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astra 1N vs eutelsat signal strength

Discussion in 'Audio Visual' started by soloheadbeg, 16 Apr 2012.

  1. soloheadbeg

    soloheadbeg

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    I recently installed a freesat satellite and have aligned it in the 28.2 to 28.5 SE direction. I get 100% strength and quality from the astra 1n channels e.g bbc and itv but the max i seem to get from the nearby eutelsat channels is about 60/60 (with the exception of euronews which is 80/80). I have the skew on the lnb at '2' as recommended for the rep of ireland. No matter how much I tweak the elevation and azimuthal angle the max I can get from the eutelsat channels is in general 60/60. I am concerned about rain fade. Any suggestions would be appreciated.
     
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  3. Sam Gangee

    Sam Gangee

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    I suspect that whatever you are using to make the measurement is either seeing the entire frequency spectrum and averaging it or looking at a single spot frequency. Either way, it's impossible to make a comparison on that basis.

    Also bear in mind that the Astra-1N "spot beam" on the UK will appear much stronger than the Eutelsat wide beam transmissions.

    What is more important is the Bit Error Ratio or "signal quality". That will give a better idea of the signal robustness.

    Your *exact* location and dish size will obviously make a big difference to reception.
     
  4. soloheadbeg

    soloheadbeg

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    Thanks for the reply. I'm using the triax 537 set top box to tell me the signal strength and quality.

    Cheers
     
  5. plugwash

    plugwash

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    I'd suggest trying it for a bit and if you have problems with those channels then get a bigger dish.
     
  6. Sam Gangee

    Sam Gangee

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    In that case it will be calculating for one specific frequency. It will be either the transponder frequency of the currently selected programme or the default transponder frequency - whatever that is.

    Obviously if you are comparing a narrow beam 60 Watt transponder with a wide beam 50 Watt transponder, you will see a significant difference and it's not something that can be fixed without (as stated above) installing a larger dish.
     
  7. Sam Gangee

    Sam Gangee

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    However, you could try aligning your dish on the weaker satellite and using the offset LNB for the stronger. I'm assuming you are using a DiSEqC switch.
     
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