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

Combining SAT and TV into one "drop cable"

  • 24-06-2011 10:34am
    #1
    Registered Users, Registered Users 2 Posts: 231 ✭✭


    Combining SAT and TV into one "drop cable" seems to be possible from my research but has anyone tested FTA and Saorview signal on one cable and what kit did you use?

    Where I am coming from.
    Atempting to combine soarview and fta for parents using current inhouse cable cabling.


Comments

  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    aubhall wrote: »
    Combining SAT and TV into one "drop cable" seems to be possible from my research but has anyone tested FTA and Saorview signal on one cable and what kit did you use?...

    http://www.tvtrade.ie/alltrade-tv-aerial-and-satellite-combiner.html

    Click on the video tab for 'how to' connect.

    Edit 25 Jun 2011 @ 01:05 - Added YouTube link to 'Satellite/TV combiner' video:

    http://www.youtube.com/user/tvtradedave#p/u/17/_vgePlGKvE0


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    aubhall wrote: »
    ...Atempting to combine soarview and fta for parents using current inhouse cable cabling.

    You may have to upgrade existing cable to satellite grade coaxial cable:


  • Closed Accounts Posts: 272 ✭✭Vince Cable


    Click on the video tab for 'how to' connect.

    Don't forget to tighten your f-connectors properly, with a spanner (unlike tvtrade guy).
    Those 'instructional' videos on his site are pretty poor imo.


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    Don't forget to tighten your f-connectors properly, with a spanner (unlike tvtrade guy).
    Those 'instructional' videos on his site are pretty poor imo.
    A bit harsh - video in question (I haven't viewed all of them) I'm sure was made in good faith and intended to be but a quick demonstration, not a masterclass.


  • Closed Accounts Posts: 272 ✭✭Vince Cable


    Leaving connections hand-tight is a basic error (he does it in all the videos involving f-connectors afaics).

    The one about masthead amps will show you his level of technical knowledge; in that particular case he should just show how it's fitted rather than attempt to explain how it works.

    Nothing harsh about it.


  • Advertisement
  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    A bit harsh - video in question (I haven't viewed all of them) I'm sure was made in good faith and intended to be but a quick demonstration, not a masterclass.
    Don't forget to tighten your f-connectors properly, with a spanner (unlike tvtrade guy).
    Those 'instructional' videos on his site are pretty poor imo.
    A bit harsh Pedantic - video in question (I haven't viewed all of them) I'm sure was made in good faith and intended to be but a quick demonstration, not a masterclass.

    To be fair to you Vince, loose F connectors can and do indeed cause problems. Tighten to what extent though? One answer.

    To be fair to video, quote from TV Trade demonstrator (0:54):
    "Ill just quickly go through with you the assembly..."

    Peace to all underwhelmed by this video and hope it is of some help to OP and others.


  • Closed Accounts Posts: 272 ✭✭Vince Cable


    . . . loose F connectors can and do indeed cause problems. Tighten to what extent though?

    Interesting link, I generally try to tighten them just past the point where I can loosen them with my fingers, not being in possession of a suitably small torque wrench.


  • Registered Users, Registered Users 2 Posts: 200 ✭✭Frisian


    If it's more than two rooms you're feeding go with a multiswitch and one (or more) quattro lnb's + Sat IF UHF VHF Outlets.
    Look also here.

    .


  • Registered Users, Registered Users 2 Posts: 60 ✭✭moro_original


    Anyone who doesn't use a torque wrench to tighten their F-type connectors to at least 2.25 Nm really needs to stop and think. It makes me sad to think of all those loose connectors out there, functioning perfectly but being nonetheless slightly less tight than they could be. :(


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    Anyone who doesn't use a torque wrench to tighten their F-type connectors to at least 2.25 Nm really needs to stop and think. It makes me sad to think of all those loose connectors out there, functioning perfectly but being nonetheless slightly less tight than they could be. :(
    :eek:


  • Advertisement
  • Registered Users, Registered Users 2 Posts: 87 ✭✭paulcdub85


    Anyone who doesn't use a torque wrench to tighten their F-type connectors to at least 2.25 Nm really needs to stop and think. It makes me sad to think of all those loose connectors out there, functioning perfectly but being nonetheless slightly less tight than they could be. :(

    :p pmsl


  • Banned (with Prison Access) Posts: 246 ✭✭pelisor2000


    aubhall wrote: »
    Combining SAT and TV into one "drop cable" seems to be possible from my research but has anyone tested FTA and Saorview signal on one cable and what kit did you use?

    Where I am coming from.
    Atempting to combine soarview and fta for parents using current inhouse cable cabling.

    SatWorld.ie sell combiners
    1sat +1 ter 1 out mix
    2sat +1 ter.. 2out mix
    4sat +1 ter 4 out mix


  • Registered Users, Registered Users 2 Posts: 11,341 ✭✭✭✭Tony


    A torque wrench to tighten F connectors ? please tell me this is wind up ?

    Desktop PC Boards discount code on https://www.satellite.ie/ is boards.ie



  • Closed Accounts Posts: 176 ✭✭AstralTV




  • Registered Users, Registered Users 2 Posts: 339 ✭✭ISAA


    AstralTV wrote: »

    Another one for our STANDARDS. :D


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    ISAA wrote: »
    Another one for our STANDARDS. :D

    Surely all ISAA approved installers adhere to the same standards. :confused:


  • Closed Accounts Posts: 176 ✭✭AstralTV


    Surely all ISAA approved installers adhere to the same standards. :confused:

    they do, and if the standard can be improved by use of new tools or methods it will be,


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    AstralTV wrote: »
    they do, and if the standard can be improved by use of new tools or methods it will be,

    As one would expect. No need for snipers then to publicly belittle a particular ISAA member for failing to adhere to the undoubted high standards of your association.


