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| Thread ID: 65218 | 2006-01-11 05:23:00 | Very odd - TV reception problem | Morgenmuffel (187) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 420069 | 2006-01-11 05:23:00 | OK I am getting a really weird problem for the last hour or so on channel 2 we are losing the signal (ie the screen going blue) but when the signal is there we are often getting "abckids" in black and white with the TV2 audio or we seem to be getting a merged picture of tv2 and abckids, I know it is not the tv as we are getting it on all TVs in the house, my aerial connection is average but normally tv 2 is fine but abit grainy in bad weather any ideas Cheers |
Morgenmuffel (187) | ||
| 420070 | 2006-01-11 05:27:00 | Isn't that fairly common in Invercargill? Channel 2 is low VHF. Australia is only a couple of thousand miles away. Various ionospheric conditions can cause VHF to travel that distance. |
Graham L (2) | ||
| 420071 | 2006-01-11 05:32:00 | we get a similar thing around here. TV1 gets wiped off due to interference from another station. some reports indicate it from australia, others from south island. don't forget it could also be someone with a video sender. older ones used to be VHF and wiped out tv stations in whole neighbourhood. |
tweak'e (69) | ||
| 420072 | 2006-01-15 21:37:00 | TV1 in Auckland is on the same frequency as TV1 in Dunedin. Ordinarily that should not be a problem as TV signals are FM signals and therefore line of sight. In summertime conditions in the ionsphere change. Where TV signals go straight through the majority of the time, that can change and the signal is reflected back and can interfere with Auckland. It is generally known as "skip." Before there were many TV stations in NZ it was not uncommon, when tuning to an unused frequency in NZ, to watch Australian TV which skipped across the Tasman. "Skip" also affects other radio signals at this time of the year. I have heard of the Police radios, which normally can only hear their own area, that can speak to other parts of the country. "Skip" is usually heard over long distances, for example, between Auckland and Christchurch or Dunedin and sometimes Wellington, but rarely Hamilton. I have even heard it from America, but there are so many stations on the same frequencies it is often unintelligable. Roscoe. |
Roscoe (6288) | ||
| 420073 | 2006-01-15 22:40:00 | What kind of antenna are you using? | ninja (1671) | ||
| 420074 | 2006-01-16 06:42:00 | Same bog standard aerial everyone else is using with the uhf one attached to it The strange interference hasn't happened again though |
Morgenmuffel (187) | ||
| 420075 | 2006-01-22 08:55:00 | January is THE time for long-distance TV reception from over the Tasman. All you need is a TV tuned to the low band VHF channels (1, 2 & 3) and when the weather conditions are right it will come in at very good strength. It helps if your antenna is normally oriented in a westerly direction, and if your local signal is weak. Strong local signals tend to block out the aussie transmission and then all you see is intermittent "venetian blinds" running down or up the screen. It also helps if the primary service area of the Oz transmitter lies to the east of the antenna site, then it is beaming straight across the Tasman. If you can tune it in on an unused channel you can get colour and all. The technical name is co-channel interference, enthusiasts call it DX-TV. Cheers Billy 8-{) |
Billy T (70) | ||
| 420076 | 2006-01-22 23:12:00 | I know what the problem is, its the Aliens in their UFO's :lol: :thumbs: | Overdrive_5000 (4950) | ||
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