aarthrj3811 said:
Please, if you are suggesting using actual electronic devices to demonstrate anything, you really should have a good working knowledge of how they work. Saying "I don't know but it works" doesn't cut it -- that amounts to the extreme version of "a little knowledge is a dangerous thing." NO knowledge is even more dangerous!
Instead of telling me how dumb I am you should be telling me the experiment works. No excuses...I don't care what physic threoy tells you will happen. I know that the signal can be picked up. It seems that a having a working knowledge of electronics is no advantage to you guys....Art
No, now you are talking in an area which I know. I will not be able to tell you your experiment works, because I know it won't. I have grown up in an electronics environment. So you are trying to now tell me something about a field that I know -- radio electronics. You are postulating an experiment using equipment that I am very familiar with -- and I don't need to perform any experiments to know that it won't work the way you think it would.
Let's see if I have it right: You are suggesting using a cd player which also has an FM radio, and say to play a cd with a signal of a certain audio frequency. (You neglect to specify waveform, though, so I will have to assume a standard sine-wave.) You are saying then to ground the antenna from this unit, place some gold some feet away from the antenna, and hook up an oscilloscope to the antenna to detect any changes when someone with a divining rod goes between the antenna and the gold. (If you are instead saying that the effect can be picked up by dowing, well, your logic would have completely failed -- you would be using circular logic.)
Here's why your proposed experiment won't work. (You force me to go into radio theory here.) (Yes, I used the word "theory." It is indeed a theory, in the same manner of a theory that I described in another post. And it has been proven many times, in many ways, to work this way -- so this "theory" is a factual one.)
1) (As was said elsewhere) when the CD is playing, the radio circuit is actually off -- no power to the RF or IF sections of the circuitry. So the antenna is completely out of the picture when playing a CD.
2) Said device can not possibly have any connection between the audio output and the receiving circuitry when in CD mode, and when in radio mode the IF and RF circuitry would effectively isolate the output circuit from the input circuit.
3) There is absolutely no way a receiver can be made to transmit a signal, although "every receiver is a transmitter." Yes, all receivers are transmitters -- but only of a 455 KHz sine wave in AM mode, and a 9 MHz sine wave in FM mode -- no signal modulation. That is, the only RF generated is the IF, and it is a pure, set (and controlled) sine wave. And these are constructed in such a way as to be completely isolated from external interference, so your gold test object could not affect it even if gold did have any "signal emission" properties.
4) A grounded antenna will show no signal of any sort, even if the device is in radio mode, because, well, you are grounding out the signal. (An antenna generates a voltage via electric induction, but said voltage is only in reference to ground. Shorting this out with ground will result in a net and real VRMS of zero volts!) This applies to both received and (any) transmitted RF.
5) If there were the slightest possibility of an oscilloscope actually showing anything in such a grounded state, placing gold, silver, tin, lead, or anything you might dowse for withing several feet would in no way affect said signal.
There are many more reasons why your experiment could have no reasonable results, but I won't go into the actual mathematics here.
I do not need to perform your experiment in order to know it will produce no results of the nature you claim. I know enough about the components involved to know that it will not work. (It's like knowing that, no matter how much you turn on your kitchen sink spigot, no water will come out if there is no water flowing into the house in the first place. You can keep trying to turn on the water at the sink, but it just ain't gonna work!)
