COBHAM H264ENC Guia do Utilizador descarregar pdf (Página 109)

SOLH264TX Broadcast Transmitter

H264TX, H264ENGTX, H264ENC

UNCLASSIFIED

Part A - User Guide

DS000091

Rev 1.2 2013-05-02

UNCLASSIFIED

Page 13-99

Note: When set in Relay mode the TX will not allow selection of video/audio encoder or data

modes (they are forced to OFF) until the unit is no longer in relay mode.

A Digital Relay system can be made by using the chaining interface. A relay uses a

receiver to receive the digital signal on one frequency, and then uses the transmitter to

re-modulate the signal onto another frequency. This technique has the following

advantages:

 Maintains Video Quality

 Does not increase delay

 Maintains encryption.

CAUTION: On the transmitter, you must set up a modulation bit rate which is equal to or

greater than the ASI bit rate coming in. If the ASI bit rate exceeds the modulation bit rate

the link won’t work and you’ll see an Overflow message in the Unit Information page.

Before you Begin

You’ll need:

 A Receiver with ASI out capability

 A Transmitter

 A Chaining Cable

 A PC with the Transmitter Controller software loaded

 A CA0343-2 USB to Lemo communications cable.

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COBHAM H264ENC Guia do Utilizador Página 109