AIERIT15-460UHF FM Repeater

TYPE OF EXHIBIT: USERS MANUAL FCC PART: 2.1033(c)(3) MANUFACTURER: RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: November 25, 2002 Pub. RLR-MRM PATRIOT TWO-WAY RADIO BY RITRON PROGRAMMABLE FM REPEATER RLR-460 2/5 Watt UHF MAINTENANCE/REPAIR/OPERATING MANUAL FOR USE BY AUTHORIZED SERVICE/MAINTENANCE PERSONNEL ONLY TABLE OF CONTENTS 1. SPECIFICATIONS 1.1. GENERAL 1.2. RECEIVER 1.3. TRANSMITTER 2. INTRODUCTION 2.1. GENERAL 2.2. INSPECTION 2.3. MODEL IDENTIFICATION 2.4. FCC REGULATIONS 2.5. RF SAFETY ISSUES 3. INSTALLATION 4. OPERATION 4.1. GENERAL 4.2. DUTY CYCLE/TEMPERATURE LIMITS 4.3. INDICATORS 4.4. CONNECTORS 5. PROGRAMMING 5.1. PROGRAMMING SETUP 5.2. COMPUTER SOFTWARE COPYRIGHTS 5.3. PROGRAMMING THE REPEATER 5.4. QUIET-CALL CODES AND FREQUENCIES 5.5. DIGITAL QUIET-CALL CODES 6. ALIGNMENT 6.1. DUPLEXER 6.2. PRELIMINARY 6.3. RECEIVER 6.4. TRANSMITTER 6.5. REGULATOR SUPPLY OPTIONS 6.6. ALIGNMENT POINTS 7. THEORY OF OPERATION 7.1. DUPLEXER 7.2. RECEIVER 7.3. TRANSMITTER 7.4. AUDIO 7.5. POWER DISTRIBUTION 7.6. MICROCONTROLLER 8. MAINTENANCE AIDS 8.1. MICROCONTROLLER PIN-OUTS 8.2. CONTROLS AND ADJUSTMENTS SUMMARY 8.3. SCHEMATICS 8.4. PCB COMPONENT LOCATOR 1. SPECIFICATIONS 1.1 GENERAL Frequency Range 450-470 MHz FCC ID RX/TX Separation: 5 MHz Operational Bandwidth Duplexer 50 kHz Receiver and Transmitter 5 MHz Synthesizer Step Size 12.5 kHz Channels 1 Power Requirements 2 watt maximum output 12 VDC nominal @ 1A minimum 5 watt maximum output 12 VDC regulated @ 2 A minimum Tone/Code signaling 1 CTCSS/DCX Carrier Dropout Timer 0-8 s, programmable by PC Squelch Tail Timer 0-8 s, programmable by PC TX Timeout Timer 0-30 min, programmable by PC Front Panel Connector RJ-12 RF Connector N Front Panel Indicators 1 Power Green LED 1 TX Red LED Antenna Impedance 50 ohms resistive, VSWR 1.5:1 or less Dimensions 8”L x 5.75”W x 2.125” H Weight 3.5 lbs. Operating Temperature Range -30°C to +50°C 1.2 RECEIVER 12.5 kHz version 25 kHz version (At antenna connector) Sensitivity 0.28 uV 0.28 Adjacent Channel Selectivity 65 dB 75 dB Spurious Response Rejection 75 dB 75 dB Image Rejection 80 dB 80 dB Intermodulation Rejection 70 dB 70 dB Hum and Noise 45 dB 50 dB Frequency Stability 1.5 ppm 1.5 ppm 1.3 TRANSMITTER 12.5 kHz version 25 kHz version (At antenna connector) Output Power 2/5 watts 2/5 watts Duty Cycle 100% 100% Frequency Stability 1.5 ppm 1.5 ppm Spurious and Harmonics -36 dBm -36 dBm Hum and Noise 45 dB 50 dB 2. INTRODUCTION 2.1 GENERAL The RITRON RLR-460 Repeater is a synthesized table-top UHF repeater that operates in the 450 to 470 MHz FM communications band. Its maximum output power level is either 2 watts or 5 watts, depending upon the type of power supply which is available to power the unit. The unit receives signals originating at handheld, mobile, or fixed stations on one frequency and simultaneously retransmits the signals on a second frequency. This type of operation is described as full duplex. The unit contains an integral duplexer which allows a single antenna to be used for simultaneous transmission and reception. Full duplex operation with a repeater enables mobile and handheld units to communicate over much greater distance than is possible without a repeater. The Repeater is designed to be powered from an external DC power source. 2.2 INSPECTION Inspect the unit immediately after delivery and report any damages to the shipping company. 2.3 MODEL IDENTIFICATION The Repeater’s model, serial number, and FCC identification number appear on a label attached to the rear panel. 2.4 FCC REGULATIONS The Federal Communications Commission (FCC) requires that the radio owner obtain a station license before using the equipment to transmit. The user is not required to obtain an operating license. The station licensee is responsible for proper operation and maintenance of his radio equipment and for ensuring that transmitter power, frequency, and occupied bandwidth are within the limits specified by the station license. This is effected by aligning the unit per the instructions in the Alignment section of this manual as well as periodically checking that transmitter and deviation. Because the RLR-460 contains a transmitter, THE REPEATER MUST BE LICENSED BEFORE USE. A RITRON dealer can help with obtaining an FCC license. 