AZ492FT4904Mobile Radio

APX™ TWO-WAY RADIOS O3Head_6875946m01.book Page 2 Tuesday, November 1, 2011 12:00 PM English mASTRO ® APX™ O3 Control Head Mobile RadioQuick Reference Card Product Safety and RF Exposure Compliance ATTENTION! This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 6881095C99) to ensure compliance with RF energy exposure limits. Radio Controls Radio On/OffAdjusting VolumeSelecting a ZoneSelecting a Channel Receiving and Transmitting (Conventional Mode) Receiving and Transmitting (Trunked Mode) Sending an Emergency Alarm To exit emergency at any time, press and hold the Emergency button. Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio. !  Press the Power On/Off button to toggle the power on or off. Press the Up arrow on the Volume Rocker to increase volume. ORPress the Down arrow on the Volume Rocker to decrease the volume. 1 f or a to ZONE . 2 Press the Menu Select button directly below Zone The display shows the current zone and channel. 3 f or a until the desired zone is displayed. 4 Press H or the PTT button to confirm the selected zone number. 5 Press the PTT button to begin transmitting on the displayed zone channel. 1 Press the Mode Rocker Up or Down to the desired channel.OR f or a to Chan and press the Menu Select button directly below Chan . The display shows the current zone and channel. 2 Press the Mode Rocker Up or Down to the desired channel. 3 Press H or the PTT button to confirm the channel. 4 Press the PTT button to transmit on the displayed zone channel. 1 Listen for a transmission. 2 Adjust the Volume Rocker if necessary. 3 If you hear no activity, press and hold the PTT button to start your conversation. 1 Press the PTT button. 2 If you hear two, short, high-pitched tones, or if you hear no tone and the red t indicator lights steadily, then proceed with your message. 3 Release the PTT button to receive (listen). 1 Press the preprogrammed Emergency button. A tone sounds and the display shows Emergency . 2 A dispatcher acknowledgment Ack Received display follows.AND, Trunking Only:A high-pitched tone indicates that the alarm has been received by the trunked system’s central controller. 3 Press and hold the emergency button or the PTT button to return to normal operation. *PMLN5591D* PMLN5591D Programmable Button (Top) Orange Button Power On/Off Button Programmable Button (Purple) Programmable Button (1-Dot) Push-to-Talk (PTT) Button Programmable Button (2-Dot) Volume Rocker Home Button Keypad Data Feature Button 4-Way Navigation Button Mode Rocker Menu Select Button LED Indicator Microphone O3Head_6875946m01.book Page 3 Tuesday, November 1, 2011 12:00 PM English Sending an Emergency Call (Trunking Only) To exit emergency at any time, press and hold the Emergency button. Sending a Silent Emergency Alarm If silent emergency alarm is used with emergency call, pressing the PTT button exits the silent mode and initiates the emergency call.. Display Status Icons 1 Press preprogrammed Emergency button. 2 A tone sounds and the display shows Emergency . ORA short low-pitched tone sounds when the selected channel does not support emergency. 3 Press and hold the PTT button. Speak clearly into the microphone. 4 Release the PTT to end the transmission. 1 Press the preprogrammed Emergency button to activate the silent alarm feature. 2 The display does not change; the LED does not light up, and there is no tone. Receiving a call or data.Transmitting a call or data.The more stripes, the stronger the signal strength for the current site (trunking only).Direct radio-to-radio communication or communication through a repeater.On = Direct Off = Repeater O This channel is being monitored.Voice muting the affiliated trunking talkgroup or selected conventional channel.On = Enabled Off = Disabled L = Radio is set at Low power. H = Radio is set at High power. Scanning a scan list.Blinking dot = Detects activity on the Priority-One Channel during scan. Steady dot = Detects activity on the Priority- Two Channel during scan.The vote scan feature is enabled.On = Secure operation. Off = Clear operation. Blinking = Receiving an encrypted voice call. On = AES Secure operation. Off = Clear operation. Blinking = Receiving an encrypted voice call. M K H OR . i k m l On = Location feature enabled, and location signal available. Off = Location feature disabled. Blinking = Location feature enabled, but location signal unavailable. On = User is currently associated with the radio. Off = User is currently not associated with the radio. Blinking = Device registration or user registration with the server failed due to an invalid username or pin. Data activity is present.Indicates that the text entry is currently in hexadecimal mode. G no { Menu Navigation f or a to Menu Entry. o directly below Menu Entry to select. H to exit. f or a to scroll through sub-list. o directly below Menu Entry to select. MOTOROLA, MOTO, MOTOROLA SOLUTIONS and the Stylized M logo are trademarks or registered trademarks of Motorola Trademark Holdings, LLC and are used under license. All other trademarks are the property of their respective owners.© 2009, 2011 by Motorola Solutions, Inc. All Rights Reserved. 10/111303 East Algonquin Road, Schaumburg,Illinous 60196, U.S.A. O3Head_6875946m01.book Page 4 Tuesday, November 1, 2011 12:00 PM Declaration of Conformity English i Declaration of Conformity This declaration is applicable to your radio only if your radio is labeled with the FCC logo shown below. DECLARATION OF CONFORMITYPer FCC CFR 47 Part 2 Section 2.1077(a)Responsible Party Name: Motorola Solutions, Inc.Address: Motorola Solutions, Inc. 1303 East Algonquin Road, Schaumburg, Illinois …

