AIERIT14-141VHF Portable Transceiver

TYPE OF EXHIBIT:USER MANUAL FCC PART:2.1033 (c) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 5, 2000 Included is an excerpt from a draft of the Maintenance and Operating Manual for RITRON Model JMX-141 VHF- FM Handheld Transceiver. Specifically, this manual includes a technical description of the JMX-141 sufficient to establish compliance with the technical standards of the applicable rule part(s). This includes, but is not limited to, the following items required under FCC Part 2.1033 (c): (2)FCC Identifier. (3)A copy of the installation and operating instructions. (4)Type of emission. (5)Frequency range. (6)Range of operating power. (7)Maximum power rating. JMX-141 SPECIFICATIONS GENERAL FCC ID:AIERIT14-141 FCC Rule Parts:22, 74, 80, 90 Frequency Range:148-161 or 161-174 MHz Max. Freq. Separation:13 MHz RF Channels:Conventional: 4 Channels, Independent TX/RX frequencies. Synthesizer Step Size:5 KHz Frequency Stability:+/-2.5 PPM (-30 to +60 C) TX/RX Tone/Code Signaling:CTCSS (Quiet Call) Power Supply:+7.5 VDC, 700 mAH rechargeable NiCd battery pack standard +7.5 VDC, 1500 mAH rechargeable MiMH battery pack optional Battery Drain: Standby:75 mA Sleep:25 mA Avg. Standby with Power Saver: 45 mA Receive:150 mA Transmit:600 mA @ 1.4 Watt with 7.2 VDC battery Battery Life:Standard battery (700 mAH) @ 90/5/5 Duty Cycle 9 Hrs, Battery Saver On High capacity battery (1500 mAH) @ 90/5/5 Duty Cycle 18 Hrs, Battery Saver On Dimensions:4.75”H x 2.2”W x 1.43”D Weight:11.5 oz. with battery pack Enclosure Material:Lexan Polycarbonate Environmental:Splash resistant and shock and vibration per RITRON Drop Test (6 ft. drop onto concrete on all six sides) Antenna Fitting:1/4" - 32 x 1/4" threaded External RF Test Jack:Antenna connector with RITRON 141-SRVBD test device JMX-141 SPECIFICATIONS GENERAL Earphone Jack:3.5 mm, disconnects the internal speaker for external earphone, speaker / microphone, or headset. Also provides cable connection for PC programming. Microphone/PTT/Chg Jack:2.5 mm, for external speaker/microphone, headset or RITRON model BC-A wall charger Push Button Controls:On/Volume Up Volume Down/Off PTT Channel Speaker Beep Indicators: On/Volume UPMultiple beeps indicating radio channel when radio is turned on, followed by increasing audio to adjust volume. Volume Down/OffDecreasing audio to adjust volume, with single tone when unit is turned off. Both Volume ButtonsAlternates between Tone Squelch (single beep) and Carrier Squelch (two beeps). If both buttons are held down until the radio beeps repeatedly, squelch will be disabled. ChannelNumber of beeps indicates channel. RECEIVER Specifications Wide band Narrow band Modulation Acceptance:+/- 7.0 KHz+/- 3.75 KHz Sensitivity (12 dB SINAD):0.22 μV (.17 typical)0.22 uV (.18 typical) Adjacent Channel (EIA):-60 dB (-70 typical)-50 dB (-60 typical) Spurious Rejection:-60 dB-60 dB Image Rejection (EIA):-60 dB-60 dB Intermodulation (EIA):-56 dB-57 dB Noise Squelch Sensitivity:Manually adjustable, factory set for 12 dB SINAD Frequency Response:300 - 3000 Hz, de-emphasized Audio Output1 Watt into 8 Ω, with less than 5 % THD @ the earphone jack Receiving System:Dual conversion superheterodyne I.F. System:1st - 43.65 MHz 2nd - 450 KHz L.O. Injection:High side JMX-141 SPECIFICATIONS TRANSMITTER RF Power Output:1 Watts minimum @ +7.2 VDC 1.4 Watts typical @ 7.2 VDC Wide ModeNarrow Mode Emission Designator:20K0F3E11K25F3E Deviation:+/- 5.00 KHz+/- 2.50 KHz FM Hum and Noise:-50 dB-44 dB Audio Distortion:< 8 %< 6 % Spurious and Harmonics:-50 dBc Audio Response:Meets FCC and EIA requirements Time-out Timer:60 seconds