ADTRAN TRACER User Manual page 33

61280.003L1-1B
P A
ATH VAILABILITY
The availability of a path can be expressed by:
availability = (1 - C x T x 2.5 x 10
where
C is the climate factor
T is the terrain factor
f is the frequency in GHz
D is the path length in miles
F is the fade margin in dB
Climate factors are given below.
Terrain factors are listed below
The nominal received signal level is -60 dBm. For help in link
planning, use the path loss calculation worksheet below.
4/12/99
Climate
Very Dry ..............
Temperate ............
Humid .................
Terrain
Smooth .................... 4
Average .................... 1
Mountainous ...........
- 91 dBm Minimum Signal Power
+ _______ Transmitter Feedline Loss
- _______ Transmitter Antenna Gain
+ _______ Path Loss
- _______ Receiver Antenna Gain
+ _______ Receiver Feedline Loss
+ _______ Required Fade Margin
= _______ (dBm) Transmitter Power Setting
-6 3
x f x D x 10-F
Climate
Factor
1
/
8
1
/
4
1 /
2
Terrain
Factor
1 /
4
P 23
AGE
I
NSTALLATION
/10
) x 100%