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English Product Safety and RF Energy Exposure Booklet for Mobile Two-Way Radios Installed in Vehicles or as Fixed Site Control Stations ATTENTION! The information provided in this document supersedes the general safety information contained in user guides published prior to January 2008. BEFORE USING THIS RADIO, READ THIS BOOKLET WHICH CONTAINS IMPORTANT OPERATING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS AND CONTROL INFORMATION FOR COMPLIANCE WITH RF ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND INTERNATIONAL STANDARDS. *6881095C99* 6881095C99-H *NNTN7851B* NNTN7851C Motorola Solutions, Inc. 1303 E. Algonquin Rd., Schaumburg, IL 60196, U.S.A. MOTOROLA, MOTO, MOTOROLA SOLUTIONS and the Stylized M logo are trademarks or registered trademarks of Motorola Trademark Holdings, LLC and are used under license. All other trademarks are the property of their respective owners. © 2005 – 2011 Motorola Solutions, Inc. All rights reserved. 2 English RF Energy Exposure Awareness and Control Information, and Operational Instructions for FCC Occupational Use Requirements NOTICE: This radio is intended for use in occupational/controlled conditions, where users have full knowledge of their exposure and can exercise control over their exposure to meet FCC limits. This radio device is NOT authorized for general population, consumer, or any other use. This two-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide communications between two or more users over a distance. It uses radio frequency (RF) energy or radio waves to send and receive calls. RF energy is one form of electromagnetic energy. Other forms include, but are not limited to, sunlight and x-rays. RF energy, however, should not be confused with these other forms of electromagnetic energy, which when used improperly, can cause biological damage. Very high levels of x-rays, for example, can damage tissues and genetic material. Experts in science, engineering, medicine, health, and industry work with organizations to develop standards for safe exposure to RF energy. These standards provide recommended levels of RF exposure for both workers and the general public. These recommended RF exposure levels include substantial margins of protection. All Motorola two-way radios are designed, manufactured, and tested to ensure they meet government-established RF exposure levels. In addition, manufacturers also recommend specific operating instructions to users of two-way radios. These instructions are important because they inform users about RF energy exposure and provide simple procedures on how to control it. 3 English Please refer to the following Web sites for more information on what RF energy exposure is and how to control your exposure to assure compliance with established RF exposure limits. http://www.fcc.gov/oet/rfsafety/rf-faqs.html http://www.osha.gov/SLTC/radiofrequencyradiation/index.html Federal Communication Commission Regulations The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for mobile two-way radios before they can be marketed in the U.S. When two-way radios are used as a consequence of employment, the FCC requires users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a label directing users to specific user awareness information. Your Motorola two-way radio has a RF exposure product label. Also, your Motorola user manual, or separate safety booklet, includes information and operating instructions required to control your RF exposure and to satisfy compliance requirements. Compliance with RF Exposure Standard Your Motorola two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE and ICNIRP exposure limits for occupational/ controlled RF exposure environment at duty factors of up to 50% talk-50% listen and is authorized by the FCC for occupational use only. In terms of measuring RF energy for compliance with the FCC exposure guidelines, your radio antenna radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. 4 English Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines: • United States Federal Communications Commission (FCC), Code of Federal Regulations; 47 CFR et seq. • FCC, OET Bulletin 65 • Institute of Electrical and Electronic Engineers (IEEE) C95.1 • International Commission on Non-Ionizing Radiation Protection (ICNIRP) • Ministry of Health (Canada) Safety Code 6 • Industry Canada RSS-102 • Australian Communications Authority Radiocommunications Standard et seq. • ANATEL ANNEX to Resolution No. 303 et seq. RF Exposure Compliance and Control Guidelines and Operating Instructions To control exposure to yourself and others and to ensure compliance with the RF exposure limits, always adhere to the following procedures. Guidelines: • User awareness instructions should accompany device when transferred to other users. • DO NOT use this device if the operational requirements described herein are not met. 5 English Instructions: •Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) button or, for radios equipped with VOX, speak into the microphone. The red LED will illuminate when the radio is transmitting. To receive calls, release the PTT button, or, for radios equipped with VOX, stop talking. The red LED will extinguish when the radio stops transmitting. Transmitting 50% of the time, or less, is important because this radio generates measurable RF energy exposure only when transmitting (in terms of measuring for standards compliance). •Transmit only when people outside the vehicle are at least the recommend…

