FCC ID: HYQ12BBT Keyless Entry System Transmitter

Locking/Unlocking the doors INSTRUCTIONS When you push the Lock button on the key, all the doors can be locked from outside the vehicle. Make sure all the doors are locked when you leave the vehicle. When you push the Unlock button on the key, all the doors can be unlocked from outside the vehicle.

(If applicable) When you push the Trunk button on the key, the car trunk lid can be opened from outside the vehicle.

(If applicable) When you push the Power Back Door button on the key, the back door can be opened /closed from outside the vehicle.

(If applicable) When you push the Panic button on the key, alarms can be operated/unoperated from outside the vehicle. NOTE 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. Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. FCC WARNING

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 May 16, 2002 RE:

Attention: Ms. Hiroka Umeyama FCC ID: HYQ12BBT I have a few comments on this Application. 1 The plots in the report are not clear. Please provide clear plots. 2 3 The setup photo is not clear. Please provide a photo that clearly identifies the EUT. Intentional radiators are to be tested in accordance with ANSI C63.4. While the report states ANSI C63.4 was used, there is no indication in the data that the device was tested in all three orthogonal planes as required by par 13.1.4.1. Please provide evidence that all three orthogonal planes were investigated. Dennis Ward mailto:dward@AmericanTCB.com The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

A- PEX INTERNATIONAL CO., LTD.

EMC HEAD OFFICE DIVISION 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 Japan TEL:0596-24-8116 / FAX:0596-24-8124 Date: May 21, 2002 Re

: Denso Corporation FCC ID : HYQ12BBT Dear Mr. Dennis Ward, Keijiro Kumagai (Mr.) A-Pex International Co., Ltd. Please find the following replies to your comments dated May 16, 2002;

1) Please find the submitted clearer plots for the report in the filing. 2) Please find the re-submitted photos of Test Setup in the filing. 3) Please find the evidence data of device tested in all three orthogonal planes in the filing.

7. Marking location and layout

(10) Scale : free Notes:

Compliance statement of marking will not be changed. But marking layout, size and other indications maybe changed.

(22) 7

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-Transmitter 2. Technical description of the system 2.1 Type number 2.2 Specifications of transmitter

-Nominal frequency

-Local oscillator frequency

-Radio frequency output power

-Type of modulation

-Power Supply

-Antenna

- Nominal supply voltage

- Type of Battery

: 12BBT

: 314.35MHz

: 314.35MHz SAW resonator

: 75.6dBm V/m or less at 3m (*)

: A1D

: 3VDC

: One lithium battery

: Built-in type (Fixed) Note: Calculation of Voltage Average Level A transmitter has the one complete pulse train Voltage Average Level(m V) = (Epeak * Tt) / T

= (Epeak * 75msec) / 150msec Epeak = Voltage peak level T = One complete pulse train time including blanking interval Tt = Total pulse of transmitter in one complete pulse train 2

3.Outline of the system 3.1 Description of the system operation This system is mainly used for locking or unlocking the doors of the vehicle. The transmitter sends a radio wave signal while the button is pushed. The receiver becomes active in response to the signal from the transmitter. 3.2 Transmitter The transmitter sends a signal using radio frequency. The transmitter emits the radio frequency while the button is depressed. If the button is depressed continuously, then the transmitter will only send a signal for a predetermined constant time(For example 20 seconds. This is an auto-power-off feature) 3

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