WiFi Lab C

Test your knowledge of various Science Olympiad events.
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RasmitDevkota
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Re: WiFi Lab C

Post by RasmitDevkota »

ThomasL wrote: ↑Sat Dec 18, 2021 11:20 am 
(a) 48 MHz (half-wave dipole antenna has length 1/2 the wavelength, and frequency is speed of light divided by wavelength)
(b) VHF (which is 30 MHz - 300 MHz)
Correct! Your turn :D
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ThomasL
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Re: WiFi Lab C

Post by ThomasL »

Yay! Here goes... Some definition questions:
1. Define an isotropic antenna.
2. Explain the measures of dBi and dBd.
3. Define impedance.
TJHSST '21, Virginia Tech '25

You're pretty cool:) Have a nice day!
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RasmitDevkota
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Re: WiFi Lab C

Post by RasmitDevkota »

ThomasL wrote: ↑Wed Dec 22, 2021 3:21 pm Yay! Here goes... Some definition questions:
1. Define an isotropic antenna.
2. Explain the measures of dBi and dBd.
3. Define impedance. 
1. An isotropic antenna is one that radiates equally in all 3D directions
2. dBi is a measure of power output relative to an ideal isotropic radiator which radiates equally in all directions; dBd is a measure of power output relative to an ideal dipole antenna which has a gain of 2.15 dBi
3. Impedance is a mathematical combination of resistance (opposition to the flow of current) and reactance (opposition to the change in direction of the flow of current)
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