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i Foreword This manual covers the O3, O5, and O9 models of the ASTRO ® APX™ 7500 digital mobile radios. It includes all the information necessary to install mid power and high power radios, and configure radio installation inside vehicles. For details on radio operation or component-level troubleshooting, refer to the applicable manuals available separately. A list of related publications is provided in the section “Related Publications,” on page vi. Product Safety and RF Exposure Compliance See “Installation Requirements for Compliance with Radio Frequency (RF) Energy Exposure Safety Standards,” on page ii. Manual Revisions Changes which occur after this manual is printed are described in PMRs (Publication Manual Revisions). These PMRs provide complete replacement pages for all added, changed, and deleted items. To obtain PMRs, go to https://businessonline.motorola.com. Parts Ordering See Appendix A: Replacement Parts Ordering for information on how to obtain replacement parts. For part numbers, refer to the ASTRO APX 7500 Digital Mobile Radio Basic Service Manual (Motorola publication part number 6875964M01). Computer Software Copyrights The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive license to use that arises by operation of law in the sale of a product. Document Copyrights No duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola. Disclaimer The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit described herein; nor does it cover any license under its patent rights nor the rights of others. Trademarks MOTOROLA, the Stylized M logo, FLASHport, and ASTRO are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © 2009, 2010 by Motorola, Inc. ii Installation Requirements for Compliance with Radio Frequency (RF) Energy Exposure Safety Standards ATTENTION! This radio is intended for use in occupational/controlled conditions, where users have full knowledge of their exposure and can exercise control over their exposure to meet FCC limits. This radio device is NOT authorized for general population, consumer, or any other use. To ensure compliance to RF Energy Safety Standards: •Install only Motorola approved antennas and accessories •Be sure that antenna installation is per “Antenna Installation,” on page 2-33 of this manual •Be sure that Product Safety and RF Safety Booklet enclosed with this radio is available to the end user upon completion of the installation of this radio Before using this product, the operator must be familiar with the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with each radio (Motorola Publication part number 6881095C99) to ensure compliance with Radio Frequency (RF) energy exposure limits. For a list of Motorola-approved antennas and other accessories, visit the following web site which lists approved accessories for your radio model: http://www.motorola.com/governmentandenterprise. Table of Contents iii 6878215A01 Table of Contents Foreword ..........................................................................................................i Product Safety and RF Exposure Compliance .............................................................................................i Manual Revisions .........................................................................................................................................i Parts Ordering ..............................................................................................................................................i Computer Software Copyrights ....................................................................................................................i Document Copyrights ...................................................................................................................................i Disclaimer.....................................................................................................................................................i Trademarks ..................................................................................................................................................i Installation Requirements for Compliance with Radio Frequency (RF) Energy Exposure Safety Standards .......................ii Mobile Radio Model Numbering Scheme....................................................xi Commercial Warranty ....................................................................…

