c-band satellite setup

Z

zeljko

Hi one question about c-band satellite.
Satellite 55w 58w 78w 91w 97w 99w are all ok with good signal but
101w signal so,so some tp are ok but most tp are not good
103 same as 101w
105 good all tp
107 good all tp
121 no good low signal on all tp
125w some tp not coming at all some tp ok with signal around 68%-72% total 120 channals from this satellite.
127w ok all tp with signal around 70%
131w some tp are ok adn signal around 60%
133w only two tp coming wit signal around 40% but no freezing
135 no signal at all
139w same no signal

What is wrong with my setup.Thanks
 
More information is needed to solve the problem.

What size is the dish, and what part of the world is the dish located?
What is the make/model of lnb?
What is the make/model of the receiver?
Where is the center or due south satellite located?
Which satellite end of your east arc, and which satellite is at the end of your west arc? In other words, what are the satellites on each end? (139 west, and ??? east)

Next, find a strong transponder and a weak transponder for every satellite you can get. Write these transponders down. Then slightly push and pull on the dish while watching the signal strength. Push, pull at the top, bottom, and each side of the dish. Do this while watching the strong and weak transponder. The signal should go down every time the dish is moved. If the signal goes up during this test, make a note of it. Repeat this test for each satellite you can receive.

Also, there is not anything much on 139 West unless you can get the Alaska transponders, which I cannot see or get.
 
Thank you

dish unimesh 7.5 foot mesh dish
freesat v7
Canada Ontario dou south 80,6
139w and 55w east
to cold outside to push dish.
east side is ok with signal only problem from 101w and up when moving west signal dropping.133w signal is around 38%to 45%
 
What is the make/model of lnb?
139 and 137 West should be dead for you. 135-80 = 55. 80-55 = 25. So you move maximum 55 degrees to the West, and a maximum of 25 degrees to the east.

You do not mention anything about 113W and 116.8W, but you do mention good signals at 107 West, which is about 27 degrees, and is about the same distance from center as your 55 degree eastern satellite. In other words, you can move 25-30 degrees in either direction and still have a good signal.

The further away you move from center (80W), the more ANY dish mis-alignments will be noticed. The dish could be set too far east or west, and it is possible the declination or elevation is off. Really hard to tell until you push/pull test on the dish and write down the results. The dish has to be adjusted fairly well to cover 55 degrees in one direction.

It might also help to scan the 113 and 116.8 satellites and do the push/pull test on them. The more information, the easier it is to see problems.
 
Lnb I think is dm international and for 105w and 107w signal is good on 111w and 113w signal is so-so 116w no signal at all but 127w all tp are ok with signal around 70%
55w is max for my motor
 
Verify the pole is plumb and not leaning. A leaning pole can cause problems for which there is no solution except to straighten the pole.

You should not be missing satellites(116w), and then getting satellites farther away (127w). And you should not have some satellites that are weak and are closer to the center (113w) than your satellites that are stronger and farther from center (127w). This is not good at all because it is not consistent.
 
what about your true south sat 81w Arsat? Hit it make sure dish is at top of arc set inclination Only southern ontario is in 113W 117W footprint depend if he is in kitchener or Cochrane even Sudbary well outside 113W footprint. But 101W should be ok so guessing pole not plumb, inclination incorrect, obstruction in line of site. I am in ontario but fairly south about 1.5hr north east of T.O and get all transponders on 101w most 10dBm-13dBm about 65%Q on my 10ft measures 10.5 so not sure what you should be at on 7.5ft.
 
I would go to satbeams.com and look at the active foot print maps for the satellites your trying for, at some locations for some satellites you may need a larger dish then what you have now.

Here is the link to satbeams for 101W, zoom into your location and click on it, this will give you an estimated dish size needed for error free signals on 101W.
http://www.satbeams.com/footprints?norad=36516

And as you can see that some satellites may not be visible at all locations.

And I concur with El Bandido that your mounting pole may be leaning one way, it has to be absolutely vertical side to side and front to back or you will miss satellites on one side or the other, or at ether end on the arc of the Clark belt where all synchronous satellites are located.

Did you first set the dish and LNB up pointing due South at your location? This is important as it first aligns the dish for true tracking, then the next this is to look for an active satellite in the due South direction and adjust the LNB for the maximum signal on an active transponder.

I think the due South bird for your location would be 81W,(Arasat-2) but I don't think there would be an active transponder pointing at your location, you can try for transponder 3850H on that satellite, it has one open channel.
http://sathint.com/arsat-2

Also the LNB needs to be properly aligned to the dish's horizontal axes, if the LNB is a bit skewed to one side or the other you can loose signal strength on some transponders.
 
one question
55w 58w 91w are ok 125w 127w ok but 101w not good signal on some tp 103w so-so 105w and 107wgood all tp 121w low signal
I am in Kitchener
 
New install? or old with recent problems? Suggestion were made. Did you check if pole is plumb? Pole could move due to ground freeze If LNB support is button hook (could droop) or is arms? Did you check the skew is 0 when at 81W and dish is at top of the arc and the polar mount has not turned on pole. If new install did you site survey at dishpointer site to check line of site for the week sats? 7.5ft mesh is not a big dish for c-band but think if you tweek you will get more. Go over all the posters suggestions bet you find the fault.
 
117w is pretty weak at your location for a 7.5'. If your pole is off a bit I would figure out which satellites you want the most and tweak the elevation to get the best compromise and then deal with it in the spring. I have a 7.5' that I am going to upgrade to a 9 or 10' in the spring. It is pretty good on like 55.5w and 58w but if it is not dead on, I lose channels. Very little room for error. I am at 43N.
 
Thanks all for reply
I don't have problem with 55w or 58w or 125w or 127w only with 101w and 103w,from 99w I get all tp with good signal,so I am confuse how 99w is good and 105w is good and only 101w and 103w problem
 
zeljko said:
Thanks all for reply
I don't have problem with 55w or 58w or 125w or 127w only with 101w and 103w,from 99w I get all tp with good signal,so I am confuse how 99w is good and 105w is good and only 101w and 103w problem
Click to expand...
Not all satellites have the same transponder output levels, some are older satellites, also not all satellites have the same footprints, some are setup for specific areas and your in a weak zone.

Checking the footprint for your location by using sabeams.com will help find out.
 
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