Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Sky Digital BSkyB, Freesat & Saorsat support forum
Freesat digital TV support forum
Signal problem re UK tv in South of France - Dec 2013
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="bonnecoste" data-source="post: 887703" data-attributes="member: 402358"><p>Judith, I have 2 suggestions: Ask your installer if he aligned your dish, and adjusted the LNB skew & focus to maximise the "C/N ratio" ,which can only be measured using a professional meter.If yes then ask what measurement he obtained, if not get him to do that,if he doesn't know what C/N ratio is you need to find an installer who does ! The C/N measurement should be maximised and a figure of 13 dB (decibels)(on a sunny day) should give virtually 100% protection against the effects of heavy rain and other atmospheric disturbances. If the measurement is closer to 6 or 7 dB then you will suffer picture breakup/picture loss as soon as it rains. 10-12dB would give you reasonable protection. If he has done this work correctly but been unable to achieve the required result then my second suggestion concerns the LNB.I have no idea what LNB you have but can highly recommend a new type which has a different design previously only used on professional LNBs but costs no more than other conventional LNBs.This made by Octagon, a German company and is available as single, twin, quad, octo versions, I have tested the Octagon Optima PLL model OOLO which has 8 outputs and compared it with 2 other good quality LNBs and the result was equivalent to increasing the dish size by a considerable amount,perhaps 2 sizes. Some people ,some installers might say "all LNBs are the same" but this one is not...It gives an improvement by reducing the amount of a certain kind of noie (phase noise) which is added to the signal and this is particularly effective when signal levels are low, and for HD channels which are the most difficult to receive.....Ask your installer if he knows of these LNBs or has any,Otherwise they can only be obtained from suppliers in Germany or UK as far as I can tell.Mine was from a German supplier on e-bay and there are quite a few.... I attach a picture of a prof meter showing C/N measurement of 17dB with the Octagon LNB ..With another, conventional, LNB the maximum reading was 13dB...4dB is a MASSIVE improvement! Hope this is of some help</p></blockquote><p></p>
[QUOTE="bonnecoste, post: 887703, member: 402358"] Judith, I have 2 suggestions: Ask your installer if he aligned your dish, and adjusted the LNB skew & focus to maximise the "C/N ratio" ,which can only be measured using a professional meter.If yes then ask what measurement he obtained, if not get him to do that,if he doesn't know what C/N ratio is you need to find an installer who does ! The C/N measurement should be maximised and a figure of 13 dB (decibels)(on a sunny day) should give virtually 100% protection against the effects of heavy rain and other atmospheric disturbances. If the measurement is closer to 6 or 7 dB then you will suffer picture breakup/picture loss as soon as it rains. 10-12dB would give you reasonable protection. If he has done this work correctly but been unable to achieve the required result then my second suggestion concerns the LNB.I have no idea what LNB you have but can highly recommend a new type which has a different design previously only used on professional LNBs but costs no more than other conventional LNBs.This made by Octagon, a German company and is available as single, twin, quad, octo versions, I have tested the Octagon Optima PLL model OOLO which has 8 outputs and compared it with 2 other good quality LNBs and the result was equivalent to increasing the dish size by a considerable amount,perhaps 2 sizes. Some people ,some installers might say "all LNBs are the same" but this one is not...It gives an improvement by reducing the amount of a certain kind of noie (phase noise) which is added to the signal and this is particularly effective when signal levels are low, and for HD channels which are the most difficult to receive.....Ask your installer if he knows of these LNBs or has any,Otherwise they can only be obtained from suppliers in Germany or UK as far as I can tell.Mine was from a German supplier on e-bay and there are quite a few.... I attach a picture of a prof meter showing C/N measurement of 17dB with the Octagon LNB ..With another, conventional, LNB the maximum reading was 13dB...4dB is a MASSIVE improvement! Hope this is of some help [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Sky Digital BSkyB, Freesat & Saorsat support forum
Freesat digital TV support forum
Signal problem re UK tv in South of France - Dec 2013
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top