Lineing up Chor%$

Discussion in 'Digital TV - UK & Europe' started by Shinzy, Nov 8, 2008.

  1. Shinzy

    Shinzy Member

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    Does the aerial need to be vertial or Horizontal? Has anyone any success with aerial from well known website with Chor%$
     
  2. DesB

    DesB Regular member

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    Not sure what you mean... but would imagine if you try both and see which one works!!
     
  3. glog

    glog Member

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    It depends on which transmitter you are aiming at.In general, the main bigger, transmitters transmit Horizontally and the more local, less powerfull "beambenders" transmit vertically.

    I have had no problems at all setting up the Yagi Integrated aerials.
    Despite being not of great build quality, they appear to do the job very well.

    The output frequency is shifted up 440Mhz compared to standard choru$ aerial set up so instead of doing auto scan you will probably have to do manual scan from 658Mhz upwards at 8Mhz intervals.
     
  4. Shinzy

    Shinzy Member

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    Aiming at collon co. Louth
     
  5. Shinzy

    Shinzy Member

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    Did you use a downconvertor power unit to power aerial?
     
  6. glog

    glog Member

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    I don't know what you mean.
    The aerial has an integrated downconverter and comes with a power inserter.

    I know nothing about the transmitters in your area.
     
    Last edited: Nov 8, 2008
  7. Shinzy

    Shinzy Member

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    My problem is that all neighbours are using grid aerials and i have no mesh grid behind mine. Should i still get a signal?
     
  8. glog

    glog Member

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    The Yagi Aerial with integrated Downconverter is a different type of aerial than the standard Choru$ Mesh grid aerial.

    It should be fine once it is polarised the right way, pointing at the transmitter and with the power inserter in-line.

    These aerials are not designed to use a mesh grid.

    The only thing different about these aerials is the output frequency range of the downconverter, which is shifted by 440 MHz as explained above.
     
  9. Shinzy

    Shinzy Member

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    Should i get a signal with the aerial from iw3ntabo$.com
    I have a yagi aerial for normal tv with an rte aerial off it. This aerial looks like an arrow. Its working perfect for normal tv i can even get terrestial freeview with it. If i was to connect my setup to it would i have to remove the rte aerial and all amps etc.. or should i try and put some kind og mesh around the aerial i have. I know the box is working as i have a mate with Choru$ and it works perfect in his houe put he is paying money. Any help is much appericated.
     
  10. glog

    glog Member

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    You are confusing me.What type of aerial are you trying? Do you have an aerial ? Did you buy an aerial from SatandcabXX.co.uk?


    All my references to a Yagi aerial with integrated downcoverter above are relating to the "MMDS Integrated Aerial with Power Supply" which is sold on most of the well known web sites.

    If you have one of these "MMDS Integrated Aerial" you should have no problem.
    As i have said as long as it's polarization is matched to the transmitter you are aiming at ie. H or V, the aerial is actually pointing to a transmitter, the power supply is in line and powered on and you manually scan at 218Mhz shifted up by 440 Mhz ie. start at 658Mhhz at intervals of 8Mhz then you should be OK.

    Other than that i don't know what else i can tell you.
     
  11. Shinzy

    Shinzy Member

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    This is the aerial im using http://www.satandcable.co.uk/s/images/mmdsintegrated.JPG but i am not getting any signal at all. I have tried both vertical and horizontal but no signal at all. what way should i point the aerial at the tramsmitter? I am using the digivox-t. I have also tried using frequency as suggested but nothing. On the pole that im using i have a couple of other aerials would this cause any problems. I have flashed the digivox box with correct firmware i am connecting the power supply to the aerial with the tv side connected to the digivox. Can you give me a known frequency and i can leave that on manual and check signal strength. I must be doing something simple wrong. Any help much Appreciated.
     
  12. glog

    glog Member

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    That aerial should work.

    You could try 778 Mhz (778000 on manual scan).I believe there are channels on this transponder regardless if H or V.

    If you enter that freq you can adjust the direction and watch the signal strength bar.

    I have always pointed the aerial at the transmitter with the downconverter end away from the transmitter.

    You can sometimes tell what is the polarisation in your area by looking at official choru$ aerials of your neighbours.If you can get close enough to see, at the end of the downconverter (away from mesh) there is a small rectangular insert.If this is horizontal to ground the polarisation is H and if its vertical then its V.

    All this is of course assuming you are in line of sight of transmitter.
     
    Last edited: Nov 9, 2008
  13. Shinzy

    Shinzy Member

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    Ill try that and see. I have direct line of sight of transmitter. Should there be a mesh around the aerial or is that aerial good enough.
     
  14. Shinzy

    Shinzy Member

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    Do you have to be bang on with aerial to get signal like a normal tv or what kind of tolerance is there. Like can you point in the general direction of the transmitter.
     
  15. glog

    glog Member

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    That aerial is good enough.They are not designed to have mesh around them.

    I have one installed and get more than adequate signal from a transmitter 30 miles away.

    With regard to positioning, I think i read somewhere that you have about 15 degrees to play with.Which is quite a lot.I have found that within this 'wedge' of alignment your signal quality will more or less stay the same.

    In my experience they are really very straight forward to align.
    No where near as much accuracy or adjustment needed compared to say you were installling an Astra Sat dish.



     
    Last edited: Nov 9, 2008
  16. Shinzy

    Shinzy Member

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    I must have something wrong with my connection. I take the cable from the aerial and connect it to the side that says downconvertor and then the tv side is connected to the antenna in on digivox. Is this right?
     
  17. Dilljen

    Dilljen Member

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    Hi,

    Just a question on the aerial from Sat and Cable that you are talking about in the thread. Will this aerial work on NT* as well or is it only good for Choru$? I am in an area with NT* only available, any idea where I can get an area that will work?
     
  18. glog

    glog Member

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    Shinzy: That sounds right.
    I presume your power inserter is plugged in and your signal cable is going into the correct connector on back of Digibox ?

    Dilljen: I don't know anything about N*L MMDS
     
  19. Shinzy

    Shinzy Member

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    I have aerial plugged into antenna on digivox-t box. This cable comes off power unit with tv wrote on it and aerial going to cable goes to the other side of the power unit with downconvertor on it.

    Do you know what voltage should be comming out of power unit maybe that is blown?

    I taught Nt% and Choru$ are the same company. I dont know if there is a difference in service.
     
  20. Shinzy

    Shinzy Member

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    Please help guys. I need to check if my power supply unit for Choru$ is working please help please. My head is wrecked
     

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