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| Thread ID: 69881 | 2006-06-15 04:37:00 | Free to Air Digital TV - will it make a difference? | Rutherford (10399) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 463330 | 2006-06-30 11:57:00 | weak signal is a "snowy" picture not a "mess of colours". colours smeared across the screen is often ghosting related. | tweak'e (69) | ||
| 463331 | 2006-06-30 12:01:00 | Prime watched on the main tv in the house is littered in snow and unstable, watchable (at poor quality) about 70 percent of the time....though the picture has a habit of disapearing for a few seconds at random times.... Other setup is via TV card/PC/ Projector, Coloured snow :( |
Metla (12) | ||
| 463332 | 2006-06-30 12:07:00 | a screenie... www.imagef1.net.nz(TV51).jpg |
Metla (12) | ||
| 463333 | 2006-06-30 12:11:00 | LMAO ! thats not weak signal . . . . . . that no signal what so ever . an amp isn't going to fix that, amping nothing gives you a whole lot of nothing ! check for bad connections or broken cable . |
tweak'e (69) | ||
| 463334 | 2006-06-30 12:16:00 | Like I said, other channels work fine, Plus when a channel is selected that has no signal broadcast there is no colour, and when I rotate the arial I can get a vague image. Connections and cable are fine. |
Metla (12) | ||
| 463335 | 2006-06-30 12:17:00 | Sure that's not a pic of your carpet? My neighbour has one just like it. |
Laura (43) | ||
| 463336 | 2006-06-30 12:20:00 | Sure that's not a pic of your carpet? My neighbour has one just like it. To be honest its a hand created artwork I made in Photoshop, Its taken 4 years to do, If you stare at it long enough 3D images of Hansel and Gretal appear. I've just been waiting for an excuse to show it off.... |
Metla (12) | ||
| 463337 | 2006-06-30 12:22:00 | Tweak, amateur radio operators used the term "preamplifier" referring to a component that would boost the rf signal before it reached the receiver . This was to make a distinction from "amplifiers" aka "amps" which were either high power RF (for transmitting) or the old stereo sound system . However I notice on the DSE website they are in fact called "amplifiers", as you say . Example from this page ( . geocities . com/toddemslie/UHF-TV-DX . html" target="_blank">www . geocities . com) : "Tropospheric scatter reception over distances up to around 300 miles, averages 10 - 20 microvolts, with the use of a high gain 16dB UHF deep fringe TV antenna and 2dB (170K°) noise figure masthead preamplifier . " I guess it depends what group of people are using the terminology . Although I have erected :D and fiddled with many HF, VHF and UHF antennas since I was a kid in school, I did not want to try and drill holes through 100 year rimu while crawling in the roof area (for TV points in various rooms) . So I splashed out and got a professional . Good thing too, because he had a $2k signal meter and used it to fine tune the system . Metla, try this from DSE ( . dse . co . nz/cgi-bin/dse . storefront/44a502e30a7e8b32273fc0a87f990716/Product/View/L4219" target="_blank">www . dse . co . nz) and see if it works . Return it for the great DSE refund if its a no go . But as I said, be sure you have quality coax and clean dry connectors . As Tweak says "the best are the ones that replace the balun and bolt directly to the aerial . " The DSE model referred to above sits next to the TV, not on the aerial mast, but its easier to use and keep dry! Tweak makes the point about the "snow", but if you don't mind going to DSE it is worth a try anyway . You could try to get a masthead preamp from a TV aerial shop but they may want to install it, or not give a refund if it does not do the trick . BTW, while I cannot recall the type of low-loss coax we have, it is different from what I used 20 - 40 years ago! :p |
Strommer (42) | ||
| 463338 | 2006-06-30 12:24:00 | have you got the aerial the right way up? (horizontal/vertical) i do take it that aerial is wired direct to tv and not joined to other aerials ?? otherwise not much else i can suggest without being there . edit: just to be clear, mast head amps and pre amps are two different things . you can have a preamp (built into the balun box on the aerial) which then connects to a mast head amp, which then can be amped further by a distribution amp (ie next to the tv) so signal can be sent around the house to muiltable tv's . i hope that dosn't confuse things ;) |
tweak'e (69) | ||
| 463339 | 2006-06-30 12:29:00 | Alrighty, What I may do is replace the lot, I would apreciate it if the required items could be pointed out on the DSE site. Antenna cables connections. booster. any idea if the L0040 is worthy of the job? |
Metla (12) | ||
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