O77-WTX-SERIESWTX-3500

EXHIBIT C – Installation Instructions FCC ID O77-WTX-SERIES INSTALLATION INSTRUCTIONS DIGITAL TRANSMITTER MODEL WTX 3500 Congratulations! You have just purchased a WTX 3500 Digital Transmitter, which we believe to be the finest product of its kind on the market. With a little care this transmitter should provide you with many years of excellent service. Please take a moment to read the following instructions. TRANSMITTER INSTALLATION The transmitter is completely self-contained, including battery, and is operated while mounted in the car. It is supplied with a clip for attaching to the sun visor, if desired. TRANSMITTER BATTERY REPLACEMENT Replace the battery – 9 volt NEDA 1604(Eveready 216 or equivalent). The battery in the transmitter can be checked or changed by removing the battery access door on the back of the transmitter. Sliding the door down towards the bottom of the transmitter can open the door, this will expose the battery compartment. TO REPLACE OR ADD A SET A replacement or new transmitter or receiver may be purchased by specifying the Model Number designated on the identification label. The RF frequency is set at the factory and must not be adjusted in the field. OPERATIONAL CHECK To check operation, move back a reasonable distance (about 50 feet) and press the transmitter button. Operation should be reliable at this distance but environment and location of both the transmitter and receiver will affect the range. If the transmitter is stowed well out of sight, it may be necessary to remove it from its mounting and hold near the windshield. Try different locations and positions. If operation is still unsatisfactory, the problem may be isolated by: 1. Checking the door operator. If the door will not open when the wall button is pressed, the problem is likely to be the operator. If the door will open by pressing the wall button, but not when the transmitter button or buttons are pressed, the problem is probably in the transmitter. 2. Replacing the transmitter battery. If after performing the above operational checks, the controls still do not function, they should be returned to your dealer for repair or replacement. CAUTION: Any changes or modifications in intentional or unintentional radiators which are not expressly approved by AMERICAN DIGITAL TECHNOLOGIES could void the user’s authority to operate this equipment. This applies to intentional and unintentional radiators certified per part 15 of the FCC rules and regulations.

EXHIBIT K – Frequency Block Diagram FCC ID O77-WTX-SERIES FREQUENCY BLOCK DIAGRAM SAWR 303.825 Mhz RF AMP Data

EXHIBIT A – Agent Authorization Letter FCC ID O77-WTX-SERIES

NORTHWEST EMC, INC. 22975 NW Evergreen Parkway, Suite 400 Hillsboro, OR 97124 September 15, 2000 Dear Application Examiner: On behalf of American Digital Technologies, Northwest EMC, Inc is submitting this application for the certification of American Digital Technologies’ Model WTX 3500, a 303.825 MHz transmitter seeking authorization under 47 CFR 15.231. It utilizes a manual switch to remotely activate garage doors and security gates. Upon manual activation, the EUT transmits a control signal using OOK modulation. Typical of other similar devices such as garage door openers, etc., the EUT is housed in a small plastic enclosure with a metal visor clip. It utilizes only one loop antenna that is permanently attached inside the enclosure. The EUT is battery operated with no provisions for connection to the AC power line. There is no battery recharging circuitry or provisions made for recharging the batteries. Therefore, per 15.207(d), no conducted measurements were required. The EUT contains the RF transmitter and activation switch only, there is no digital electronics or provisions for interfacing with any other devices. Therefore, it is not subject to any other FCC authorizations such as verification or DoC. The receiver that is to be used with this transmitter is currently in the final design stages and will be tested for compliance and authorized under a DoC. To facilitate the review process, an index of exhibits has been provided (see file “Index of exhibits.pdf”). Your efforts in reviewing this application are greatly appreciated. Best regards, Greg Kiemel Northwest EMC, Inc.

EXHIBIT L – External Photos FCC ID O77-WTX-SERIES

EXHIBIT D – FCC ID Label FCC ID O77-WTX-SERIES

EXHIBIT M –Internal Photos FCC ID O77-WTX-SERIES Loop Antenna

EXHIBIT J – Transmitter Functional Breakdown FCC ID O77-WTX-SERIES TRANSMITTER FUNCTIONAL BREAKDOWN The battery provides 9 volts to U4 (5 volt power regulator). When any of the three switches are pressed, 5 volts is sent from U4 to the rest of the circuits and U3 provides the ground for the rest of the circuits. When the ground is sent out D1 lights up, to signal the user that the transmitter is transmitting. R2 reduces the current through D1. U3 also sends a ground to U2( encoder), which tells the encoder which function switch is pressed. U2 sends data or digital code to the transmitter. R3, R4, R4, R5, R6, R7, R8, R9, R10, S1, S2 and S3 provide the code to U2. R1 set the data rate of the encoder. The code can be varied by installing or uninstalling R3 through R10. U1 receives the data from U2 and modulates it and sends the modulated signal to Q1 which amplifies the signal. R11, R12, C2 and C3 set up the amplifier gain and couple the output to L1. L1(antenna) is an 18awg wire, 2 inches in length. R13 is used to set the antenna’s impedance to 50 ohms. C1 and C4 are decoupling capacitors.

EXHIBIT O – Antenna Information FCC ID O77-WTX-SERIES Antenna description: The antenna is a loop antenna, consisting of a 2 inch segment of 22 gauge stranded wire, where one side of the loop is connected to the output transistor and the other side of the loop is connected to VCC.

