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The main unit (Unit 1) which is the first to connect to the TV coax network shall remain in the default settings and the second unit (Unit 2) shall have its settings altered.

 

There are different ways to setup an distribution system with multiple modulators, this guide will cover two different configurations.

 

 

Configuration 1 - Shows the setup with the modulators both connecting to the combiner in parallel, before then being distributed.

 

Configuration 2 - Shows the setup with a loop in and out, two modulators in series before a combiner and distributor.

 

 

It is recommended to use Configuration 1, this is because when the modulators are connected in series (daisy-chained) there is db signal loss through the RF IN and RF OUT, so to keep the signals balanced it is best to combine all units with a dedicated aerial combiner.

 

The main unit (Unit 1) which is the first to connect to the TV coax network shall remain in the default settings and the second unit (Unit 2) shall have its settings altered.

 

TIP - Some aerial splitters work both ways, so they can be used as a combiner instead of a splitter, check the manufacturer for more details.

 

 

 

Additional Modulators

 

Additional modulators can be combined to provide more TV Signal channels from more devices in the TV Distribution system.

 

When combining the signals ensure the settings in bold are incremented.

 

The limit on how many additional modulators can be used, is the number of channels that are available to be used and how many aerials can be combined together.

 

When trying to modulate and combine more than 3 devices together it may be more suitable to be a "Multi Input DVB-T Encoder Modulator".

 

It is not recommended to use configuration 2 with any more than two modulators, as this will cause too much signal loss.