K66VX-4000U-2ESingle Channel Mode

O PERATING M ANUAL Congratulations! You now have at your fingertips a valuable communications tool – a Yaesu two-way radio! Rugged, reliable and easy to use, your Yaesu radio will keep you in touch for years to come, with negligible maintenance. Please take a few minutes to read this manual carefully. The information presented here will allow you to derive maximum performance from your radio. After reading it, keep the manual handy for quick reference, in case questions arise later on. We're glad you joined the Yaesu team. Call on us any time, because our business is communications. Let us help you get your message across. NOTICE There are no user-serviceable points inside this transceiver. All service jobs must be referred to your Authorized Service Center or Network Administrator. Features The VX-4000 Series are rugged basic-featured FM transceivers designed for flexible mobile and base station business communications in the 50-watts VHF and 40- watts UHF A highly integrated surface mount circuit design and a die-cast aluminum chassis assure reliability. Selectable power output of LOW(5 – 25 watts) or High (VHF:50watts, UHF:40watts) without the need of forced air cooling is possible due to the large heatsink surface area of the compartmentalized one-piece diecast chassis. The 250-channels memories can each be programmed with a 8-character channel name. A 39-tone programmable CTCSS encoder/decoder is built in as standard. A 104 standerd digital codes programmable DCS encoder/decoder is built in as standard. Important channel frequency data is stored in EEPROM and flash memory on the CPU, and is easily programmable by dealers using a personal computer and the Yaesu CT-71 Programming Cable and CE-35 Software. Front panel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C ONTROL & C ONNECTORS 1 TX Indicator This lamp glows red when the radio is transmitting. 2 POWER Button Turn the radio on or off. (Press and hold in this button for 1.5 second.) 3 BUSY Indicator This lamp glows green when the channel is busy. 4 Liquid Crystal Display The display include an 8-character alpha-numeric section showing channel and group names, status and identity information, and error messages. Additional indicators on the display show priority channel assignments and scan include / exclude selection. 5 UP Pressing this button changes the current group (and displayed group number or name). Holding this button for more than 1/2 second causes the function to repeat. 6 DOWN Pressing this button changes the current group (and displayed group number or name). Holding this button for more than 1/2 second causes the function to repeat. 7 Programmable Function Button This button can be set up for special applications, such as high/low power selection, monitor, dimmer, talk- around, and call alert function, as determined by your network requirements and programmed by your Yaesu dealer. The default function is set as Dimmer Button. 8 HOME Indicator This lamp glows orange when incorrect position at the setting of CE-35. 9 VOLUME Knob This knob adjusts the receiver volume. 10 CHANNEL Selector Knob This knob select the operating channel. 11 Programmable Function Button The default function is set as MONI Button. 12 Programmable Function Button The default function is set as Low Power Button. 13 Programmable Function Button The default function is set as no function Button. 14 Programmable Function Button The default function is set as no function Button. Rear 15 16 18 18 15 Antenna Socket The 50-ohm coaxial feedline to the antenna must be connected here using a type-M (PL-259) plug. 16 EXT SP (External Speaker) An external loudspeaker may be connected to this 2- contact, 3.5-mm mini-phone jack. Caution: Do not connect this line to ground, and be certain that the speaker has adequate capability to handle the audio output from the radio. 17 13.8V DC Cable w/Connector The supplied DC power cable must be connected to this 2-pin connector. Use only the supplied fused cable, extended if necessary, for power connection. 