2.5 RF SAFETY ISSUES On August 25, 1997, the FCC adopted the second of two Orders finalizing its rules regarding compliance with safety limits for human exposure to radio frequency (RF) emissions. All transmitting facilities, operations and devices regulated by the FCC, including this product, must be in compliance with the RF exposure limits contained in Code of Federal Regulations (CFR) 47 parts 1.1307(b)(1)-(b)(3). It is the responsibility of the licensee or grantee to either take action to bring the facility, operation or device into compliance or file an Environmental Assessment with the FCC. The repeater itself will comply without any special action. The antenna, however, must be designed and sited in such a way that persons in its vicinity will not be exposed to RF levels above those specified. In addition, the following precautions should be taken with regard to the use of this equipment: This product has been evaluated for compliance with the maximum permissible exposure limits for RF energy at the maximum power rating of the unit and with the whip antenna available from RITRON. To ensure compliance with General Population/Uncontrolled maximum exposure limits, all persons must be at least 20 cm (7.9 inches) from the antenna while the unit is transmitting. Other antennas may require lesser or greater distances to meet the limits depending upon their gains relative to that tested. Higher gain antennas are capable of yielding a higher RF energy density in the strongest part of their field and would, therefore require a greater separation from the antenna. • DO NOT OPERATE THIS EQUIPMENT unless all RF …

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TYPE OF EXHIBIT:DESCRIPTION OF MEASUREMENT FACILITY FCC PART: 2.948 MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 The ERP and field strength of spurious emissions measurements filed with this application were made on a site certified by RITRON, Inc. Data pertaining to this site are on file with the FCC. This site is used on a continuing basis exclusively by RITRON, Inc. and is utilized only for 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. All other measurements were taken at RITRON’s engineering laboratory in Carmel, IN. Sam L. Dulaney Chief Engineer RITRON, Inc. TYPE OF EXHIBIT:MANUFACTURER’S STATEMENT FCC PART: MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 The RITRON model RLR-460 is a voice two-way full duplex transceiver designed for operation on either 12.5 kHz or 25 kHz channels in the 450 MHz to 470 MHz frequency band. Its output power is variable from 0.5 watts to 5.0 watts. This product will be manufactured and marketed on a continuing basis in the United States of America by the applicant, RITRON, Inc. of Carmel, IN. TYPE OF EXHIBIT:STATEMENT OF CERTIFYING ENGINEER FCC PART: 2.947 MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 I, Sam L. Dulaney, am now, and have been for the past three years employed as the Chief Engineer with RITRON, Inc. I have been employed in the two-way radio industry for the past 17 years. I received a BSEE degree from West Virginia University in 1978 and an MSEE degree from West Virginia University in 1980. I hereby certify that all the measurements and data herein were taken by me, or under my direct supervision and that they were obtained using sound and accepted engineering principles and that they accurately reflect the performance and characteristics of the unit tested. Further, I attest that manufacturing controls exist such that this data are representative of units which will be manufactured by RITRON. Sam L. Dulaney Chief Engineer RITRON, Inc. TYPE OF EXHIBIT:STATEMENT CONCERNING SPECTRUM EFFICIENCY FCC PART:90.203(j)(3) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 I Sam L. Dulaney, Chief Engineer for RITRON, Inc. certify that this product, RLR-460, meets a spectrum efficiency standard of one voice channel per 12.5 kHz of channel bandwidth. Sam L. Dulaney Chief Engineer RITRON, Inc. TYPE OF EXHIBIT:ANTI-DRUG ABUSE CERTIFICATION FCC PART:1.2002(b) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 I, Sam L. Dulaney, certify that RITRON is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862 because of a conviction for possession or distribution of a controlled substance. Sam L. Dulaney Chief Engineer RITRON, Inc.

