G
Giorgis
- Jan 1, 1970
- 0
Is it possible to generate a beating electromagnetic wave ?
Were can I find some info on the topic ?
Thanks
Giorgis
Were can I find some info on the topic ?
Thanks
Giorgis
Giorgis said:Is it possible to generate a beating electromagnetic wave ?
Were can I find some info on the topic ?
Leon said:Not directly, AFAIK. You could receive it with an antenna, beat it with
another signal using a mixer and retransmit it.
Leon
Giorgis said:Is it possible to generate a beating electromagnetic wave ?
Were can I find some info on the topic ?
Giorgis said:I'd like to do it in a free spectrum. do they have to come from the
same antena source ?
Are there any similar applications ?
Giorgis
2 waves of slightly different frequency will beat together if thats what you
mean ?
therefore you just need to generate and transmit 2 such frequencies.
Colin
colin said:2 waves of slightly different frequency will beat together if thats what you
mean ?
therefore you just need to generate and transmit 2 such frequencies.
Colin
Ed said:Of course it's possible - 2 transmitters on the same frequency will
produce a beating wave. This technique is used in quasi-sync mobile
radio networks to produce wide area coverage where the beat frequency is
normally arranged to be a few kHz so that it is above the audio range
but still within the receiver capture range.
Giorgis said:<<SNIPP>>
Maybe my knowledge is a bit hobbyish in the field. What I would like
to do is create an elctromagnetic wave that has a carier wave on it
that appears to travel along it at a speed of my choosing.
I suspected that if add two waves to each other that have a very close
freequency, I will get the wave of my choice
YES ... NO ?
Giorgis
Leon said:I don't think that's what he meant. He is asking whether two waves can
beat without a receiver, I don't think that they can.
I'm sure I read somewhere about Sodium vapour street lights (UK), having acolin said:I think one assumed that he would be sensing them with some sort of
detector,
but its such a vague question,
if you look at 2 such waves on an oscilloscope you can see them beating as
such,
although to extract the beat frequency itself you do need a non linear
detector.
Colin =^.^=
If you linearly add the two waves, nothing will happen.Giorgis said:<<SNIPP>>
Maybe my knowledge is a bit hobbyish in the field. What I would like
to do is create an elctromagnetic wave that has a carier wave on it
that appears to travel along it at a speed of my choosing.
I suspected that if add two waves to each other that have a very close
freequency, I will get the wave of my choice
YES ... NO ?
Giorgis
Is it possible to generate a beating electromagnetic wave ?
Were can I find some info on the topic ?
If you linearly add the two waves, nothing will happen.
If you multiply the two waves, or add then in a nonlinear media, sum and
difference frequencies may results.
Unless your air is very strange, very little "mixing" takes place in thechristopher said:Google "heterodyne". I do something similar to what you mention in
generating a musical sound. My magnetic fields mix in the air with two
oscillator coils in proximity to one another. A diode RC combo detects
the amplitude modulation created. Here is a link to my homemade
circuit board webpage using the heterodyne principle.
http://www.oldtemecula.com/theremin/ultimate2b/index.htm
* * *
Christopher
Temecula CA.USA
http://www.oldtemecula.com
Giorgis said:Coudl you explain what you mean by linearly add two waves
or Multiply or add them in a nonlinear media ?
Regards
Giorgis
Coudl you explain what you mean by linearly add two waves
or Multiply or add them in a nonlinear media ?