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Thread: Toroidal Dish

  1. #1
    DISH CITY Teacher
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    Thumbs up Toroidal Dish


    Dear friends,
    Who are using Toroidal Ku band dish please explain your experience.

    Thank you
    Megahertzpark

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    u ever wondered why you can't see them on roof top

    4 KU Band it's ok. 2 bad it can not receive C Band
    No GUTS!No GLORY!
    .

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    Are there no bigger Toroidal dishes?

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    These Are For Countries And Places With Strict Limits On The No Of Dishes One Can Have In Ones Home. Ie Uk Limit 2.
    Here In Thailand You Can Have 50 So No Need For Torroidal Dishes.

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    Quote Originally Posted by C-BAND View Post
    These Are For Countries And Places With Strict Limits On The No Of Dishes One Can Have In Ones Home. Ie Uk Limit 2.
    Here In Thailand You Can Have 50 So No Need For Torroidal Dishes.
    They are good to receive multiple satellites if they are strong. Too much of signal lose with these dishes?

  6. #6
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    From Lisbon receiving Sirius5, Hotbird13, Astra19 and Astra 28 and no problems at all And not to much complicated to adjust!

    Strongly advise and mine is the shorter one (55cm)!

    Best regards,

    Jc

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    what do toroidal dishes look like
    will appreciate any pictures please.

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    90cm

    some torroidal can mount upto 5 KU LNB's

    more details" http://www.digitalboxen.com/laddahem/wavefrontier55.pdf
    No GUTS!No GLORY!
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  9. #9
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    Quote Originally Posted by Zoren View Post
    u ever wondered why you can't see them on roof top

    4 KU Band it's ok. 2 bad it can not receive C Band
    Actually, it is possable to attach a C-band LNB on the rail, and it will work with the stronger signals, anything with a FEC of 7/8 is not obtainable.


    Quote Originally Posted by lnb15k View Post
    Are there no bigger Toroidal dishes?
    There is a 1.2 meter Torridal made, but there are few about, due to cost and freight charges.


    Quote Originally Posted by Zoren View Post
    some torroidal can mount upto 5 KU LNB's
    I have seen examples of people using 25 LNB's on the rail, this works well where there are satellites set 2 degree's apart, In this way multiply DiseqC switching is used together with 22 hurz switches, or if universial LNB's are used then 12 volt switching is used in place of the 22 hurz switching.
    One torridal owner reported he had LNB's on on the rail and more mounted under the rail. haven't seen pic's of that.
    regards from OZ bassett

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    Quote Originally Posted by bassett View Post
    Actually, it is possable to attach a C-band LNB on the rail, and it will work with the stronger signals, anything with a FEC of 7/8 is not obtainable.




    There is a 1.2 meter Torridal made, but there are few about, due to cost and freight charges.




    I have seen examples of people using 25 LNB's on the rail, this works well where there are satellites set 2 degree's apart, In this way multiply DiseqC switching is used together with 22 hurz switches, or if universial LNB's are used then 12 volt switching is used in place of the 22 hurz switching.
    One torridal owner reported he had LNB's on on the rail and more mounted under the rail. haven't seen pic's of that.
    Thanks zoren and bassett,
    I feel a bit more has been added
    to my knowledge, thanks M8s

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    Thanks Bassett.

    Can we use a big offset dish+small offset dish to make it a Toroidal dish?

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    Dont kid yourself ...setting up multi sat torroidal dishes is very difficult and takes enormous skill and time . Bob Cooper of Satfacts had an article on these recently....see www.apsattv.com and www. bobcooper.tv.

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    Quote Originally Posted by C-BAND View Post
    Dont kid yourself ...setting up multi sat torroidal dishes is very difficult and takes enormous skill and time . Bob Cooper of Satfacts had an article on these recently....see www.apsattv.com and www. bobcooper.tv.
    sad enough i dont have one to experiment on,
    must say this is a real new idea to me
    can i use a normal 90cm offset, and how about the
    reflector, what is the second calculation on focal point
    if reflected.
    anybody back to design and theory.

  14. #14
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    No GUTS!No GLORY!
    .

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    Quote Originally Posted by lnb15k View Post

    Can we use a big offset dish+small offset dish to make it a Toroidal dish?
    The problem is not the dish, but the wave guide, getting the profile correct, and really the cost is quite a lot compaired with a multi-LNB set up on a standard off-set dish


    Quote Originally Posted by C-BAND View Post
    Dont kid yourself ...setting up multi sat torroidal dishes is very difficult and takes enormous skill and time . Bob Cooper of Satfacts had an article on these recently....see www.apsattv.com and www. bobcooper.tv.
    Really, we did one the other week, took all of an hour, The trouble with Cooper is he knows everything about nothing, and in his part of the world, torridial dishes are a complete waste of time as they don't have access to many Ku satellites about 4 on the last count,
    However he is an expert on "self" promotion

    Torridial's are really designed and built for the european scene, where they have a tremendous amount of satellites , spaced one and half to two degrees seperation, and in some cases stacked three deep,

    This link will tell you all you need to know and a lot you won't want to know..

    http://www.digitalboxen.com/laddahem/wavefrontier55.pdf
    regards from OZ bassett

 

 

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