Specifications ..... 10

Standard Compositions ..... 8

Dimensions ..... 9

Exciter ..... 6

Power Amplifier ..... 7

System Diagram ..... 4

Liquid-Cooling System ..... 5

Features ..... 3

contents

2

Since starting the production of television transmitters in 1952, Toshiba Corporation have been consistent in the design and production philosophy of easy installation, operation and maintenance for the benefit of our customers worldwide.Toshiba have been supplying a great number of TV transmitters to customers worldwide who highly appreciate the high reliability, stability and performances.Toshiba developed an all solid-state 10kW UHF TV transmitter in 1984, and an all solid-state 50kW VHF TV transmitter in 1985; both were the first in the world of their category at the time. Since then Toshiba have been supplying numerous analog TV transmitters around the world. Toshiba started the delivery of the UHF digital terrestrial TV transmitters on the ISDB-T standard to Japanese domestic broadcasters in 2000. Following the 7000-series UHF digital transmitters shipped more than 100 sets to the broadcasters outside Japan, Toshiba is now unveiling the brand-new 8000-series UHF digital / analog TV transmitters.

Located in the western suburb of Tokyo metropolis, Toshiba Fuchu Complex is the largest factory of Toshiba Corporation, boasting of its gigantic area scale of 740,000 square meters, with a wide variety of products for social infrastructures worldwide.The products of Toshiba Fuchu Complex include electric power plants, transportation systems, large scale computer servers, telecommunications systems and elevating machines.Toshiba Fuchu Complex is a large plant of state-of-the-art technologies with thousands of engineers and partners.Toshiba's transmitters for professional broadcasting have been supplied from this Toshiba Fuchu Complex to the customers worldwide.

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TOSHIBA's technologies support wide range ofsocial infrastructure and systemsincluding broadcasting transmitter systems.

3

Features

Key technologyThe 8000-series transmitters have been developed with high technologies and reliability.

Applicable to a variety of standards: DVB-T/H, ATSC, ISDB-T/ISDB-TB *1, Chinese standard, NTSC, PAL and SECAM models are available.

The latest LD-MOS FET chips are employed. All-band transmitter. The exciter and the power amplifiers can cover all the UHF band from 470 to 862 MHz. The 8000-series are digital-ready; and the analog models can be easily modified to digital. The exciter incorporates distortion compensators to allow adaptive compensation of non-linear distortions.

*1: Brazilian digital TV standard

ReliabilityWe always put our highest priority on the “Reliability” in the design.

Simple and rigid connections Hot-swappable power amplifiers

With its spring shutting the liquid coupler, the power amplifiers

can be inserted or extracted even during the operation.

Robust operation under rough conditions The power supply operates normally within +/-15% voltage fluctuations.

The transmitter can operate normally even with the reflection of VSWR of 1.3.

Preventive design Transmitter protection:

When the controller of the transmitter detects any abnormality

in the RF output, reflection, liquid status (temperature, flow shortage,

pressure and/or quantity), it automatically shuts down the system to

protect the system.

The power amplifier protection:

When the power amplifier detects abnormal RF output, reflection and/or temperature,

it shuts down the unit automatically to protect themselves.

Operability Emergency-start switch

With the emergency-start switch equipped at the MCCB panel of the transmitter cabinet, it is possible to re-start manually even when the transmitter controller is damaged.

4

SMPTE 310Mor

DVB-ASI

SMPTE 310Mor

DVB-ASI

RF OUT

BPF

HEAT EXCHANGERPUMP RACKTX CONTROL

EXCITER

EX EXCH PA-1

PA-2

PA-nEXCITER

INTERLOCK REMOTE SIGNAL

*2 *1Sync/Clock*3

1PPS IN10MHz IN

Sync/Clock*3

1PPS IN10MHz IN

AC IN220V / 380V

N-w

ay D

IST

RIB

UTO

R

N-w

ay C

OM

BIN

ER

VIDEO

AUDIO RF OUT

FILTER

HEAT EXCHANGERPUMP RACKTX CONTROL

EXCITER

PA-1

PA-2

PA-n

INTERLOCK REMOTE SIGNAL

AC IN220V / 380V

N-w

ay D

IST

RIB

UTO

R

N-w

ay C

OM

BIN

ER

System Diagram

System diagram of the Digital transmitter ......... Dual Exciter

(Common Amplification)System diagram of the Analog transmitter.........Single Exciter