  • Registered Users, Registered Users 2 Posts: 11,341 ✭✭✭✭Tony


    Thought this :D meant it was said in jest.

    Desktop PC Boards discount code on https://www.satellite.ie/ is boards.ie



  • Registered Users, Registered Users 2 Posts: 5,140 ✭✭✭John mac


    connectorization at the F-connector interface

    what torque pressure is correct? :D


  • Advertisement
  • Banned (with Prison Access) Posts: 4,285 ✭✭✭Peter Rhea


    I generally try to tighten them just past the point where I can loosen them with my fingers, not being in possession of a suitably small torque wrench.

    The small plastic box-spanners that come with some diplexers & amps etc. seem to do a good enough job without over tightening (it's not really possible due to their size & construction, seems to effectively limit the torque that can be applied).


  • Registered Users, Registered Users 2 Posts: 60 ✭✭moro_original


    John mac wrote: »
    what torque pressure is correct? :D

    2.25 Nm

    Anything else is wrong. So many connectors, connectorised to the wrong torque. It doesn't bear thinking about. :(


  • Registered Users, Registered Users 2 Posts: 11,341 ✭✭✭✭Tony


    I see many sleepless nights ahead

    Desktop PC Boards discount code on https://www.satellite.ie/ is boards.ie



  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    John mac wrote: »
    what torque pressure is correct? :D

    Already provided a link to interesting answer (by Ron Hanrac, Technical Leader, Cisco Systems) to this question, but here it is again for those who missed it:

    http://www.cable360.net/ct/sections/columns/broadband/39720.html

    'Bottom line' (summarised):

    • We may have been overtightening F connectors, both indoors and outdoors. Well, except for those that weren’t tightened enough in the first place.
    • Connector tightening torque shouldn’t exceed about 1.13 Nm (10 inch-pounds), but definitely needs to be greater than finger tight.
    • Outdoor connectors shouldn’t be tightened as much as previously thought acceptable.
    • Values in the 0.56Nm - 1.24 Nm (5 to 11 inch-pounds) range appear to be about ideal for most applications.
    • Consult with the manufacturer(s) of F connectors and see what tightening torque value is recommended.
    • Anybody currently using torque wrenches that are set for 2.26 Nm - 3.39 Nm (20 inch-pounds to 30 inch-pounds) should consider resetting to a lower value.
    • If you’re not using torque wrenches — and some will argue that using a torque wrench doesn’t always provide consistent torque — how are you ensuring at least reasonably proper connector tightening torque?
    • If connectors are too loose, leakage, ingress, and possibly micro-reflections crop up.
    • Too tight may mean connector and/or mating interface damage and possibly an increase in leakage and ingress.
    Bottom, bottom line:

    Not too tight Moro! :p


  • Closed Accounts Posts: 49 Mexecutioner


    ....So many connectors, connectorised to the wrong torque. It doesn't bear thinking about. :(

    Just because you don't (appear to) understand a seemingly trivial (to you) technical issue, it doesn't follow that there are no important implications for the systems involved.


  • Registered Users, Registered Users 2 Posts: 60 ✭✭moro_original


    Bottom, bottom line:

    Not too tight Moro! :p

    I stand corrected, 1.13 Nm is indeed the torque of kings! :D:)


    It occurs to me, I have a similar problem with my bottle of Football Special. If I tighten the thread too loose, the fizz gets out. Likewise, if I tighten it too much, I cannot enjoy delicious Football Special.

    What is the correct, McDaid's approved torque for Football Special? :p

    mcdaid_indo_836945t.jpg


  • Registered Users, Registered Users 2 Posts: 314 ✭✭PressTheButton


    As per above:
    Consult with the manufacturer...


  • Banned (with Prison Access) Posts: 898 ✭✭✭Liameter


    "How tight?" is really impossible to answer in specific terms of torque because it depends on several factors including thread manufacturing tolerances, plating type and thickness and whether grease is applied.

    See http://www.satcure.co.uk/tech/fconn.htm#tight

    Unless these factors are controlled (i.e. by using a specific manufacturer's plug and socket) then only a very wide range of possible torques can be suggested.

    I came across a particularly good example when fitting cables to a masthead amplifier made by "Vision". The male connector threads were gold plated and it was quite impossible to run the nut of the 'F' plug on by hand. Even with the supplied plastic tool, and grease applied, it wasn't easy.


  • Registered Users, Registered Users 2 Posts: 6,788 ✭✭✭theoneeyedman


    John mac wrote: »
    what torque pressure is correct? :D

    2.25 Nm

    Anything else is wrong. So many connectors, connectorised to the wrong torque. It doesn't bear thinking about. :(
    Please please, won't someone think of the children!!!!


  • Advertisement
  • Closed Accounts Posts: 104 ✭✭MrSneeg


    that satcure article is from 2007 ! (and very poor)
    cheap screw on f conns are useless, bad threads, fall apart etc,
    Use snap and seal or compression, no grease, no almalgy, no hanging from a ladder trying to heat shrink stuff.


Advertisement