OWDTR-0011-APanther 300M VHF (136-155 MHz)

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 41 FCC and Canadian Certification Report APPENDIX D: OPERATION MANUAL MM101030V2 R1A P ANTHER ™ 300M VHF Mobile Radio Operator’s Manual 2 TABLE OF CONTENTS Page SAFETY TRAINING INFORMATION ..........................................3 TRANSMITTER HAZARDS......................................................5 SAFE DRIVING RECOMMENDATIONS..................................6 OPERATING RULES AND REGULATIONS ..............................7 OPERATING TIPS ...................................................................8 INTRODUCTION..........................................................................9 RADIO INDICATORS ................................................................10 CONTROLS............................................................................10 OPTION BUTTON FUNCTIONS............................................11 HOOKSWITCH FUNCTIONS.................................................13 DISPLAY STATUS AND ERROR CODES ...............................14 BASIC OPERATION..................................................................17 SELECTING A CHANNEL .....................................................17 TRANSMITTING A BASIC CALL ...........................................17 PUBLIC ADDRESS MESSAGE .............................................17 CHANNEL GUARD ................................................................18 SENDING DTMF WITH THE DTMF MICROPHONE.............18 SELECTIVE SIGNALING ..........................................................20 TYPE 99 OPERATION ...........................................................20 PROGRAMMABLE PTT FUNCTIONS......................................22 CHANNEL BUSY LOCKOUT .................................................22 CHANNEL GUARD CHANNEL BUSY LOCKOUT.................22 TYPE 99 DISABLE AFTER PTT ............................................22 IGNITION SENSE TX DISABLE ............................................22 PROGRAMMABLE HORN ALERT FUNCTION .......................23 EXTERNAL ALARMS.............................................................23 RESETTING THE CAR HORN ALERT..................................23 CAR HORN ALERT IGNITION SENSE OPTION ..................23 CLONING...................................................................................24 WARRANTY ..............................................................................25 This manual is published by Com-Net Ericsson Critical Radio Systems, Inc. , without any warranty. Improvements and changes to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Com-Net Ericsson Critical Radio Systems, Inc. , at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Com-Net Ericsson Critical Radio Systems, Inc. Copyright © 2001, Com-Net Ericsson Critical Radio Systems, Inc. All rights reserved. 3 SAFETY TRAINING INFORMATION WARNING Your Com-Net Ericsson P ANTHER 300M VHF Mobile Radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only,” meaning it must be used only during the course of employment by individuals aware of the hazards and the ways to minimize such hazards. This radio is not intended for use by the “General Population” in an uncontrolled environment. This radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only.” In addition, your Com-Net Ericsson radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: • FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. • American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields – RF and Microwave. 4 CAUTION To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines: • DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by Com-Net Ericsson or an antenna specifically authorized by Com-Net Ericsson for use with this radio. • DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. The radio is transmitting when the “TX” LED in the radio display is lit. You can cause the radio to transmit by pressing the PTT button. • ALWAYS use Com-Net Ericsson authorized accessories (antennas, speaker/mics, etc.). Use of unauthorized accessories may cause the FCC Occupational/Controlled Exposure RF compliance to be exceeded. • ALWAYS keep at least 25 cm (10 inches) between the antenna and operator/bystanders while transmitting. This radio has been tested and found compliant with SAR limits for uncontrolled exposure at a distance of 25 cm (10 inches) or more using a 50% duty cycle. The information listed above is provided to make the user aware of an RF exposure and what to do to assure that this radio operates within the FCC…