INTRODUCTION GENERAL RITRON's JMX_141 handheld is a small, programmable two-way radio, designed to operate over one of two sub- bands. The low split covers 148-161 MHz and the high covers 161-174 MHz. This handheld features push-button operating controls, with the Push-To-Talk and Channel buttons on one side of the radio. The On / Volume Up and Volume Down / Off, volume and monitor controls are on top. Each radio can be “dealer or factory” programmed to contain a unique set of operating frequencies and options. Separate RX and TX Quiet Call (CTCSS) tones can be programmed per channel. Transmitter deviation can be programmed on a per channel basis. Inspection Each radio package should include a radio, antenna, rechargeable battery pack, belt clip and any optional accessories ordered. Examine the equipment immediately after delivery and report any damages to your shipping company. Model Identification The JMX-141 model, serial number and FCC Identification are displayed on a label located on the back of the radio beneath the belt clip. FCC REGULATIONS Licensing The FCC requires the radio owner to obtain a station license for his radios before using them to transmit, but does not require an operating license or permit. The station licensee is responsible for ensuring that transmitter power; frequency and deviation are within the limits specified by the station license. The station licensee is also responsible for proper operation and maintenance of the radio equipment. This includes checking the transmitter frequency and deviation periodically, using appropriate methods. Safety Standards The FCC (with its action in General Docket 79-144, March 13, 1985) has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment. RITRON follows these safety standards, and recommends that you observe the following guidelines: •DO NOT hold the radio such that the antenna is very close to or touching exposed parts of the body, especially the face or eyes, while transmitting. Keep the radio vertical, two to three inches away while talking into the microphone. •DO NOT press the Push-To-Talk except when you intend to transmit. •DO NOT operate radio equipment near electrical blasting caps or in an explos…

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******************************************************************************************************************** Attestation Statements ******************************************************************************************************************** MANUFACTURER :RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: July 23, 2000 The following is a list of attached exhibits required by the Federal Communications Commission for the application to and grant of FCC Type Acceptance. Manufacturer’s Statement ............................................. 2.1033 JMX-141 Occupied Bandwidth and Power Characteristics ... 2.1046 & 2.1049 (c)(1) Statement of Certifying Engineer .................................... 2.947 List of Test Equipment Used ............................................. 2.947 (d) Description of Measurement Facility ...................................... 