WiFi Lab C

Test your knowledge of various Science Olympiad events.
Locked
User avatar
RasmitDevkota
Member
Member
Posts: 62
Joined: October 23rd, 2020, 6:27 pm
Division: C
State: GA
Pronouns: He/Him/His
Has thanked: 14 times
Been thanked: 41 times
Contact:
Contact RasmitDevkota

Re: WiFi Lab C

Post by RasmitDevkota »

ThomasL wrote: ↑December 18th, 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
Top
User avatar
ThomasL
Member
Member
Posts: 18
Joined: March 5th, 2019, 2:14 pm
Division: Grad
State: VA
Has thanked: 1 time
Been thanked: 1 time

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!
Top
User avatar
RasmitDevkota
Member
Member
Posts: 62
Joined: October 23rd, 2020, 6:27 pm
Division: C
State: GA
Pronouns: He/Him/His
Has thanked: 14 times
Been thanked: 41 times
Contact:
Contact RasmitDevkota

Re: WiFi Lab C

Post by RasmitDevkota »

ThomasL wrote: ↑December 22nd, 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)
Top
Locked

Return to “2022 Question Marathons”

Who is online

Users browsing this forum: No registered users and 0 guests