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360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 42 FCC and Canadian Certification Report APPENDIX E: INSTALLATION MANUAL MM101031V2 R1A P ANTHER ™ 300M VHF Mobile Radio Installation Manual 2 Copyright © 2001, Com-Net Ericsson Critical Radio Systems, Inc. All rights reserved. This manual is published by Com-Net Ericsson Critical Radio Systems, Inc. , without any warranty. Improvements and changes to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Com-Net Ericsson Critical Radio Systems, Inc. , at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Com-Net Ericsson Critical Radio Systems, Inc. The software contained in this device is copyrighted by Com-Net Ericsson Critical Radio Systems, Inc. Unpublished rights are reserved under the copyright laws of the United States. NOTICE! Repairs made to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations, or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty. NOTICE! 3 TABLE OF CONTENTS Page SAFETY INFORMATION ................................................................... 4 SAFETY TRAINING INFORMATION.............................................. 5 INTRODUCTION ................................................................................. 7 UNPACK AND CHECK THE EQUIPMENT .................................... 7 OPTIONS AND ACCESSORIES........................................................ 8 INSTALLATION................................................................................... 9 STEP 1 - PLAN THE INSTALLATION ............................................. 9 STEP 2 - LOCATE THE TOOLS REQUIRED................................... 9 STEP 3 – EQUIPMENT PREPARATION ........................................ 10 STEP 4 – PROGRAM THE RADIO ................................................. 15 STEP 5 – INSTALL CABLES........................................................... 16 STEP 6 – INSTALL OPTIONS AND ACCESSORIES .................... 22 FIGURES Figure 1 – Typical Connection Diagram................................................ 11 Figure 2 – Removing Top Cover ........................................................... 12 Figure 3 – Factory Default Internal Speaker Jumper Setting (Enabled) 13 Figure 4 – Factory Default Settings For Jumper JP600 ......................... 14 Figure 5 – Removing Plastic Cover ....................................................... 15 Figure 6 – Power Cable RPM 113 7674/10 ........................................... 17 Figure 7 – Mounting Bracket and Mounting Bracket Hardware Kit...... 20 Figure 8 – Mounting Bracket Installation .............................................. 21 Figure 9 – Mounting Radio to Bracket .................................................. 22 Figure 10 - Mounting the External Speaker ........................................... 25 Figure 11 – External Speaker Option..................................................... 26 Figure 12 – Internal/External Speaker Relay ......................................... 27 Figure 13 - External Car Alert ............................................................... 29 Figure 14 - External Alarm Relay.......................................................... 29 Figure 15 – Ignition Sense Option ......................................................... 30 TABLES Table 1 - P ANTHER 300M Mobile Radio Options and Accessories ......... 8 Table 2 – Radio Option Connector P3 Interface Description ................ 23 4 SAFETY INFORMATION The operator of any mobile radio should be aware of certain hazards common to the operation of vehicular radio transmissions. A list of several possible hazards is given: 1. Explosive Atmospheres - Just as it is dangerous to fuel a vehicle with the motor running, similar hazards exist when operating a mobile radio, be sure to turn the radio off while fueling the vehicle. Do not carry containers of fuel in the trunk of the vehicle if the radio is mounted in the trunk. 2. Interference to Vehicular Electronics Systems - Electronic fuel injection systems, electronic anti-skid braking systems, electronic cruise control systems, etc., are typical electronic systems that may malfunction due to the lack of protection from radio frequency energy present when transmitting. If the vehicle contains such equipment, consult the dealer and enlist their aid in determining the expected performance of electronic circuits when the radio is transmitting. 3. Dynamite Blasting Caps - Dynamite blasting caps may be caused to explode by operating a radio within 500 feet of the blasting caps. Always obey the "Turn Off Two-Way Radios" signs posted where dynamite is being used. When transporting blasting caps in your vehicle: a. Carry the blasting caps in a closed metal box with a soft lining. b. Leave the radio OFF whenever the blasting caps are being put into or removed from the vehicle. 4. Liquefied Petroleum (LP) Gas Powered Vehicles - Mobile radio installations in vehicles powered by liquefied petroleum gas with the LP gas container in the trunk or other sealed-off space within the interior of the vehicle must conform to the National Fire Protection Association standard (NFPA) 58 requiring: a. The space containing the radio equipment shall be isolated by a seal from the space containing the LP gas container and it…

