Digital tv transmitters

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Digital Solid State Television Transmitters

The DBT Series is the latest evolution of the digital TV transmitters fully compatible with all digital TV international standards (DVB-T/H, DVB-T2, ISDB T/Tb, ATSC, DTMB) and suitable for SFN (Single Frequency Network) and MFN (Multi Frequency Network) applications in VHF band (DBTV) and UHF band (DBTU). The Transmitter is fully broadband.

Available also in Dual Cast configuration with analog TV modulation included.



HI-ADCTM technology

The DBT Series is realized with the new HI-ADC technology. Using latest generation LDMOS RF devices with ultra-linear characteristics, higher performances have been obtained for digital television:

  • Higher modulation quality.
  • Higher RMS output power in digital operations compared to previous technologies.
  • Extremely low heating due to increased efficiency.
  • High safety devices from load mismatch.

High efficiency "Doherty" amplification

The DBT Series can be equipped with high efficiency Doherty amplification technology (DHT option) to increase overall efficiency over 40%.


High Quality Digital Performances

  • Shoulder attenuation > 38 dB.
  • M.E.R. > 35 dB.
  • Output frequency response ± 0.5 dB.

Control logic unit

A powerful control logic unit allows a complete control of the transmitter through front panel LCD display. In case of remote control option, a complete control through WEB (including Web Server) and/or SNMP is available.


Measures and alarm indications on front panel

User friendly interface with LCD display and pushbuttons for an easy setup of all parameters are present on the transmitter front panel: all the main parameters and alarm indications are available 

  • Forward and reflected power.
  • Supply voltage and absorbed current of each single pallet.
  • Internal heat-sink temperature.
  • Alarm indication for VSWR, over-temperature, overdrive.

Trimmers available from the front panel to adjust the threshold of:

  • Overdrive protection.
  • VSWR protection.

Complete remote control system

DBT series has an extremely complete Web server, SNMP, GSM or SMS remote control system, available as option.



Air cooling

The DBT series oversized air cooling system widely extends transistor life. The amplifier modules are equipped with externally mounted redundant fans to allow easy and fast cleaning, or eventual replacement, without opening or removing any module and without interrupting the transmitter operation.


Liquid Cooling

An oversize heat exchanger, single or double (optional), suitable for outdoor or indoor installation, and equipped with single or double (optional) pump system for maximum redundancy, is the main component of the powerful liquid cooling system. DB liquid cooling system assures high reliability, cooling efficiency and easy installation, thanks to the special design of liquid cooled heat-sinks inside the amplifier and low pressure liquid distribution. This system is designed to successfully face every hard climate condition.


Meets or exceeds all international standards

For safety and electrical specifications.

DBTV SERIES

MODEL

Working band

DIGITAL OUTPUT POWER

DVB-T / DVB-T2 / ISDB / ISDB-Tb / T-DMB (Wrms)*

DIGITAL OUTPUT POWER ATSC (Wrms)*

Output connector

DBTV 60

VHF

60

80

N

DBTV 110

VHF

110

130

N

DBTV 200

VHF

200

250

DIN 7/16

DBTV 350

VHF

350

500

DIN 7/16

DBTV 500

VHF

500

750

EIA 7/8

DBTV 700

VHF

700

1000

EIA 7/8

DBTV 1000

VHF

1000

1500

EIA 1+5/8

DBTV 1400

VHF

1400

2000

EIA 1+5/8

DBTV 2500

VHF

2500

3500

EIA 1+5/8

DBTV 5000

VHF

5000

7000

EIA 3+1/8

DBTV 10000

VHF

10000

14000

EIA 4+1/2

* output power measure before filter


DBTU SERIES

MODEL

Working band

DIGITAL OUTPUT POWER

DVB-T / DVB-T2 / ISDB / ISDB-Tb / T-DMB (Wrms)*

DIGITAL OUTPUT POWER ATSC (Wrms)*

Output connector

DBTU 60

UHF

60

80

N

DBTU 110

UHF

110

130

N

DBTU 200

UHF

200

250

DIN 7/16

DBTU 350

UHF

350

500

DIN 7/16

DBTU 500

UHF

500

750

EIA 7/8

DBTU 700

UHF

700

1000

EIA 7/8

DBTU 1000

UHF

1000

1500

EIA 1+5/8

DBTU 1400

UHF

1400

2000

EIA 1+5/8

DBTU 2500

UHF

2500

3500

EIA 1+5/8

DBTU 5000

UHF

5000

7000

EIA 3+1/8

DBTU 10000

UHF

10000

14000

EIA 4+1/2

* output power measure before filter


All specifications are subject to change without notice.