2.948 TYPE OF EXHIBIT :MANUFACTURER’S STATEMENT FCC PART :2.1033 (c)(1-2) MANUFACTURER :RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: June 29, 2000 The AIERIT14-141 is a 148-161 MHz or 161-174 MHz VHF-FM Handheld Transceiver to be manufactured and marketed in the United States of America by the applicant, RITRON, Inc. of Carmel, Indiana. The AIERIT14-141 will be marketed by RITRON, Inc. as a model JMX-141. The FCC designator for this unit is ......................... FCC ID: AIERIT14-141 RITRON, Inc. will be manufacturing and marketing the AIERIT14-141 handheld transceiver on a continuing basis. STATEMENT :OCCUPIED BANDWIDTH AND OUTPUT POWER FCC PART :2.1046 & 2.1049 MANUFACTURER :RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: July 23, 2000 The JMX-141 is capable of supporting wide band voice modulation (20K0F3E) or narrow band voice modulation on a 12.5 kHz channel (11K25F3E). Power output ranges from 1 to 2 watts. The JMX-141 is also capable of supporting a minimum of 4800 bits per second per 6.25 kHz of channel bandwidth on a narrow band 12.5 kHz channel (11K25F1D and 11K25F2D) per (90.203 (j)(3). Power output ranges from 1 to 2 watts. TYPE OF EXHIBIT :STATEMENT OF CERTIFYING ENGINEER FCC PART :2.947 MANUFACTURER :RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: June 29, 2000 I, Dennis Zimmerman have been working in the Engineering Department since October 1997 as a radio frequency Project Engineer. I have designed two way radios for the last 14 years. I received a Bachelor’s degree in Electrical Engineering from the University of Cincinnati in June 1977. I hereby certify that all measurements and date herein were taken by me, that they were obtained using sound and accepted engineering principles, and that they accurately reflect the performance and characteristics of the units tested. Signed: Dennis Zimmerman – Project Engineer TYPE OF EXHIBIT: TEST EQUIPMENT LIST FCC PART: 2.947 (d) MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: June 29, 2000 The measured data in this report was obtained using one or more of the following pieces of equipment. The particular equipment used in any one test is detailed in the procedure for that test. ITEMMANUFACTURER MODEL NO.SERIAL NO. Communications Test Set Hewlett-PackardHP8920A3352A03633 Communications Test Set IFRCOM120B500008863 Spectrum AnalyzerHewlett-Packard8559A2010A 06979 Power SupplyBK/Precision 1730263-023610 Digital OscilloscopePhilipsPM-3335DM630034 Dual Display MultimeterProtek506 Dipole AntennaElectro-MetricsBDA-258-101 Log Periodic AntennaElectro-MetricsLP-258-102 Microwave Test Antenna PolaradCA-B11-3 Temperature ChamberAssociated LaboratoriesELH-0.5-LCN/A ThermocoupleOmega 7035-J-2258504 10dB Attenuator50F-010N/A 20dB AttenuatorTenuline8340-2001544 30dB AttenuatorBird8306-NN/A RF DetectorMicrolabs/FXRXA-1040N/A TYPE OF EXHIBIT :DESCRIPTION OF MEASUREMENT FACILITY FCC PART :2.948 MANUFACTURER :RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL :JMX-141 TYPE OF UNIT :VHF-FM Handheld Transceiver FCC ID: AIERIT14-141 DATE: June 29, 2000 The Field Strength measurements filed with this application were made on a site certified by RITRON, Inc. Data pertaining to this site is on file with the FCC and is current. This site is used exclusively by RITRON, Inc. and is utilized only for the RF Field Strength Measurements of equipment designed and manufactured by RITRON, Inc. It is NOT used for measurements by or for any other party on a contract basis or otherwise.

TYPE OF EXHIBIT:EXTERNAL PHOTOGRAPHS FCC PART:2.1033 (c)(12) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 10, 2000 Included in this exhibit are photographs of the RITRON Model JMX-141 VHF-FM Handheld Transceiver case assembly. Additional photographs of the equipment of sufficient clarity to reveal internal construction and define component placement are included with this Certification request as a separate exhibit. Signed: Dennis Zimmerman - Project Engineer