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360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 41 FCC and Canadian Certification Report APPENDIX D: OPERATION MANUAL MM101030V2 R1A P ANTHER ™ 300M VHF Mobile Radio Operator’s Manual 2 TABLE OF CONTENTS Page SAFETY TRAINING INFORMATION ..........................................3 TRANSMITTER HAZARDS......................................................5 SAFE DRIVING RECOMMENDATIONS..................................6 OPERATING RULES AND REGULATIONS ..............................7 OPERATING TIPS ...................................................................8 INTRODUCTION..........................................................................9 RADIO INDICATORS ................................................................10 CONTROLS............................................................................10 OPTION BUTTON FUNCTIONS............................................11 HOOKSWITCH FUNCTIONS.................................................13 DISPLAY STATUS AND ERROR CODES ...............................14 BASIC OPERATION..................................................................17 SELECTING A CHANNEL .....................................................17 TRANSMITTING A BASIC CALL ...........................................17 PUBLIC ADDRESS MESSAGE .............................................17 CHANNEL GUARD ................................................................18 SENDING DTMF WITH THE DTMF MICROPHONE.............18 SELECTIVE SIGNALING ..........................................................20 TYPE 99 OPERATION ...........................................................20 PROGRAMMABLE PTT FUNCTIONS......................................22 CHANNEL BUSY LOCKOUT .................................................22 CHANNEL GUARD CHANNEL BUSY LOCKOUT.................22 TYPE 99 DISABLE AFTER PTT ............................................22 IGNITION SENSE TX DISABLE ............................................22 PROGRAMMABLE HORN ALERT FUNCTION .......................23 EXTERNAL ALARMS.............................................................23 RESETTING THE CAR HORN ALERT..................................23 CAR HORN ALERT IGNITION SENSE OPTION ..................23 CLONING...................................................................................24 WARRANTY ..............................................................................25 This manual is published by Com-Net Ericsson Critical Radio Systems, Inc. , without any warranty. Improvements and changes to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Com-Net Ericsson Critical Radio Systems, Inc. , at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Com-Net Ericsson Critical Radio Systems, Inc. Copyright © 2001, Com-Net Ericsson Critical Radio Systems, Inc. All rights reserved. 3 SAFETY TRAINING INFORMATION WARNING Your Com-Net Ericsson P ANTHER 300M VHF Mobile Radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only,” meaning it must be used only during the course of employment by individuals aware of the hazards and the ways to minimize such hazards. This radio is not intended for use by the “General Population” in an uncontrolled environment. This radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only.” In addition, your Com-Net Ericsson radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: • FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. • American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields – RF and Microwave. 4 CAUTION To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines: • DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by Com-Net Ericsson or an antenna specifically authorized by Com-Net Ericsson for use with this radio. • DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. The radio is transmitting when the “TX” LED in the radio display is lit. You can cause the radio to transmit by pressing the PTT button. • ALWAYS use Com-Net Ericsson authorized accessories (antennas, speaker/mics, etc.). Use of unauthorized accessories may cause the FCC Occupational/Controlled Exposure RF compliance to be exceeded. • ALWAYS keep at least 25 cm (10 inches) between the antenna and operator/bystanders while transmitting. This radio has been tested and found compliant with SAR limits for uncontrolled exposure at a distance of 25 cm (10 inches) or more using a 50% duty cycle. The information listed above is provided to make the user aware of an RF exposure and what to do to assure that this radio operates within the FCC…

Text truncated - open the document above for the full version.

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 44 FCC and Canadian Certification Report APPENDIX G: BLOCK DIAGRAM

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 58 FCC and Canadian Certification Report 12 EXTERNAL EUT PICTURES PHOTOGRAPH 15: FONT VIEW 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 59 FCC and Canadian Certification Report PHOTOGRAPH 16: REAR VIEW 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 60 FCC and Canadian Certification Report PHOTOGRAPH 17: TOP VIEW 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 61 FCC and Canadian Certification Report PHOTOGRAPH 18: BOTTOM VIEW 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 62 FCC and Canadian Certification Report PHOTOGRAPH 19: LEFT SIDE VIEW 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 63 FCC and Canadian Certification Report PHOTOGRAPH 20: RIGHT SIDE VIEW

