Ceragon FA4800 User Manual Page 25

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2.3.6
Antenna ODU Alignment
Two alignment stages (that is, course and fine al
on both local and remote
critical for achieving the strongest receive signal possible.
Verify the ODU is in
Alignment Mode
indicated
Alignment Mode
Note:
The
FibeAir 70
Mode
. In case RF LED is not orange, configure the ODU to
using the Web
Course Align
ment (Azimuth Only)
Loosen the Unit Mounting Bolts (
freedom of movement.
Perform a course ODU alignment using a line
FibeAir 70 ODU.
Ideally, this ODU alignment should be accu
final alignment position.
Lock the Unit Mounting Bolts (
Repeat Steps 0 to 0
above on the remote
Fine Alignment
Note:
Wh
en aligning one of
remain completely stationary. Fine alignment is performed first on the local
ODU node, and only afterwards on the remote node.
The optimum alignment may require several adjustment iteration
the ODU nodes.
Connect the DVM to the
their appropriate positions in the AUX port.
Throughout the alignment procedure, you will compare the actual
receive signal strength indication (RSS
was calculated during network link budget preparation (See
2.3.2).
Antenna ODU Alignment
Two alignment stages (that is, course and fine al
ignments) are required during installation
on both local and remote
FibeAir 70
Antenna ODUs. Accurate alignment of the ODU is
critical for achieving the strongest receive signal possible.
Alignment Mode
by checking the RF LED color
orange
Alignment Mode
.
FibeAir 70
ODU is shipped from the factory configured for
. In case RF LED is not orange, configure the ODU to
Alignment Mode
using the Web
-EMS or CLI (See Section 3.2 and 3.3).
ment (Azimuth Only)
Loosen the Unit Mounting Bolts (
) slightly in order to allow the ODU some
freedom of movement.
Perform a course ODU alignment using a line
-of-
sight visual check with the remote
Ideally, this ODU alignment should be accu
rate within 10°
final alignment position.
Lock the Unit Mounting Bolts (
).
above on the remote
FibeAir 70 ODU.
en aligning one of
FibeAir 70
ODU nodes, its remote node pair must
remain completely stationary. Fine alignment is performed first on the local
ODU node, and only afterwards on the remote node.
The optimum alignment may require several adjustment iteration
the ODU nodes.
Connect the DVM to the
FibeAir 70
ODU by inserting both red and black probes into
their appropriate positions in the AUX port.
Throughout the alignment procedure, you will compare the actual
receive signal strength indication (RSS
I) to the expected RSSI that
was calculated during network link budget preparation (See
Page 25
ignments) are required during installation
Antenna ODUs. Accurate alignment of the ODU is
orange
Alignment
Alignment Mode
) slightly in order to allow the ODU some
sight visual check with the remote
of the
ODU nodes, its remote node pair must
remain completely stationary. Fine alignment is performed first on the local
The optimum alignment may require several adjustment iteration
s between
ODU by inserting both red and black probes into
Throughout the alignment procedure, you will compare the actual
I) to the expected RSSI that
was calculated during network link budget preparation (See
Section
4Gon www.4Gon.co.uk [email protected] Tel: +44 (0)1245 808295 Fax: +44 (0)1245 808299
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