TYPE OF EXHIBIT:PHOTOGRAPHS-EXTERNAL FCC PART: 2.1033(c)(12) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002

1 TYPE OF EXHIBIT:PHOTOGRAPHS-INTERNAL-PCB FCC PART: 2.1033(c)(12) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:December 19, 2002 PhotographPage Top Side of PCB without Shields2 Bottom Side of PCB3 2 PCB-Top Side without Shields 3 PCB-Bottom Side

TYPE OF EXHIBIT:APPLICATION INFORMATION FCC PART: 2.1033(C)(1), (2) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 APPLICANT:RITRON, Inc. 505 West Carmel Dr. Carmel, IN 46032 CONTACT:Sam L. Dulaney Chief Engineer 317-846-1201 x 185 317-846-4978 [email protected] FCC ID:AIERIT15-460 FCC PART:90 EQUIPMENT CLASS:TNB-Licensed non-broadcast station transmitter DESCRIPTION:UHF FM Repeater Transceiver FREQUENCY STABILITY:1.5 PPM TYPE OF EXHIBIT:OPERATIONAL DESCRIPTION FCC PART: 2.1033(C)(4), (5), (6), (7), (8), (10) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 DESCRIPTION: The RLR-460 is a UHF FM repeater which operates at a maximum 5.0 watts RF output. It includes in internal duplexer to allow full duplex operation. By changing setting of the maximum deviation control, the unit may be configured for either 12.5 kHz or 25 kHz channel operation. The unit is designed to be used in fixed operation with an external power supply and antenna. TYPES OF EMISSIONS: 10K1F3E and 14K8F3E FREQUENCY RANGE: 450 to 470 MHz RANGE OF OPERATING POWER: 0.5 to 5.0 watts OPERATING POWER CONTROL: The output power is controlled by tuning the capacitors in the matching network of the last RF transmitter power stage and by a potentiometer which controls the gate voltage to the last RF power amplifier device. MAXIMUM POWER RATING: 5.0 watts TYPE OF EXHIBIT:OPERATIONAL DESCRIPTION FCC PART: 2.1033(C)(4), (5), (6), (7), (8) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 FINAL AMPLIFYING STAGE VOLTAGES AND CURRENTS: Po (watts)Vg (V)Vd (V)Id (A) 0.50.6711.10.28 1.01.3610.90.39 1.51.8310.90.52 2.02.5610.90.65 3.03.1210.80.99 4.03.6810.51.33 5.04.2610.21.77 Where Po is output power, Vg is the gate voltage, Vd is the drain voltage and Id is the drain current. CIRCUIT DESCRIPTION-STABILIZING FREQUENCY: The basic frequency stability of the unit is determined by the stability of the transmitter VCTCXO (voltage controlled temperature compensated crystal oscillator), Y101, and the voltage which drives the modulation port of the VCTCXO. The VCTCXO is a monolithic device purchased by RITRON and specified to have a frequency stability in excess of that required by the Commission. Sampling of units by RITRON has confirmed that the devices do indeed meet the required stability. The voltage to the modulation port of the VCTCXO is maintained by a high stability voltage regulator. The variation in frequency caused by modulation port voltage variations is at least an order of magnitude below that of the basic VCTCXO. CIRCUIT DESCRIPTION-SPURIOUS RADIATION SUPPRESSION: Spurious radiation caused by modulation components is limited by the modulation limiter filter. The modulation limiter filter is an active lowpass filter formed around two operational amplifiers, U305-C and U305_D. This active filter has five poles with no transmission zeros. Harmonics of the transmitter carrier are suppressed by a 5-pole elliptic filter which follows the final transmitter stage matching network. This filter has less than 0.5 dB insertion loss and 40 dB stopband loss. CIRCUIT DESCRIPTION-MODULATION LIMITING: The modulation limiter is an operational amplifier, U305-B, which is allowed to clip against its power supply rails. This limits the maximum deviation and thus, the maximum occupied bandwidth. CIRCUIT DESCRIPTION-POWER LIMITING: The RF output power is limited by the capability of the final RF power amplifier device. This device will not produce much more than the 5.0 watt maximum specified output of the unit. Internally, the matching network and gate voltage control further limit the output power.