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6878215A01 Standard Configurations: Completing the Installation2-43 2.8Completing the Installation Complete the installation by connecting the speaker to the accessory cable; verify the ignition sense wire is attached according to planned ignition sense; attach the accessory cable into J600; verify the control head is attached to either the TIB or the CAN extension cable; and then attach the power cable to the back of the transceiver. 6878215A01 Notes 2-44Standard Configurations Chapter 3 Universal Relay Controller Installation The Universal Relay Controller (URC) is an extension of and an orderable accessory for O9 control head. URC is used to control high power switching peripherals, e.g. lightbar. URC works on all lightbars which can be controlled by power application. URC is connected to the transceiver's GCAI port. The URC design consists of a microcontroller and uses 10 relays to control the switching device. A separate ground for isolation exists between the relay and MCU sections, which is provided by the use of iCoupler from Analog Devices. Each relay is connected to an output with 15 A fuse. The maximum load allowed on each output is 12 A. Two cables, each with the maximum of 60 A, can be used to connect to the input connector at the bus bar. Each cable is connected with a 60 A circuit breaker. One-wire EEPROM is employed to enable GCAI to recognize the URC accessory ID. CPS can be used to program the relay patterns. When installing URC, make sure to plan the installation carefully and leave additional room in the front and rear of the box for cabling and accessory connections; and also to the sides of the radio so that you may access and install the trunnion screws. The recommended mounting location for URC is in the car trunk, either next to the transceiver or within the area not further than 4.5 m away from the transceiver. Ensure that sufficient cooling is provided. Do not cover URC with baggage, blankets, etc. 3.1Universal Relay Controller Mounting The mounting location must be accessible and visible. Select a location that permits routing the cable as directly as possible. NOTE:For optimum URC performance, orient the mounting trunnion as shown in Figure 3-1. Figure 3-1. Universal Relay Controller Orientation An adjustable trunnion, which allows a number of mounting positions, is supplied for mounting the URC. The installation must not interfere with the operation of the vehicle or its accessories. Do not backfeed power into URC. ! C a u t i o n 6878215A01 3-2Universal Relay Controller Installation: Universal Relay Controller Mounting Install the URC as follows: 1. Use the URC trunnion as a template to mark the mounting holes; drill 5/32" holes. If mounting on a plastic surface, use a metal backing plate. 2. Attach the trunnion bracket using all four 10 – 16" x 5/8" self-tapping screws provided. 3. Temporarily install the URC (adjust for proper viewing angle) and fasten it to the trunnion with two wing screws. Test the installation to ensure that the unit is securely locked in place. Figure 3-2. Universal Relay Controller Installation Exploded View ADJUST THE UNIVERSAL RELAY CONTROLLER TO DESIRED ANGLE AND SECURE WITH WING SCREWS USE FOUR MOUNTING SCREWS ON ALL INSTALLATIONS TRUNNION DRILL FOUR 5/32'' HOLES IN MOUNTING SURFACE MOUNTING SURFACE IMPORTANT USE A METAL BACKING PLATE (NOT SUPPLIED) IF MOUNTING TRUNNION ON PLASTIC OR UNSTABLE SURFACE 6878215A01 Universal Relay Controller Installation: O9 Universal Relay Controller Cable Assembly3-3 3.2O9 Universal Relay Controller Cable Assembly 3.2.1Power Cable 1. Remove the cap nut of power cable gland assembly, and insert the power cable through the cap nut and neoprene seal in the cable gland body. Use power cable with either AWG 6 or AWG 8 only (recommended OD range of cable is 5.5 mm to 9 mm) that is able to withstand 80 A and 50 A respectively, to ensure water sealing of the controller. User can decide to install one or two power cables based on the requirements. The power cables (A+) are not supplied. 2. The loose end of the power cable with cable strip length 7.94 mm (5/16”) is then placed on the power lug and secured down by a set screw. The cap nut is then reassembled with tightening torque 18 lb-in. 3. The other end of the power cable should be connected to circuit breaker (Motorola part number 40012006001) end which indicates "AUX" and then, to power supply on the other end which indicates "BAT", instead of connecting to power supply directly. 4. Repeat steps 1 to 3 to install the second power cable, if required. 5. If only one power cable is installed, it is recommended to cover the other side of the power cable gland with power cable gland seal with tightening torque 18 lb-in. 3.2.2Ground Cable 1. Remove the cap nut of ground cable gland assembly, insert the ground cable through the cap nut and then reassemble the cap nut. Use ground cable with AWG 14 only (recommended OD range of cable is 2 mm to 4 mm) that is able to withstand 5 A. The ground cables (A+) are not supplied. NOTE:The ground is used to switch the relays, and not act as a ground to the actual device being controlled. 2. The loose end of the ground cable with cable strip length 7.94 mm (5/16”) is then connected to a two-pin terminal block. Both pins on the terminal block are inter-connected and either pin can be used. The cap nut is then reassembled with tightening torque 7 lb-in. Figure 3-3. Power and Ground Cable Glands Ground Cable Gland Power Cable Gland 6878215A01 3-4Universal Relay Controller Installation: O9 Universal Relay Controller Cable Assembly Figure 3-4. Cable Gland Assembly with Gasket 3.2.3Wires 1. Assemble the wires into the lightbar gasket retainer and lightbar gasket. The URC can support lightbars through control wires with outer diameter ranging from 1.52 mm to 3.77 mm (0.06” to 0.148”), with wire gages ranging from AWG 12 – 20. 2. Each individual loose wire (prior to stripping off the wire jacket) needs to be inserted one at a tim…

