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Rain Fade

Diogenes
04-09-2006, 08:38 AM
There appears to be some debate on the rain fade phenomena, there are people out here who claim it doesn't exist. I wanted to start a new thread where people can post their experiences. I am concerned that when D* gets everyone converted to only getting there locals from satellite, there may be many people who lose emergency severe weather notifications during severe weather. I live in Tennessee and during our last bout with severe weather I lost Directv completely, fortunately I am an antenna freak, and I use it for my locals, so I could track the weather situation.

To start off my configuration is a triple LNB system, H10 receiver, during good weather my signal strength shows as:

101 94-97
110 93-95
119 96 - 100

6201jim
04-09-2006, 08:52 AM
Rain fade does exist as we all know. Ku band (approx. 10 GHz) fade is not as severe as Ku band (30 GHz) fade, but the overall effect depends on how much fade margin is engineered into the downlink.
Rain fade is a good reason to use OTA where possible because OTA has no fade problems (rain fade is negligible in the UHF band used for OTA transmission)

WestDC
04-09-2006, 10:14 AM
There appears to be some debate on the rain fade phenomena, there are people out here who claim it doesn't exist. I wanted to start a new thread where people can post their experiences. I am concerned that when D* gets everyone converted to only getting there locals from satellite, there may be many people who lose emergency severe weather notifications during severe weather. I live in Tennessee and during our last bout with severe weather I lost Directv completely, fortunately I am an antenna freak, and I use it for my locals, so I could track the weather situation.

To start off my configuration is a triple LNB system, H10 receiver, during good weather my signal strength shows as:

101 94-97
110 93-95
119 96 - 100

What you had in Tennessee is a FAR CRY from rain fade! In that event anyone who is watching the weather on Sat. Tv either doesn't care for there equipment safety or for ther own personal safety either. Get out the battery raido and tune to your local weather staion if you can not look out your own window..

Just remeber to come in from out of the rain first. :rolleyes:

wolfman730
04-09-2006, 11:02 AM
Good suggestion WESTDC. If your power goes out that OTA antenna isn't worth a damn anyway.

Rick0725
04-09-2006, 11:22 AM
I get rain fade occasionally in the summer during a heavy rainfall with thick cloud cover. Do not always need lightning or severe winds to get that.

It is a pain when it does happen though. It pays off to tweak the set up as much as possible for highest signal strength to lessen the impact.

WestDC
04-09-2006, 11:57 AM
I get rain fade occasionally in the summer during a heavy rainfall with thick cloud cover. Do not always need lightning or severe winds to get that.

It is a pain when it does happen though. It pays off to tweak the set up as much as possible for highest signal strength to lessen the impact.

That Is normal Rain Fade-And a Strong Signal will lessen the problem but not cure it. :hithere:

Rick0725
04-09-2006, 02:22 PM
Thats what lessens the impact means WestDC.

WestDC
04-09-2006, 02:26 PM
Correct :)

Diogenes
04-09-2006, 04:15 PM
Good suggestion WESTDC. If your power goes out that OTA antenna isn't worth a damn anyway.

Unless of course you have generator.

CKN
04-10-2006, 09:28 AM
I live in rural western New York. I will lose the signal in a heavy rain or heavy snow. It has to be raining quite hard to lose the SD channels but not too hard to lose the HD channels. The HD channels will always go out first. Normally this is a short duration issue though. Like a couple minutes. What is annoying is if it loses the signal and the message stays on (Searching for Satellite) for about a minute, the receiver locks up. The only way I can get a picture back is to unplug it and reboot.

Stanley Kritzi
04-10-2006, 10:30 AM
What I'm wondering is: what help does one get from a bigger dish? Obviously, the frequency has a lot to do with it, but with my triple LNB dish and signal strength averaging 90 (long coax runs), will a larger dish, a weather cover, and/or solid copper wire help? What about an amplifier right at the dish?

Or, is occasional rain fade just the way it's going to be? And, speaking of a "larger dish", is D*, Channel Master, or someone else going to have one?

SK

Rainor
04-10-2006, 12:56 PM
In the old days, when the systems were marketed as Directv "DSS" - we usued to call them " DSS - Digital Storm Sensors" hehe.

I can always tell when a thundar storm is headed my way for I'll get the pixelation / screen freeze 1 - 2 minutes before a big storm t-storm happens here in Maryland.

The BIG rain drops are the major cause of rain-fade for me. Really WET Snow does it also.

wolfman730
04-10-2006, 03:36 PM
I have the solution to the problem, we can all install 35' dishes like D* has.

davecramer74
04-12-2006, 07:59 AM
ya, any good downpoor, youll lose directv. Im in california and have lost it about 10 times over 3 years. When i say lose, it means momentarily. A couple minutes at most. Its only when it REALLY pours. Now if your midwest, etc where you get those nasty thunderstorms, probably alot worse.