1 TYPE OF EXHIBIT:SEMICONDUCTOR PARTS LIST FCC PART: MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:December 19, 2002 Reference DesignatorPart NumberDescription CR100SMV1236-001Receive VCO Tuning Diode CR101MMBD7000Transmit VCO Speed-Up Diode CR102SMV1236-001Transmit VCO Tuning Diode CR103MMBV2101LTransmit VCO Modulation Diode CR104MMBZ5230BQ108 Bias Zener Diode CR300MMBD7000I/O Protection Diode CR301Red LEDTransmit Indicator CR302Green LEDPower Indicator CR303Not Used CR3041N4001Power Reverse Protection Diode CR305MMBD7000I/O Protection Diode CR306MMBZ5241BVoltage Regulator Zener Reference Q101PBR951Receiver RF Low Noise Amplifier Q102MMBTH10Receiver 1 st IF Amplifier Q103MMBT5088Receiver Power Supply Noise Filter Q104PBR941Receiver VCO Transistor Q105PBR941Receiver VCO 1 st Buffer Amplifier Q106PBR941Receiver VCO Final Buffer Amplifier Q107MMBTH10Receiver VCTCXO Frequency Tripler Q108ST54003Transmitter Final RF Power Amplifier Q109BFG35Transmitter RF Power Amplifier Driver Q110PBR951Transmitter PF Power Pre-driver Q111PBR951Transmitter RF Amplifier Q112BCP69Transmitter Chain Power Switch Q113MMBT5088Transmitter Chain Power Switch Q114PBR941Transmitter VCO Final Buffer Amplifier Q115PBR941Transmitter VCO 1 st Buffer Amplifier Q116MMBT5088Transmitter Power Supply Noise Filter Q117PBR941Transmitter VCO Transistor Q118Not Used Q119MMUN2211T1Transmit VCO Electronic Switch Q120UMZ1NTRSquelch Temperature Compensation Q300TIP120Power Supply Pass Transistor Q301MMBT3906I/O Level Switching Q302MMUN2211PTT Enable Switching Transistor U100MAX26821 st Mixer IC U101TA31136FN2 nd IF Mixer, Amplifier, Detector 2 U102LMX2306TMReceiver Synthesizer IC U103LMX2306TMTransmit Synthesizer IC U300LMV393Squelch and CTCSS Comparator U301MC33204Receive Audio Buffer U302MAX7410Receive CTCSS Filter U30374HC4053Audio Gating Switches U304LM386Audio Power Amplifier U305MC33204Transmit Audio Limiter/Amplifier U306MAX7410Transmit CTCSS Filter U307MCP120-475Microprocessor Reset IC U308MC68HC705C8Microprocessor U309X24C01EEPROM Memory U310MC78LC505-volt Regulator U311LP29515-volt Regulator Y10023050003Receive 14.4 MHz Reference Oscillator Y10123050003Transmit 14.4 MHz Reference Oscillator

TYPE OF EXHIBIT:TUNE-UP PROCEDURE FCC PART: 2.1033(C)(9) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002 DUPLEXER The duplexer allows the Repeater to simultaneously transmit and receive. To accomplish this, in the receive input path, the transmitter signal must be notched or suppressed by 70 dB or more. In addition, on the transmit path, transmitter noise on the receive frequency must be also suppressed by about 70 dB. The duplexer contains four cavities, two for each path to achieve the necessary notch depth. Because the notches are very narrow, the duplexer must be re-tuned if the frequency of operation is changed by more than 50 kHz. Follow the procedure below to tune the duplexer: 1. Connect the antenna to be used to the antenna connector on the Repeater. If possible, the antenna should be positioned in a way that matches the actual configuration as close as possible. If the antenna requires tuning, tune it to the transmit frequency. If an antenna is not available, connect a low VSWR 50-ohm load instead. 2. Unplug the two RF cables connecting the duplexer to the main PCB. 3. A spectrum analyzer with tracking generator or a network analyzer should be used to sweep the duplexer. If one is not available, a spectrum analyzer and an RF signal generator can be used, but the notch frequencies will be difficult to determine. The duplexer should be swept from one RCA plug to the other; it doesn’t matter which end goes to the generator or the spectrum analyzer. 