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English RF Energy Exposure and Product Safety Guide for Mobile Two-Way Radios Installed in Vehicles, Vessels or as Fixed Site Control Stations ATTENTION! The information provided in this document supersedes the general safety information contained in user guides published prior to January 2008. BEFORE USING THIS RADIO, READ THIS BOOKLET WHICH CONTAINS IMPORTANT OPERATING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS AND CONTROL INFORMATION FOR COMPLIANCE WITH RF ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND INTERNATIONAL STANDARDS. *6881095C99* 6881095C99-J *NNTN7851D* NNTN7851D Motorola Solutions, Inc. 1303 E. Algonquin Rd., Schaumburg, IL 60196, U.S.A. MOTOROLA, MOTO, MOTOROLA SOLUTIONS and the Stylized M logo are trademarks or registered trademarks of Motorola Trademark Holdings, LLC and are used under license. All other trademarks are the property of their respective owners. © 2005 – 2012 Motorola Solutions, Inc. All rights reserved. 6881095C99_SafetyM_Eng.fm Page 1 Tuesday, March 20, 2012 2:43 PM 2 English RF Energy Exposure Awareness and Control Information, and Operational Instructions for FCC Occupational Use Requirements NOTICE: This radio is intended for use in occupational/controlled conditions, where users have full knowledge of their exposure and can exercise control over their exposure to meet FCC limits. This radio device is NOT authorized for general population, consumer, or any other use. This two-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide communications between two or more users over a distance. It uses radio frequency (RF) energy or radio waves to send and receive calls. RF energy is one form of electromagnetic energy. Other forms include, but are not limited to, sunlight and x-rays. RF energy, however, should not be confused with these other forms of electromagnetic energy, which when used improperly, can cause biological damage. Very high levels of x-rays, for example, can damage tissues and genetic material. Experts in science, engineering, medicine, health, and industry work with organizations to develop standards for safe exposure to RF energy. These standards provide recommended levels of RF exposure for both workers and the general public. These recommended RF exposure levels include substantial margins of protection. All Motorola two-way radios are designed, manufactured, and tested to ensure they meet government-established RF exposure levels. In addition, manufacturers also recommend specific operating instructions to users of two-way radios. These instructions are important because they inform users about RF energy exposure and provide simple procedures on how to control it. 6881095C99_SafetyM_Eng.fm Page 2 Tuesday, March 20, 2012 2:43 PM 3 English Please refer to the following Web sites for more information on what RF energy exposure is and how to control your exposure to assure compliance with established RF exposure limits. http://www.fcc.gov/oet/rfsafety/rf-faqs.html http://www.osha.gov/SLTC/radiofrequencyradiation/index.html Federal Communication Commission Regulations The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for mobile two-way radios before they can be marketed in the U.S. When two-way radios are used as a consequence of employment, the FCC requires users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a label directing users to specific user awareness information. Your Motorola two-way radio has a RF exposure product label. Also, your Motorola user manual, or separate safety booklet, includes information and operating instructions required to control your RF exposure and to satisfy compliance requirements. Compliance with RF Exposure Standard Your Motorola two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE and ICNIRP exposure limits for occupational/ controlled RF exposure environment at duty factors of up to 50% talk-50% listen and is authorized by the FCC for occupational use only. In terms of measuring RF energy for compliance with the FCC exposure guidelines, your radio antenna radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. 6881095C99_SafetyM_Eng.fm Page 3 Tuesday, March 20, 2012 2:43 PM 4 English Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines: • United States Federal Communications Commission (FCC), Code of Federal Regulations; 47 CFR et seq. • FCC, OET Bulletin 65 • Institute of Electrical and Electronic Engineers (IEEE) C95.1 • International Commission on Non-Ionizing Radiation Protection (ICNIRP) • Ministry of Health (Canada) Safety Code 6 • Industry Canada RSS-102 • Australian Communications Authority Radiocommunications Standard et seq. • ANATEL ANNEX to Resolution No. 303 et seq. RF Exposure Compliance and Control Guidelines and Operating Instructions To control exposure to yourself and others and to ensure compliance with the RF exposure limits, always adhere to the following procedures. Guidelines: • User awareness instructions should accompany device when transferred to other users. • DO NOT use this device if the operational requirements described herein are not met. 6881095C99_SafetyM_Eng.fm Page 4 Tuesday, March 20, 2012 2:43 PM 5 English Instructions: •Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) button or, for radios equipped with VOX, speak into the microphone. The red LED will illuminate when the radio is transmitting. To receive calls, release the PTT button, or, for radios equipped with VOX, stop talking. The red LED will extinguish when the radio stops tran…

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