Mixing
RF vs Audio of Same Frequency
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From an article by an engineer at Cisco Systems - "An RF signal can have the same frequency as a sound wave, and most people can hear a 5 kHz audio tone. No one can hear a 5 kHz RF signal." Why not?
Thanks in advance for helping me understand RF Technology
rf
asked 1 hour ago
Ben S
363
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up vote
3
down vote
favorite
From an article by an engineer at Cisco Systems - "An RF signal can have the same frequency as a sound wave, and most people can hear a 5 kHz audio tone. No one can hear a 5 kHz RF signal." Why not?
Thanks in advance for helping me understand RF Technology
rf
asked 1 hour ago
Ben S
363
add a comment |Â
up vote
3
down vote
favorite
up vote
3
down vote
favorite
From an article by an engineer at Cisco Systems - "An RF signal can have the same frequency as a sound wave, and most people can hear a 5 kHz audio tone. No one can hear a 5 kHz RF signal." Why not?
Thanks in advance for helping me understand RF Technology
rf
asked 1 hour ago
Ben S
363
From an article by an engineer at Cisco Systems - "An RF signal can have the same frequency as a sound wave, and most people can hear a 5 kHz audio tone. No one can hear a 5 kHz RF signal." Why not?
Thanks in advance for helping me understand RF Technology
rf
rf
asked 1 hour ago
Ben S
363
asked 1 hour ago
Ben S
363
asked 1 hour ago
Ben S
363
asked 1 hour ago
Ben S
363
asked 1 hour ago
Ben S
363
363
add a comment |Â
add a comment |Â
3 Answers
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The audio tone is compression waves traveling through air that your ears can pick up. The RF signal is waves in the electromagnetic field that you ears have no way of picking up.
answered 1 hour ago
evildemonic
835415
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up vote
1
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This is an interesting question because I used to wonder the same thing (no, I'm saying it's an interesting question because of my former curiosity).
You're confusing electromagnetic radiation (something radio produces) with pressure waves (something sound produces). Our ears cannot adjust to electromagnetic waves and they are certain not sensitive to changes in electromagnetic waves.
Another way to look at it is that electromagnetic waves don't have nearly enough force to cause the ear drum to vibrate... whereas sound waves do.
If you want to get on a very quantum level about this, think about how strong gluons are.
answered 1 hour ago
KingDuken
1,0602517
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0
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RF signals are Electro-Magnetic (EM) waves.
We do not have any sensors for 5 kHz EM waves.
We do have EM sensors though, our eyes. They can sense EM waves in from $4×10^14$ Hz (red light) to $8×10^14$ Hz (violet light).
If strong enough we can also feel Infrared radiation as heat.
We can also feel (as heat) powerful EM radiation at lower frequencies but if you feel that then the field is dangerously strong and you should step out of that (radar) beam.
answered 23 mins ago
Bimpelrekkie
42.1k23790
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
The audio tone is compression waves traveling through air that your ears can pick up. The RF signal is waves in the electromagnetic field that you ears have no way of picking up.
answered 1 hour ago
evildemonic
835415
add a comment |Â
up vote
4
down vote
The audio tone is compression waves traveling through air that your ears can pick up. The RF signal is waves in the electromagnetic field that you ears have no way of picking up.
answered 1 hour ago
evildemonic
835415
add a comment |Â
up vote
4
down vote
up vote
4
down vote
The audio tone is compression waves traveling through air that your ears can pick up. The RF signal is waves in the electromagnetic field that you ears have no way of picking up.
answered 1 hour ago
evildemonic
835415
The audio tone is compression waves traveling through air that your ears can pick up. The RF signal is waves in the electromagnetic field that you ears have no way of picking up.
answered 1 hour ago
evildemonic
835415
answered 1 hour ago
evildemonic
835415
answered 1 hour ago
evildemonic
835415
answered 1 hour ago
evildemonic
835415
835415
add a comment |Â
add a comment |Â
up vote
1
down vote
This is an interesting question because I used to wonder the same thing (no, I'm saying it's an interesting question because of my former curiosity).
You're confusing electromagnetic radiation (something radio produces) with pressure waves (something sound produces). Our ears cannot adjust to electromagnetic waves and they are certain not sensitive to changes in electromagnetic waves.
Another way to look at it is that electromagnetic waves don't have nearly enough force to cause the ear drum to vibrate... whereas sound waves do.