EXHIBIT I – Schematics FCC ID O77-WTX-SERIES

EXHIBIT B – Technical Report FCC ID O77-WTX-SERIES Measurement/Technical Report American Digital Technologies WTX 3500 FCC ID: O77-WTX-SERIES August 24, 2000 This report concerns (check one): Original Grant X Class II Change____ Equipment Type: Unlicensed Security / Remote Control Transmitter Deferred grant requested per 47 CFR 0.457 (d)(1)(ii)? Yes_____ no__X__ If yes, defer until: ______N/A______ Date American Digital Technologies agrees to notify the Commission by: ______N/A______ 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 C for intentional radiators – new 47 CFR [10-1-92] provision. Report prepared by: Northwest EMC, Inc. 22975 NW Evergreen Pkwy. Ste 400 Hillsboro, OR 97124 (503) 844-4066 Fax: (503) 844-3826 Report No. AMDI0002 EXHIBIT B – Technical Report FCC ID O77-WTX-SERIES FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 2 Table of Contents Section Description Page 1.0 General Information 3 1.1 Product Description 3 1.2 Related Submittals/Grants 5 1.3 Tested System Details 5 Figure 1 Configuration of Tested System 6 1.4 Test Methodology 7 1.5 Test Facility 7 2.0 System Test Configuration 8 2.1 Justification 8 2.2 EUT Exercise Software 8 2.3 Special Accessories 8 2.4 Equipment Modifications 8 3.0 Antenna Requirement 9 3.1 Antenna Information 9 4.0 AC Powerline Conducted Emissions 10 5.0 RF Exposure Compliance Requirements 11 6.0 Field Strength of Fundamental Frequency 12 7.0 Spurious Radiated Emissions Data 13 8.0 Occupied Bandwidth 14 9.0 Field Strength Calculations 15 9.1 Measurement Bandwidths 15 10.0 Measurement Equipment 16 FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 3 1.0 General Information 1.1 Product Description Manufactured By................................................................................ American Digital Technologies Address.......................................... PMB 278, 581 Lancaster Drive SE, Salem, Oregon USA 97301 Test Requested By: ............................................................................................... Aaron Montesano Model ................................................................................................................................ WTX 3500 FCC ID................................................................................................................. O77-WTX-SERIES Serial Number(s) ........................................................................................................................none Date of Test ..............................................................................................................August 23, 2000 Job Number .......................................................................................................................AMDI0002 Prepared By: Vicki Albertson, Technical Report and Documentation Manager Technical Review By: Approved By: Greg Kiemel, Director of Engineering Dean Ghizzone, President FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 4 1.1 Product Description - continued The EUT, Model WTX 3500 is a 303.825 MHz transmitter seeking authorization under 47 CFR 15.231. It utilizes a manual switch to remotely activate garage doors and security gates. The activation switch is momentary, so the transmitter deactivates automatically within 5 seconds of release. It can only be manually activated, so it cannot be automatically activated at predetermined intervals. Upon manual activation, the EUT transmits a control signal using OOK modulation. Typical of other similar devices such as garage door openers etc., the EUT is housed in a small plastic enclosure with a metal visor clip. It utilizes only one loop antenna that is permanently attached inside the enclosure. The data contained in this report is for that configuration. The EUT is battery operated with no provisions for connection to the AC power line. There is no battery recharging circuitry or provisions made for recharging the batteries. Therefore, per 15.207(d), no conducted measurements were required. The EUT contains the RF transmitter and activiation switch only, there is no digital electronics or provisions for interfacing with any other devices. Therefore, it is not subject to any other FCC authorizations such as verification or DoC. The receiver that is to be used with this transmitter is currently in the final design stages and will be tested for compliance and authorized under a DoC. FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 5 1.2 Related Submittals/Grants None 1.3 Tested System Details EUT and Peripherals Item FCC ID Description and Serial No. EUT O77-WTX-SERIES Model WTX 3500, Serial No. none Cables Cable Type Shield Length (meters) Ferrite Connection Point 1 Connection Point 2 none FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 6 Figure 1: Configuration of Tested System EUT FCC ID: O77-WTX-SERIES Northwest EMC, Inc. Report No. AMDI0002 Page 7 1.4 Test Methodology Radiated testing was performed according to the procedures in ANSI C63.4 (1992).. Radiated testing was performed at an antenna to EUT distance of 3 meters, from 30 MHz to 3.5 GHz. 1.5 Test Facility The semi-anechoic chamber and conducted measurement facility used to collect the radiated and conducted data is located at Northwest EMC, Inc. 22975 NW Evergreen Pkwy., Ste 400 Hillsboro, OR 97124 (503) 844-4066 Fax: 844-3826 The semi-anechoic chamber, and conducted measurement facility is located in Hillsboro, OR, at the address shown above. This site has been fully described in a report filed with the FCC (Federal Communications Commission), and accepted by the FCC in a letter maintained in our files. Northwest EMC, Inc. is recognized under the United States Department of Commerce, National Institute of Standards and Technology, National Voluntary Laboratory Accreditation Pr…

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EXHIBIT E – 20 dB Occupied Bandwidth Test Data FCC ID O77-WTX-SERIES

EXHIBIT F – Radiated Emissions 15.209 Test Data FCC ID O77-WTX-SERIES

EXHIBIT G – Radiated Emissions 15.231 Test Data FCC ID O77-WTX-SERIES

EXHIBIT H – Pulse Train Plots FCC ID O77-WTX-SERIES

EXHIBIT N – Test Setup Photo FCC ID O77-WTX-SERIES Test Setup Photo