KJ8HHT-372CSWGarage Door Opener

FCC ID: KJ8HHT-372CSW SECTION 6 USER'S MANUAL FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW

FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW

FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW 4

FCC ID: KJ8HHT-372CSW Photo 1. EUT, Front View FCC ID: KJ8HHT-372CSW Photo 2. EUT, Rear View

SECTION 3 LABELING INFORMATION FCC ID: KJ8HHT-372CSW FCC ID: KJ8HHT-372CSW

FCC ID: KJ8HHT-372CSW Photo 3. Internal View, Top Side FCC ID: KJ8HHT-372CSW Photo 4. Internal View, Bottom Side

FCC ID: KJ8HHT-372CSW SECTION 1 GENERAL INFORMATION 4 FCC ID: KJ8HHT-372CSW GENERAL INFORMATION Product Description The Equipment Under Test (EUT) is a Wayne Dalton Corporation, Model Operator 31, 372.5 MHz Transmitter Version C. The EUT is a three button transmitter and part of a system which connects to a garage door opener. The EUT incorporates an internal antenna which is etched directly into the PCB. Related Submittal(s)/Grant(s) The EUT will be used with a receiver (application already submitted and approved under FCC ID: KJ8SAR-3725GE). FCC ID: KJ8HHT-372CSW SECTION 2 TESTS AND MEASUREMENTS FCC ID: KJ8HHT-372CSW TESTS AND MEASUREMENTS Configuration of Tested System The sample was tested per ANSI C63.4, Methods of Measurement from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz (1992). Conducted and radiated emissions data were taken with the test receiver or spectrum analyzer's resolution bandwidth adjusted to 9 kHz and 120 kHz, respectively. All measurements are peak unless stated otherwise. The video filter associated with the spectrum analyzer was off throughout the evaluation process. Interconnecting cables were manipulated as necessary to maximize emissions. A block diagram of the tested system is shown in Figure 1. Test configuration photographs for spurious and fundamental emissions are shown in Figure 2. Since the EUT is a hand held device, it was placed into a continuous mode of transmit and rotated about all 3 axis to obtain worse case results. Test Facility Testing was performed at US Tech's measurement facility at 3505 Francis Circle, Alpharetta, GA. This site has been fully described and submitted to the FCC, and accepted in their letter marked 31040/SIT. Additionally this site has also been fully described and submitted to Industry Canada (IC), and has been approved under file number IC2982. Modifications No modifications were made to bring the EUT into compliance with FCC Part 15, Class B Requirements. Test Equipment Table 2 describes test equipment used to evaluate this product. FCC ID: KJ8HHT-372CSW FIGURE 1 TEST CONFIGURATION EUT FCC ID: KJ8HHT-372CSW FIGURE 2 Photograph(s) for Spurious and Fundamental Emissions FCC ID: KJ8HHT-372CSW FIGURE 2 Photograph(s) for Spurious and Fundamental Emissions FCC ID: KJ8HHT-372CSW TABLE 1 EUT and Peripherals PERIPHERAL MANUFACTURER MODEL NUMBER SERIAL NUMBER FCC ID:CABLES P/D Transmitter Wayne Dalton Corporation (EUT) Operator 31, 372.5 MHz Transmitter Ver. C NoneKJ8HHT- 372CSW (Pending) None FCC ID: KJ8HHT-372CSW TABLE 2 TEST INSTRUMENTS TYPEMANUFACTURERMODELSN. SPECTRUM ANALYZERHEWLETT-PACKARD8593E3205A00124 SPECTRUM ANALYZERHEWLETT-PACKARD8558B2332A09900 S A DISPLAYHEWLETT-PACKARD853A2404A02387 COMB GENERATORHEWLETT-PACKARD8406A1632A01519 