Crown FM250G, Руководство пользователя

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Rev A
iii
Table of Contents
Section 1—Getting Acquainted
1.1 Your Transmitter ........................................................................................ 1–2
1.2 Applications and Options ............................................................................ 1–3
1.2.1
Stand-Alone............................................................................................ 1–4
1.2.2 Backup ................................................................................................... 1–4
1.2.3 Booster................................................................................................... 1–4
1.2.4 Exciter .................................................................................................... 1–4
1.2.5 Translator............................................................................................... 1–5
1.2.6 Satellator ................................................................................................ 1–6
1.2.7 Nearcasting ............................................................................................ 1–6
1.3 Transmitter/Exciter Specifications .............................................................. 1–7
1.4 Receiver Specifications............................................................................... 1–8
1.5 Safety Considerations ................................................................................. 1–9
1.5.1
Dangers.................................................................................................. 1–9
1.5.2 Warnings................................................................................................ 1–9
1.5.3 Cautions ................................................................................................. 1–9
Section 2—Installation
2.1 Operating Location ......................................................................................2-2
2.2 Power Connections......................................................................................2-2
2.3 Frequency (Channel) Selection ....................................................................2-4
2.3.1
Modulation Compensator ........................................................................2-5
2.3.2 RF Tuning Adjustments ...........................................................................2-5
2.4 Receiver Frequency Selection ......................................................................2-6
2.5 RF Connections ...........................................................................................2-8
2.6 Audio Input Connections .............................................................................2-9
2.7 SCA Input Connections..............................................................................2-10
2.8 Composite Input Connection .....................................................................2-10
2.9 Audio Monitor Connections .......................................................................2-11
2.10 Pre-emphasis Selection .............................................................................2-11
2.11 Processor Bypass Option ..........................................................................2-11
2.12 Program Input Fault Time-out ...................................................................2-12
2.13 Remote I/O Connector ...............................................................................2-12
Section 3—Operation
3.1 FM250G Initial Power-up Procedures ......................................................... 3–2
3.1.1
Power Switch ......................................................................................... 3–3
3.1.2 Carrier Switch......................................................................................... 3–3
3.2 Front Panel Bar-Dot Displays...................................................................... 3–4
3.2.1
Audio Processor Input............................................................................ 3–4
3.2.2 Highband and Wideband Display............................................................ 3–4
3.2.3 Modulation Display................................................................................. 3–4
3.3 Input Gain Switches.................................................................................... 3–5
3.4 Processing Control ..................................................................................... 3–5
3.5 Stereo-Mono Switch ................................................................................... 3–5