18 DSUB 25-Pin Accessory Connector External TX audio line input, PTT, Squelch, and external RX audio line output signal may be obtained from this connector for use with accessories such as data transmission/reception modems, ets. Side 19 19 Microphone Jack Connect the microphone plug to this jack. Basic Operation of the Transceiver Important! –Before turning on the radio the first time, confirm that the power connections have been made correctly and that a proper antenna is connected to the antenna jack. Push the POWER switch turn on the radio. The display will become illuminated. The radio will start up on the last channel used prior to shutdown during the previous operating session. Transmitting To transmit, wait until the “BUSY” indicator is off (the channel is not in use), and press the PTT (Push-To-Talk) switch on the side of the microphone (the “TX” lamp will glow red). While holding in the PTT switch, speak across the face of the microphone in a clear, normal voice level, and then release the PTT switch to receive. Automatic Time-Out Timer If the selected channel has been programmed for automatic time-out, you must limit the length of each transmission. While transmitting, a beep will sound five seconds before time-out. Another beep will sound just before the deadline; the “TX” indicator will disappear and transmission will cease soon thereafter. To resume transmitting, you must release the PTT and wait for the “penalty timer” to expire (if you press the PTT before this timer expires, the timer restarts, and you will have to wait another “penalty” period). Scanning Operation With the microphone in its hanger, press the SCAN button momentarily to activate scanning. Typically, “DSC” will initially appear on the display, indicating Dealer Channel Scan as the scanning mode. If you wish to change to one of the modes described in the list above, press the SEL button repeatedly until that mode appears on the display. If you pick …

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Circuit Description Reception and transmission are switched by “RX” and ” TX” lines from the microprocessor unit (MPU). The receiver uses double-conversion superheterodyne circuitry, with a 43.95MHz 1st IF and 450 kHz 2nd IF. The 1st LO, produced by a PLL synthesizer, yields the 43.95MHz 1st IF. The 2nd LO uses a 43.5 MHz (43.95 MHz-450 kHz) signal generated by a crystal oscillator. The 2nd mixer and other circuits use a custom IC to convert and amplify the 2nd IF, and detect FM to obtain demodulated signals. During transmit, the PLL synthesizer oscillates at the desired frequency directly, for amplification to obtain RF power output. During transmit, voice modulation and CTCSS (or DCS) modulation are applied to this synthesizer. Transceiver functions, such as TX/RX control, PLL synthesizer settings, and channel programming, are controlled using the MPU. VHF Receive r Incoming RF signals from the antenna connector are delivered to the MAIN Unit, and pass through a low-pass filter (LPF) antenna switching network consisting of coils L1001, L1002, L1003 and L1006, capacitors C1001,C1006, C1009, C1013, and C1023, and antenna switching diodes D1006,D1007 and D1008 for delivery to the receiver front end. Signals within the frequency range of the transceiver are then passed through a varactor-tuned bandpass filter consisting of L1008, L1009 / L1024, L1025 before RF amplification by Q1012 (3SK228). The amplified RF is then band-pass filtered again by varactor-tuned resonators L1018, L1019 / L1038, L1039 to ensure pure in-band input to 1st mixer Q1025(2SK228). Buffered output from the VCO Unit is amplified by Q1021 (2SC5107) and low-pass filtered by L1042 / L1046 and C1132 / C1139 / C1142, to provide a pure 1st local signal between 112.3 and 152.3 MHz to the 1st mixer. The 43.95MHz 1st mixer product then passes through dual monolithic crystal filters XF1001 and XF1002 (7.5 kHz BW), and is amplified by Q1029 (2SC4215Y) and delivered to