best coaxial cable

Discussion in 'Satellite TV, Sky TV & FreeSat' started by craig7, Aug 19, 2013.

  1. craig7

    craig7
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    folks what would you recommend is the best coaxial cable to buy? one which carries most voltage / power / strongest signal etc...

    thanks
     
  2. kevkbuk

    kevkbuk
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  3. craig7

    craig7
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    thanks, it would be 15 meters
     
  4. Trollslayer

    Trollslayer
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    15 metres isn't a problem with decent cable.
     
  5. bobbyg85

    bobbyg85
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    Again depends what it's purpose is, if its for sky tv you're best with ct63 shotgun cable, or as the other guy days wf100 or ct100. Virgin use RG6, you generally get about 1db loss for every 10m of cable you use
     
  6. excollier

    excollier
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    I always, without exception, fit Webro WF100 or Triax TX100. It saves any future problems. I have used it up to 50m without any problems, and I'm sure it would go a little further than that without having to step up to WF125 or similar.
     
  7. pedro2000uk

    pedro2000uk
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    Webro has the lower loss as it's near pure copper Triax is much tougher as it's copper has an additive but loses c. 6% which is a good trade off in some situations. The bigger the number HH100 HH125 HH165 HH233 = bigger area / dia. = the lower the loss and better shielding but it gets expensive
     
  8. craig7

    craig7
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    okay folks, thanks for the reply. the problem i have is my sky f3 box is only getting H polarity channels with the thinner type satellite cable, where as with the thicker sat cable i am getting all the channels, i need to purchase the thicker cable just not sure the name of that type of cable? #

    Thanks.
     
  9. kevkbuk

    kevkbuk
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    Is this the same cable that got only V polarity but works ok with a Sky box???
     
  10. logiciel

    logiciel
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  11. craig7

    craig7
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    hi, both types of cable work fine and on a sky plus hd box (get all channels), however on a sky f3 box with the thicker cable i get all channels working but with the thinner cable i only get H polarity channels, V polarity channels say no signal. I need more of this thicker type cable.

    thanks
     
  12. rolyateel

    rolyateel
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    Any CAI Approved/Benchmarked coaxial is suitable

    Full list here:
    CAI Benchmarked Cable

    WF100 is not the be-all and end-all of coax, and is made in China just like all the others
     
  13. MartinPickering

    MartinPickering
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    For a "universal LNB" the polarisation switching is achieved by changing the applied voltage - either 13v or 18v (nominally). The cable has no discernible effect on this voltage unless the cable is extremely long, in which case you'll lose HORIZONTAL (= 18v) polarised channels. A bad connection (corroded) can have the same effect and is far more likely.

    To lose VERTICALLY polarised channels, you'd need a situation where the voltage was too high. This can happen with some receivers where the LNB voltage (sometimes labelled "power") is set to "high" in the menu. It can also happen with some LNBs (= faulty*). Rarely, it can happen where a receiver is supplying fractionally too high a voltage - usually because the LNB is very efficient and drawing less current than most.

    *Faulty in the sense that it's taking all its power from another receiver and none from the output where the "fault" is present.

    This type of fault can only be diagnosed by measuring the voltage under load. I used to carry a "T" F connector that let me "tap in" to measure it. (This doesn't do the signal any good so it can't be left in circuit.)
     

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