RF PREAMPHEWLETT-PACKARD8447D1937A03355 RF PREAMPHEWLETT-PACKARD8449B3008A00480 HORN ANTENNAEMCO31153723 BICONICAL ANTENNAEMCO31109307-1431 LOG PERIODIC ANTENNA EMCO31469110-3600 LISNSOLAR ELE.8012-50N/A THERMOMETERFLUKE525215250 MULTIMETERFLUKE8553710469 PLOTTERHEWLETT-PACKARD7475A2325A65394 BILOGCHASECBL6112A2238 FCC ID: KJ8HHT-372CSW Periodic Operation (47 CFR 15.231(a1)) A transmitter manually activated must automatically deactivate within not more than 5 seconds of being released. The transmitter is a 3 button transmitter. The EUT continues to transmit while each button is being pressed. The EUT ceases transmission almost immediately upon being released and appears to finish the current packet being transmitted. Therefore the longest period of time the transmitter should take to deactivate is a packet length, or 41.75 msec as shown in Figure 3. FCC ID: KJ8HHT-372CSW FIGURE 3 Periodic Operation 15.231(a)(c1) FCC ID: KJ8HHT-372CSW Field Strength of Fundamental Emission (47 CFR 15.231b) Measurements were made using a peak detector. Field strength of the peak fundamental emission is shown in Table 3 and Figure 4. Duty Cycle Correction During 100 msec: Each function key sends a different series of characters, but each packet period (97.0 msec) never exceeds a series of 74* long (300.0 μs) and short (100.0 μs) pulses. Assuming any combination of short or long pulses may be obtained due to encoding the worse case transmit duty cycle would be considered 74 x 300.0 μs per 97.0 msec = 22% duty cycle. Figures 5a through 5f show the characteristics of the pulse train for one of these functions. *- Note: 35.75 msec (data transmit time) / 550.0 μs (period of long pulse) = 65.0 4.75 msec (preamble transmit time) / 550.0 μs (period of long pulse) = 8.6 65.0 + 8.6 = 74 pulses Duty Cycle Correction = 20 log (0.22) = -13.2 dB Field strength of the average fundamental emission is shown in Table 4. FCC ID: KJ8HHT-372CSW TABLE 3 FIELD STRENGTH OF FUNDAMENTAL EMISSION Test Date:August 28, 1999 UST Project:99-714 Customer:Wayne Dalton Corporation Model:Operator 31, 372.5 MHz Transmitter Ver. C FREQ. (MHz) TEST DATA (dBm) @ 3m ANTENNA FACTOR + CABLE ATTENUATION RESULTS (uV/m) @ 3m PEAK FCC LIMITS (uV/m) @ 3m 372.5 -43.220.015,559.784,375 SAMPLE CALCULATIONS: RESULTS uV/m @ 3m = Antilog ((-43.2 + 20.0 + 107)/20) = 15,559.7 CONVERSION FROM dBm TO dBuV = 107 dB Test Results Reviewed By: Name: Tim R. Johnson FCC ID: KJ8HHT-372CSW TABLE 4 FIELD STRENGTH OF FUNDAMENTAL EMISSION Test Date:August 28, 1999 UST Project:99-714 Customer:Wayne Dalton Corporation Model:Operator 31, 372.5 MHz Transmitter Ver. C FREQ. (MHz) TEST DATA (dBm) @ 3m* ANTENNA FACTOR + CABLE ATTENUATION RESULTS (uV/m) @ 3m AVERAGE FCC LIMITS (uV/m) @ 3m 372.5-56.4 20.0 3,404.18,437.5 * Adjusted by duty cycle = 20 log (0.22) = -13.2 dB SAMPLE CALCULATIONS: RESULTS uV/m @ 3m = Antilog ((-56.4 + 20.0 + 107)/20) = 3,404.1 CONVERSION FROM dBm TO dBuV = 107 dB Test Results Reviewed By: Name: Tim R. Johnson FCC ID: KJ8HHT-372CSW FIGURE 4 FIELD STRENGTH OF FUNDAMENTAL EMISSION 15.231(b) FCC ID: KJ8HHT-372CSW FIGURE 5a DUTY CYCLE CHARACTERISTICS FCC ID: KJ8HHT-372CSW FIGURE 5b DUTY CYCLE CHARACTERISTICS FCC ID: KJ8HHT-372CSW F…

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