1 TYPE OF EXHIBIT:FCC DATA LABEL FCC PART:2.1033 (c)(11) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 10, 2000 The following drawing specifies the FCC Label for the JMX-141. The label is placed on the JMX-141 case back into a recessed area molded into the case back. A photograph is included to indicate the position of the label on the case back. Each serial number is recorded along with the date of manufacture and is kept on file at RITRON, Inc. The FCC data label will be made of a “tamper proof” destructive, .002” thick silver mylar material laminated to .003” Lexan film with Hi-Tack adhesive backing. The label background will be black with all graphics in silver. The area containing the FCC ID designator will be silver with black graphics. A 2nd small label of the same material will contain the manufacture date. Serialization will begin with the serial number A1234. The combined size of the serial label and manufacturing date label is 2.979” x 0.980”. Signed: Dennis Zimmerman - Project Engineer 2 TOLERANCES(EXCEPT AS NOTED) DECIMAL FRACTIONAL ANGULAR REVISIONS NO. DATE BY 1 234 5 DRAWN BYCHK'D TRACED SCALEDATE APP'D MATERIALDRAWING NO. RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 2 : 1 7/7/00 MAP JMX-141 FCC / MODEL LABEL 14200095 L C 1.95" .980" 5.525"2.760" 2.745" 1.38" L C FRONT VIEW (scale 2:1) VIEW A - ART WORK REGISTRATION (scale 1:1) YY X X SIDE VIEW (scale 2:1) GRAPHICS TO BE SUB-SURFACE, PRINTED ON MATTE SIDE FCC ID: AIERIT14-141 FREQ: 148-161 MADE IN THE U.S.A. BY RITRON, INC. PH: 317-846-1201 MODEL: JMX-141 SN: AREA FOR SERIAL NUMBER VELVET SIDE MATTE SIDE (+.000 -.020) (+.000 -.020) .062 R 2 PLC X X YY "FCC ID: AIERIT14-141" AND "FREQ: 148-161" Black characters, bold helvetica type style (font), 5 point type size, aligned left in silver box. A llow space between box border and text as shown. "FOR BEST PERFORMANCE . . OF SERVICE" S ilver characters, helvetica type style, 5 point type size, centered horizontally in the right half of the label as shown. "OPERATING INSTRUCTIONS . . . HOLD FOR OFF" S ilver characters, bold helvetica type style, 3 point type size, aligned left in the box. A llow space between box border and text as shown. "MADE IN THE USA BY RITRON, INC." and PHONE/MODEL numbers are silver characters, bold helvetica type style, 5 point type size. Align left as shown. "SN" is silver characters, bold helvetica type style, 5 point type size. A lign as shown . TYPE SPECIFICATIONS: 1.2.3. 4.5. MATERIAL - .010 thick clear lexan film (#8B 35) with velvet/matte finish. ADHESIVE - Part to have .002 thick "tamper proof" destructive adhesive ( Scotch #467 or Engineering approved equivalent) with an easy to remove liner. GRAPHICS - To be subsurface printed on the matte side. To be per Ritron art work definition (see type specifications at left). To be registered to the part edge as shown in View A. The area designated for the SERIAL NUMBER will be silver, and is 0.55" x 0.14". Serial number characters are black, 8 point type size. Serial number to be centered within the silver area. NUMBER SERIALIZATION to use hot stamp process on .0015" silver compucal material with bold black print. JOBCOM JMX Logo provided on stat sheet. Logo dimensions are 0.805" x 0.23", represented in V iew A by the box outline. (B ox is for sizing only and will not appear.) Logo is silver. Center the logo horizontally, in the left half of the label as sh own. NOTES: 1. 2. 3.4. 