If you want to get on a very quantum level about this, think about how strong gluons are.
answered 1 hour ago
KingDuken
1,0602517
add a comment |Â
up vote
1
down vote
This is an interesting question because I used to wonder the same thing (no, I'm saying it's an interesting question because of my former curiosity).
You're confusing electromagnetic radiation (something radio produces) with pressure waves (something sound produces). Our ears cannot adjust to electromagnetic waves and they are certain not sensitive to changes in electromagnetic waves.
Another way to look at it is that electromagnetic waves don't have nearly enough force to cause the ear drum to vibrate... whereas sound waves do.
If you want to get on a very quantum level about this, think about how strong gluons are.
answered 1 hour ago
KingDuken
1,0602517
add a comment |Â
up vote
1
down vote
up vote
1
down vote
This is an interesting question because I used to wonder the same thing (no, I'm saying it's an interesting question because of my former curiosity).
You're confusing electromagnetic radiation (something radio produces) with pressure waves (something sound produces). Our ears cannot adjust to electromagnetic waves and they are certain not sensitive to changes in electromagnetic waves.
Another way to look at it is that electromagnetic waves don't have nearly enough force to cause the ear drum to vibrate... whereas sound waves do.
If you want to get on a very quantum level about this, think about how strong gluons are.
answered 1 hour ago
KingDuken
1,0602517
This is an interesting question because I used to wonder the same thing (no, I'm saying it's an interesting question because of my former curiosity).
You're confusing electromagnetic radiation (something radio produces) with pressure waves (something sound produces). Our ears cannot adjust to electromagnetic waves and they are certain not sensitive to changes in electromagnetic waves.
Another way to look at it is that electromagnetic waves don't have nearly enough force to cause the ear drum to vibrate... whereas sound waves do.
If you want to get on a very quantum level about this, think about how strong gluons are.
answered 1 hour ago
KingDuken
1,0602517
edited 1 hour ago
answered 1 hour ago
KingDuken
1,0602517
answered 1 hour ago
KingDuken
1,0602517
answered 1 hour ago
KingDuken
1,0602517
1,0602517
add a comment |Â
add a comment |Â
up vote
0
down vote
RF signals are Electro-Magnetic (EM) waves.
We do not have any sensors for 5 kHz EM waves.
We do have EM sensors though, our eyes. They can sense EM waves in from $4×10^14$ Hz (red light) to $8×10^14$ Hz (violet light).
If strong enough we can also feel Infrared radiation as heat.
We can also feel (as heat) powerful EM radiation at lower frequencies but if you feel that then the field is dangerously strong and you should step out of that (radar) beam.
answered 23 mins ago
Bimpelrekkie
42.1k23790
add a comment |Â
up vote
0
down vote
RF signals are Electro-Magnetic (EM) waves.
We do not have any sensors for 5 kHz EM waves.
We do have EM sensors though, our eyes. They can sense EM waves in from $4×10^14$ Hz (red light) to $8×10^14$ Hz (violet light).
If strong enough we can also feel Infrared radiation as heat.
We can also feel (as heat) powerful EM radiation at lower frequencies but if you feel that then the field is dangerously strong and you should step out of that (radar) beam.
answered 23 mins ago
Bimpelrekkie
42.1k23790
add a comment |Â
up vote
0
down vote
up vote
0
down vote
RF signals are Electro-Magnetic (EM) waves.
We do not have any sensors for 5 kHz EM waves.
We do have EM sensors though, our eyes. They can sense EM waves in from $4×10^14$ Hz (red light) to $8×10^14$ Hz (violet light).
If strong enough we can also feel Infrared radiation as heat.
We can also feel (as heat) powerful EM radiation at lower frequencies but if you feel that then the field is dangerously strong and you should step out of that (radar) beam.
answered 23 mins ago
Bimpelrekkie
42.1k23790
RF signals are Electro-Magnetic (EM) waves.
We do not have any sensors for 5 kHz EM waves.
We do have EM sensors though, our eyes. They can sense EM waves in from $4×10^14$ Hz (red light) to $8×10^14$ Hz (violet light).
If strong enough we can also feel Infrared radiation as heat.
We can also feel (as heat) powerful EM radiation at lower frequencies but if you feel that then the field is dangerously strong and you should step out of that (radar) beam.
answered 23 mins ago
Bimpelrekkie
42.1k23790
answered 23 mins ago
Bimpelrekkie
42.1k23790
answered 23 mins ago
Bimpelrekkie
42.1k23790
answered 23 mins ago
Bimpelrekkie
42.1k23790
42.1k23790
add a comment |Â
add a comment |Â
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