DCP7FGPD102W

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STATEMENT OF MICHAEL A. NICOLAY In Connection With APPLICATION FOR CERTIFICATION SECURITY ALARM TRANSMITTER FCC ID:DCP7FGPD102W I am an Engineer, an employee in the firm of Carl T. Jones Corporation, with offices located in Springfield, Virginia. My education and experience are a matter of record with the Federal Communications Commission. All of the measurements contained in this test report were performed by me or under my supervision, and I attest to the accuracy of each. I submit that, to the best of my knowledge, the test sample meets the technical standards set forth in the Commission's Part 15 Rules and Regulations. DATED: November 3, 1999 Michael A. Nicolay Carl T. Jones Corporation 7901 Yarnwood Court Springfield, VA 22153 (703) 569-7704 [email protected]

APPLICATION FOR CERTIFICATION: MODEL PD-102W and PWX1 TRANSMITTER TECHNICAL REPORT FCC ID DCP7FGPD102W Name and address of Applicant:Prepared By: Alarm Electronics Manufacturing Co. Inc.Edgar L. Bonner 44 All Healing Springs Road Taylorsville N. C. 28681 Ph. (828) 632-3365 Installation and Operating Instructions: A copy of the Model PWX1 “Installation and Operating Instructions” is attached to this report. DESCRIPTION OF CIRCUIT FUNCTIONS: POWER SOURCE:9V Battery stack 3 lithium cells type CR1220 GENERAL OPERATION: The PWX1 is intended for use with receivers: FCC ID DCP7FG800, DCP7FGAER902L, DCP7FGAER904L, DCP7FG811 The format of the transmission is compatible with the receivers. The PWX1 is a single button manually operated transmitter for use in security alarm systems. It is designed to be used as remote on/off control and for panic/emergency alarm activation. There is no power connected to the transmitter battery power source until such time as the transmitter is activated by manually pressing the switch. The transmitter will transmit as long as the button is pressed and ceases transmission when the button is released. CIRCUIT OPERATION DETAIL Referring to the schematic diagram: Power is applied to the transmitter by activating switch SW1. When power is applied the supply current to the encoder is passed through resistor R4 which drops the operating voltage to the encoder IC1 to approximately 5 volts. Capacitor C3 is a power supply by-pass for the encoder IC1. Resistor R2 and Capacitor C4 set the clock frequency of the encoder. DZ1 is a 6.8 v zener diode through which the battery voltage is monitored. When the applied input voltage is below the zener diode voltage plus the encoder trip voltage (approx 1 volt) a “Low battery” condition is detected at the encoder input RB0 and the transmitter will set the low battery flag bit in the transmitted data stream. Because the current drain of the encoder is very low at low voltages Resistor R7 is required to discharge the various capacitances on the network so the encoder will properly reset when the button is rapidly released and pressed again. LED1 is a visual indicator that the transmitter is operating. Current is supplied to LED1 via resistor R6 when the switch is activated. The encoder generates the serial digital data output on pin RA1. This digital data is applied to the input of the RF stage transistor Q1 via resistor R3. This causes the RF to be gated on and off with the digital output of the encoder The RF section consists of a crystal oscillator where the primary tuning element L1 is also the primary radiating element (antenna) of the transmitter.. Capacitors C1 and C2 tune the resonant circuit to the same frequency as the crystal CRY1 which is in the feedback loop. Capacitor C5 lowers the feedback voltlage and minimize harmonics. The frequency of operation is thereby determined by the crystal frequency. The crystal is a two port SAW type device. The transmitter is aligned at the factory and there are no provisions for user adjustment of the operating frequency. After testing and tuning are complete the entire assembly is sealed. There are no user accessible parts and batteries are not replaceable. Because of the low current drain the batteries can be expected to last in excess of 10 years or 50,000 operations. .