5. A 1234 .062 R 2 PLC FOR BEST PERFORMANCE REPLACE BATERY PACK AFTER A MAXIMUM OF 18 MONTHS OF SERVICE. OPERATING INSTRUCTIONS - PRESS FOR ON . . . HOLD FOR VOLUME UP PRESS FOR VOLUME DOWN . . . HOLD FOR OFF FOR BEST PERFORMANCE REPLACE BATERY PACK AFTER A MAXIMUM OF 18 MONTHS OF SERVICE. MADE IN THE U.S.A. BY RITRON, INC. PH: 317-846-1201 MODEL: JMX-141 SN: JOBCOM JMX LOGO HERE FCC ID: AIERIT14--141 FREQ: 148-161OPERATING INSTRUCTIONS - PRESS FOR ON . . . HOLD FOR VOLUME UP PRESS FOR VOLUME DOWN . . . HOLD FOR OFF JOBCOM JMX LOGO HERE 6. www.ritron.com .050 BORDER ALL AROUND (+/- .010) A 1234 www.ritron.com 3 TOLERANCES(EXCEPT AS NOTED) DECIMAL FRACTIONAL ANGULAR REVISIONS NO. DATE BY 1 2 34 5 DRAWN BYCHK'DTRACED SCALEDATEAPP'D MATERIALDRAWING NO. RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 2 : 1 06/21/95 DHD SST/JMX FCC LABEL - MFG DATE 14200037 "MFG DATE" will be silver characters, bold helvetica type style, 5 point type size. Align left as shown. TYPE SPECIFICATIONS: MATERIAL - .002 thick silver mylar, laminated to .003 thick Lexan film (#8B35) with velvet/matte finish. ADHESIVE - Part to have .002 thick adhesive (Scotch #9471 or engineering approved equivalent) with an easy to remove liner. GRAPHICS - To be per Ritron art work definition. To be registered to the part edge as shown in view A. Background color to be black. The area designated for the date will be silver, and is 0.385" X 0.13". Characters will be 8 point type size. Date to be centered within the silver area. Date to use hot stamp process on .002" silver mylar material with bold black print. NOTES: 1. 2.3.4.5. FRONT VIEW (scale 2:1) YY X AREA FOR DATE .062 R 2 PLC X 1.95" .980" (+.000 -.020) 0.4" .200" (+/-.010) 06/95 MFG DATE: VIEW A - ART WORK REGISTRATION (scale 1:1) .050 (+/- .010) .020 (+/- .010) MFG DATE: 06/95 .050 (+/- .010)

TYPE OF EXHIBIT:INTERNAL PHOTOGRAPHS FCC PART:2.1033 (c)(12) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 10, 2000 Included in this exhibit are photographs of the RITRON Model JMX-141 VHF-FM Handheld Transceiver printed circuit board assembly. Additional photographs of the equipment of sufficient clarity to reveal equipment construction and layout, labels for controls and meters, and chassis assembly are included with this Certification request as a separate exhibit. Signed: Dennis Zimmerman - Project Engineer

TABLE OF CONTENTS SECTIONTOPIC PAGE 1.JMX-141 SPECIFICATIONS GENERAL4 RECEIVER5 TRANSMITTER6 2.INTRODUCTION GENERAL7 Inspection7 Model Identification7 FCC REGULATIONS Licensing7 Safety Standards7 3.BATTERY CARE CHARGING8 BATTERY REPLACEMENT9 PRECAUTIONS9 4.DESCRIPTION OF CONTROLS AND CONNECTORS10 Fig. 2 Controls and Connectors11 Belt Clip Installation11 5.OPERATION On-Off/Volume12 Receive12 Monitor12 Selective Signaling Squelch12 Battery Saver12 Transmit13 Channel Selection13 WHAT THE RADIO TONES MEAN Power On/Self Check “OK13 Error Tones13 Channel Select13 Tone Squelch13 Recharge Battery Alert13 OPTIONAL RADIO TONES Receiver Squelch Tone14 Busy Channel Inhibit14 Transmitter Time Out14 TROUBLESHOOTING General15 Battery15 Error Tones15 Tone Coded Squelch16 6.PROGRAMMING THE RADIO PTT (PUSH-TO-TALK) PROGRAMMING Placing the Radio in PTT Programming Mode17 How To Find Out What Is Already Programmed17 PTT Programming the Radio18 PTT Programming Mistakes18 Return To Normal Operation18 Table 1 – PTT Programming Frequency Table19 2 Table 2 – Quiet Call Codes and Frequencies19 COMPUTER SOFTWARE COPYRIGHTS19 PROGRAMMING THE RADIO USING A PC COMPUTER20 Programmable Features20 Description of Features21 7.SST-444 THEORY OF OPERATION INTRODUCTION22 POWER SUPPLY AND VOLTAGE DISTRIBUTION22 Power Strobe22 Low Battery Voltage Detection22 REFERENCE OSCILLATOR23 SYNTHESIZER 23 Pin Numbers23 Prescaler Divider / Synthesizer Controller23 VCO / Buffer Amplifiers24 Oscillator Modulation24 DIGITAL POTENTIOMETERS24 RECEIVER25 RF Amplifier25 1st Mixer25 FM Receiver Subsystem25 Voice / Tone Conditioning in Receiver Mode25 Voice Band26 Sub-Audible26 Audio Amplifier26 ANTENNA SWITCHING / LOW-PASS