Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Mullaghanish & Cnoc an Oir - Antenna Advice

  • 07-06-2011 1:15pm
    #1
    Kenny Powers
    Registered Users, Registered Users 2 Posts: 987 ✭✭✭


    Looking for some advice on this, I'm currently in west Clare getting my signal from Mullaghanish Using a small CH 21 H (Group A) Yagi antenna in the attic Digital signal is about 70% Quality is a bit lower picture is fine but the odd time it gets blocky.

    I see now the Cnoc an Oir site is live on CH 47 V (Group B/C) according to the coverage map I should be using this now as its closer. I read on Saortv.info that a K or W group aerial is recommended in case there are channel changes. I also read a W yagi is no good and a Wide Band GRID would be better?

    Can anyone offer some advice on this would I be better off Getting a bigger Group A yagi and sticking with Mullaghanish or can anyone recommend a decent Wide Band Grid with a good gain that isn't going to break the bank that I can point at the Cnoc an Oir site I think I have a wide band yagi lying about also but its just a cheap B&Q job.

    Also is it true that signals at CH21 travel further than signals (of the same power) at CH68?


    Thanks

    KP


Comments

  • #2
    Vince Cable
    Closed Accounts Posts: 272 ✭✭Vince Cable


    I would just try the aerial that's 'lying about', channel 47 is in the best gain area for most wideband yagis.

    And yes, lower frequencies generally 'travel' better than higher.


  • #3
    Kenny Powers
    Registered Users, Registered Users 2 Posts: 987 ✭✭✭Kenny Powers


    The Group A (Red Tab) Antenna I'm using is like this one.


    4ba80.jpg


  • #4
    Vince Cable
    Closed Accounts Posts: 272 ✭✭Vince Cable


    That's a basic 'contract' aerial. If you want to continue receiving from Mullaghanish, moving the aerial outside would improve signal.
    I'd be inclined to go for the closer transmitter, particularly if you have a suitable aerial available (the 'B&Q job' mentioned in the op might do).


  • #5
    Kenny Powers
    Registered Users, Registered Users 2 Posts: 987 ✭✭✭Kenny Powers


    Would a grid work better in the attic?


  • #6
    Vince Cable
    Closed Accounts Posts: 272 ✭✭Vince Cable


    Grid aerials are good for wideband reception as the gain across the band is fairly constant, unlike a wideband Yagi, though the grid has lower peak gain.
    They are also useful in situations where there's no line of sight to the transmitter or where there's signal fading & multipath.
    This may be useful in your attic but then again it may not.


  • Advertisement
Advertisement