4. One should see at least two, and maybe as many as four notches. Carefully loosen the nuts on the two duplexer cavities underneath the transmitter portion of the main PCB. Adjust the two cavity screws for the deepest notch possible at the RECEIVE frequency. Tighten the nuts being careful not to de-tune the notch frequency. Do the same for the two screws on the cavities underneath the receiver portion of the main PCB, but tune for a notch at the TRANSMIT frequency. When finished, one should see two notches, one at the transmit frequency and one at the receive frequency. These two notches are very narrow and special attention should be paid to ensuring that they are at the correct frequencies. The two notches should be about 70 dB deep compared to a straight-through connection. PRELIMINARY 1. Alignment of the RLR-460 Repeater requires that surface-mount potentiometers be adjusted. These potentiometers do not have end stops so one must pay special attention to the wiper position for maximum clockwise and counterclockwise settings. Also, one should be careful never to set the wiper in the dead band between maximum and minimum. 2. Alignment of the Repeater requires connection to the pins on the front panel modular jack. 3. The frequency deviation numbers shown are for narrow (12.5 kHz channel spacing) operation. Double the values for wide (25 kHz channel spacing) operation. 4. A communications service monitor capable of duplex operation is required to set R328 (REPEAT AUDIO LEVEL). Other alignment steps can use individual pieces of equipment (RF signal generator, RF wattmeter, etc.), although communications service monitors tend to include all the functions necessary to align this product. 5. Ensure that the Repeater is properly programmed for the correct transmit and receive frequencies and the correct QC/DQC tones/codes. Even if a transmit tone is not to be used (unusual), one should program one anyway to get the transmit tone deviation properly set. This parameter is, however, set at the factory. 6. Refer to the RLR-460 ALIGNMENT POINTS diagram for the location of alignment points and adjstments. RECEIVER 1. Apply power to the Repeater. The green front panel LED should be illuminated, but may be blinking. 2. Connect the MON input (modular jack pin 4) to ground (modular jack pin 1). This will override the squelch operation and also inhibit the transmitter. Local Oscillator Trim 1. Connect a test probe from a frequency counter or frequency measuring device to test point TP103. The receiver 1 st local oscillator signal at approximately –12 dBm is present at this point. The correct frequency at this point is the receive frequency minus the 1 st IF frequency of 43.65 MHz (f LO = f RX - 43.65). 2. Using a tuning tool, adjust R134 (RX FREQ TRIM) for the correct frequency +/-100 Hz. Receive VCO Tuning 1. Connect a high impedance oscilloscope probe to an oscilloscope set for 1 V/div, DC coupled. The sweep speed is not important. 2. Connect the ground lead of the probe to the PCB ground. The mounting legs of the receiver input connector J100 can be used. Touch the probe tip to TP100 and note the voltage on the oscilloscope. This point is very sensitive and the synthesizer may go out of lock. This will be evident by an initial voltage which then decays to zero in about a few seconds. Note the voltage right after the probe is touched to the test point and before it begins decaying. 3. Using an insulated tuning tool, adjust C135 inside the VCO/synthesizer (RX VCO TUNE) shield for 2.5 +/-0.25 volts at TP100. The green front panel LED should be illuminated continuously (not blinking). Receiver Front-End Tuning 1. Connect a SINAD meter to the AUDIO OUT output (pin 5). Set R330 (SPEAKER AUDIO LEVEL) to mid rotation. 2. Connect an RF signal generator to the antenna connector. The generator frequency should be set to the desired receive frequency modulated with a 1 kHz tone at 1.5 kHz deviation. The RF level should be set to 7 uV (–90 dBm). 3. If the SINAD meter reads greater than 12 dB, reduce the RF signal generator output level until 12 dB SINAD is reached. Adjust L100 through L104 for best SINAD while reducing the RF signal generator output level to keep the SINAD near 12 dB. The RF outptut level for 12 dB SINAD should be 0.25 uV (-119 dBm) or less. Squelch 1. Set the RF signal generator output level to produce a SINAD where the squelch is desired to…

