H78KPBSR100VHF Base Station Radio TX

June 5, 2001 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: KP ELECTRONICS SYSTEMS LTD.’S FCC ID: H78KPBSR100 To Whom It May Concern: This letter will serve as a request for confidentiality for the following items: Schematic Diagrams Block Diagrams Circuit Description We do not wish others to obtain information on our products for marketing purposes. Sincerely, Yoram Kenig

APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: T:\K\KP\599au1\599au1-Test Report.doc TABLE OF CONTENTS LIST TABLE OF CONTENTS LIST FOR PART 90 VHF DEVICE APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED & RF POWER OUTPUT PAGE 3......RF POWER OUTPUT, MOD CHARACTERISTICS & OCCUPIED BW PAGE 4......OCCUPIED BANDWIDTH CONTINUED PAGE 5......OCCUPIED BANDWIDTH PLOT - CW PAGE 6......OCCUPIED BANDWIDTH PLOT – EMISSION MARK PAGE 7......OCCUPIED BANDWIDTH PLOT – 9600 BAUD PAGE 8......SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 9......METHOD OF MEASURING SPURIOUS EMISSIONS AT ANTENNA TERM. PAGE 10.....FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 11.....METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 12.....FREQUENCY STABILITY PAGE 13-14..TRANSIENT FREQUENCY STABILITY PAGE 15-16..TRANSIENT FREQUENCY STABILITY PAGE 17.....SPECTRUM EFFICIENCY PAGE 18.....SPECTRUM EFFICIENCY PLOT PAGE 19.....LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 2A-2E.....SCHEMATIC EXHIBIT 3.........BLOCK DIAGRAM EXHIBIT 4.........TECHNICAL SPECIFICATION EXHIBIT 5A-5F.....OPERATIONAL DESCRIPTION EXHIBIT 6.........EXTERNAL PHOTO – FRONT VIEW EXHIBIT 7.........EXTERNAL PHOTO – REAR VIEW EXHIBIT 8.........INTERNAL PHOTO – COMPONENT VIEW EXHIBIT 9.........INTERNAL PHOTO – COPPER VIEW EXHIBIT 10........TEST SET UP PHOTO EXHIBIT 11A-11B...USERS MANUAL EXHIBIT 12........TECHNICAL MANUAL EXHIBIT 13........TUNING PROCEDURE APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: T:\K\KP\599au1\599au1-Test Report.doc Page 1 of 19 GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.1033 KP ELECTRONIC SYSTEMS LTD. will sell the (c)(1)(2) FCC ID: H78KPBSR100 VHF transceiver in quantity, for use under FCC RULES PART 90. 2.1033 (c) TECHNICAL DESCRIPTION 2.1033 (3) User Manual See Exhibit 11. 2.1033 (4) Type of Emission: 11K0F2D For 12.5kHz For 25kHz & 12kHz (9600 Baud Rate) Bn = 2M + 2DK M = 4,800 Bits per second D = 700 Hz (Peak Deviation) K = 1 Bn = 2(4.8K) + 2(700)(1) = 9.6K + 1.4K = 11.0k ALLOWED AUTHORIZED BANDWIDTH = 12.5kHz. For 12.5KHz ALLOWED AUTHORIZED BANDWIDTH = 11.25kHz. 90.209(b)(5) 2.1033 (5) Frequency Range: 136-174 MHz (6) Power Range and Controls:There are NO user Power controls. (7) Maximum Output Power Rating: 12.0 Watts , into a 50 ohm resistive load. (8) DC Voltages and Current into Final Amplifier: DC POWER INPUT FINAL AMPLIFIER ONLY Vce = 12.0 Volts Ic = 2.31 A Pin = 27.7 Watts (9) Tune-up procedure. The tune-up procedure is given in EXHIBIT 13. APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: T:\K\KP\599au1\599au1-Test Report.doc Page 2 of 19 2.1033 (10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 2A-2E. The block diagram is included as EXHIBIT 3. (8) Instruction book. The instruction manual is included as EXHIBIT 11. (10) Description of all circuitry and devices provided for determining and stabilizing frequency is included in the circuit description in EXHIBIT 5. 2.1033(c)(11) A photograph or drawing of the equipment identification label is shown in Exhibit 1. 2.1033(c)(12) Photographs of the equipment of sufficient clarity to reveal equipment construction and layout and label location are shown in Exhibit 6-9. 