*1+*2 : ATSC, *2: DVB-T, ISDB-T *3: ISDB-T

5

HEAT EXCHANGER

TRANSMITTERPUMP RACK

FAN

DV

DV

DV

DV

DRAIN DRAIN

DV DV

DV

DRAIN DRAIN

DRAIN

TEMP CONTROL VALVE V

COOLANT VAT

PUMP

PUMP STRAINER

STRAINERVALVE(VARIABLE )

VALVE(VARIABLE )

DRAIN

PA-1PA-2

PA-3

Liquid-Cooling System

Figure 1. Block Diagram of Cooling System

Digital Transmitter

Figure 2. Liquid-cooling system

Pump RackHeat Exchanger

As shown in the Figure-1 and -2, the coolant from the pump rack is fed into the transmitter cubicle from above. Then the coolant is divided into several flows and sent to the shelves of the power amplifiers.The coolant makes heat exchange while flowing through a power amplifier cold plate, and then is sent back through the pipe and to discharge heat from the outlet in the ceiling.The system is designed in a way that an appropriate amount of coolant can always be supplied at an optimum rate across the shelf plates where the power amplifiers are mounted.

FLOW METERFM

LEVEL GAUGELG

LEVEL SWITCHLS

MOTERM

MANUAL VALVE(CLOSE)

TEMP SENSORT

PRESSURE SENSORP

MANUAL VALVE(OPEN)

LGLS

LS

M

FM

T

P

6

Exciter

Block Diagram(for digital)

Feature

EXCITER

The exciter consists of a signal modulator, a frequency converter and a signal compensator.The non-linear distortion compensation improves the equivalent C/N value,since it serves to suppress intermodulation in the power amplifier.The distortion compensation characteristic is kept stable since the compensatorextracts it from the signal arriving from the transmitter for compensating purposes.

Pre-distortion systemThe feedback type pre-distortion system automatically compensates for a non-linear distortion caused by the power amplifier. Since this feature keeps watching the variations in characteristics of the power amplifier, the operation remains stable irrespective of fluctuations in input and output levels and environmental factors including the ambient temperature.

Expanded bandwidthThe exciter can set to any output frequency in all the UHF TV channel (from 470MHz to 862MHz) by means of the synthesizer system.

Non-Iinear distortionsThe exciter incorporates distortion compensators to allow adaptive compensation of non-linear distortions.

RF IN[-10dBm+/-2dB]

RF OUT[+10dBm]

RF LOCALMONITOR

MONITOR OUT

MONITOR OUT

PARALLEL I/ORS-485

10MHz IN

TS1

TS2

1pps IN

SELECT

AC85-253V

MOD PREDISTORTOR

QUAD MOD

QUAD DEMODDETECTOR

SYNTHESYZER

PSPOWERBOARD CONTROL

Operation& Display

FET Control Temperature Date

7

Power Amplifier

Block Diagram

Feature

POWER AMPRIFIER

This is a liquid-cooled power amplifier for a digital/analog UHF TV transmitter,making amplification of the low-level signal output from the exciter.

MaintainabilityThe units are easily mounted and dismounted because a power amplifier and a power supply are combined into one, and also because the power input connector, high-frequency output connector, and control connector are all plug-in type.

Using an innovated LD-MOS FETIncorporating the high efficiency LD-MOS FET, the all-band digital / analog power amplification is realized. With a relatively large ASO (Area of Safe Operation), this power amplifier is free from thermal runaway and markedly resistant to overload. Thus the power amplifier keeps excellent stability.

Reduction in the number of transistors usedThe aggregate number of power-amplifying transistors(LD-MOS FET)) used is now reduced to 12 at the last stage.

Control

RF IN

RS485

AC 220V/380V

DISPLAY

PS

CONTROL

PPA

FAN

REG

FPA

FPA

12W

AY

DIS

T.

12W

AY

CO

MB

.

FET Control

Control Output Power

FET ControlFET Control Temperature DateTemperature Data

RF MONI

Reflect PowerVoltage

*1

*1;Gain Adjustment *2;Phase Adjustment

*2

8

Standard Compositions

Models

DIGITAL

# : StandardA : ATSC B : ISDB-T/ISDB-TB

C : Chinese standard E : DVB-TH : DVB-HG : CCIR System G I : CCIR System IK : CCIR System K M : CCIR System M

: Cooling SystemL : Liquid Cooled Type

: Configuration1 : Single Exciter4 : Dual Exciter7 : Dual TX

: Number of PA

D : Digital TransmitterA : Analog Transmitter

Model Output Power Number of PA

TDU802xL #

TDU803xL #

TDU804xL #

TDU806xL #

TDU808xL #

TDU812xL #

TDU816xL #

1.0kW

1.5kW

2.0kW

3.0kW

4.0kW

6.0kW

8.0kW

2

3

4

6

8

12

16

Please consult us for any output power

outside the above standard line-up.

