User Manual

ManualsBrandsRELM WIRELESS CORP. - BK RADIO ManualsElectronicsVHF Mobile Transceiver

Specifications are subject to change without notice.

BK RADIO

Page 1-1

SECTION I

GENERAL INFORMATION

1.1 INTRODUCTION

This manual contains information about the physical, mechanical, and electrical characteristics of the BK

Radio GMH Flex•Mode Series mobile VHF radios.

1.2 DESCRIPTION

The GMH Flex•Mode Series radio is a mobile VHF FM transceiver covering the frequency range of

136MHz 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. The

five push buttons can be programmed with the following functions:

Standard Functions Optional Functions

MON

Monitor Squelch Noise

Repeater Talk Around

GSC

Group Scan

SCN

Channel Scan

Code Guard Disable

SQL

Squelch Adjust

PRI

Priority Scan

GRP

Channel Group

ACC

Accessory 1

Public Address

SPK

External Speaker

ACC

Accessory 2

HOM

Home Channel

NXT

Next Scan Channel

ACC

Accessory 3

LPW

Low Power Select

The microphone connector provides an RS-232 interface for control by a keypad microphone, and for

dealer 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

Summary of content (3 pages)

PAGE 1
SECTION I GENERAL INFORMATION 1.1 INTRODUCTION This manual contains information about the physical, mechanical, and electrical characteristics of the BK Radio GMH Flex•Mode Series mobile VHF radios. 1.2 DESCRIPTION The GMH Flex•Mode Series radio is a mobile VHF FM transceiver covering the frequency range of 136MHz to 174MHz. The GMH features an alphanumeric eight-character vacuum fluorescent display, allowing the channels to be named for easy user recognition.
PAGE 2
General Information 1.3 GMH Series VHF Radio TECHNICAL CHARACTERISTICS FREQUENCY RANGE 136–174MHz CHANNELS 320 (20 groups of 16 channels) OPERATING VOLTAGE 13.
PAGE 3
GMH Series VHF Radio General Information TRANSMITTER` 25/30 12.5/15 15 to 50 Watts 15 to 50 Watts OPERATING FREQUENCY SPREAD 38 MHz 38 MHz MODULATION DEVIATION ± 5 kHz ± 2.5 kHz SPURIOUS AND HARMONICS 80dB 80dB HUM AND NOISE 50dB 45dB 3% 3% RF OUTPUT POWER AUDIO DISTORTION ANTENNA OUTPUT IMPEDENCE 50 Ohms 50 Ohms +1 to –3dB +1 to –3dB 25/30 12.5/15 SENSITIVITY: 12dB SINAD 0.28µV 0.