2.1033(c)(13) For equipment employing digital modulation, a detail description of the modulation technique. This UUT uses FSK to modulate the transmitter. 2.1033(c)(14) data required for 2.1046 to 2.1057 See Below 2.1046(a) RF_power_output. RF power is measured by connecting a 50 ohm, resistive wattmeter to the RF output connector. With a nominal battery voltage of 12.0 VDC, and the transmitter properly adjusted the RF output measures : POWER MEASUREMENTS: INPUT POWER - (12.0V)(2.31A) = 27.7 Watts OUTPUT POWER: 12.0 Watts Efficiency = 43% APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: T:\K\KP\599au1\599au1-Test Report.doc Page 3 of 19 METHOD OF MEASURING RF POWER OUTPUT Transmitter 50 ohm under test Resistive Wattmeter Power Supply 2.1047(a) Voice Modulation_characteristics: NOT APPLICABLE, F2 type of emission. 2.1049 Audio Low Pass Filter This UUT does not have a low pass filter. 2.1049 Occupied_bandwidth: 90.210(c,) (Emission Mack C) For transmitters that are not equipped with an audio low pass filter pursuant to S90.211(b), the power of any emission must be attenuated below the unmodulated carrier output power as follows; (1) On any frequency removed from the center of the authorized bandwidth by a displacement frequency(fd in kHz) of more than 5kHz but not more Than10 kHz: At least 83 log(fd/5)dB; (2)ON any frequency removed from the center of the authorized bandwidth by a displacement frequency(fd in kHz) of more than 10kHz, but not more than 250% of the authorized bandwidth: At least 29 log(fd2/11)dB or 50dB, whichever is the lesser attenuation; (3) On any frequency removed from the center of the authorized bandwidth by more than 250% of the authorized bandwidth: At least 43+10 log(Po)dB. APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: T:\K\KP\599au1\599au1-Test Report.doc Page 4 of 19 90.210(d) Emission Mask D - 12.5 kHz channel bandwidth equip- ment. For transmitters designed to operate with a 12.5 kHz channel bandwidth, any emission must be attenuated below the power (P) of the highest emission contained within the authorized bandwidth as follows: (1) On any frequency from the center of the authorized bandwidth f0 to 5.625 kHz removed from f0: Zero dB. (2) On any frequency from the center of the authorized bandwidth by a displacement frequency (fd in kHz) of more than 5.625 kHz but no more than 12.5 kHz: At least 7.27 (fd - 2.88 kHz) dB. (3) On any frequency removed from the center of the authorized band- width by a displacement frequency (fd in kHz) of more than 12.5 kHz: At least 50 + 10…

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90.203 Spectrum Efficiency Applications for part 90 certification of transmitters designed to operate on frequencies in the 150-175 MHz and/or 421-512 MHz bands, received on or after February 14, 1997, must include a ccertification that the equipment meets a spectrum efficiency standard of one voice channel per 12.5 KHz of channel bandwidth. Additionally, if the equipment is capable of transmitting data, has a transmitter output power greater than 500 mW, and has a channel bandwidth of more than 6.25 kHz, the equipment must be capable of supporting a minimum data rate of 4800 bits per second per 6.25 kHz of channel bandwidth. The EUT was operated at 9600 baud rate (4800 bits/second). A plot of the data is shown on the next page. The data shows the device complies with the requirements for this Part. APPLICANT: KP ELECTRONIC SYSTEMS LTD. FCC ID: H78KPBSR100 REPORT #: K\KP\599AU1-1\599AU1-RPT.doc PAGE#: 17