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2013-001

Coaxdata: Measurements in shared distribution networks

Description: 


 

Return Path Simulator.
Ref. 7637
Field Strength Meter
H45 / H60
Diplexed filter
Ref. 7654
     

 

Making use of the Meter, check the output of the Return Path Simulator and record it as a reference.

 



 


Possible Solutions:

  1. Return Path Noise (5-30MHz), produced by electronic devices that exist in the headend.
  2. Noise on the distribution infrastructure (Coaxial Network), which can be produced by any outlet with a poor connection, or any device connected to the network, ...

Possible Solutions:

Mandatorily,  insert the Diplexer Filter Ref.7654  to filter out the noise in the return path, so you can mix TV services and Data from Ref.7689.

  • Check the connections of the outlets, to secure that both center conductor and braid are properly performed. If the braid of any of the connections is not properly made, the coaxial cable acts as an antenna which would cause the presence of interfering signals in the headend. This is a very unlikely situation.
  • Find out the possible source of the noise in the distribution network. Once identified, filter out noise sources (Ref.7654) to avoid their interference in the communication with the rest of the outlets of the installation.

 

 

 


 



 

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