Re: Problems with ITV channels: Freeview
 

That's not true. It's nothing to do with light rays. The problem is that the sun produces electro-magnetic noise at all frequencies including the satellite frequencies. When the sun and the satellite are both on axis of the dish those radio signals compete with one another.

Re: Problems with ITV channels: Freeview
 

Sounds like what he said, but in different words. ;-)

Re: Problems with ITV channels: Freeview
 

Not at all. The cloud stops light, whereas the radio signals from the satellite and the sun would both be attenuated by the cloud to the same degree.

Re: Problems with ITV channels: Freeview
 

Like he said... "The signal is blocked by the suns (rays) noise (being the different word) being reflected back into the LNB"
Us mere mortals only know about the suns rays, not the suns noise beams. ;-) ;-)

Re: Problems with ITV channels: Freeview
 

"Block" means to obstruct by placing an obstacle in the way. Since the sun is further away than the satellite it is not physically possible for it to "block" anything coming from the satellite.

Re: Problems with ITV channels: Freeview
 

You just told me it was being blocked by the suns noise frequencies, although you didn`t actually say blocked, but competes ?
If one is stronger then surely it blocks the other signal ?

Re: Problems with ITV channels: Freeview
 

either way, something from the sun stops the signal


I like the easy to understand 'blocked by the sun's rays' layman's version myself:thumbup:

Re: Problems with ITV channels: Freeview
 

If anyone is interested you may like some light reading:

http://www.geo-orbit.org/sizepgs/Noise.html :eek:

Re: Problems with ITV channels: Freeview
 

Was that a deliberate pun?

However an interesting article though I was wondering when it would get to solar noise but found it in the end.

Sorry JDR but I thought it supported the Huevos position quite clearly and you were being a trifle patronising.

Bigger Jim

Re: Problems with ITV channels: Freeview
 

Where was the patronizing ?, I just said it was the same type of explanation, just in different words.

Re: Problems with ITV channels: Freeview
 

Disaster! :( We had a storm last night which blew the satellite dish off its fixed post almost causing it to fall from the top of the building. The dish needs to be replaced, the LNB is totally damaged, and the cable is out of position and dangling over a neighbour´s terrace. :cry_smile: On investigation we realised that the dish had been very badly and dangerously installed. We called the installer and asked him to come urgently as we were worried that the dish might fall and damage someone else´s property, or injure someone. He eventually showed up late this afternoon and asked us for 250 euros to fix everything. We were totally shocked as we only installed the equipment 5 months ago and believed that everything would be covered under warranty. But he told us that the equipment on the roof is not covered because the damage was caused by wind. And he said the only piece of equipment covered under the one year guarantee is the box. :cry_smile::cry_smile::cry_smile: So we sent him away. (We later checked his website which says that all equipment is guaranteed for 12 months). :(

I´m gutted; I can´t watch X Factor tonight. ;)

Re: Problems with ITV channels: Freeview
 

unfortuatly i have seen a fair few dishes installed badly and failed in strong winds - some of them were where the installers used quick dry cement which just does not hold the dish, others where they made a square of concrete blocks and put the stand in the middle and filled the middle with concrete and when wind blew the dish over, the stand and middle of this square square went with the dish leaving a perfect square of concrtee blocks.....

i normally use cable attached to the dish supports and anchored to another wall or point to if i feel the dish is exposed...gives a bit more stability in the wind...

Re: Problems with ITV channels: Freeview
 

How do you build a ground support to avoid this?

Re: Problems with ITV channels: Freeview
 

Here's a good start! Almost hurricane proof.

[IMG]http://i273.photobucket.com/albums/j...21/SatDish.jpg[/IMG]

Re: Problems with ITV channels: Freeview
 

you built a concrete base.
you make it a one piece concrete base
1m x 1m x 25cm high
it is atleast 250kgs
has rebar in there also

no concrete blocks

http://www.satandpcguy.com/Site/Dishes.htm has an example of a one piece concrete base before we put cable stays on...

if you make the base from concrete blocks i have found that the in the ones that have failed the concrete blocks have not been added anything to the base at all...it is only the concrete in the centre of the blocks that is holding the dish, which is not much when wind catches the dish, and pulls the stand out from the square of concrete block...and with some of the dry concrete mix bases i have seen i have actually managed to push a base apart using my fingers it was that bad. but hte worst example is the one on the page where they had drilled a few holes in to the roof of the appartment block (yeah - drilling holes into a roof!!) to bolt the dish to the roof and put a yeso mix around. shocking.