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| Thread ID: 98784 | 2009-04-07 04:01:00 | Wireless interfering with tv. | Blackandblue (14231) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 762868 | 2009-04-09 04:32:00 | Channel one is susceptible to interference and weak signal, it is an archaic obsolete VHF 45Mhz frequency that I doubt any other developed country now uses. (I may be wrong :) ). It should have been phased out years ago. ok firstly channel one (RF channel 3) runs at 62.25-67.25Mhz and secondly if you have ever heard of shortwave those signals can travel halfway round the world with reasonable clarity and just so you know i could receive channel one with watchable clarity in hamner springs using rabbit ears along with two and three these new fangled high frequency channels on freeveiw terrestrial wouldnt even touch the ionosphere let alone reflect off it digital is just an inferior excuse to use poor aerials, a correctly set up analogue aerial can give comparable image quality to this digital BS. |
williamF (115) | ||
| 762869 | 2009-04-09 08:14:00 | ok firstly channel one (RF channel 3) runs at 62.25-67.25Mhz and secondly if you have ever heard of shortwave those signals can travel halfway round the world with reasonable clarity and just so you know i could receive channel one with watchable clarity in hamner springs using rabbit ears along with two and three these new fangled high frequency channels on freeveiw terrestrial wouldnt even touch the ionosphere let alone reflect off it digital is just an inferior excuse to use poor aerials, a correctly set up analogue aerial can give comparable image quality to this digital BS. You're trying to pull the bullshit wool over our eyes there Willi. :) First of all channel one is channel one is channel one.... and has vision/sound frequencies of 45.25/50.75MHz Channel one is nothing to do with TV1 which I think possibly you may be talking about. TV1 is transmitted on various channels, in Wellington it is channel 1, at Waiatarua, Auckland it is on channel 2, 55.25/60.75Mhz. You can check out the frequencies around the country here: www.lincrad.co.nz TV1 when transmitted at these low frequencies notoriously gives poor signal unless you are a very favourable position. When re-transmitted through a translator at the high end of the VHF band ~ 190 Mhz, then the signal and picture is much better. Shortwave is generally taken to be up to around 30MHz, but trying to compare shortwave sound broadcasting around the world with television video at VHF upwards of 45 MHz doesn't hold water. |
Terry Porritt (14) | ||
| 762870 | 2009-04-09 08:42:00 | You're trying to pull the bullshit wool over our eyes there Willi. :) First of all channel one is channel one is channel one.... and has vision/sound frequencies of 45.25/50.75MHz Channel one is nothing to do with TV1 which I think possibly you may be talking about. TV1 is transmitted on various channels, in Wellington it is channel 1, at Waiatarua, Auckland it is on channel 2, 55.25/60.75Mhz. You can check out the frequencies around the country here: www.lincrad.co.nz TV1 when transmitted at these low frequencies notoriously gives poor signal unless you are a very favourable position. When re-transmitted through a translator at the high end of the VHF band ~ 190 Mhz, then the signal and picture is much better. Shortwave is generally taken to be up to around 30MHz, but trying to compare shortwave sound broadcasting around the world with television video at VHF upwards of 45 MHz doesn't hold water. by channel one i refer to TVNZ ONE, the RF channel i would refer to as channel 1 well here in christchurch its RF channel 3 and i wasnt aware of that so i stand corrected. however my veiws on televisual technology are my own and i prefer TV of the analogue variety with the exception of prime which in a few select locations is utter crap as for a more constructive reply i am guessing you have bought a below standard supply which doesnt and wouldnt meet FCC compliance and perhaps moving the computer or tele to a seperate circuit to the computer and or tele. or use a legitimate power supply for the laptop and get your computer's switchmode power supply checked and or replaced |
williamF (115) | ||
| 762871 | 2009-04-09 09:06:00 | I imagine the reason for TV1 generally transmitting on the low end of VHF is purely historical, in the same way as the first TV in UK using 405 lines was from Alexandra Palace on 45 MHz, before the war and after. In those days 45MHz was high frequency, and I expect TV in NZ basically copied over from UK. Though by 1960 when TV started here, the BBC were just starting to trial UHF and 625 lines, a service starting some 4 or 5 years later (still in black and white) | Terry Porritt (14) | ||
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