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Results tagged with wireless
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user 29932
Using other than a wired connection to transfer signals or power. Includes optical and (ultra)sound, but most often refers to RF (Radio Frequency). Distances can be as low as centimeters (e.g. RFID); there's no upper limit.
1
vote
2
answers
164
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Why does signal quality change in different indoor environments?
I noticed (I have some radios I was testing stuff with) that signal quality (not necessarily strength) seems to change from room to room.
The frequency of my radio is 2.4GHz, bit rate is 100kHz.
It …
- 285
7
votes
3
answers
786
views
How to represent a human body with other materials?
I am doing some measurements on wireless body area networks, which involves putting sensors on human bodies and transmitting. …
- 285
0
votes
1
answer
349
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Positive reflection coefficient
In an article on Wiki, there is a plot that shows a positive reflection coefficient. How is this possible? I can't seem to see how you can get a positive one from this equation alone:
$$
\Gamma_= \fr …
- 285