PEQ809090803433MHz RF Receiver Alarm Clock

Feature z Calendar with day of the week display from January 1, 2003 to December 31, 2069 z Hour and minute display z 12 or 24-hour format z Indoor temperature and remote temperature z Centigrade or Fahrenheit readout z Battery life : approximate 1 year with alkaline batteries ( not included ) z Clock operating temperature from 0°Cto 50°C ( 32°F to 122°F ) z Indoor, Outdoor Temperature measuring range from -20°C to 60°C (-4°F to 140°F )* z Temperature resolution 0.1°C *If using the wireless transmitter with temperature below 32°F or above 122°F, user are recommended to use Lithium battery to enhance batteries life Location of Controls Getting Start Batteries Installation Batteries installation of the clock z Insert 2 “AA” batteries in polarity (+) and (-) as indicated z Close the battery cover z The low battery icon will show in the clock window when your batteries need replacing Batteries installation of wireless transmitter z Insert new batteries into clock z Insert 2 “AA” size batteries in proper polarity (+) and (-) as indicated z Close the battery door Warning : Do not mix old and new batteries Do not mix alkaline, standard ( carbon-zinc ), or rechargeable ( nickel cadmium ) batteries. To ensure proper functioning of your clock with outdoor temperature, please follow this power up procedure : 1. Insert new batteries into the main unit. 2. Insert batteries into the remote temperature transmitter. Do not touch any other buttons or settings on your clock. It will automatically receive the remote temperature. Remote Temperature Upon power up of the transmitter ( or pressing the reset button ), the temperature RF signal is immediately sent to the clock. The clock attempts to receive the RF temperature signal for 5 minutes. The clock refreshes the RF temperature every 3 minutes. If the RF temperature signal is not received within 5 minutes after power up of the transmitter (or pressing the reset button), blank “---“ will appear in the outdoor temperature window of the clock. In this case, press the HR/SYNC button of the clock. The clock will attempt outdoor temperature reception for another 6 minutes. After the remote temperature shows in the lower LCD panel place the remote transmitter outside in a shaded, dry area to protect it as if under an umbrella. Try relocating the clock or the transmitter if the clock does not display the outdoor temperature after 6 minutes. The RF Temperature signal indicator in the clock’s outdoor temperature window will show the following: Interference Signals from other household devices, such as entry controls, door bells and home security systems, may temporarily interfere with the clock and cause reception failure. This is normal and does not affect the general performance of the product. The transmission and reception of temperature reading will resume once the interference has stopped. Setting the Clock 1. Slide the LOCK/ALM/TIME/CAL switch to TIME and the time will flash on the display. Press the HR/SYNC and MIN/CLEAR buttons until you reach the desired time. 2. Slide the switch to CAL and the year and date will flash on the display. Press the YEAR, MONTH and DATE buttons until you reach the desired calendar setting. 3. Slide the switch to LOCK position. 4. Press the 12HR/24HR button to choose the desired display format. “AM” and “PM” display only in the 12HR format. 5. Press °C /°F button to choose the Centigrade or Fahrenheit scale. Both the indoor and outdoor temperature will display in the chosen scale. Setting the Alarm 1. Slide the LOCK/ALM/TIME/CAL switch to ALM position. The alarm time blinks. 2. To set the alarm time, press the HR/SYNC and MIN/CLEAE buttons until the desired alarm time appear on the display. 3. Slide the switch to LOCK position. To Activate the ascending alarm 1. Slide the SNZ/ON/OFF ALM switch to ON position, the sign will appear on the time display . The alarm function is activated. 2. When the alarm sounds, press the snooze/light bar. The alarm will sound the same time the next day. 3. To deactivate the alarm function, slide the SNZ/ON/OFF ALM switch to OFF position. To Activate the snooze alarm 1. Slide the SNZ/ON/OFF ALM switch to SNZ position. The sign and will appear on the time display. 2. When the alarm sounds, press the snooze/light bar. The alarm will sound again in approximately 5 minutes. You may repeat this function for 10 minutes. 3. To deactivate the snooze alarm slide the SNZ/ON/OFF ALM switch to the OFF position. Temperature Max / Min The maximum and minimum recorded temperature of the clock and OUTDOOR unit will be automatically stored in the memory. Press the Temp Max/Min button once to display the temperature maximum and minimum record on clock side. Press the button again to show the OUTDOOR maximum and minimum record. The respective indicators, IN and REMOTE will be displayed. To clear the memory, press CLEAR when the maximum and minimum record are shown, it will clear the record of the shown reading. Losing Synchronization of the wireless thermometer: If the clock displayed a proper outdoor temperature in the past but now displays blank “--“, the wireless transmitter and clock may have lost synchronization. If this occurs, press the HR/RE-SYNC button of the clock. The clock will attempt outdoor temperature reception for another 6 minutes and reinitiate synchronization with the wireless transmitter. If the remote temperature cannot be received, check: 1. The distance of the clock or wireless transmitter should be at least 3-4 feet away from any interfering sources such as computer monitors or TV sets. 2. Avoid placing the receiver onto or in the immediate proximity of metal window frames. 3. Using other electrical products such as headphones or speakers operating on the same signal frequency (433MHz) may prevent correct signal transmission and reception. 4. Neighbors using electrical devices operation on the 433MHz signal frequency can also cause interference. Note: When the 433MHz signals is received cor…

