TP-Link Pharos CPE210, Installation Manual, Page: 21 / 32

17
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RIWKHGHYLFHV"
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which is caused by obstacles in the path between the transmitter
and the receiver. Fresnel Zone is a usual method to calculate this
SDWKDVVKRZQLQWKHIRUPXODDQGWKHƮJXUHEHORZ
h = the height of
obstacle at this point
H h+r*(1 40%)
(H is the height of the CPE)
d
2
r
d
1
ZKHUH
r = Fresnel zone radius in meters
F [ 8 PVVSHHGRIOLJKW
f = operating frequency of the devices in
Hz
d
1
& d = the distances between the
point and the devices in meters
)RUH[DPSOHDVVXPH d
1
LVNP d
2
LVNPDQG f LV*+]WKHQ
r ZRXOGEHP&RQVLGHULQJDWROHUDWLRQRIDOORZDEOH
UDGLXVZRXOGEHP$VVXPH h LVPWKHQWKHUHVXOWRIWKH
PLQLPXPPRXQWLQJKHLJKWEDVHGRQWKLVSRLQWZRXOGEHP
6LPLODUO\FDOFXODWHWKHUHVXOWVEDVHGRQDOOWKHSRLQWVZKHUHWKHUHDUH
REVWDFOHVDQGWKHPD[LPXPYDOXHZRXOGEHWKHƮQDOUHVXOW
)RUPRUHLQIRUPDWLRQSOHDVHUHIHUWR
https://en.wikipedia.org/wiki/Fresnel_zone