Premium Digital Modulator

DVB-T Modulator with both HDMI and RF Loop Through (SKU HDMI-DVBT-DX)

Our top-end Digital modulator is now available for those clients who need to achieve more than simply making an HDMI source available to the aerial reticulation system. If a basic modulator is all that is required, then our entry level modulator (SKU HDMI-DVBT) is the ideal choice, however, our premium (deluxe) modulator is a professional quality device offering full control of parameters via a simple key stroke micro-computer interface. In addition to being able to adjust all core digital terrestrial television settings, the following fields are fully editable and customisable:

Service Name, Network Name, Provider Name, TS ID (16 bits), Network ID (16 bits), Original Net ID (16 bits), LCN, NIT Version, Country and Private Data.

As with all digital modulators, this is an HDMI to DVB-T Converter. It allows an HDMI signal to be converted to a DVB-T1 standard digital television signal for distribution via coaxial cables. The output frequency can be set to any channel number within the NZ range and the signal is injected directly into a CATV splitter (or amplifier) to distribute to all TVs in the installation. By choosing a channel frequency carefully, it will coexist with all other current regular TV channels.

Any number of modulators can be connected to the CATV system allowing multiple HDMI sources to be globally available throughout the installation.


  • LED display and push button control of the internal microprocessor to setup and configure the device.
  • Adjustable RF output level.
  • Loop through HDMI for local connection.
  • Loop through RF connection (Aerial Combiner).
  • Wall mountable.
  • Easily programmable and configurable.
  • USB port for software upgrades.


Source Input

Input: 1 HDMI Channel

Video: HDMI 1.4

Video System: 480i, 480p, 576i, 560p, 720p, 1080i, 1080p

Audio: HDMI


Video: HD H.264, MPEG-4 AVC (compression auto adjusts to available bandwidth using DVB-T parameters.)

Video Resolution: 1080p, 1080i, 576p, 576i, 480p, 480i

Video Bit Rate: 384 kbits

DVB Insertion Tables: SDT, NIT

Editable Fields: Service Name, TS ID, Network ID, Original NET ID, LCN, NIT Version.


 Standard DVBT: ETSI EN 300 744

Constellation: QPSK, 16QAM, 64QAM

Guard Interval: 1/4, 1/8, 1/16, 1/32

Code rate: 1/2, 2/3, 3/4, 5/6, 7/8

FFT Carrier Mode: 2K, 8K

Bandwidth: 6MHz, 7MHz, 8MHz

RF Output

Type: 1 Multiplex DVBT with a digital TV service.

Frequency: 177-858 MHz

MER: 30 dB Min

Output Level: 95 dBuV

RF Level Adj: 0 dB – 30 dB

Attenuation Step: 1 dB per step


HDMI In: HDMI source.

HDMI Out: Optional HDMI pass through.

RF Output: 1 DVBT F-connector.

RF Input: Optional RF pass through (combiner) F-connector.

Power Supply: 12 V 1.5 A adaptor (supplied).

User Interface:

Display LCD panel: 2 rows of 16 characters.

Enter Key: Select a parameter or menu.

L/R Keys: Move among menus or characters.

Up/Down keys: Select a value from a field.

Menu Key: Return to start menu.


Size: 35 mm H x 115 mm D x 175 mm W

Weight: 500 g

HDMI Digital Modulator - Deluxe