Italian manufacturer Promax recently released the DT 504 quadruple input DVB-T modulator.

This unit allows 4 individual AV sources to be combined into one DVB-T channel (4 virtual channels).

The four onboard MPEG2 encoders mean that multiple satellite TV programs could be combined with digital terrestrial channels, allocated their own UHF channel, and displayed on a DVB-T receiver.

As many hotels are now replacing their standard analogue TV sets with plasma or LCD displays having an integral DVB-T tuner, this allows  other services such as satellite or movie channels to be integrated into the existing MATV system.

The unit is mounted into a standard Prolink rack frame and operates from a +12/+5 volt power supply.

The unit is available from Electrocraft for around $2500 per channel. As a typical hotel has several hundred rooms,

and considering the unit allows the introduction of 4 digital channels, this price point is affordable for larger organizations.

Full details are available from Electrocraft on

02 9438 3266.