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Rain fade most with TS??

  1. #1
    Platinum Member StarK's Avatar
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    Default Rain fade most with TS??

    Now when i finally have the connection, though yet to receive a drop of rain here...according to this article its having the most problem associated with rains The Telegraph - Calcutta (Kolkata) | Metro | DTH blues for soccer fans

    ... because the charged field created by friction between the raindrops and air particles interferes with the electromagnetic beams carrying the signals...
    ^^And they wrongly state the cause of rain fade in the article

    What has been your experience?? Share it here.
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    what is your fanda?let us know.

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    Outages only occur when there is heavy rain and can last upto 10-15 mins some times. I have noticed that Tata sky has the least outage due to rain although I dont know what causes the outage technically speaking... Airtel DTH is the worst when it comes to outages during rains... it used to stop with slightest of rains.... I got it disconnected.

  4. #4
    Platinum Member StarK's Avatar
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    Quote Originally Posted by shirsho View Post
    what is your fanda?let us know.
    whats is YOUR funda let me know please...

    Quote Originally Posted by Admin View Post
    Outages only occur when there is heavy rain and can last upto 10-15 mins some times. I have noticed that Tata sky has the least outage due to rain although I dont know what causes the outage technically speaking... Airtel DTH is the worst when it comes to outages during rains... it used to stop with slightest of rains.... I got it disconnected.
    Actually i did read your post about it here when i was trying to figure out what to get. Maybe it depends on the location as well...
    Last edited by StarK; 24th June 2010 at 05:13 PM. Reason: Automerged Doublepost
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    i have read the article and don't know much about this phenomenon;that's why i'm asking for your version.

  6. #6
    Platinum Member StarK's Avatar
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    And here are the causes :Rain Fade
    The Causes

    Any satellite communications system network operator using a Ku-Band system (12/14 GHz or higher frequencies) will face the effects of rain fade at some time. But to understand why this weakening occurs with Ku-Band transmissions, you must first understand the causes of rain fade. Two of the most common causes are listed below.

    1. Absorption – Part or all of the energy generated when a radio wave strikes a rain droplet. The droplet is converted to heat energy and absorbed by the droplet.
    2. Scattering – A non-uniform transmission medium (the raindrops in the atmosphere) causes energy to be dispersed from its initial travel direction.

    Scattering can be caused by either refraction or diffraction:

    * Refraction – The refractive index of the water droplets encountered by the radio wave.
    * Diffraction – the travel direction of the radio wave also changes as it propagates around the obstacle in its path (a water droplet).
    Quote Originally Posted by shirsho View Post
    i have read the article and don't know much about this phenomenon;that's why i'm asking for your version.
    Alright... but there's no version of mine as i'm new to ts myself.. and am yet to face any heavy rain,
    there was some light rain here right now and signal strength did not drop even a point..
    but as admin has said, and i have had many people concur that airtel is worse when it comes to rain fade, though i've not compared it myself... so i just don't know whats up with that article.
    Last edited by StarK; 24th June 2010 at 05:51 PM. Reason: Automerged Doublepost
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    When it comes to important matches such as the world cup even slightest outages for about 5mins may account in missing and important goal'. There should be provision during such matches.

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    Default Rain Fade In Tata sky

    Quote Originally Posted by StarK View Post
    And here are the causes :Rain Fade



    Alright... but there's no version of mine as i'm new to ts myself.. and am yet to face any heavy rain,
    there was some light rain here right now and signal strength did not drop even a point..
    but as admin has said, and i have had many people concur that airtel is worse when it comes to rain fade, though i've not compared it myself... so i just don't know whats up with that article.
    Hi,
    I am also a TS subscriber and have experienced breaks due to rain.I am In Mysore very near to Chamundi hill.The location has also "something to do" with this rain fade it seems. May be the signal strength of the Very high frequency KU band wave gets depleted temporarily on "collision " with the water droplets and takes a few mintues to regain the strength in the highly ionised(electrically charged by static electricity)atmosphere.The signal is then "too weak " to be collected and amplified by the LNB.It is to be mentioned herein that the LNB draws 18 watts of power from the STB to amplify the recd signal and send it down to the STB.but it can amplify ONLY IF there is a minimum strength in the recd signal (in dB).It is similar to to the min signal strength in the case of old Yagi antenna where it is specified as 2.5 microohms/metre or 10 dB for the signal booster to amplify it to 35dB for B&W and 50dB for colour TV.Hope I have made it somewhat clear.

  9. #9
    Platinum Member Preeti_20's Avatar
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    Disturbances and no signal appears for all DTH services, so you cant compare Tata Sky with any other DTH provider. Its actually better than many other DTH providers Airtel being one of them.

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    Quote Originally Posted by Preeti_20 View Post
    Disturbances and no signal appears for all DTH services, so you cant compare Tata Sky with any other DTH provider. Its actually better than many other DTH providers Airtel being one of them.
    +1, stop comparing Tata Sky with other DTH coz that prob is with all DTH service and infact as preeti told tatasky is far better than any other in that case too. BTW iam once again repeating.... that problem is not only with DTH but its with cable too but the only difference is they have big big dishes so there signal always remains super strong and thus u get uninterrupted tv...

    Get a big Dish and connect it with you set top box (of any DTH) and see

    So the only thing you can do is increase your current dish signal the more you increase the more you can enjoy even on heavy rains.

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    Is it possible to use one of those large dishes that cable operators use for tata sky? Has any one ever tried this and does it make any difference?

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    Quote Originally Posted by Admin View Post
    Is it possible to use one of those large dishes that cable operators use for tata sky? Has any one ever tried this and does it make any difference?
    Yes. This is very much possible and by using a large dish, it will very much reduce (if not completely eliminate) rain outage.

    The dish and LNB are very generic devices that just capture the signal. The STB is the real thing. As long as dish is properly aligned, it will work.

    Just that the large dish is more difficult to align (the first time) and re-align (in case of disturbed position after a gusty wind storm).
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