Test Facility ...................................................................................................... 3 2.0 System Test Configuration.................................................................................... 5 2.1 Justification ...................................................................................................... 5 2.2 EUT Exercising Software ................................................................................. 5 2.3 Special Accessories......................................................................................... 5 2.4 Equipment Modification ................................................................................... 6 2.5 Measurement Uncertainty................................................................................ 6 2.6 Support Equipment List and Description ......................................................... 6 3.0 Emission Results.................................................................................................... 8 3.1 Field Strength Calculation................................................................................ 9 3.2 Radiated Emission Configuration Photograph .............................................. 11 3.3 Radiated Emission Data ................................................................................ 12 3.4 Conducted Emission Configuration Photograph ........................................... 14 3.5 Conducted Emission Data ............................................................................. 15 4.0 Equipment Photographs...................................................................................... 17 5.0 Product Labelling................................................................................................. 19 6.0 Technical Specifications...................................................................................... 21 7.0 Instruction Manual ................................................................................................ 23 8.0 Miscellaneous Information .................................................................................. 25 8.1 Discussion of Pulse Desensitization .............................................................. 26 8.2 Calculation of Average Factor ....................................................................... 27 8.3 Emissions Test Procedures ........................................................................... 28 INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R iv List of attached file Exhibit Type File Description Filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission radiated photos.pdf Test Setup Photo Conducted Emission conducted photos.pdf Test Report Conducted Emission Test Result conducted.pdf External Photo External Photo external photos.pdf Internal Photo Internal Photo internal photos.pdf Block Diagram Block Diagram block.pdf Schematics Circuit Diagram circuit.pdf ID Label / Location Label Artwork and Location label.pdf User Manual User Manual manual.pdf INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: AAOAWS1475R 2 1.0 General Description 1.1 Product Description This Equipment Under Test (EUT) is an audio wireless speaker receiver for it corresponding transmitter. The main function of the EUT is used to receive the…

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INTERTEK TESTING SERVICE Report No:0521833 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : AWS-1475 Fig.1 FCC ID: AAOAWS1475R INTERTEK TESTING SERVICE Report No:0521833 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : AWS-1475 Fig.2 FCC ID: AAOAWS1475R

INTERTEK TESTING SERVICE Report No:0521833 FCC ID: AAOAWS1475R 1 Configuration Photographs Worst-Case Line-Conducted Emissions (Front View) Model : AWS-1475 INTERTEK TESTING SERVICE Report No:0521833 FCC ID: AAOAWS1475R 2 Configuration Photographs Worst-Case Line-Conducted Emissions (Back View) Model : AWS-1475 INTERTEK TESTING SERVICE Report No:0521833 FCC ID: AAOAWS1475R 3 Configuration Photographs Worst-Case Line-Conducted Emissions (Side View) Model : AWS-1475