Operating instructions
Table of Contents  DMH Series VHF Radio 
Page ii  BK RADIO 
2.2.3.7 TRANSMIT FREQUENCY................................................................................... 2-15 
2.2.3.8 TRANSMIT MODE............................................................................................... 2-15 
2.2.3.9  TRANSMIT ANALOG CHANNEL GUARD .......................................................... 2-15 
2.2.3.10 TRANSMIT NAC.................................................................................................. 2-16 
2.2.3.11  TALK GROUP ID ................................................................................................. 2-16 
2.2.3.12  TRANSMIT SECURE MODE (ENCRYPTED OPERATION ONLY).................... 2-16 
2.2.3.13  TRANSMIT KEY REFERENCE (ENCRYPTED OPERATION ONLY) ................ 2-16 
2.2.3.14  TRANSMIT KEY LOCK (ENCRYPTED OPERATION ONLY)............................. 2-17 
2.2.3.15 CHANNEL LABEL................................................................................................ 2-17 
2.2.3.16  REVIEW CHANNEL SETTINGS ......................................................................... 2-17 
2.2.3.17  PROGRAM ANOTHER CHANNEL...................................................................... 2-17 
2.2.4  EXIT PROGRAMMING MODE ............................................................................................ 2-17 
2.3  CLONING RADIO SETTINGS.................................................................................................... 2-18 
2.3.1  SPECIAL CLONING INSTRUCTIONS................................................................................. 2-19 
2.3.2  SCAN LIST CLONING ......................................................................................................... 2-19 
2.4  CTCSS CHANNEL GUARD VALUES ........................................................................................ 2-20 
2.5  CDCSS CHANNEL GUARD VALUES........................................................................................ 2-20 
2.6  QUICK REFERENCE - CHANNEL 0.......................................................................................... 2-21 
FIGURE 2-1 INSTALLATION – DASH MOUNT ....................................................................................... 2-3 
SECTION III 
OPERATION 
3.1 INTRODUCTION .......................................................................................................................... 3-1 
3.1.1 FEATURES ............................................................................................................................ 3-1 
3.2 FCC REQUIREMENTS ................................................................................................................ 3-1 
3.2.1  RF ENERGY EXPOSURE AWARENESS & CONTROL INFORMATION, AND 
  OPERATIONAL INSTRUCTIONS FOR FCC OCCUPATIONAL USE REQUIREMENTS .... 3-2 
3.2.2  FEDERAL COMMUNICATIONS COMMISSION REGULATIONS ........................................ 3-2 
3.2.3  COMPLIANCE WITH RF EXPOSURE STANDARDS........................................................... 3-3 
3.2.4  INDUSTRY CANADA COMPLIANCE .................................................................................... 3-3 
3.2.5  RF EXPOSURE COMPLIANCE & CONTROL GUIDELINES AND OPERATING 
INSTRUCTIONS ....................................................................................................................3-3 
3.3 SAFETY PRECAUTIONS............................................................................................................. 3-4 
3.4 RADIO CONTROLS ..................................................................................................................... 3-4 
3.5 BASIC OPERATION..................................................................................................................... 3-4 
3.5.1 RECEIVE................................................................................................................................ 3-4 
3.5.2 TRANSMIT............................................................................................................................. 3-5 
3.6  CHANNEL GUARD OPERATION ................................................................................................ 3-5 
3.6.1  ANALOG SQUELCH CONTROL ........................................................................................... 3-5 
3.6.2  APCO PROJECT 25 SQUELCH CONTROL ......................................................................... 3-5 
3.6.3  CHANNEL GUARD RECEIVE ............................................................................................... 3-6 
3.6.4  CHANNEL GUARD TRANSMIT............................................................................................. 3-7 
3.7  MIXED MODE OPERATION ........................................................................................................3-7 
3.7.1  MIXED MODE TALKBACK .................................................................................................... 3-7 
3.8 SECURE OPERATION................................................................................................................. 3-8 
3.8.1  TRANSMIT KEY SELECTION ............................................................................................... 3-8 
3.8.2 ZEROIZATION....................................................................................................................... 3-9 
3.9 CHANNEL GROUPS.................................................................................................................... 3-9 
3.10  PROGRAMMABLE PUSH BUTTONS/MICROPHONE FCN KEY MENU.................................... 3-9 
3.10.1  MICROPHONE KEYPAD LOCK .......................................................................................... 3-10 
3.10.2  PUSH BUTTON CONTROLS .............................................................................................. 3-10 










