Nonsense. RF (radio frequency) transmitters use what they call local oscillators to generate a carrier frequency which they multiply into the signal frequency from the tv cameras and microphones. They need to do this to give the signal the energy needed for transmission. The higher the frquency, the higher the energy. I'll spare you the mathematics. This multiplying of 2 signals is called modulation. It's effectively an electronic gearbox, the same way the cogs on a bicycle multiply up the rotation of the pedals giving you more speed.
When this signal reaches your tv reciever, that signal has to be divided down again which we call surprisingly enough 'demodulation.' But your tv set has to generate that signal first using it's own local oscillator. It is that local oscillator signal, which has a fixed value that the tv vans with the ariels (directional antennae) on top are able to detect. It just shows up as a spike on a very expensive piece of electronics called a Spectrum Analyser. And the spike is highest when pointed in the direction of the tv set.
And for those still awake....if we have a device which can both MODulate and DEModulate we call it a MODEM.
Next week..... why there is no such thing as digital radio transmission and how we use Gaussian Minimum Shift Keying instead.[/quotethats obvious,dont know why people make out they know all abot electronics,and give people the wrong info
i was born in uk, and i remeber the licences,but they had them here,i remeber in melbournein 65 my dad saying to me ,"better go and pay the tv licence"and people got caught, they would knock on doors at random and if the tv was on ....gotcha.i think they canned it later that year or just after from memeory
you reckon youve got roblems with your sattellite lol,ask anyone who talks to me on phone or email how i drop out every ten minutes haha damn annoying,optus even agreed to refund my laptopand wireless service in full because i complained so much lol,i now have a little aerial on my broof that relays a signal,friend installed it, but i still have minor problems
thats something,i remeber up here a group of hippies squatted in the bush in the 90s,theyre still there,in mud bick homes and cant be evicted thru some law ,but they do good dont use power water or anything they use all their own energy produced by them
its a bad habit to get out oflol,wheh youve been having one hand in your pocket all your life,it feels strange trying to stand and talk with both hands hanging down,been trying it lately,trying to get used to it
we saw one bloke shoving his fingers in his button holes while he stood up,we started really laughing after a while,suppose we were rude people watchinglol but i dont get to go to the city centre oftenand we couldnt go outside the cafe as it was pouring ,so we stayed in drinking coffee and eatin cakes till it stopped haha
bit more on the history thing,hey robbo remeber i found a lighter and i showed you th pic,well i polished ity up and found a couple of words on it,turns out that lighter that belonged to the farmers kids great grandfather,was actually a lighter from their grandfather not great grandfather,found out vthat the grandfather had a lighter from his dad,and lost it during ww1,and wanted a similar lighter so he got one from aformer german soldier as a present after the war in 1922,and it was an imco lighter,and imco first made buttons ,but after the war in1918,they started making lighters from spent ammunition from the frontlines,so every one you see has been fired in angeras a bullet ,but afetrwards it was a lighter.pretty interesting hey,the people showed me letters from their grandad and the story has been unfolding, and they gave me a old magnifying glass ,missing a leg,i,ll have to take a pic and show you, its weird but they gave me it for my collection, real nice people
there atre quite a few that will come to your house and give you the going price for gold,stay away from those shishenhousers that operrate those little gold shops in shopping centres,they take advantage of women who feel like spending some money on nice clothes so they see the moron in the gpld shop and go oooh, i can make some money here,and they get half of what its worth.anyone that gives you the gold price is alright because they buy it off you not to make money straight away, but to keep it till the price rises then sell it,so youre not losing.i sold mine to a guy called cash for old gold,and he weighe it,and gave me the 1200 dollares an ounce that was the price then ,so i didnt lose ,seeing it was a nine ounce nugget ,real big,had it for 22yrs ,decided now is time to sell.but make sure they weigh it in front of you ,with digital scales,and they will want to test it with nitric acid to prove its real
i always look where the water comes rushing to a stop,and i find lots of stuff that way,trouble is people in those days were so poor they really hung onto ntheir stuff like a vicegrip,i think you have to look where they are sure to have lost their belongings ,like under clothes lines and in tents where they slept,etc i,m only guessing,but i look for funny places like that,cant go up my spot on the river because its been flooded all winter,i,m hoping the wtare will have washed away a bit of dirt
i always look where the water comes rushing to a stop,and i find lots of stuff that way,trouble is people in those days were so poor they really hung onto ntheir stuff like a vicegrip,i think you have to look where they are sure to have lost their belongings ,like under clothes lines and in tents where they slept,etc i,m only guessing,but i look for funny places like that,cant go up my spot on the river because its been flooded all winter,i,m hoping the wtare will have washed away a bit of dirt
rippleinapond Forum Posts (378)
RE: Blokes 2
merri ?you do know that its a gold sluice dont you?and robbos having a joke