the input of the FM IF subsystem IC Q1026 (TA31136FN). This IC contains the 2nd mixer, 2nd local oscillator, limiter amplifier, FM detector, noise amplifier, and squelch gates. The 2nd LO in the IF-IC is produced from crystal X1001 (14.500MHz), and the 1st IF is converted to 450kHz by the 2nd mixer and stripped of unwanted components by ceramic filter CF1001 or CF1002. After passing through a limiter amplifier, the signal is demodulated by the FM detector. Demodulated receive audio from the IF-IC is amplified by Q1031 (2SA1602A) / Q2014 (CXA1846N). After volume adjustment by the AF power amplifier Q2029 (TDA7240AV), the audio signal is passed to the optional headphone jack or 4-ohm loudspeaker. PLL synthesizer The 1st LO maintains stability from the PLL synthesizer by using a 14.500 MHz reference signal from crystal X1001. PLL synthesizer IC Q1024 (SA7025DK) consists of a prescaler, reference counter, swallow counter, programmable counter, a serial data input port to set these counters based on the external data, a phase comparator, and charge pump. The PLL-IC divides the 14.500 MHz reference signal by 725 using the reference counter (20.0 kHz comparison frequency). The phase detector comparison frequency to be eight times the channel spacing (2.5kHz). The VCO output is divided by the prescaler, swallow counter and programmable counter. These two signals are compared by the phase comparator and input to the charge pump. A voltage proportional to their phase difference is delivered to the low-pass filter circuit, then fed back to the VCO as a voltage with phase error, controlling and stabilizing the oscillating frequency. This synthesizer also operates as a modulator during transmit. The RX-VCO is comprised of Q1015 (2SK520) and D1017, D1018, D1035, D1036 (HVU356x4), and oscillates between 177.950MHz and 217.950MHz according to the programmed receiving frequency. And the TX-VCO is comprised of Q1014 (2SC5107) and D1015, D1016, D1019 (1SV276x3), and oscillates between 134.000MHz and 174.000MHz according to the programmed transmit frequency. The VCO output passes through buffer amplifier Q1018 (2SC5107), and a portion is fed to the buffer amplifier Q1019 (2SC5107) of the PLL IC, and at the same time amplified by Q1021 (2SC5107) to obtain stable output. The VCO DC supply is regulated by Q1008 (2SC4154E). Synthesizer output is fed to the 1st mixer by diode switch D1024 (1SS321) during receive, and to drive amplifier Q1020/Q1022 (2SC5415Ex2) for transmit. The reference oscillator feeds the PLL synthesizer, and is composed of crystal X1001 (14.500 MHz), the temperature compensation circuit which includes D1033 (MC2850) and thermostats TH1003 and TH1002, and transmit (DCS) modulation circuit D1029 (1SV2309). Transmitter Voice audio from the microphone is delivered via the Mic (Jack) Unit to the MAIN Unit, after passing through amplifier Q3039/Q2108 (NJM2902V), pre-emphasis, limiter (IDC instantaneous deviation control) ,and LPF Q2001 (NJM2902V), is adjusted for optimum deviation level and delivered to the next stage. Voice input from the microphone and CTCSS are FM- modulated to the VCO of the synthesizer, while DCS audio is modulated by the reference frequency oscillator of the synthesizer. Synthesizer output, after passing through diode switch D1024 (1SS321), is amplified by driver Q1020 / Q1022 (2SC5415Ex2) and power module Q1013 (M67746) to obtain full RF output. The RF energy then passes through antenna switch D1007 / D1008 and a low-pass filter circuit and finally to the antenna connector. RF output power from the final amplifier is sampled by CM coupler and is rectified by D1011, D1014 (HSM88ASx2). The resulting DC is fed through Automatic Power Controller Q1007 (NJM2904V), Q1001 (2SC4154E), Q1002 (2SB1143S) to transmitter RF amplifier and thus the power output. Generation of spurious products by the transmitter is minimized by the fundamental carrier frequency being equal to the final transmitting frequency, modulated directly in the transmit VCO. Additional harmoni…