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 40 FCC and Canadian Certification Report APPENDIX C: LABEL INFORMATION W ARNING L ABEL Dimensions (L): 39.20 mm MAX , 39.1 mm NOMINAL (W): 13.00 mm MAX , 12.9 mm NOMINAL FCC ID L ABEL Dimensions (L): 39.20 mm MAX , 39.1 mm NOMINAL (W): 16.00 mm MAX , 15.9 mm NOMINAL PHOTOGRAPH 1: LOCATION OF LABEL ON EUT CAUTION: Device must be restricted to occupational use to satisfy FCC RF exposure compliance. See owner’s manual for specific operating requirements. Com-Net Ericsson Serial Number: XXXXXXX FCC ID: OWDTR-0011-A Canada: XXXXXXXX Label will be placed on the side of the device.

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 40 FCC and Canadian Certification Report APPENDIX C: LABEL INFORMATION W ARNING L ABEL Dimensions (L): 39.20 mm MAX , 39.1 mm NOMINAL (W): 13.00 mm MAX , 12.9 mm NOMINAL FCC ID L ABEL Dimensions (L): 39.20 mm MAX , 39.1 mm NOMINAL (W): 16.00 mm MAX , 15.9 mm NOMINAL PHOTOGRAPH 1: LOCATION OF LABEL ON EUT CAUTION: Device must be restricted to occupational use to satisfy FCC RF exposure compliance. See owner’s manual for specific operating requirements. Com-Net Ericsson Serial Number: XXXXXXX FCC ID: OWDTR-0011-A Canada: XXXXXXXX Label will be placed on the side of the device.

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 48 FCC and Canadian Certification Report APPENDIX I: INTERNAL EUT PICTURES PHOTOGRAPH 5: INSIDE COVER 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 49 FCC and Canadian Certification Report PHOTOGRAPH 6: MAIN PCB IN CHASSIS 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 50 FCC and Canadian Certification Report PHOTOGRAPH 7: FRONT SHOWING LCD PCB IN CHASSIS 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 51 FCC and Canadian Certification Report PHOTOGRAPH 8: INSIDE CHASSIS 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 52 FCC and Canadian Certification Report PHOTOGRAPH 9: LCD PCB FRONT SIDE 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 53 FCC and Canadian Certification Report PHOTOGRAPH 10: LCD PCB BACK 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 54 FCC and Canadian Certification Report PHOTOGRAPH 11: MAIN PCB TOP WITH SHIELDS 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 55 FCC and Canadian Certification Report PHOTOGRAPH 12: MAIN PCB TOP WITH SHIELDS REMOVED 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 56 FCC and Canadian Certification Report PHOTOGRAPH 13: MAIN PCB BOTTOM WITH SHIELDS 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 57 FCC and Canadian Certification Report PHOTOGRAPH 14: MAIN PCB BOTTOM SHIELDS REMOVED