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TYPE OF EXHIBIT: TRANSMITTER EFFECTIVE RADIATED POWER FCC PART: MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: November 19, 2002 PROCEDURE: 1. The measurement for effective radiated power was taken at the RITRON, Inc. 3 meter test site, details of which are on file with the FCC. 2. The RLR-460 was aligned for transmitter operation on 457.1125 MHz at the 5.0 watt maximum output power rating for the unit per the tune-up procedure outlined in the Maintenance Manual. The unit was then terminated at the antenna port with the only antenna offered for sale with this product. (The user may connect other antennas, however.) 3. All field strength measurements were made with the Hewlett-Packard Model 8560E and 8559A Spectrum Analyzers and an Electro-Metrics EM-6924 adjustable dipole antenna. 4. The height and polarization of the field strength measurement antenna and orientation of the RLR-460 were varied to provide maximum field strength. 5. A substitution antenna, an Electro-Metrics EM-6924 adjustable dipole, was substituted for the RLR-460 at the RLR-460’s location. An RF signal generator was set for the frequency of the RLR-460 with the level at the substitution antenna noted. 6. The polarization of the substitution antenna was adjusted for maximum signal strength at the field strength measuring antenna. The level at the field strength antenna was noted. TYPE OF EXHIBIT: TRANSMITTER EFFECTIVE RADIATED POWER FCC PART: MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: November 19, 2002 EQUATIONS: The substitution antenna is specified from the manufacturer in terms of antenna factor rather than antenna gain. The conversion is: Ga(dbd) = 20 log f (MHz) – AF(dB) – 31.9 The effective radiated power (ERP) is then: ERP(dBm) = Pr(dBm) + Pgen(dBm) – Ps(dBm) – Ga(dBd) Where: Pr is the power level of the radio’s emission at the receiving antenna output. Pgen is the RF signal generator level at the substitution antenna input. Ps is the power level of the substitution antenna emission at the receiving antenna output. Ga is the gain of the substitution antenna. The ERP is converted to watts from dBm by: ERP(watts) = antilog 10 ((ERP(dBm) – 30)/10) TYPE OF EXHIBIT: TRANSMITTER EFFECTIVE RADIATED POWER FCC PART: MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: November 19, 2002 RESULTS: Pr Pgen Ps Ga ERP ERP (dBm) (dBm) (dBm) (dBd) (dBm) (watts) +3.0 0.0 -26.0 0.3 +28.7 0.74 TYPE OF EXHIBIT: MAXIMUM PERMISSIBLE EXPOSURE EVALUATION FCC PART: MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: February 5, 2003 PROCEDURE AND EQUATIONS: The ERP values previously calculated will be used to determine the minimum safe distance from the antenna supplied by RITRON in order not to exceed the Occupational Limits of RF exposure. The ERP must be converted to EIRP to simulate an isotropic radiator: ERP = 0.74 W For this unit: EIRP = 1.22 W Power density is related to EIRP: S(W/m 2 ) = EIRP(W)/4πr 2 where r is distance from the source in meters. Rearranging for distance: r = SQRT (EIRP/4πS). The MPE limit for a device operating in a General Population/Uncontrolled environment is f (MHz)/1500 mW/cm 2 which for this product at the upper band edge is 0.31 mW/cm 2 . For the equation above, mW/cm 2 must be converted to W/m 2 . Since 1 mW/cm 2 = 10 W/m 2 , the FCC limit is 3.1 W/m 2 . Substituting and solving for distance: r = 0.18 