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I read an article that had the sentence

> 1.9GHz帯を使うため、ZigBeeやWi-Fiで使われている2.4GHz帯の機器と干渉しないことが特徴。

I previously learned that 混信 means "interference" or "jamming". I saw this
word used often. I'm wondering if 干渉 and 混信 are interchangeable and whether or
not the sentence above would still be correct.

I think 混信 holds some property of something (a signal) being "mixed". However,
I'm not able to derive the meaning of 干渉.
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2012-05-14T17:59:16.860
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2012-05-14T23:32:39.913
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question
definitions word-choice
混信 and 干渉 difference in terms of communications and computing?
混信 as you mentioned literally means 異なる信号が混じること, or when two signals emitted
from two different locations "mix". This happens when the signals are at the
same or very similar frequencies. 混信 generally refers to 電波, or wavelengths
longer than infrared light. So, you will see its use when talking about
wireless communications, radio and television broadcasting, etc.

干渉 has a much broader meaning. In physics, it is the when two waves
superimpose to form a resultant wave of greater or lower amplitude
([reference](http://en.wikipedia.org/wiki/Interference_%28wave_propagation%29)).
Note that this is not restricted to radio waves as 混信 is. Also, 干渉 can refer
to [noise(electronics)](http://en.wikipedia.org/wiki/Noise_%28electronics%29)
but 混信 cannot. So, 干渉 can refer to any type of interference (in other words it
is not restricted to signals).

So, in your example sentence, I think that both 干渉 and 混信 can be used, but
depending on the context they are not necessarily interchangeable. Also, I
believe 干渉 is much more common because it has a more general meaning than 混信.
CC BY-SA 3.0
2012-05-14T23:25:05.400
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2012-05-14T23:32:39.913
2012-05-14T23:32:39.913
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answer