Home |
Search |
Today's Posts |
#101
|
|||
|
|||
Hopefully not off topic
On 6/2/2012 1:04 PM, Szczepan Bialek wrote:
Użytkownik napisał w wiadomości ... "Szczepan wrote in message ... Ptolemy chose the earth centric model. Today astronomers do the same. The Sun is too hot to make the measurements from it. Oh dear - no. Astronomers to-day know that the earth orbits around the sun. It is incorrect to say that "the sun is too hot to make the measurements". Scientists make plenty of observations of the sun (sunspots, CME and so on). All measurements were, are, and will be done from the Earth. "Ptolemy chose the earth centric model" means that all measurements must be done from the Earth. All astronomers before Ptolemy (and he) known that the planets orbit the Sun. S* I love how your replies often have nothing to do with the subject, like now. You really are a moron. tom K0TAR |
#102
|
|||
|
|||
Hopefully not off topic
Trying to straighten this guy out is about as productive
as teaching chickens to appreciate Mozart! Irv VE6BP "tom" wrote in message . net... On 6/2/2012 12:58 PM, Szczepan Bialek wrote: napisal w wiadomosci ... But is the another phenomenon. The Luxembourg effect. The dipole radiate the doubled frequency. S* That is NOT the Luxembourg Effect. The Luxembourg effect is/was cross modulation of 2 stations due to non-linearities in the atmosphere. It is an explanation. The Luxembourg effect WAS the receiving of LW from Luxembourg mast on the MW receivers tuned to the doubled frequency.. S* What a maroon. tom K0TAR |
#103
|
|||
|
|||
Hopefully not off topic
"Irv Finkleman" wrote in message ... Trying to straighten this guy out is about as productive as teaching chickens to appreciate Mozart! Irv VE6BP .... and a cluck is involved either way. "Sal" |
#104
|
|||
|
|||
Hopefully not off topic
On 6/2/2012 10:02 PM, Irv Finkleman wrote:
Trying to straighten this guy out is about as productive as teaching chickens to appreciate Mozart! Irv VE6BP Dunno.. You are being pretty hard on the chickens.. :/ Heck, I saw chickens and ducks playing the piano at the I.Q. Zoo in Hot Springs AR several years ago. :| |
#105
|
|||
|
|||
Hopefully not off topic
"Jeff" napisal w wiadomosci ... On 02/06/2012 18:58, Szczepan Bialek wrote: napisal w wiadomosci ... But is the another phenomenon. The Luxembourg effect. The dipole radiate the doubled frequency. S* That is NOT the Luxembourg Effect. The Luxembourg effect is/was cross modulation of 2 stations due to non-linearities in the atmosphere. It is an explanation. The Luxembourg effect WAS the receiving of LW from Luxembourg mast on the MW receivers tuned to the doubled frequency.. S* No it wasn't, it was receiving the audio from Radio Luxembourg, whilst tuned to and receiving another MW station (not at twice the frequency). In 1933 newspaper was wrote that exactly twice. That is you heard both stations simultaneously. This is nothing to do with harmonics at twice the frequency, it is a phenomenon known as cross modulation. Is the cross modulation if the LW are from the monopole antenna? S* |
#106
|
|||
|
|||
Hopefully not off topic
"Jeff Liebermann" napisal w wiadomosci news On Sat, 2 Jun 2012 19:51:48 +0200, "Szczepan Bialek" wrote: The principle of nantenas is the same as the crystal radio. The size of the antenna must be below 1/2 WL. Please read the PDF I included. The length of the dipole can be any multiple of 1/2 wavelength. It can also be a loop antenna. What's critical is the spacing between the antenna and the underlying ground plane, which form a resonant cavity at optical frequencies. For RF each diode is O.K. Please read the Wikipedia article: The large loss in power is a result of the junction capacitance (also known as parasitic capacitance) found in p-n junction diodes and Schottky diodes, which can only operate effectively at frequencies less than 5 THz.[3] The ideal wavelengths of 0.4-1.6 um correspond to frequencies of approximately 190-750 THz, which is much larger than the capabilities of typical diodes. etc... This isn't going to work with ordinary diodes. RF = radio frequency. The question is if the electrons flow into the ground. Nope. The question is whether there are any electrons involved. There are none. "The simplest crystal radio receiver, employing an antenna and a demodulating diode (rectifier), is actually a rectenna - although it discards the DC component before sending the signal to the earphones. People living near strong radio transmitters would occasionally discover that with a long receiving antenna, they could get enough electric power to light a light bulb" Where the DC component is discard? What is the DC component made of? Do you know the answer? Yes... I know everything. If you unable to form a suitable opinion, I would be happy to supply one for you. Everyone constantly repeating that there are no electrons falling to the ground or spewn into the air doesn't seem to have much of an effect on you. You are also apparently incapable of answering my question (multiple times). I see no indication that you have read, much less understand, any of the references and explanations supplied for your benefit. You are therefore hopeless and a waste of time. "The electrical grid, which is normally three-phase AC, can be severely disrupted by the presence of a large DC bias. This is caused by strong solar flares hitting the Earth's atmosphere,(Even pipelines, such as the mostly above-groundAlaska Pipeline, are prone to this, and must be tied to electrical ground". Now you are only one. Two days ago Jimp wrote: "It has been explained to you several times that any electron emmission from the ends of an antenna is an abnormal situation, is NOT required for antenna operation, and is an independant phenomena of normal antenna operation." So we have done the first step: "electrons falling to the ground or spewn into the air" are the abnormal situations". The next step will be "L. Lorenz is right". S* |
