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| Thread ID: 103995 | 2009-10-13 04:51:00 | Freeview satellite picture quality. | tut (12033) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 820084 | 2009-10-13 04:51:00 | Has anything been changed lately. My picture quality seems to have improved significantly.Almost like HD at the present. I've done nothing. Cant find anything on the freeview site. |
tut (12033) | ||
| 820085 | 2009-10-13 05:23:00 | Same old, nothing changed as far as I'm aware. Make the most of it! :thumbs: | wratterus (105) | ||
| 820086 | 2009-10-13 07:02:00 | Not AFAIK. Either way its better than analogue:D |
Blam (54) | ||
| 820087 | 2009-10-13 08:58:00 | It is well known that if you have a fine clear day or night that the picture quality does get better as there is less resistance in the air from the weather to disturb your picture, several sky tv techs have told me that much like when it rains you get rain fade. | Hitech (9024) | ||
| 820088 | 2009-10-13 14:42:00 | The picture quality was good before except when it rains. Maybe the recent winds 'adusted' the dish to its optimum position. Whatever, Freeview is magic compared to the one and a half channels I got here before. Couldnt even get radio. |
tut (12033) | ||
| 820089 | 2009-10-14 03:26:00 | with digital signal you basically get the same picture regardless of how good the signal is, until you go to low. thats when it start pixalating etc ie rain fade. the signal is encoded so the receiver can fill in missing data to give you exactly whats sent. but only up to a point. once too much data goes missing you start getting bits of the picture missing. the bigger the dish, the more signal you get, the more signal you can loose before the picture starts to drop out. you can't sight the dish by how good the picture is. once you get past minimum amount of signal picture is basically perfect. i had it with my neighbor. so called professional installer used a satellite finder (which is a cheap hobbyist toy) to sight up the dish. so it was quiet a way out and was getting a fair bit of rain fade. sight it up properly and no more rain fade. |
tweak'e (69) | ||
| 820090 | 2009-10-14 04:21:00 | tweak'e,you suggest that a satellite finder is not a good way to set up a dish. What do you think is a better way. I did mine with a compass and used the degree scale on the dish bracket for elevation. It is only a small dish and with the weather forecast for the next few days I better visit the library. |
tut (12033) | ||
| 820091 | 2009-10-14 05:40:00 | It is well known that if you have a fine clear day or night that the picture quality does get better as there is less resistance in the air from the weather to disturb your picture, several sky tv techs have told me that much like when it rains you get rain fade. That is because sky, being notorious cheapskates, only get their pictures in water colours, naturally in rain the colour washes out. The B&W pictures are pretty safe though. |
R2x1 (4628) | ||
| 820092 | 2009-10-14 20:47:00 | That's very good R2x1. :clap | Richard (739) | ||
| 820093 | 2009-10-14 22:18:00 | tweak'e,you suggest that a satellite finder is not a good way to set up a dish. What do you think is a better way. I did mine with a compass and used the degree scale on the dish bracket for elevation. It is only a small dish and with the weather forecast for the next few days I better visit the library. a proper meter. satellite finder is certainly better than using a compass. they are ok for DIY'ers but professionals should have a proper meter. there is a few other adjustments on the dish (ie align the LNB) which really require functions that sat finders don't have, not to mention when fault finding. a compass is only good for getting it in the rough ballpark. the degree scale on the dish mounts mean bugger all. its only relevant if the actual pole is perfectly vertical. both compass and elevation vary depending on where in the country you live, they are by no means accurate. |
tweak'e (69) | ||
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