APPLICATION FOR CERTIFICATION: MODEL PD-102W and PWX1 TRANSMITTER FCC ID DCP7FGPD102W PARTS LIST PART IDDESCRIPTIONVALUE/PART NO. R1Resistor 1/8w 47k R2Resistor 1/8w150k R3Resistor 1/8w1 meg R4Resistor 1/8w10k R5Resistor 1/8w51 ohm R6Resistor 1/8w3.3k R7Resistor 1/8w10 meg C1Capacitor, Ceramic1.5-5pf C2Capacitor, Variable 2 - 6 pf C3Capacitor, Ceramic.01 mF C4Capacitor, Ceramic22 pf C5Capacitor, Ceramic22 pf Q1Transistor, NPNMMBTH10 CRY1Crystal SAW resonatorRO2104A IC1Integrated Circuit16C54A L1Inductor4T 5/32 dia #22ga buss wire DZ1Zener DiodeTZM5235B

APPLICATION FOR CERTIFICATION: MODEL PD-102W and PWX1 TRANSMITTER FCC ID DCP7FGPD102W PARTS LIST PART IDDESCRIPTIONVALUE/PART NO. R1Resistor 1/8w 47k R2Resistor 1/8w150k R3Resistor 1/8w1 meg R4Resistor 1/8w10k R5Resistor 1/8w51 ohm R6Resistor 1/8w3.3k R7Resistor 1/8w10 meg C1Capacitor, Ceramic1.5-5pf C2Capacitor, Variable 2 - 6 pf C3Capacitor, Ceramic.01 mF C4Capacitor, Ceramic22 pf C5Capacitor, Ceramic22 pf Q1Transistor, NPNMMBTH10 CRY1Crystal SAW resonatorRO2104A IC1Integrated Circuit16C54A L1Inductor4T 5/32 dia #22ga buss wire DZ1Zener DiodeTZM5235B

FCC ID: DCP7FGPD102W 1 CERTIFICATION APPLICATION I. INTRODUCTION This measurement report is submitted in support of an Application for Certification in accordance with Part 2, Subpart J and Part 15, Subpart C (effective 6/23/89) of the Federal Communications Commission's Rules and Regulations. The equipment under test (EUT) is a low power SECURITY ALARM RF transmitter. This transmitter operates at a fixed frequency of 304 MHz +/- 250 kHz and is powered by three lithium 3 volt batteries equaling 9 Volt DC. It is identified as either transmitter Model PD-102W Transmitter or Model PWX-1 (FCC ID:DCP7FGPD102W). Operation under the transition provisions of Paragraph 15.37 is not requested for this device. The measurements contained in this application demonstrate compliance with the limitations in effect since 6/23/89. II. INFORMATION REQUIRED FOR CERTIFICATION Paragraph(s) 2.1033(a)This application for certification is filed on FCC Form 731 with all questions answered. An application fee of $940.00 was payed. 2.1033(b)(1)The full name and mailing address of the manufacturer of the device and applicant for certification is: Alarm Electronics Manufacturing Company, Inc. 44 All Healing Springs Rd. Taylorsville, NC 28681 (2)The FCC Identifier of the device is 7FGPD102W. (3)A copy of the installation and operating instructions to be furnished to the user is included in the exhibits section of this application. FCC ID: DCP7FGPD102W 2 (4)The transmitter is a SECURITY ALARM unit and is powered by three stacked lithium batteries (CR1220) Volt transistor batteries. It is designed to operate in the frequency of 304 MHz MHz +/- 250 kHz. Complete circuit schematics are provided in the exhibits section of this application. (5)A block diagram of the device is included in the appropriate exhibits section of this application. (6)A report of measurements is included in this report. (7)Photographs of this device showing the label placement, chassis assembly, and circuit layout are included in the exhibits section of this application. An digitized sample of the label is included. (8)This equipment is a stand-alone unit. No peripherals or accessories are involved. (9)Certification under the transition provisions of Paragraph 15.37 is not being requested for this device. (10)N/A. III. GENERAL TEST CONDITIONS AND PROCEDURES Measurement procedures were used as outlined in ANSI C63.4-92, as specified in Part 15.31, except as noted herein. The open field tests were performed on a three-meter range maintained by Carl T. Jones Corporation at the Springfield facility. Complete description and measurement data for the site have been placed on file with the Commission, Registration # 90490. Carl T. Jones Corporation is listed by the FCC as a facility available to do measurement work for others on a contract basis. Prior to open-field testing, the equipment was placed in a shielded enclosure and scanned at a close distance to determine its emission characteristics. IV. RADIATED EMISSION MEASUREMENTS FCC ID: DCP7FGPD102W 3 The transmitter was assembled on a rotatable wooden test stand approximately 0.8 meters in height. The transmitter's antenna was fully extended. The emission spectrum was examined up to 1000 MHz using a Hewlett-Packard 8568B spectrum analyzer and Compliance Design "Roberts" tuned dipole antennas. At each emission frequency, the EUT was rotated 360 degrees, and the antenna was raised and lowered from one to four meters to determine the maximum emission levels. Measurements were taken using both horizontal and vertical antenna polarizations. The spectrum analyzer's 6 dB bandwidth was set to 100 kHz. The analyzer was operated in the peak detection mode for measurements of emissions less than 1000 MHz. No post-detector video filters were used. The highest emission amplitudes relative to the appropriate limit were measured and have been recorded in Table 1. All emissions not reported were more than 20 dB below the specified limit. The actual field intensity in decibels above one microvolt per meter (dBuV/m) is determined by algebraically adding the measured level in dBuV, the antenna factor (dB), and the cable loss (dB) at the appropriate frequency. FI a (dBuV/m) = FI m (dBuV) + AF (dB) + CL (dB) FI a = Actual Field Intensity FI m = Measured Field Intensity AF = Antenna Factor CL = Cable Loss As a sample calculation, assume a particular device emits a signal with a frequency of 49.86 MHz. The maximized received signal level measured as 69.4 dB μ V. The total attenuation factor (antenna factor plus cable loss) for 49.86 MHz is 4.8 dB. The actual radiated field is calculated as follows: 69.4 dB μ V + 4.8 dB = 74.2 dBuV/m or 5,128.6 μ V/m (peak) The field strength of the fundamental did not exceed the authorized field strengths (average) at 3 FCC ID: DCP7FGPD102W 4 meters, as specified in Paragraph 15.231(b). All other emissions were found to be in compliance with the restrictions of Paragraph 15.231(b) of the Commission's Rules. Because the emissions were below the limits using peak detection, average detection and duty cycle correction factors were not calculated. V. OCCUPIED BANDWIDTH MEASUREMENTS In order to demonstrate compliance with the occupied bandwidth restrictions of Paragraph 15.231(c), the occupied bandwidth of the EUT was measured. Paragraph 15.231(b) specifies that the occupied bandwidth cannot exceed 0.25% of the center frequency as measured 20 dB down from the modulated carrier. The allowed occupied bandwidth for this device is 760 kHz. One spectral plot is included with a resolution bandwidth (RBW) adjusted to 10 kHz, as per the recommendation of Mr. Greg Czumak. This plot demonstrate compliance with the requirements of Paragraph 15.231(c). VI. POWER LINE CONDUCTED EMISSIONS MEASUREMENTS Measurements of the power line conducted emissions were not performed since the EUT has no means for connection to the public power utility grid. VII. Periodic Operation in the band above 70 MHz (15.231) The equi…

