BK Technologies GMH599 VHF Mobile Transceiver User Manual Manual Section 1

RELM WIRELESS CORP. - BK RADIO VHF Mobile Transceiver Manual Section 1

Manual Section 1

Specifications are subject to change without notice.BK RADIOPage 1-1SECTION IGENERAL INFORMATION1.1 INTRODUCTIONThis manual contains information about the physical, mechanical, and electrical characteristics of the BKRadio GMH Flex•Mode Series mobile VHF radios.1.2 DESCRIPTIONThe GMH Flex•Mode Series radio is a mobile VHF FM transceiver covering the frequency range of136MHz to 174MHz. The GMH features an alphanumeric eight-character vacuum fluorescent display,allowing the channels to be named for easy user recognition.An arrow on the vacuum fluorescent display points to each front mounted push button that is active. Thefive push buttons can be programmed with the following functions:Standard Functions Optional FunctionsMON Monitor Squelch Noise TA Repeater Talk Around GSC Group ScanSCN Channel Scan CG Code Guard Disable SQL Squelch AdjustPRI Priority Scan GRP Channel Group ACC Accessory 1PA Public Address SPK External Speaker ACC Accessory 2HOM Home Channel NXT Next Scan Channel ACC Accessory 3LPW Low Power SelectThe microphone connector provides an RS-232 interface for control by a keypad microphone, and fordealer programming of alphanumeric labels, push button functions, channel frequencies, Code Guard™values, and Dual Tone Multiple Frequency/Automatic Numeric Identifier (DTMF/ANI) encode information.Figure 1-1 CONTROLS
General Information GMH Series VHF RadioSpecifications are subject to change without notice.Page 1-2BK RADIO1.3 TECHNICAL CHARACTERISTICSFREQUENCY RANGE 136–174MHzCHANNELS 320 (20 groups of 16 channels)OPERATING VOLTAGE 13.6 Vdc Negative groundOPERATIONAL FEATURESFluorescent Alphanumeric DIsplay IncludedEnhanced User CG ProgrammableCode Guard Squelch (CTCSS & CDCSS) ProgrammableTime Out Timer ProgrammableFrequency Display ProgrammableUser Select Scan ProgrammableDual Priority Scan ProgrammableBusy Channel Lockout ProgrammableBusy Channel Indicator ProgrammableDTMF ANI ProgrammableTalk-back Scan ProgrammableInterstitial Frequency Capability ProgrammablePRIMARY POWER INPUTReceive @13.8V 1.0 AmperesTransmit @ 13.6V 16.0 AmperesStandby @ 13.8V 5 AmperesOPERATING TEMPERATURE -30° to +60° CPHYSICAL DIMENSIONSWidth 6 in.Depth 9.38 in.Height 2.12 in.Weight 5 lbs.FREQUENCY STABILITY ± 2.5 PPMCHANNEL SPACING 25/30 kHz and 12.5/15 kHzCHANNEL INCREMENTS 6.25/2.5 kHzANTENNA CONNECTOR MINI UHFFCC IDENTIFICATION NUMBER Pending
GMH Series VHF Radio General InformationSpecifications are subject to change without notice.BK RADIOPage 1-3TRANSMITTER`25/30 12.5/15RF OUTPUT POWER 15 to 50 Watts 15 to 50 WattsOPERATING FREQUENCY SPREAD 38 MHz 38 MHzMODULATION DEVIATION ± 5 kHz ± 2.5 kHzSPURIOUS AND HARMONICS 80dB 80dBHUM AND NOISE 50dB 45dBAUDIO DISTORTION 3% 3%ANTENNA OUTPUT IMPEDENCE 50 Ohms 50 OhmsAUDIO RESPONSE +1 to –3dB +1 to –3dBRECEIVER25/30 12.5/15SENSITIVITY: 12dB SINAD 0.28µV0.28µVFREQUENCY SPREAD 38 MHz 38 MHzSELECTIVITY 75dB 63dBSPURIOUS INCLUDING IMAGE 80dB 80dBINTERMODULATION 75dB 63dBMAX AUDIO OUTPUT (5% DISTORTION) 4 Watts 4 WattsAUDIO FREQUENCY LOAD 3.2 Ohms 3.2 OhmsINPUT IMPEDENCE 50 Ohms 50 OhmsAUDIO RESPONSE +1 to –3dB +1 to –3dBHUM AND NOISE -45 dB -45 dB1.4 ACCESSORIESA wide variety of optional accessories are available for the GMH mobile radios. Contact your BK Radiodealer for complete information.1.5 LICENSE REQUIREMENTSThis equipment must be licensed by the Federal Communications Commission (FCC) before it may beused. Your BK Radio dealer can assist you in filing the appropriate application for the FCC, and willprogram each radio with your authorized frequencies and signaling codes.1.6 SERVICE INFORMATIONIf you need service, contact your local BK Radio dealer equipped to service your radio. If you find itimpractical to have service performed by your local dealer, contact BK Radio at the address below:BK Radio, Inc.ATTN: Customer Service7505 Technology DriveWest Melbourne, FL 32904Voice (800) 422-6281FAX (407) 953-7986

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