(Common Amplification)

#8UD T

ANALOG Model Output Power Number of PA

TAU803xL

TAU806xL

TAU812xL

5kW

10kW

20kW

3

6

12

9

Dimensions

2

3

4

6

8

12

16

1.0kW

1.5kW

2.0kW

3.0kW

4.0kW

6.0kW

8.0kW

290

335

380

490

580

940

1120

–

5kW

–

10kW

–

20kW

–

–

335

–

490

–

940

–

630

1260

1200 1950

Please consult us for any output power

outside the above standard line-up.

*1. Common Amplification*2. In case of dual Exciter mode

QuantityofPA

OutputPower

Weight*2

(kg)OutputPower

Weight*2

(kg)

Width(mm)

Depth(mm)

Height(mm)

A, B

DIMENSIONSANALOG*1DIGITAL

C

A B

C

10

SMPTE-310M

6MHz

50 Ω with VSWR <= 1.3

UHF TV channel

470~809MHz

± 0.5dB or better

Within ± 250Hz ( over one month operation )

–

Better than 27dB

Less than -60dB/20mW

Specifications

GENERAL

DIGITAL Item ISDB-T / ISDB-TBDVB-T/HATSC

TS Input

Bandwidth

RF Output : Load

impedance

RF Output :Frequency

Output power stability

Frequency stability

Inter modulation *

Signal to Noise Ratio

Unwanted radiation

DVB-ASI

6MHz / 7MHz/ 8MHz

UHF TV Channel

470 ~ 862MHz

Better than -37dB

–

6MHz

–

Item Rating

AC Input

Voltage

Line frequency

Ambient temperature

Relative humidity

Maximum altitude

Cooling system

3 phase 3 wires or 3 phase 4 wires

200/208/220/380/400/415/440 ± 15%

50/60Hz ± 3%

Indoors 0°C to 45°C

Outdoors -10°C to 45°C or

-30°C to 40°C95% (Max), without condensation

2,500m above sea level ( to be modified upon request )

Liquid Cooled

*Please consult us about the Inter Modulation besides standard specification.

11

(Common Amplification)

ANALOG Item Rating

Type of System

RF Output : Load impedance

RF Output : Frequency range

Output power stability

Frequency Stability

Differential Gain

Differential Phase

AM Noise of Video

- Periodic Radiation

- Harmonic Radiation

Spurious

Incidental Phase Modulation

Intermodulation

(for transmitters with combined

amplification of vision and sound

channels)

C.C.I.R. System-G, I, K, M

50Ω with VSWR <= 1.3

UHF TV Channel, 470~862MHz

± 0.5dB or better

Within ± 250Hz (over one month operation)

Within ± 5% at 4.43MHz (C.C.I.R. System-G, I, K)

Within ± 5% at 3.58MHz (C.C.I.R. System-M)

Within ± 5° at 4.43MHz (C.C.I.R. System-G, I, K)

Within ± 5° at 3.58MHz (C.C.I.R. System-M)

-50dB(p-p) or better

-52dB(rms) or better

Less than -60dB / 20mW

-46dB or less, relative to ± 50kHz deviation during full sinusoidal

modulation of the visual transmitter between 30-15,000Hz.

Phase modulation less than ± 4° (C.C.I.R. System-G, I, K)

-40dB or less, relative to ± 25kHz deviation during full sinusoidal

modulation of the visual transmitter between 30-15,000Hz.

Phase modulation less than ± 4° (C.C.I.R. System- M)

-52 dB or less

Relative to the peak sync level envelope amplitude of the

vision signal.

TOSHIBA CORPORATIONBroadcasting and Network Systems Div.

International Operations Dept.1-1, Shibaura 1-chome, Minato-ku, Tokyo 105-8001, Japan

tel: +81-3-3457-3244 fax: +81-3-5444-9417 hhttttppss::////wwwwww33..ttoosshhiibbaa..ccoo..jjpp//ssnniiss//oovvss//ccoonnttaacctt//bbrrooaaddccaassttiinngg//mmaaiillffoorrmm//ttooppmmaaiill__ee..hhttmm

Attention : The contents herein may be changed without preliminary announcement.

K07002April.2008