Table Of Contents - DEVA Broadcast DB4004 Maintenance And Operation Instruction Manual

Introduction ........................................................................................................................................ 6
General Information .......................................................................................................................... 7
Product Features ................................................................................................................................ 8
Technical Specifications .................................................................................................................. 9
Block Diagram .............................................................................................................................. 11
Before you start ................................................................................................................................ 12
Safety Precautions ......................................................................................................................... 12
Operating Environment Recommendations................................................................................... 13
Installation Specifications and Precautions regarding the RF Environment. Antenna Consider-
ation. .............................................................................................................................................. 14
Connecting AC Power and Voltage Selection ............................................................................... 15
Panel Indicators, Switches and Connectors................................................................................... 16
Front Panel - Left and Right Areas............................................................................................... 16
Left Area ................................................................................................................................... 16
Right Area ................................................................................................................................. 16
OLED Display ..................................................................................................................... 16
Soft Buttons .......................................................................................................................... 16
Navigational Buttons ........................................................................................................... 16
Rear Panel ..................................................................................................................................... 17
Rear Panel Alarm Terminal .......................................................................................................... 18
Operation .......................................................................................................................................... 19
A Word about Measurement Limitations ....................................................................................... 19
Signal Strength ......................................................................................................................... 19
Multipath Distortion ................................................................................................................. 19
Co-channel Interference ........................................................................................................... 20
First Time POWER ON ................................................................................................................. 21
Front Panel - Readout Section (Left Side) .................................................................................... 22
Phones ...................................................................................................................................... 22
Bargraphs and LED Indicators, Select Buttons ....................................................................... 22
FM MODULATING METERING ........................................................................................ 22
SELECT Button .................................................................................................................... 22
AUDIO DEMOD METERING ............................................................................................. 22
L, R, L+R, L-R ..................................................................................................................... 23
LOSS .................................................................................................................................... 23
Front Panel - LCD Display, Navigational & Soft Buttons (Right Side)........................................ 24
Display ...................................................................................................................................... 24
Header Area .............................................................................................................................. 25
Soft Buttons ............................................................................................................................... 26
Main Screen Working Area ....................................................................................................... 27
Operating Modes and Pages ......................................................................................................... 28
Home Page ............................................................................................................................... 28
"Preset" explained .............................................................................................................. 28
Creating a new Preset .......................................................................................................... 28
Bandscan Page ......................................................................................................................... 29
Span control state: ............................................................................................................... 31
Contents