H78ATSU100UHF RADIO SLARM TRANSMITTER

June 16, 1998 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: KP ELECTRONICS INC.’S FCC ID: H78ATSU100 To Whom It May Concern: This is to advise you of the contact information for the above mentioned applicant: YORAM KINIG KP ELECTRONICS INC. 109 TUDOR DRIVE NORTH WALES, PA 19454 TELEPHONE: 215-542-7460 FAX: 215-542-7461 EMAIL: [email protected] Regards, Sharon A. Hoffman SAH/hs Encl.

TABLE OF CONTENTS LIST APPLICANT: KP ELECTRONICS, INC. FCC ID: H78ATSU100 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED PAGE 3......RF POWER OUTPUT PAGE 4......MODULATION CHARACTERISTICS PAGE 5-6....OCCUPIED BANDWIDTH PAGE 7......SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 8......FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 9......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 10......FREQUENCY STABILITY PAGE 11-12...TRANSIENT FREQUENCY STABILITY PAGE 13......CERTIFICATION OF TECHNICAL DATA PAGE 14......LIST OF TEST EQUIPMENT EXHIBITS: EXHIBIT 1.........POWER OF ATTORNEY LETTER EXHIBIT 2.........FCC ID LABEL SAMPLE EXHIBIT 3.........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 4A........FRONT VIEW EXTERNAL PHOTOGRAPH EXHIBIT 4B........REAR VIEW EXTERNAL PHOTOGRAPH EXHIBIT 4C........INTERNAL COMPONENT IN CHASSIS PHOTOGRAPH EXHIBIT 4D........INTERNAL COMPONENT PHOTOGRAPH EXHIBIT 4E........INTERNAL COPPER PHOTOGRAPH EXHIBIT 5.........BLOCK DIAGRAM EXHIBIT 6A-6B.....PARTS LIST EXHIBIT 7A........SCHEMATIC - ENCODER EXHIBIT 7B........SCHEMATIC - SYNTHESIZER EXHIBIT 7C........SCHEMATIC - FR TRANSMITTER EXHIBIT 7D........SCHEMATIC - POWER SUPPLY EXHIBIT 8A-8E.....USER'S MANUAL EXHIBIT 9.........AUDIO FREQUENCY RESPONSE GRAPH EXHIBIT 10........AUDIO INPUT VS DEVIATION GRAPH EXHIBIT 11........AUDIO LOW PASS FILTER GRAPH EXHIBIT 12........OCCUPIED BANDWIDTH CW PLOT EXHIBIT 13........OCCUPIED BANDWIDTH 3K HZ TONE EXHIBIT 14A-14B...TRANSIENT FREQUENCY RESPONSE PLOTS APPLICANT: KP ELECTRONICS, INC. FCC ID: H78ATSU100 REPORT #: F:\CUS\K\KP\KP6U8.RPT PAGE #: TABLE OF CONTENTS GENERAL INFORMATION REQUIRED FOR TYPE ACCEPTANCE 2.983 (a,b,c) KP ELECTRONICS, INC. will sell the FCCID: H78ATSU100 UHF transmitter in quantity, for use under FCC RULES PART 90. 2.983 (d) TECHNICAL DESCRIPTION (1) ALLOWED AUTHORIZED BANDWIDTH = 11.25KHz. 90.209(b)(5) For 3000Hz tone Bn=2M+2DK M = 3000 = 3.0KHz D = 1.0KHz (Peak Deviation) K=1 Bn = 2(3.0K) + 2(1.0K)(1) = 6.0K + 2.0K = 8.0K Type of Emission: 8K0F3E For 1500Hz tone Bn=2M+2DK M = 1500 = 3.0KHz D = 3.0KHz (Peak Deviation) K=1 Bn = 2(1.5K) + 2(3.0K)(1) = 3.0K + 6.0K = 8.0K Type of Emission: 8K0F2D (2) Frequency Range: 421-512 MHz (3) Power Range and Controls:This UUT cannot be switched. (4) Maximum Output Power Rating: 3.1Watts into a 50 ohm resistive load. (5) DC Voltages and Current into Final Amplifier: POWER INPUT FINAL AMPLIFIER ONLY POWER OUT 3.1 Vce Volts 13.6 Ice Amps 0.65 Pin Watts 8.84 (6) Function of each electron tube or semiconductor device or other active circuit device: See attached list - Exhibit 6A-6B. APPLICANT: KP ELECTRONICS, INC. FCC ID: H78ATSU100 REPORT #: F:\CUS\K\KP\KP6U8.RPT PAGE #: 1 2.983 (d)(6) 2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as Exhibit 7A-7D. The block diagram is included as Exhibit 5. (8) Instruction book. The instruction manual is in cluded as Exhibit 8A-8E. (9) Tune-up procedure. The tune-up procedure is given in the user's manual. (10) Description of all circuitry and devices provided for determining and stabilizing frequency is included in the circuit description in Exhibit 8. 2.983 (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. In addition to the interstage filtering the multi- section low pass filter is described in paragraph 6.3.5 of the instruction manuel. Limiting Modulaton: The transmitter audio limiting circuitry is con- tained in the loop filter U501, U502, & U503. Limiting Power: The power is preset at the factory for either high or low. There is no provision for limiting power. (12) Digital modulation. This unit does NOT use digi- tal modulation. 2.983(e) The data required by 2.985 through 2.997 is submitted below. APPLICANT: KP ELECTRONICS, INC. FCC ID: H78ATSU100 REPORT #: F:\CUS\K\KP\KP6U8.RPT PAGE #: 2 2.985(a) RF power output. The test procedure used was TIA/EIA-603 S2.2.1. RF power is measured by connecting a 50 ohm, resistive wattmeter to the RF output connec- tor. With a nominal battery voltage of 7.2V, and the transmitter properly adjusted the RF output measures: INPUT POWER: (13.6V)(0.55A) = 7.48Watts OUTPUT POWER: 3.1 Watts Efficiency: 41% 2.985(a) RF power output. The test procedure used was TIA/EIA-603 S2.2.1. /---------------\ | Dummy | /-| Microphone | || | | \---------------/ | | /------------\ /------------\ /---------\ | | | | STANDARD | | RF | | | Transmitter|-----------| TRANSMITTER|---| POWER | \-| under test | | LOAD | | METER | \------------/ \------------/ \---------/ APPLICANT: KP ELECTRONICS, INC. FCC ID: H78ATSU100 REPORT #: F:\CUS\K\KP\KP6U8.RPT PAGE #: 3 2.987(a) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification TIA/EIA-603 S2.2.6.2.1. The audio frequency response curve is shown on the page after next. 2.987(b) AUDIO LOW PASS FILTER Transmitters utilizing analog emissions that are equipped with an audio low-pass filter must meet the requirements in S90.210. 2.987(b) AUDIO INPUT VERSUS MODULATION The audio frequency input versus deviation was measured in accordance with TIA/EIA Specification 603 S2.2.6.2.1. with the follow- ing exceptions; starting with 1000Hz the input was increased well beyond the deviation changing. This measurement was repeated for the band limits and any frequency deemed appropriate. /---------------\ /----------\ /----------\ | Dummy | | Audio | | RMS | /-| Microphone |--| Generator| /-| VOLTMETER| | | | \----------/ | \----------/ | \---------------/ | |----------------------------------/ | /------------\ /------------\ /---------\ | | | | STANDARD | | Test | | | Transmitter|-----------| TRANSMITTER|---| Receiver| \-| under test | | PROBE | | | \------------/ \------------/ \---------/ 1.The test receiver audio bandwidth was <50Hz to >20,000Hz. A plot of the audio input versus deviatio…

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