Kamstrup
READy
Collector
Kamstrup
A/S
∙
Manual
ID
(DocProperty
ManualID)_INITIALS
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11/12
6.
Maximum
ERP
Caution:
Before
starting
work
on
the
antennas,
turn
off
the
power
to
the
system.
Kamstrup
US
AMI
solution
use
Data
Collectors
to
collect
data
from
meters
and
end
‐
devices.
The
data
is
sent
on
an
uplink
frequency
and
received
by
the
collector.
Based
on
decisions
made
by
the
READy
head
end
system,
the
collector
acknowledge
the
reception
of
the
data
by
transmitting
back
to
the
meter
or
end
‐
device
using
the
downlink
frequency.
The
data
collector
is
capable
of
transmitting
up
to
5
Watt
output
power,
which
is
amplified
by
the
gain
in
the
antenna
used
on
the
data
collector
site
(if
antenna
gain
is
>0dBi).
Based
on
the
radio
propagation
study,
a
data
collector
site
is
tailored
to
fit
the
needs.
The
antenna
is
selected
(amplifies
the
signal)
and
the
antenna
cable
and
length
is
selected
(loss
–
attenuation
on
the
signal).
The
transmitter
must
at
no
time
transmit
higher
than
the
allowed
maximum
output
power
(meas
‐
ured
at
the
antenna
connector
of
the
data
collector
top
box)
and
it
must
at
no
time
radiate
more
power
(ERP)
than
the
granted
license
specify.
WARNING
The
maximum
output
power
in
W
dictates
the
maximum
output
power
a
data
collector
can
transmit
with
and
it
is
adjustable
in
READy
up
to
the
specified
maximum.
If
the
selected
antenna
have
a
gain
which
result
in
a
higher
radiated
power
(ERP)
than
allowed
by
the
license,
the
maximum
output
power
in
W
filled
in
the
Frequency
License
service
must
be
decreased
accordingly!
Max
ERP
–
antenna
gain
+
cable
loss
=
max
output
power
(if
lower
or
equal
to
FCC
license
max.)
The
calculation
must
be
made
by
Kamstrup
based
on
the
selected
antenna
and
cable
for
the
data
collector
site.