FILTER26 TRANSMITTER27 Keying27 +VTX Supply27 Power Amplifier27 Voice/Tone Conditioning in Transmit Mode27 Voice Band27 Sub-Audible28 MICROCONTROLLER28 8.JMX-141 ALIGNMENT PROCEDURE RECOMMENDED TEST EQUIPMENT30 RADIO PREPARATION30 REFERENCE FREQUENCY31 MODULATION BALANCE31 TRANSMITTER TONE DEVIATION31 TRANSMITTER VOICE DEVIATION32 TRANSMITTER POWER32 RECEIVER SENSITIVITY AND SQUELCH32 RECEIVER NOISE SQUELCH33 SYNTHESIZER33 9.JMX-141 VOLTAGE CHART Measurement Conditions34 JMX-141 Voltages34 10.JMX-141 SCHEMATIC REFERENCE PARTS LIST40 11.JMX-141 CASE ASSEMBLY PARTS LIST47 12.SCHEMATIC AND PART PLACEMENT DRAWINGS48 3 IMPORTANT MAINTENANCE/REPAIR INFORMATION Surface Mount Repair RITRON surface mount products require special equipment and servicing techniques. Improper servicing techniques can cause permanent damage to the printed circuit boards and/or components, which is not covered by RITRON’s warranty. If you are not completely familiar with surface mounted component repair techniques, RITRON recommends that you defer maintenance to qualified service personnel. Precautions for Handling CMOS Devices This radio contains complementary metal-oxide semiconductor (CMOS) devices, which require special handling techniques. CMOS circuits are susceptible to damage by electrostatic or high voltage charges. Damage can be latent, with no failure appearing until weeks or months later. For this reason, take special precautions any time you disassemble the radio. Follow the precautions below, which are even more critical in low humidity environments. 1) Storage/transport - CMOS devices that will be stored or transported must be placed in conductive material so that all exposed leads are shorted together. CMOS devices must not be inserted into conventional plastic “snow” or plastic trays of the type that are used for other semiconductors. 2) Grounding - All CMOS devices must be placed on a grounded bench surface. The technician that will work on the radio/CMOS circuit must be grounded before handling the radio. Normally, the technician wears a conductive wrist strap in series with a 100K Ohm resistor to ground. 3) Clothing - Do not wear nylon clothing while handling CMOS circuits. 4) Power off - Remove power before connecting, removing or soldering a PC board that contains CMOS devices. 5) Power/voltage transients - Do not insert or remove CMOS devices with power applied. Check all power supplies to be used for testing CMOS devices, making sure that no voltage transients are present. 6) Soldering - Use a grounded soldering iron for soldering CMOS circuitry. 7) Lead-straightening tools - When straightening CMOS leads, provide ground straps for the tool used. PC Board Removal - Special Tool RITRON recommends using a knurled nut tool to remove the slotted knurled nuts that secure the charge and audio jacks on top of the radio. You will need two sizes of this tool, one for each jack size. Mouser Corporation  is one source, stock number 382-0004 (2.5mm jack) and 382-0006 (3.5mm jack). You can reach Mouser sales and distribution center at 1-800-346-6873. Properly Attach the Synthesizer Shield The synthesizer shield should not be removed, unless a component must be replaced. This shield is soldered to the main PC board. Re-assembly - Speaker Magnet, Battery Voltage on Connector Pin The speaker magnet will pick up clipped leads and other small metal objects from your bench top. Even tiny objects on the diaphragm will cause the speaker to buzz. Make sure the speaker is free of foreign objects before reassembling the radio. Radio Transmitter Power Measurements The JMX-141 was designed to produce a minimum of 1 Watts of Transmitter power at nominal battery voltage (+7.2 VDC), throughout the radio’s operating frequency range. Measurements are made with the RITRON 141-SRVBD RF service module connected to the radio antenna terminal. 