FMUser 500W Manuel utilisateur

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Fmuser.org 500W and 1KW

Analog TV Transmitter

User’s Manual

www.fmuser.org

Overview:

This product is the all solid-state Single-channel TV Transmitter, it adopts

professional TV exciter, and it can use the single/duel exciter configuration,

switching automatically.

This transmitter has a variety of linear and non-linear pre-correction function,

carrier frequency offset, and precision bias (with external precision reference

source) function.

It can prefabricate and control the half-power output, and it has remote control

telemetry interface.

The power amplifier used LDMOS FET, the analog and digital are both

compatible, and it used high-quality switch parallel power.

The power amplifier and power supply are both used hot-plug devices.

The power loss and standing wave of the one-time synthesis power combiner is

small.

The module of power amplifier display the working parameters in real-time.

The whole machine has the protection of over-current, over temperature, over

power and over-standing wave ratio.

The master touch screen displays the working parameters of the whole machine

and the module of power amplifier (PA) in real-time.

The 1KW transmitter is installed in one 19inch chassis; it’s suitable for medium

or small TV station.

Features:

●The whole machine is single-channel, image with audio together.

●The redundant configuration design can reduce the rate of inactive to zero.

The exciter redundancy design: the main exciter and its spare exciter can switch

automatically (the spare exciter is optional). When the main exciter broke down,

it can switch to the spare exciter uninterrupted.

The power amplifier redundancy design: multiple amplifiers integrated; the

modules of PA are high-consistency. These two exciters are the spare one with

each other and can exchange easily.

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The power supply redundancy design: parallel current sharing power from

multiple switching power supply; the computer can monitor power supply’s

working condition and adjust its working condition automatically.

●The management and monitoring are intelligent and on network, it has the

external PC interface.

●It has the technical data detection, monitoring systems and full-featured

computer control software with auto-diagnostic function. All technical

parameters can be read through the LCD display panel.

●Comprehensive protection measures can reduce the damage of equipments.

This machine has protection about no video; VSWR is too large, overheating,

over-stimulus, missing phase protection and lightning protection. The switch has

protection about overvoltage, over current, under voltage, over temperature,

short circuit and lightning protection.

●All power supplies are switching power supplies; high efficiency, excellent

regulator range, strong adaptable from the change of the external voltage.

●It adopts modular design concept.

●Hot-pluggable design: power amplifier and switching power are supporting

the Hot-plug, it’s easy to debug and maintenance; improve the reliability.

●The fan is built-in the chassis, the transmitter has a compact structure and a

beautiful shape.

Technical Specifications:

Overall performances:

1. Working frequency：UHF 13~48 Channel arbitrary choice

2. Output power：500W/1KW

3. Output impedance：50Ω

4. VSWR of output load impedance：≤1.12

5. Inter-modulation distortion：≤-50dB

6. Useless transmission：In adjacent channel≤-40dB

Out adjacent channel≤-60dB

7. RF output interface：Φ40

8. Power supply：Three-phase 380V Power Consumption

2.5KW

9. Shape size：1070mm×667mm×955mm

10.Weight：150KG

Image performance：

1. Video frequency input level：1VP-P positive polarity

2. Video frequency input impedance：75Ω

3. DG：±5%

4. DP：±5°

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5. Luminance nonlinear：≤10%

6. Group delay：≤±60ns

7. Signal-to-clutter ration of low frequency period interference: ≥50dB

Sound performance:

1. Audio input level：0dBm±6dB

2. Audio input impedance：10KΩ (imbalance)

600Ω (Balance)

3. Maximum frequency deviation：±50KHz

4. Harmonic distortion：≤1%

5. The amplitude frequency characteristics: ±1dB

6. Signal-to -clutter：≥60dB

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Please notice this：

1. Read safety notice first。

2. A 50 Ohm dummy load or antenna and cable must be

connected before turning power on, Avoid water going into

the connecters or the cable.

3. Exciter’s operating frequency must be set to the same

frequency of the transmitter.

4. Please read System Control Logic section to understand

how the system works.

5. Setting all parameters before turning on amplifier’s

power (Please read the Power On Sequence section).

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Contents

Safety Notice-----------------------------------------------------------------4

Special Reminds-------------------------------------------------------------4

1. Power on Sequence ------------------------------------------------------5

2. Control System Introduction ------------------------------------------7

3. Operation Instructions -------------------------------------------------10

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Safety Notice

1.1 Please read the following safety points, in order to avoid accidents and prevent

connectors to be broken.

1.2 Only the qualified maintenance workers can operate the device.

1.3

．．．

．

revent

．．．．．．

from

．．．．fire and body injury

．．．．．．．．．．．．．．．．．

a. Use proper power cord. Other wise, it may cause the fire;

b. Connect the machine to ground through a wire with resistance less than 4

Ohm to prevent from electrical shock.

c. Use the proper fuse.

d. Keep good ventilation.

1.4 Please don’t disassemble and repair by yourself when it’s broken down.

．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．

Please

send to the professional service department to solve the problems.

1.5 Please don’t install the machine in the moisture place;

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Please notice this:

1.The 50Ωdummy load or antenna and cable must be rightly

connected, carefully keep away water into connecters and cable.

2.The design of the transmitter is an integral structure. It gathers the

whole display operation on the LCD display screen, completely

realized the software, the operation is very simple and rapidly. Please

ensure you have read through the following statement about the

software’s use illustration before you turn on the equipment.

Safety Notice

1. Please read the following safety points, in order to avoid the

accidents and prevent the connecting machines to be broken.

2. Only the qualified maintenance workers can operate the service.

3. P

．

revent the fire and the

．．．．．．．．．．．．．．．．．．．

bodily injury

．．．．．．．．．．．．

e. Use the proper wire. If not, it will cause the fire and the bodily

injury;

f. Ensure the machine connect the ground. Please confirm whether

the machine has connected the ground, through the wire and the

lead, to prevent the electric shock.

g. Use the proper fuse. Please use the stipulated type and rating

fuse.

h. Provide good ventilation. This machine adopts the natural

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convective radiation. Fix it correctly to keep it radiating well.

4. Please don’t disassemble and repair by yourself when it’s broken

．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．

down.

．．．．．

Please send to the professional service department to solve

the problems.

CAUTION：Please don’t assemble the machine in the moist

environment;

Please don’t assemble the machine in the easy

exploding environment;

Please don’t repair by yourself.

5. If you have any other questions, please connect with us.

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Overview

This series TV transmitter is an excellent product that owns

the highest and newest technology. The whole machine adopts

the latest TV signal processing technology.

Ce manuel convient aux modèles suivants

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