Radwin 2000+ SERIES User Manual - 19.2.2
RADWIN
2000+
Series
User
Manual
Release
4.2.40
19
‐
2
Link
Budget
Calculator
Internal
Data
19.2.2
Link
Budget
Calculator
Internal
Data
For
each
product
(or
Regulation
and
Band)
the
calculator
stores
the
following
data
required
for
link
budget
calculations:
•
Maximum
Transmit
power
(per
modulation)
•
Receiver
Sensitivity
(per
modulation)
for
Ethernet
service
•
Maximum
linear
input
power
(used
to
calculate
minimum
distance)
•
Antenna
gain
and
cable
loss
for
radio
unit
with
integrated
antenna
•
Available
Channel
Bandwidths
19.3
Calculations
19.3.1
EIRP
(
E
quivalent
I
sotropically
R
adiated
P
ower)
19.3.2
Expected
RSS
and
Fade
Margin
where:
Site
A
is
the
transmitting
site
Site
B
is
the
receiving
site
PathLoss
is
calculated
according
to
the
free
space
model,
where
Sensitivity
is
dependent
on
air
‐
rate.
19.3.3
Min
and
Max
Range
MinRange
is
the
shortest
range
for
which
per
air
‐
rate.
MaxRange
(with
Adaptive
checked)
is
the
largest
range
for
which
,
at
the
highest
air
‐
rate
for
which
this
relationship
is
true.
In
a
link
with
adaptive
rate
this
will
be
the
actual
behavior.
MaxRange
(for
a
given
air
‐
rate)
is
the
largest
range
for
which
.
EIRP
TxPower
AntennaGain
SiteA
CableLoss
SiteA
–
+
=
ExpectedRSS
EIRP PathLoss
AntennaGain
SiteB
CableLoss
SiteB
–
+
–
=
PathLoss
32.45
20
frequency
MHz
20
RequiredRange
Km
10
log
+
10
log
+
=
ExpectedFadeM
in
arg
ExpectedRSS Sensitivity
–
=
ExpectedRSS
MaxInputPower
ExpectedRSS
Sensitivity
ExpectedRSS
Sensitivity
RequiredFadeM
in
arg
+