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Block Diagram of 8090/1 ( Rx ) Power control Frequency System Frequency System Frequency 433.92MHz(i) L.O. : 433.12MHz(ii) 32.768kHz(iii) Raw Data (i) The frequency is the frequency that the antenna received (ii) The L.O. is 433.12MHz (iii) The frequency is the clock of the MCU for normal operation (iv) The frequency is the frequency that the antenna received LCD MCU IC : TM8706 RF circuit IC : RX3310A Key Matrix EL back light for 8090 LED back light for 8091 Alarm Circuit Page 1August 2000 RX3310A UHF ASK Receiver A d v a n c e I n f o r m a t i o n HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information contained in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility for the use of any circuits shown in this datasheet. Description The RX3310A is a fully integrated, amplitude-shift-keying (ASK) modulation, single chip receiver. It is designed to operate in a variety of low power radio applications. All popular radio frequencies from 250 MHz to 450 MHz may be supported by simply choosing the appropriate external components. Particular emphasis has been placed on low current con- sumption. Average current consumption is 2.6 mA in normal operation mode and 25
A in power down mode under VCC=3.0volts. Features ‹ Wide frequency range: 250 MHz to 450 MHz ‹ High sensitivity ‹ Low power consumption ‹ Automotive temperature range ‹ High integration level requiring few and inexpensive external components ‹ SOP 18L package or SSOP 20L package Applications ‹ Remote control systems ‹ Car alarm and other security systems ‹ Baby finder, wireless doorbell, wireless toys Block Diagram the wireless IC company RF AMP MIXER OSC IF FILTER COMPARATOR IF AMP BUFFER LIMITER BANDGAP REFERENCE FOOSC1OSC2 CPA CPBCPO VSSDATADISABLE VCCVEEVIRF VCCLINCPC LFB VORF MIXIN

Test Setup FCCID : PEQ809090803 External Photo -front External Photo - rear

FCCID : PEQ809090803 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 . 38mm 10mm

Test Setup FCC ID : PEQ809090803 (model :8090) Internal Photo – 1 Internal Photo - 2 Test Setup FCC ID : PEQ809090803 (model :8090) Internal Photo – 3 Internal Photo – 4 Test Setup FCC ID : PEQ809090803 (model :8090) Internal Photo – 5 Internal Photo – 6 Test Setup FCC ID : PEQ809090803 (model :8090) Internal Photo – 7 Test Setup FCC ID : PEQ809090803 (model :8091) Internal Photo – 1 Internal Photo – 2 Test Setup FCC ID : PEQ809090803 (model :8091) Internal Photo – 3 Internal Photo – 4 Test Setup FCC ID : PEQ809090803 (model :8091) Internal Photo – 5 Internal Photo – 6 Test Setup FCC ID : PEQ809090803 (model :8091) Internal Photo – 7

Technical Description of the Circuit: The product can divide into two part, RF and Baseband, the RF circuit is a single conversion, super-heterodyne architecture receiver IC. The incoming RF signal received by the antenna is fed to the RF input terminal of the IC RX3310A, then the RF signal is then amplified by the LNA in the IC RX3310A. The amplified signal will fed to the mixer input, the LO for the mixer is generated by the external LC tank circuit, in the above circuit, the LO is 432.12MHz, the IF ( F RF -F LO ) is then demodulated by the demodulator in the IC RX3310A and the IC RX 3310A provide the raw data. The data is then fed to the baseband MCU TM8706 for decoding and the MCU TM8706 will display the decoded temperature at the LCD. Also the MCU equipped a time keeping clock for time and date function as well as alarm function.

699e.sch-3 - Fri Jul 11 09:06:24 2003 8090T20.sch-1 - Tue Aug 12 10:53:04 2003 8091T20.sch-1 - Tue Aug 12 10:51:44 2003

• 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) 2371 0521 Website: www.hk.intertek-etlsemko.com Electronics Tomorrow Ltd. Application For Certification (FCC ID: PEQ809090803) Superheterodyne Receiver 0314290 DL/ Sandy September 26, 2003 INTERTEK TESTING SERVICES FCC ID: PEQ809090803 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: PEQ809090803 ii MEASUREMENT/TECHNICAL REPORT Electronics Tomorrow Ltd. - MODEL: Electronics Tomorrow Ltd 8090 Electronics Tomorrow Ltd 8091 FCC ID: PEQ809090803 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 [08-20-02 Edition] provision. Report prepared by: Derek Leung Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576, Castle Peak Road, Kowloon, Hong Kong. Phone: 852-2173-8504 Fax: 852-2371-0521 INTERTEK TESTING SERVICES FCC ID: PEQ809090803 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 .................................................. 10 3.3 Radiated Emission Data .................................................................................. 11 4.0 Equipment Photographs ................................................................................... 15 5.0 Product Labelling.............................................................................................. 17 6.0 Technical Specifications ................................................................................... 19 7.0 Instruction Manual............................................................................................ 21 8.0 Miscellaneous Information ............................................................................... 23 8.1 Discussion of Pulse Desensitization ................................................................. 24 8.2 Calculation of Average Factor .......................................................................... 25 8.3 Emissions Test Procedures ............................................................................. 26 INTERTEK TESTING SERVICES FCC ID: PEQ809090803 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.doc External Photo External Photo external photos.doc Internal Photo Internal Photo internal photos.doc 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: PEQ809090803 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: PEQ809090803 2 1.0 General Description 1.1 Product Description The Equipment Under Test (EUT) is a RF Receiver Clock operating at 433.92MHz. The EUT is powered by 3.0V d.c. (2 x 1.5V “AA” size alkaline batteries). Once batteries are placed in the EUT, it will start to receive the temperature signal for 5 minutes from the remote sensor. Upon successful reception, the remote unit temperature will be displayed on the EUT. The EUT will automatically…

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Test Setup FCC ID : PEQ809090803 Radiated -front Radiated - rear Test Setup FCC ID : PEQ809090803 Radiated – front Radiated – rear