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TABLE 1 FIELD STRENGTH RADIATED EMISSIONS DATA SHEE T ANTENNA FACTORRCL 1993/1 EMISSIONANTENN AEMISSIONANDEMISSIONLIMIT FREQUENC YPOLARITYLEVELCABLE LOSSLEVEL(3 METERS) (MHz) (H,V)(dBuV)(dB)(dBuV/m)(dBuV/m) 304.00V34.4+23.2=57.775.7 304.00H43.0+23.2=66.075.7 608.00V<1.0+31.1=<32.145.6 608.00H10.5+31.1=41.645.6 912.00V<1.0+36.2=<37.245.6 912.00H<1.0+36.2=<37.245.6 1,216.00H&V<16.5+26.0=<42.555.1** 1,520.00H&V<14.2+28.3=<42.555.1** 1,824.00H&V<13.5+29.5=<43.055.1** 2,128.00H&V<11.2+31.8=<43.055.1** 2,432.00H&V<11.0+32.2=<43.255.1** 2,736.00H&V<9.8+34.3=<44.155.1** 3,040.00H&V<9.9+35.5=<44.555.1** ALL MEASUREMENT DATA REPORTED IN PEAK . Limits specified in average. ** 1 Meter Limit NOTE: 75.7 dBuV/m = 100uW EIRP @ 3 Meters 45.6 dBuV/m = 0.1uW EIRP @ 3 Meters CLIENT:ALARM ELECTRONICS FCC ID: MODEL:PD-102CW TEST DATE:08/20/99 TEST ENGINEER: Michael A. Nicolay