#107
|
|||
|
|||
Hopefully not off topic
Szczepan Bialek wrote:
"The electrical grid, which is normally three-phase AC, can be severely disrupted by the presence of a large DC bias. This is caused by strong solar flares hitting the Earth's atmosphere,(Even pipelines, such as the mostly above-groundAlaska Pipeline, are prone to this, and must be tied to electrical ground". The electrical grid has nothing to do with antennas and the structures being discussed are usually miles long in size. There are no antennas miles long in size. Now you are only one. Two days ago Jimp wrote: "It has been explained to you several times that any electron emmission from the ends of an antenna is an abnormal situation, is NOT required for antenna operation, and is an independant phenomena of normal antenna operation." So we have done the first step: "electrons falling to the ground or spewn into the air" are the abnormal situations". No, we do not. Even in a solar flare there are no "electrons falling to the ground or spewn into the air". Solar flare effects at ground level are magnetic effects. The next step will be "L. Lorenz is right". S* The next step should be to get you into a mental hospital. |
#108
|
|||
|
|||
Hopefully not off topic
Szczepan Bialek wrote:
"Jeff" napisal w wiadomosci ... On 02/06/2012 18:58, Szczepan Bialek wrote: napisal w wiadomosci ... But is the another phenomenon. The Luxembourg effect. The dipole radiate the doubled frequency. S* That is NOT the Luxembourg Effect. The Luxembourg effect is/was cross modulation of 2 stations due to non-linearities in the atmosphere. It is an explanation. The Luxembourg effect WAS the receiving of LW from Luxembourg mast on the MW receivers tuned to the doubled frequency.. S* No it wasn't, it was receiving the audio from Radio Luxembourg, whilst tuned to and receiving another MW station (not at twice the frequency). In 1933 newspaper was wrote that exactly twice. And like many of your other ancient references, it was wrong. There is no relationship to the frequencies. That is you heard both stations simultaneously. This is nothing to do with harmonics at twice the frequency, it is a phenomenon known as cross modulation. Is the cross modulation if the LW are from the monopole antenna? Cross modulation has absolutely nothing to do with antennas. It is an effect caused by a perturbed region of the ionosphere far from the antennas. You are a babbling idiot. |
#109
|
|||
|
|||
Hopefully not off topic
"Jeff" napisal w wiadomosci ... No it wasn't, it was receiving the audio from Radio Luxembourg, whilst tuned to and receiving another MW station (not at twice the frequency). In 1933 newspaper was wrote that exactly twice. That is you heard both stations simultaneously. This is nothing to do with harmonics at twice the frequency, it is a phenomenon known as cross modulation. Is the cross modulation if the LW are from the monopole antenna? S* I don not understand what you are trying to ask, The Luxembourg effect wa son MW not LW, and it has nothing to do with antennas, it is mixing in the ionosphere of 2 signals. "In 1933, Radio Luxembourg opened a 200 kW long wave transmitter, broadcasting in English from the Grand Duchy in the afternoons and evenings." From: http://frequencyfinder.org.uk/trans_hist1.html It was a dipole mast. The same was in Warsaw . The same effect was observed (the LW were received on radio set as MW). Now is a 1/4 WL mast and no the effect. S* |
#110
|
|||
|
|||
Hopefully not off topic
Szczepan Bialek wrote:
"Jeff" napisal w wiadomosci ... No it wasn't, it was receiving the audio from Radio Luxembourg, whilst tuned to and receiving another MW station (not at twice the frequency). In 1933 newspaper was wrote that exactly twice. That is you heard both stations simultaneously. This is nothing to do with harmonics at twice the frequency, it is a phenomenon known as cross modulation. Is the cross modulation if the LW are from the monopole antenna? S* I don not understand what you are trying to ask, The Luxembourg effect wa son MW not LW, and it has nothing to do with antennas, it is mixing in the ionosphere of 2 signals. "In 1933, Radio Luxembourg opened a 200 kW long wave transmitter, broadcasting in English from the Grand Duchy in the afternoons and evenings." From: http://frequencyfinder.org.uk/trans_hist1.html And the LW station caused cross modulation of a MW station, resulting in the LW station being heard at the same time as the MW station on the MW station frequency. It was a dipole mast. The same was in Warsaw . The same effect was observed (the LW were received on radio set as MW). Now is a 1/4 WL mast and no the effect. Incoherent, meaningles babble. The Luxembourg effect has nothing to do with antennas and happens in the ionosphere. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|