4 JMX-141 SPECIFICATIONS GENERAL FCC ID:AIERIT14-141 FCC Rule Parts:22, 74, 80, 90 Frequency Range:148-161 or 161-174 MHz Max. Freq. Separation:13 MHz RF Channels:Conventional: 4 Channels, Independent TX/RX frequencies. Synthesizer Step Size:5 KHz Frequency Stability:+/-2.5 PPM (-30 to +60 C) TX/RX Tone/Code Signaling:CTCSS (Quiet Call) Power Supply:+7.5 VDC, 700 mAH rechargeable NiCd battery pack standard +7.5 VDC, 1500 mAH re…

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TYPE OF EXHIBIT:TUNE UP PROCEDURE AND PARTS LIST FCC PART:2.1033 (c)(8, 9) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 5, 2000 Included is an excerpt from the draft of the Maintenance and Operating Manual for RITRON Model JMX-141 VHF- FM Handheld Transceiver. Specifically, this manual includes a technical description of the JMX-141 sufficient to establish compliance with the technical standards of the applicable rule part(s). This includes, but is not limited to, the following items required under FCC Part 2.1033 (c): (2)FCC Identifier (8) DC voltages (9) Tune up procedure - no transmitter RF power tuning needed. JMX-141 ALIGNMENT PROCEDURE An authorized RF service technician must perform test and alignment of the JMX-141. Do not attempt service of the JMX-141 if not completely familiar with frequency synthesized radio operation. The JMX-141 can operate in either Narrow Band (2.5 KHz deviation) or Wide Band (5 KHz deviation) systems. No receiver or transmitter alignment is necessary. Only four manual adjustments are possible. RECOMMENDED TEST EQUIPMENT 1) 0 to +15 VDC, 2A current-limited power supply3) Oscilloscope (to 20 MHz) 2) RF Communications Test Set (to 470 MHz) with:4) VTVM or DMM - FM Deviation Meter - RF Wattmeter5) RITRON PC Programming Kit - Frequency Counter (to 470 MHz) - SINAD Measuring Device6)RITRON 141-SRVBD Test Module RADIO PREPARATION 1) Remove the JMX-141 from the case. See assembly diagram for assistance. 2) Install the RITRON 141-SRVBD test assembly and serial programming cable as follows: a) Remove the JMX-141 antenna from the radio. b) Plug the 141-SRVBD into the 2.5 mm and 3.5 mm jacks on top of the radio. c) Screw the 141-SRVBD antenna nut fully into the JMX-141 antenna connector. d) Set the jumper on the 141-SRVBD assembly to the “VHF” position. e) Connect the serial programming cable from the PC computer (with the RITRON PC programming kit software installed) to the 141-SRVBD test assembly 3) Connect the FM communications test set to the BNC connector on the 141-SRVBD test assembly. 4) Apply power (7.5 VDC) and turn on the radio to place it in operating mode. JMX-141 ALIGNMENT PROCEDURE REFERENCE FREQUENCY 1) Make sure that the unit has been switched on and is at room temperature (approximately +25° C) 2) Set the RF communications test set to the transmit mode. 3) Press the PTT button to transmit 4) Transmitter frequency error should be less than +/- 200 Hz. 5) Adjust the trimmer cap in the rectangular reference frequency oscillator YF301 if not within 4). JMX-141 ALIGNMENT PROCEDURE TRANSMITTER VOICE DEVIATION Transmitter voice deviation has been set at the factory and should not require adjustment. If adjustment is needed perform the following. 1) Set the RF communications test set to the transmit mode. 2) Set audio filtering from <20 Hz to 3kHz. 3) Set to FM demod with +/- peak deviation. 4) Select channel with no CTCSS tone programmed. 