DC Audiovisuel - MODULUS 3000 Video Transmitter + Receiver

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VHF Video radio set

In a few words

Modulus 3000 system is intended to transmit the video signals resulting from 4 A, B, C, D sources, each one supplied with a Modulus 3000 transmitter, to Hermes receivers connected to video monitors for the director, the sound department, the producer, in short for every person having to control the various pictures (multi camera, video tape recorders, etc). Each transmitter radiates 750 milliwatts in UHF and is powered by an external wide range supply (from 9 to 36 volts). 56 frequencies, from 700 to 973 MHz, are easily selectable, thus avoiding interferences between Modulus themselves and with radio mikes. The portable Hermes video receivers make it possible to toggle the four A, B, C, or D sources whose frequencies are easily tuned, to the video monitor. The receivers are powered by an external 8 to 28 V supply or by 8 internal AA batteries and they provide a 1 V composite video signal.

Our recommendations:

Be careful, you must avoid powering Modulus 3000 with too high voltage (more than 12 V), because internal wiring is made with small section wires and transmitter could quickly get hot and turn into coal nuts.
For proper powering adjustment, green LED should turn to slight orange.

Despite 56 possible frequencies, it happens that Modulus 3000, considering its great transmitting strength (nearly 15 times more than radio mike), interferes with other radio operating devices. Then, it is advised to insert an antenna attenuator (approx. -10 dB, provided with) which reduces the radiation field strength.

This product is commonly named: Modulus 3000, Modulus, 3000

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