Re: Is 50m too far....


"Jeff Layman" <jmlayman@xxxxxxxxxxxxxxx> wrote in message
news:gl0adm$8dd$1@xxxxxxxxxxxxxxxxxxxx
It is obvious that the OP (in his second posting) was also unaware that
each LNB needs a separate cable to the receiver. In fact, it is pretty
difficult to find this out easily (even if you knew how to ask this in
Google). Why is this piece of most basic information concerning satellite
reception not more widely known?

It's often the case that the basic facts are omitted! I suppose it never
occurs to the cognoscenti to include them. Hence the need to get someone who
knows absolutely nothing about the subject at hand to proof read
instructions meant for others who know absolutely nothing about the subject
at hand! The results can infuriate the writer, but the process is,
nevertherless, essential.

I fell foul of this problem yesterday. The instructions for my new bluetooth
headset say that the starting point for pairing with a phone is that the
item is switched off, but nowhere was I told how to switch it off, or how to
know whether it was on or off.

6. The typical life of cable outdoors is 5 years before an increase in
signal attenuation becomes measurable. (Not necessarily noticeable
except in very heavy rain.) (snip). Ten year old cable (as stated by
Bill) has normally reached its end of life.

If this is really the case we might as well all give up on the current
method of receiving satellite signals and hope something more sensible
comes along which will last 20+ years. Many of us are still watching
terrestrial TV on coax which is 25+ years old without problem. Are you
really saying that anyone with a quad LNB system would have to replace the
4 downleads every 5 - 10 years?
To be realistic, we were discussing extreme downlead lengths. A normal
downlead of 10 metres loses about 3dB, leaving at least another 20dB before
the receive gets unhappy. As long as the damp doesn't cause 'suck out' (very
uneven response across the band with deep deep holes) the problem won't
arise in a normal installation.

The problem is going to arise in the many apartment blocks built during the
recent mad rush for new build housing. Believe me, the installation standard
of very many of the TV systems was abysmal, and over the next few years
there are going to be some mighty rows about it. Retrofitting systems in
occupied buildings costs a fortune, unless the residents are happy to have
surface fixed cables running down their living room walls.

Actually we will have LNBs with optical output soon, connected by fibre to
the receiver.

Bill would have to keep going until he is 110 to keep up with all that
recabling work!
Not long then.

Bill


.

Relevant Pages

  • Re: Is 50m too far....
    ... was also unaware that each LNB needs a separate cable to the receiver. ... We did have two satellite setups about 10-15 years ago - a Wickes 1m ... So 3 cables from LNB? ...
    (uk.tech.digital-tv)
  • Re: Been shopping
    ... If it has only one outlet it may be worth changing the LNB for a quad LNB - that would give you 2 for Sky/Sky+ and 2 for Freesat. ... You could then scrap your Sky subscription but keep the Sky box and just watch the free programs. ... what the hell does one do with all the cables? ... The same would be true of any receiver with twin tuners. ...
    (uk.people.silversurfers)
  • Re: No Satellite Signal, but only on some channels.
    ... If the second receiver exhibits the same symptoms, you definitely have a problem with your dish alignment, LNB and/or the co-ax cabling. ... I'm also not convinced it's a polarisation issue as, as you've also indicated, there's no pattern to the channels that are having problems. ...
    (uk.tech.tv.sky)
  • Re: Has Microsoft killed the Media PC??
    ... The EDID's are the same for both the TV and the Receiver ... cables, and the TV from having a HDCP problem becuase if it's working with ... replicated most everything I had with the old media center that works ... Receiver: Denon AVR-4308CI (HDCP Compliant) ...
    (microsoft.public.windows.mediacenter)
  • Re: Newbies first seperates system
    ... I've been reading around, and I plan to buy from Richer, ... However, if you're thinking of home theatre, I'd seriously consider going for an AV receiver right off the bat. ... There's really nothing to match Yamaha for AV under the £500 mark, and even music replay is pretty good for an AV receiver. ... Contrary to what some people on this group will tell you, it's worth spending a few quid on decent speaker cables. ...
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