5) Connect audio source to 2.5 mm microphone input set to 1 kHz and 100 mV RMS . 6) The JMX-141 should start transmitting when a 2.5 mm microphone cable plug is connected to the audio generator with a DC path to ground. An attenuator pad can be inserted if a DC path to ground is not present in the generator. Adjust generator accordingly. 7) Adjust R237 for peak deviation of 2000+/-50 Hz on narrow band channels or +/-4000+/-100 Hz on wide band. 8) Stop transmitting by disconnecting cable. 9) Check other channels as needed. NOTE: CTCSS tone deviation is automatically set to be within 500 to 1000 Hz after this adjustment on wide band tone enabled channels. Maximum voice and tone deviation on CTCSS wide band channels will then be 4500 to 5000 Hz. Narrow band tone deviation will be 250 to 500 Hz with overall deviation of 2250 to 2500 Hz. RECEIVER SQUELCH LEVEL The JMX-141 receiver is factory tuned for a frequency range of 148-161 or 161-174 MHz. The JMX-141 receiver is configured from the factory for narrow band operation. The 43.650 MHz first IF has a +/-6.0 kHz bandwidth. The 450 kHz second IF has a minimum +/- 4.5 kHz 6 dB bandwidth. With a +/-1.5 ppm reference oscillator the first LO frequency error will be less than 300 Hz. Acceptable wideband deviation (+/-5 kHz) demodulation occurs provided the transmitter has a comparable stability. When a channel is set to narrow band the hardware in the receiver stays the same but the CTCSS decode algorithm compensates for the lower deviation. 1) Select a channel. 2) Adjust squelch pot R131 fully clockwise. 3) Set communications test set generator to yield 12 dB SINAD with +/-1.5 kHz deviation with a 1 kHz tone on desired frequency. 4) Adjust squelch pot R131 fully counter clockwise. 5) Turn R131 slowly clockwise until squelch opens. 6) Reduce generator level until radio squelches. 7) Increase generator level until audio opens. Confirm squelch hysteresis is 2- 4 dB. NOTE: Under +/-3.0 kHz deviation the squelch opening level will be around 2 dB higher. The squelch will open at lower levels in very cold temperatures. If squelch opens with no signal under extremely cold temperatures place JMX-141 inside your coat and warm it up a bit. If continued use in very cold temperatures will be happening adjust squelch slightly higher. SST-444 VOLTAGE CHART Measurement Conditions Supply voltage at 7.5 VDC, radio in operating mode, volume control at minimum, power strobe enabled, transmitter set for full power. IMPORTANT: Because the JMX-141 portable is constructed with grounding sub-planes, use a system ground in the same proximity as the circuit being measured. All readings indicated as GND are true system ground. KEY:All measurements are in VDC unless indicated otherwise. NC=No connection GND =Ground *=Voltage is strobed in Power Saver mode →=See note in right column JMX-141 VOLTAGES DEVICEPIN TransmitReceiveStandbyDESCRIPTION CR10110.10.90.65squelch noise rectifier 2GNDGNDGND 30.150.450.3 C…

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TYPE OF EXHIBIT:SCHEMATIC AND COMPONENT PLACEMENT DRAWINGS FCC PART:2.1033 (c)(10,12) MANUFACTURER:RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL:JMX-141 TYPE OF UNIT:VHF-FM Handheld Transceiver FCC ID:AIERIT14-141 DATE:July 25, 2000 Included in this exhibit are schematic and component placement drawings for the RITRON Model JMX-141 VHF-FM Handheld Transceiver per FCC Parts 2.1033(c)(10) and 2.1033(c)(12). Descriptions of all circuitry and devices provided for determining and stabilizing frequency, for suppression of spurious radiation, for limiting modulation, and for limiting power are provided in th…

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