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Alignment The VX-4000 has been carefully aligned at the factory for the specified performance across the frequency range specified for each version. Realignment should therefore not be necessary except in the event of a component failure, or alteration of version. All component replacement and service should be performed only by an authorized Yaesu representative, or the warranty policy may be voided. The following procedures cover the sometimes critical and tedious adjustments that are not normally required once the transceiver has left the factory. However, if damage occurs and some parts are replaced, realignment may be required. If a sudden problem occurs during normal operation, it is likely due to component failure; realignment should not be done until after the faulty component has been replaced. We recommend that servicing be performed only by authorized Yaesu service technicians who are experienced with the circuitry and fully equipped for repair and alignment. Therefore, if a fault is suspected, contact the dealer from whom the transceiver was purchased for instructions regarding repair. Authorized Yaesu service technicians realign all circuits and make complete performance checks to ensure compliance with factory specifications after replacing any faulty components. Those who do undertake any of the following alignments are cautioned to proceed at their own risk. Problems caused by unauthorized attempts at realignment are not covered by the warranty policy. Also, Yaesu must reserve the right to change circuits and alignment procedures in the interest of improved performance, without notifying owners. Under no circumstances should any alignment be attempted unless the normal function and operation of the transceiver are clearly understood, the cause of the malfunction has been clearly pinpointed and any faulty components replaced, and the need for realignment determined to be absolutely necessary. The following test equipment (and thorough familiarity with its correct use) is necessary for complete realignment. Correction of problems caused by misalignment resulting from use of improper test equipment is not covered under the warranty policy. While most steps do not require all of the equipment listed, the interactions of some adjustments may require that more complex adjustments be performed afterwards. Do not attempt to perform only a single step unless it is clearly isolated electrically from all other steps. Have all test equipment ready before beginning, and follow all of the steps in a section in the order presented. Required Test Equipment RF signal generator: calibrated output level at 1000 MHz (0 dBμ =1.0 μV - closed circuit) Deviation Meter (linear detector) AF Millivoltmeter SINAD Meter Inline Wattmeter with 5% accuracy at 1000 MHz Regulated DC Power Supply: adjustable from 10 to 17 VDC, 15A 50-ohm Non-reactive Dummy Load: 100W at 1000 MHz Frequency Counter: >0.1 ppm accuracy at 1000 MHz AF Signal Generator DC Voltmeter: high impedance RF Sampling Coupler(attenuation pad) AF Dummy Load: 4 ohm, 20W Oscilloscope Spectrum Analyzer IBM PC/compatible computer w/Yaesu CT-71 programming cable and CE-35 channel programming editor. 50-ohms RF Signal Dummy load Generator RF Sampling Inline Wattmeter Coupler Transceiver Deviation Meter CT-70 CT-29 Connection Frequency Cable Power Supply Counter IBM PC 13.8V DC COM port Alignment Preparation & Precautions A dummy load and inline wattmeter must be connected to the main antenna jack in all procedures that call for transmission, except where specified otherwise. Correct alignment is not possible with an antenna. After completing one step, read the following step to determine whether the same test equipment will be required. If not, remove the test equipment (except dummy load and wattmeter, if connected) before proceeding. Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant between 20 and 30°C (68 86F). When the transceiver is brought into the shop from hot or cold air it should be allowed some time for thermal equalization with the environment before alignment. If possible, alignments should be made with oscillator shields and circuit boards firmly affixed in place. Also, the test equipment must be thoroughly warmed up before beginning. Before beginning, connect the transceiver and PC using the CT-71 programming cable as described in the EEPROM Programming chapter, and download the EEPROM data from the transceiver to the computer. Store this data in a disk file so that it can be saved and retrieved later. Using the table below, program the channel, CTCSS, and DCS alignment settings for your transceiver version. Upload this file to the transceiver. Note: Signal levels in dB referred to in this procedure are based on 0 dBm = 0.5 mV (closed circuit). Caution: Do not connect this line to ground, and be certain that the speaker has adequate capability to handle the audio output from the radio. Because of the bridge audio amplifier circuit used in the radio, it is necessary to construct and use a simple audio load test adapter as shown in the schematic diagram above, when conducting receiver alignment steps. 3.5mm PLUG Attenuated Test Output(1/2) 2ohms 10W Ground + 470uF 2ohms 10W AF Test Adapter Schematic Alignment Channel Frequencies VHF TYPE A ChannelFrequency (simplex) CTCSS Encode DCS Encode Narrow /wide CH1134.01MHzNoneNoneWide CH2147.01MHzNoneNoneWide CH3159.99MHzNoneNoneWide CH4134.01MHzNoneNoneNarrow CH5147.01MHzNoneNoneNarrow CH6159.99MHzNoneNoneNarrow CH7147.01MHz151.4HzNoneWide CH8147.01MHzNone023Wide CH9147.01MHz151.4HzNoneNarrow CH10147.01MHzNone023Narrow VHF TYPE C ChannelFrequency (simplex) CTCSS Encode DCS Encode Narrow /wide CH1148.01MHzNoneNoneWide CH2161.01MHzNoneNoneWide CH3173.99MHzNoneNoneWide CH4148.01MHzNoneNoneNarrow CH5161.01MHzNoneNoneNarrow CH6173.99MHzNoneNoneNarrow CH7161.01MHz151.4HzNoneWide CH8161.01…

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FCC ID: K66VX-4000U-2E MFA p0070017, d0070084 Date: September 15, 2000 Federal Communications Commission Via: TCB Attention: Authorization & Evaluation Division Applicant: Yaesu Musen Co., Ltd. Equipment: VX-4000UA FCC ID: K66VX-4000U-2E FCC Rules: 47 CFR 1.1307, Environmental Assessment Gentlemen: On behalf of the Applicant, enclosed please find the Supplemental Test Data Report, the whole for Environmental Assessment (MPE) of the referenced equipment as shown. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, Morton Flom, P. Eng. enclosure(s) cc: Applicant MF/cvr FCC ID: K66VX-4000U-2E MFA p0070017, d0070084 Sub-part 1.1307: SUPPLEMENTAL REPORT ENVIRONMENTAL ASSESSMENT General Population / Uncontrolled Exposure, Maximum Permissible Exposure EQUIPMENT IDENTIFICATION Yaesu Musen Co., Ltd. FCC ID: K66VX-4000U-2E DATE OF REPORT September 15, 2000 SUPERVISED BY: Morton Flom, P. Eng. FCC ID: K66VX-4000U-2E MFA p0070017, d0070084 TABLE OF CONTENTS RULEDESCRIPTIONPAGE . Test Report 1 . Identification of the Equipment Under Test 2 . Standard Test Conditions and Engineering Practices 4 1.1310 Environmental Assessment 5 FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.1of7. Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) TEST REPORT (SUPPLEMENTAL) b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d0070084 d) Client: Yaesu U.S.A. 17210 Edwards Rd. Cerritos, CA 90703 e) Identification: VX-4000UA FCC ID: K66VX-4000U-2E Description: UHF FM Mobile Transceiver f) EUT Condition: Not required unless specified in individual tests. g) Report Date: September 15, 2000 EUT Received: July 20, 2000 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: Morton Flom, P. Eng. n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.2of7. IDENTIFICATION OF THE EQUIPMENT UNDER TEST (EUT) NAME AND ADDRESS OF APPLICANT: Yaesu Musen Co., Ltd. 4-8-8 Nakameguro, Meguro-Ku Tokyo 153-8644 Japan MANUFACTURER: Applicant FCC ID: K66VX-4000U-2E MODEL NO: VX-4000UA DESCRIPTION: UHF FM Mobile Transceiver TYPE OF EMISSION: 16K0F3E, 11K0F3E