rpm123
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- Apr 4, 2013
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- My Satellite Setup
- 1.1M Triax motorised dish with tm5402, spiderbox and azbox recievers
- My Location
- London
To give some background, I have a 1.1m motorised Triax dish at my old house on which I receive a pretty good signal across the arc despite the fact that my dish was on a pole attached to my chimney. I use the dish quite a lot for feedhunting, and the signal strength for feeds is generally lower than for channels on the same satellite, so getting the setup right is crucial.
At my new place (again in London, just 4 miles away from my old) I am in the process of installing a 1.1m motorised dish, this time mounted on a pole attached to the wall up on the roof (it's a terraced house)
Nearly all of the setup guides I have read have stressed the importance of an exactly vertical pole. However, some mention a vertical bracket.
Today we struggled to get a good signal consistently across the arc. Astra 28 and Arabsat 26 were stronger than at my old place, but then we lost Hispasat 30. When Hispasat was adjusted to give a strong signal, we lost signal east. Meanwhile, for most of the satellites in the middle, including important feed satellites such as 1W, 12.5W, 7E, 10E, the signal was worse than my old place (I measured signal on most of the satellites with the same receiver, with similar weather conditions at time of measurement).
I pointed out to the installer that the pole wasn't vertical. He told me that it's not the pole that has to be vertical, but the bracket holding the dish. Also, he said the leveller to measure the uprightness of the pole should be used in the middle of the pole , and we couldn't measure this because of the dish and the cables being there. He said you don't measure the straightness of the pole at the top. But I thought surely if the pole is straight at the top, it is also straight in the middle, unless the pole itself is bent?
Furthermore, he said another reason I might get weaker signal in my new place compared with old is because of possible interference from police transmitters, wifi, mobile phone networks and so on (there are no trees or physical obstructions). He also said the night-time and daytime signals vary a lot and the signals can be much stronger at night.
So my questions:
(1) Is he right about the pole? Does the pole HAVE TO BE 100% straight or is it the bracket & clamp that really matter
(2) Is he right about the effects of possible signal interference from other sources and also significant difference at day and night.
I've known him a few years, and he did spend a lot of time adjusting.
To give you an idea, in my old place I get 86% signal on RTVGE on 7E which is enough to give me a decent signal on 7E feeds, but at my new place only 69-75% which isn't. When the dish was adjusted to give 75-80% on 7E, we lost signal on other satellites.
Any advice would be appreciated
At my new place (again in London, just 4 miles away from my old) I am in the process of installing a 1.1m motorised dish, this time mounted on a pole attached to the wall up on the roof (it's a terraced house)
Nearly all of the setup guides I have read have stressed the importance of an exactly vertical pole. However, some mention a vertical bracket.
Today we struggled to get a good signal consistently across the arc. Astra 28 and Arabsat 26 were stronger than at my old place, but then we lost Hispasat 30. When Hispasat was adjusted to give a strong signal, we lost signal east. Meanwhile, for most of the satellites in the middle, including important feed satellites such as 1W, 12.5W, 7E, 10E, the signal was worse than my old place (I measured signal on most of the satellites with the same receiver, with similar weather conditions at time of measurement).
I pointed out to the installer that the pole wasn't vertical. He told me that it's not the pole that has to be vertical, but the bracket holding the dish. Also, he said the leveller to measure the uprightness of the pole should be used in the middle of the pole , and we couldn't measure this because of the dish and the cables being there. He said you don't measure the straightness of the pole at the top. But I thought surely if the pole is straight at the top, it is also straight in the middle, unless the pole itself is bent?
Furthermore, he said another reason I might get weaker signal in my new place compared with old is because of possible interference from police transmitters, wifi, mobile phone networks and so on (there are no trees or physical obstructions). He also said the night-time and daytime signals vary a lot and the signals can be much stronger at night.
So my questions:
(1) Is he right about the pole? Does the pole HAVE TO BE 100% straight or is it the bracket & clamp that really matter
(2) Is he right about the effects of possible signal interference from other sources and also significant difference at day and night.
I've known him a few years, and he did spend a lot of time adjusting.
To give you an idea, in my old place I get 86% signal on RTVGE on 7E which is enough to give me a decent signal on 7E feeds, but at my new place only 69-75% which isn't. When the dish was adjusted to give 75-80% on 7E, we lost signal on other satellites.
Any advice would be appreciated