360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com Com-Net Ericsson Critical Radio Systems, Inc. Model: Panther 300M VHF (136-155 MHz) FCC ID: OWDTR-00011-A 2001056 REV 1 / QRTL01-030 Page 39 FCC and Canadian Certification Report APPENDIX B: PRODUCT DESCRIPTION 7. THEORY OF OPERATIONS Circuit Composition and Operation Theory The basic explanation for the circuit composition the one board controlling the analog circuit parts and the digital circuit parts for the other control. Receiver Receive parts is composed in the double conversion system, which has the 1 st IF Frequency of 21.4 MHz And 2 nd Frequency of 455 KHz The 2 pole MCF used in the 1 st IF, and the sensitivity repression are reduced for the more stable reception. RF Front end The signal received by the antenna will be transmitted to the band pass filter through the antenna switching circuit consisted of C44, L7 The front RF amplifier transistor Q1 consists of the L301, C302 input band pass filter and L307, C209, saw filter output band pass filter primarily diminishes the other signal rather then the 1 st IF image and other signal within the reception band amplifier only the necessary signal within the RF 1 st Mixer The receiver which has been amplifier in the RF frontend is provided to the base of the 1 st mixer Q2. The 1 st L/O signal provide from the VCO is supplied to the emitter of Q2 and Converted to the 1 st IF 21.4 MHz 1 st IF Filter and 1 st IF Amplifier The signal converted by Q2 to 21.4 MHz, the 1 st frequency, change its impedance through C61, L14 and then is infused to the fundamental MCF which has the center frequency of 21.4 MHz and the width of +/- 3.75 KHz. Here, the signal reduces the image and other unwanted signal for the 2 nd IF , and changes its Impedance again through the R9. Then the signal is infused to the Q3, the 1 st IF amplifier. The signal infused to the Q3 is amplifier approximately by 20 dB in other to acquire the required reception sensitivity, and infused to the IC1 which functions as the 2 nd mixer, the 2 nd IF amplifier, and the FM detector. 2 nd Mixer, and IF, FM Detector (IC1) The receiver IF signal of 21.4 MHz, which has been infuse to IC1 is mixed with the 2 nd L/O signal of 20.945 MHz, and converted to 455 KHz, the 2 nd IF frequency. The receiver signal converted to the 2 nd IF signal frequency passed through the CF1, the ceramic filter of 455 MHz again. After the limiting inside the IC1 and the FM demodulating by the quadrature detector inside the IC1, the signal offers the output through the 9 th pin of IC1.The 2 nd L/O signal of 20.945 MHz which infused to the IC1 filter and uses directly the crystal of 20.945 MHz. The squelch circuit is composed to detect the noised from the received signal demodulate in the 9 th pin of the IC1. For this purpose, the noise filter is using the OP amplifier inside the IC1. De-Emphasis and 300 Hz (IC103) The audio signal which has been FM demodulate in the IC1 is supplies to the IC103 which function as the De-emphasis and 300 Hz HPF. Since the IC103A has the 300 Hz HPF with the 1 st characteristics and the De-emphasis characteristics with the center frequency of approximately 200 Hz, the IC103B, and the IC103C has the 300 Hz HPF with the 6 th characteristics, they function as a normal De-emphasis and also reduce the signal such as CTCSS to unwanted noised from the speaker. Audio Power Amplifier (IC101) The receiver audio signal which has been automatic adjusted to the appropriate volume in by Q5,Q104,Q105 are supplied to the 2 nd pin of the IC101 amplifier approximately by 20 dB. Then, it turns up the speaker with the maximum output of 0.3 watts. The 7 th pin of the IC101 is the audio mute terminal. If a voltage supply to the 6 th pin of IC101 is supplied to this terminal, the IC101 stops functioning as the audio power amplifier regardless of the signal supplied to the 2 nd pin of the IC101. And there is no sound from the speaker. WX Radio RF Amp (Q4) The weather signal amplified by Q4. 1 st Mixer (Q7) The weather receiver signal which has been amplified in the RF front end is provided to base of 1 st MIX Q7. The 1 st local signal provided from the PLL module is supplied to the emitter of Q7 and converted to the 1 st IF21.4 MHz. Transmitter The transmitter parts of the TK-514 is designed to amplify the RF signal oscillated and modulated by the synthesizer to approximately 500 mW by the power transistor of Q701. Pre-emphasis and 300 Hz HPF. Limiter (IC104A, 104C) The voice signal input from the microphone is pre-emphasized at the same time, the components below 300 Hz are reduce to minimize the interference to the CTCSS tone. The signal which comes out of the IC104C is limited to a certain amplitude at the IC104A for the voice signal not to exceed the allowable band width assigned for transmission. 3 KHz LPF (IC104D, IC104B) After passing the IC104A limiter, the signal is combined with the CTCSS tone at the digital circuits, passes the RV102, and is supplied to the 6 KHz LPF has the 4 th characteristics and adjust the assigned frequency band width not to exceed the allowable rang. Tx Power (Q701) The transmitted signal of approximately 7 mW, combined at the driver TR is supplied to the base of the Q701 amplifier. The transmitted signal amplifier to 0.47 W here passes the TX LPF of the 2 nd characteristics of the L702 and the L703, and RX/TX switching takes place by the D701. After this, The signal is provided to the antenna the TX L…

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