meters (18 cm) or 7 in. The MPE for General Population/Uncontrolled environment is met at a distance of 18 cm (7 in.). This is less than the 20 cm minimum distance users would be expected to be from the antenna. Therefore, since power density decreases with the square of distance, users would be exposed to less than the MPE at the 20 cm minimum distances and greater. TYPE OF EXHIBIT: RF WARNING STATEMENT FCC PART: MANUFACTURER: RITRON, INC. 505 West Carmel Drive Carmel, IN 46032 MODEL: RLR-460 TYPE OF UNIT: UHF FM Repeater FCC ID: AIERIT15-460 DATE: February 5, 2003 STATEMENT: The following statement appears in the User/Maintenance Manual regarding RF safety: This product has been evaluated for compliance with the maximum permissible exposure limits for RF energy at the maximum power rating of the unit and with the whip antenna available from RITRON. To ensure compliance with General Population/Uncontrolled maximum exposure limits, all persons must be at least 20 cm (7.9 inches) from the antenna while the unit is transmitting. Other antennas may require lesser or greater distances to meet the limits depending upon their gains relative to that tested. Higher gain antennas are capable of yielding a higher RF energy density in the strongest part of their field and would, therefore require a greater separation from the antenna.

TYPE OF EXHIBIT:SCHEMATICS FCC PART: 2.1033(C)(10) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:November 25, 2002

1 TYPE OF EXHIBIT:LIST OF ATTACHED EXHIBITS FCC PART: 2.1033(c)(14) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:October 25, 2002 The following exhibits are contained in this file: Description of ExhibitFCC Rule Part(s) Page List of Test Equipment Used2.947(d)2 Description of Measurement Facility2.9483 Radio Frequency Output Power2.1046(a)4 Modulator Response2.1047(a)6 Clipper Filter Response2.1047(a)9 Modulation Limiting Curves2.1047(b)11 Occupied Bandwidth2.1049(c)(1), 90.210(b), (d)13 Spurious Emissions at Antenna Terminal2.1051, 90.210(d)17 Field Strength of Spurious Emissions2.1053(a), (b)19 Frequency Stability vs Temperature2.1055(a)(1), 90.21322 Frequency Stability vs Supply Voltage2.1055(d)(1)24 Transmitter Transient Frequency Behavior90.21426 2 TYPE OF EXHIBIT:LIST OF TEST EQUIPMENT USED FCC PART: 2.947(d) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:October 25, 2002 The measurements taken for this application were obtained using one or more of the following pieces of equipment: ITEMMANUFACTURERMODEL NO.SERIAL NO. DC Power SupplyAstronVS 12M90071655 MultimeterFluke456967029 MultimeterBK Precision2704A234-008455 WattmeterTelewave61215081 RF Test SetHewlett-Packard8920A01498 Spectrum AnalyzerHewlett-Packard8559A2010A06979 Spectrum AnalyzerHewlett-Packard8560E3720A02980 Digital Storage ScopeFluke/PhilipsPM3335DM630034 Temperature ChamberDelta Design3900 CL0-52-R Frequency CounterHewlett-Packard5383A1716A01417 Function GeneratorBK Precision4010275-00280 ThermocoupleTriplett320-G/P 3 TYPE OF EXHIBIT:DESCRIPTION OF MEASUREMENT FACILITY FCC PART: 2.948 MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIERIT15-460 DATE:October 25, 2002 The Field Strength measurements filed with this application were made on a site certified by RITRON, Inc. Data pertaining to this side are on file with the FCC and are current. This site is used on a continuing basis exclusively by RITRON, Inc. and is utilized only for 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. All other measurements were taken at RITRON’s Engineering Laboratory in Carmel, IN. Sam L. Dulaney Chief Engineer RITRON, Inc. 4 TYPE OF EXHIBIT:RADIO FREQUENCY OUTPUT POWER FCC PART: 2.1046(a) MANUFACTURER:RITRON, Inc. 505 West Carmel Drive Carmel, IN 46032 MODEL:RLR-460 TYPE OF UNIT:UHF FM Repeater FCC ID:AIE…

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