Motorola Solutions Catalog

7 WWW.COMSOURCEMI.COM 877-5RADIOS FREQUENCY BAND For most general applications, there are 4 categories of frequency bands to consider: • Low Band 29.7 – 37 MHz / 37 – 50 MHz • VHF (Very High Frequency) at 136-174 MHz • UHF (Ultra High Frequency) at 403-512 MHz • 800 / 900 MHz All bands have advantages for specific applications. As a rule, the higher the frequency, the better the in-building penetration. However, as you increase in frequency, you will decrease in range. VHF frequencies (136-174) are better suited for outdoor applications where maximum range is required with little to no obstructions. UHF and the 800 /900 MHz frequencies are better suited for indoor applications or environments with obstructions. Low Band frequency bands propagate farther in the environment, VHF and UHF frequency bands are typically used for conventional two-way radios systems, while 800 / 900 MHz frequency bands are commonly used for trunking two-way radio systems. TWO-WAY RADIO FEATURES A wide variety of features are available to help increase the efficiency, productivity and safety of your workforce. Efficiency/productivity features include integrated data applications that increase a radio’s capability beyond voice communication, and telephone interconnect, which enables radios to talk with a telephone PBX system. Safety features include emergency notification for use during urgent situations and intrinsically safe certifications for hazardous work environments. AMBE+2™ VOCODER The AMBE+2™ Vocoder sets a standard for high-quality, high-performance speech quality at data rates from 2.0 to 9.6 kbps. ARTS II™ /AUTO-RANGE TRANSPOND SYSTEM Designed with user safety in mind when you need to be in contact at all times. ARTS is exclusively available in Motorola radios and informs users when a radio gets out of range with another ARTS-equipped radio. BUSY TONE LOCK OUT (BTLO) If the BCLO (Busy Channel Lockout) feature has been programmed on a channel, the radio will not transmit when a carrier is present. COMPANDER This analog two-way radio feature is used when the device itself has a smaller dynamic range capacity and is required to transmit a large dynamic range. In this technique, the sound waves before transmission are compressed and then transmitted. Thus this allows a large bandwidth transmission over a narrow range device. DIRECT MODE Direct/Dual Capacity Mode is a digital mode feature that enables you to have two communication paths on a single frequency effectively doubling your call capacity without the need for a repeater. DTMF SIGNALING Dual-Tone Multi-Frequency (DTMF) Signaling enables radio users to use the radio keypad to control another device that is pre-programmed to recognize the tones as commands. This feature is commonly used to open/close gates, turn off/on sprinkling systems or place a phone call using the telephone interconnect feature. EMERGENCY CALL Emergency Call allows a radio user, with the push of a button, to send a distress message to all other radio users to indicate an emergency and be given priority to talk. ENHANCED / BASIC PRIVACY Enhanced / Basic Privacy is a technology that allows a transmitting radio to send out a scrambled audio signal and a receiving radio to unscramble that signal. This helps to prevent unauthorized users from listening to sensitive communications. HAZLOC CLASSIFICATION When you’re operating in environments where flammable or explosive gases, vapors or dust may be present, you should consider communications equipment certified for use in a Hazardous Location – often called “HazLoc” IMPRES™ IMPRES is a state-of-the-art, Motorola-exclusive technology that enables communication between the radio and accessory, resulting in the prolonged life of your batteries, longer talk time and clearer audio delivery. INTERNAL VOX VOX, which stands for Voice Activated Transmit is a feature that allows you to use your two-way radio hands-free with compatible audio accessories. VOX compatible headsets RADIO SELECTION GUIDE