Wi-Fi & Link Budget Flashcards
(5 cards)
1
Q
What does an omni antenna do?
A
Radiates power equally in all directions
2
Q
What’s the formula for path loss?
A
Lp = Pt + Gt + Gr - Pr
3
Q
What’s the formula for range (d)?
A
Lp = 20log(d) + 20log(f) + 92.45
4
Q
What is RSSI sensitivity?
A
The weakest signal a receiver can detect (e.g., -79 dBm)
5
Q
What’s 100 mW in dBm?
A
20 dBm
