View original (French)

Installation analogique. Telecom 2A/2B => TNT

Larry -  
 Anonymous user -
Hello everyone,

For the past fifteen years, I have been watching the 6 French channels broadcast in analog by Telecom 2A/2B (which has probably changed its name ...) via a satellite dish connected to an analog decoder.

To switch to TNT, following my research, I just bought a Fransat decoder to receive TNT via satellite without changing either the dish or the orientation (I remain towards 5° west).

Concern: signal strength > 80%, but quality 0% => Channel search = 0!

Does anyone have any ideas?

Thank you in advance for your advice.

2 answers

  1. Anonymous user
     
    Digital satellite reception requires very precise adjustment of the dish
    whereas with analog you could make do with approximate settings, in digital everything must be precise
    Check all your connections, and at the same time change the LNB (this must be of the universal type: €10 to €15), change your cable: all of this for an installation that is a bit old
    Start the dish alignment from scratch and be aware that the Fransat satellite is very very close to others, and mistaking one satellite for another is easier than you think: your decoder will indicate a signal but channel search will equal 0
    If you are on the right satellite, your decoder will detect its download frequency and saving will be successful
    Keep in mind that the dish adjustment is a matter of millimeters! Both for elevation and for inclination
    Also consider adjusting the polarization of the LNB: when the dish is tightened and channels are found, position your LNB connection plug perpendicular to the ground
    Slowly rotate it to the left until the signal deteriorates, make a mark on the LNB support, and repeat the same procedure to the right
    The correct inclination of the LNB is located exactly in the middle of the two marks you noted on the LNB support
    All these instructions may seem tedious to you, but they are necessary for the proper functioning of your installation

    Also check out the website telesatellite and numerique, 'how to point a dish', elevation calculation based on your location, LNB choice and testing, etc...
    1
    1. Larry
       
      Thank you for your promptness! I will first follow the lead of a new LNB...
      0
  2. Anonymous user
     
    If the head is about fifteen years old, it is probably of the 'telecom' type.
    Change it to a universal one.
    Remember to put a waterproof cap on the connection of the reception head, a digme of this name (those with gel inside are great), no adhesive tape!!!!!
    This will avoid frequency drift issues of the reception head due to moisture that has entered the head because of a missing or inadequate cap.
    0