FREQUENCY RANGE, MHz: 400 to 430 POWER RATING, Watts: 5 to 40 Switchable x Variable N/A MODULATION: AMPS TDMA CDMA x F3E ANTENNA: HELICAL MONOPOLE x WHIP NOTE: For RF Safety test antenna gain taken at the upper range of expected gain (i.e. 0 dB) and RF Power set to nominal. FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.3of7. M. Flom Associates, Inc. is accredited by the American Association for Laboratory Association (A2LA) as shown in the scope below. "This laboratory is accredited by the American Association for Laboratory Accreditation (A2LA) and the results shown in this report have been determined in accordance with the laboratory's terms of accreditation unless stated otherwise in the report." Should this report contain any data for tests for which we are not accredited, or which have been undertaken by a subcontractor that is not A2LA accredited, such data would not covered by this laboratory's A2LA accreditation. FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.4of7. STANDARD TEST CONDITIONS and ENGINEERING PRACTICES Except as noted herein, the following conditions and procedures were observed during the testing: In accordance with ANSI C63.4-1992, section 6.1.9, and unless otherwise indicated in the specific measurement results, the ambient temperature of the actual EUT was maintained within the range of 10° to 40°C (50°to 104°F) unless the particular equipment requirements specify testing over a different temperature range. Also, unless otherwise indicated, the humidity levels were in the range of 10% to 90% relative humidity. Prior to testing, the EUT was tuned up in accordance with the manufacturer's alignment procedures. All external gain controls were maintained at the position of maximum and/or optimum gain throughout the testing. Measurement results, unless otherwise noted, are worst case measurements. FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.5of7. Name of test:Environmental Assessment Specification:FCC: 47 CFR 1.1310 Measurement Guide:ANSI/IEEE C95.1 1992 Test Equipment:Maximum Permissible Exposure (MPE) measurement system, consisting of: Narda 8717-1174R, Radiation meter Narda 8761D, E-field probe (300 kHz – 3 GHz) (Calibrated Nov-98) Measurement Procedure: 1. The following measurements were performed with a Narda probe using ANSI/IEEE C95.1 as a guide. 2. Prior to making any measurements, the measurements system was calibrated in accordance with the manufacturer’s procedures. 3. The EUT’s radiating element (antenna) was placed ona1mtall table for ease of testing. For equipment normally operated on a metal surface, a ground plane was used. 4. The remaining equipment necessary to operate the EUT was maintained at a distance from the measurement arrangement suitable to minimize interference with the measurements. 5. The minimum safe distance was calculated from the formula Power Density = EIRP / 4πR 2 (Peak Watts/m 2 ). The calculation is shown with the measurement data. 6. With the EUT operating at maximum power, a search was initiated for worst case emissions with the probe raised and lowered over a range of 0.2 to 2 meters in height and over a horizontal plane of 0 o to 360 o . 7. Average values were calculated for the whole body (0.2-2.0m), lower body (0.2-0.8m) and upper body (1.0-2.0m). Results: Attached. FCC ID: K66VX-4000U-2 MFA p0070017, d0070084 PAGE NO.6of7. TEST SETUP: Maximum Permissible Exposure (MPE) g0070629: 2000-J…

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FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 Date: September 15, 2000 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Yaesu Musen Co., Ltd. Equipment: VX-4000UA FCC ID: K66VX-4000U-2E FCC Rules: 90 Gentlemen: On behalf of the Applicant, enclosed please find Application Form 731, Engineering Test Report and all pertinent documentation, the whole for approval of the referenced equipment as shown. Filing fees are attached. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, Morton Flom, P. Eng. enclosure(s) cc: Applicant MF/cvr FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 LIST OF EXHIBITS (FCCCERTIFICATION(TRANSMITTERS) - REVISED 9/28/98) APPLICANT: Yaesu Musen Co., Ltd. FCC ID: K66VX-4000U-2E BY APPLICANT: 1. LETTER OF AUTHORIZATION 2. IDENTIFICATION DRAWINGS, 2.1033(c)(11) LABEL LOCATION OF LABEL COMPLIANCE STATEMENT LOCATION OF COMPLIANCE STATEMENT 3. PHOTOGRAPHS, 2.1033(c)(12) 4. DOCUMENTATION: 2.1033(c) (3) USER MANUAL (9) TUNE UP INFO (10) SCHEMATIC DIAGRAM (10) CIRCUIT DESCRIPTION BLOCK DIAGRAM PARTS LIST ACTIVE DEVICES 5. PART 90.203(e) & (g) ATTESTATION BY M.F.A. INC. A. TESTIMONIAL & STATEMENT OF CERTIFICATION B. STATEMENT OF QUALIFICATIONS FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 Sub-part 2.1033(c): EQUIPMENT IDENTIFICATION FCC ID: K66VX-4000U-2E NAMEPLATE DRAWING ATTACHED, EXHIBIT 1. LOCATION AS PER LABEL DRAWING(S) DATE OF REPORT September 15, 2000 SUPERVISED BY: Morton Flom, P. Eng. FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 THE APPLICANT HAS BEEN CAUTIONED AS TO THE FOLLOWING: 15.21 INFORMATION TO USER. The users manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.27(a) SPECIAL ACCESSORIES. Equipment marketed to a consumer must be capable of complying with the necessary regulations in the configuration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer, without additional charge. Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such devices shall include appropriate instructions on the first page of text concerned with the installation of the device that these special accessories must be used with the device. It is the responsibility of the user to use the needed special accessories supplied with the equipment. FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 TABLE OF CONTENTS RULEDESCRIPTIONPAGE . Test Report 1 2.1033(c) General Information Required 2 2.1033(c)(14) Rule Summary 5 . Standard Test Conditions and Engineering Practices 6 2.1046(a) Carrier Output Power (Conducted) 7 2.1051 Unwanted Emissions (Transmitter Conducted) 9 2.1053(a) Field Strength of Spurious Radiation 13 2.1049(c)(1) Emission Masks (Occupied Bandwidth) 16 90.214 Transient Frequency Behavior 23 2.1047(a) Audio Low Pass Filter (Voice Input) 33 2.1047(a) Audio Frequency Response 36 2.1047(b) Modulation Limiting 38 2.1055(a)(1) Frequency Stability (Temperature Variation) 41 2.1055(b)(1) Frequency Stability (Voltage Variation) 44 2.202(g) Necessary Bandwidth and Emission Bandwidth 45 FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 PAGE NO.1of45. Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) TEST REPORT b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85224 c) Report Number: d0070083 d) Client: Yaesu U.S.A. 17210 Edwards Rd. Cerritos, CA 90703 e) Identification: VX-4000UA FCC ID: K66VX-4000U-2E Description: UHF FM Mobile Transceiver f) EUT Condition: Not required unless specified in individual tests. g) Report Date: September 15, 2000 EUT Received: July 20, 2000 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: Morton Flom, P. Eng. n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 PAGE NO.2of45. LIST OF GENERAL INFORMATION REQUIRED FOR CERTIFICATION IN ACCORDANCE WITH FCC RULES AND REGULATIONS, VOLUME II, PART 2 AND TO 90 Sub-part 2.1033 (c)(1): NAME AND ADDRESS OF APPLICANT: Yaesu Musen Co., Ltd. 4-8-8 Nakameguro, Meguro-Ku Tokyo 153-8644 Japan MANUFACTURER: Yaesu Musen Co., Ltd. 4-8-8 Nakameguro, Meguro-Ku Tokyo 153-8644 Japan (c)(2): FCC ID: K66VX-4000U-2E MODEL NO: VX-4000UA (c)(3): INSTRUCTION MANUAL(S): PLEASE SEE ATTACHED EXHIBITS (c)(4): TYPE OF EMISSION: 16K0F3E, 11K0F3E (c)(5): FREQUENCY RANGE, MHz : 400 to 430 (c)(6): POWER RATING, Watts: 5 to 40 Switchable x Variable N/A FCC GRANT NOTE: BD - The output power is continuously variable from the value listed in this entry to 10%-15% of the value listed. (c)(7): MAXIMUM POWER RATING, Watts : 300 FCC ID: K66VX-4000U-2E MFA p0070017, d0070083 PAGE NO.3of45. M. Flom Associates, Inc. is accredited by the…

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