Справочник Пользователя для Sony Corporation RCS640IA
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RC-S640/IA Product Specifications
Appendix B About installation
B.1 Installation requirements for RC-S640/IAA
The following describes the points to remember when installing the antenna.
1. Do not use any metal or carbon compound as the material for the cabinet. The cabinet surface must be at
least 1.5 mm apart from the antenna
surface.
2. Stick the antenna to a plane (modification of the antenna is subject to penalties according to applicable
laws or regulations). Do not place any metal in the forbidden area (dot-meshed area in Figure B-1)
secured around the antenna. Particularly, communication performance undoubtedly deteriorates if a
plate-like metal is put near the antenna. And to avoid damage to an antenna, do not place projections or
movable parts. Moreover, fix the positional relationship between a module
secured around the antenna. Particularly, communication performance undoubtedly deteriorates if a
plate-like metal is put near the antenna. And to avoid damage to an antenna, do not place projections or
movable parts. Moreover, fix the positional relationship between a module
and an antenna.
3. In order not to induce eddy current, make a cut in the metal plate surrounding the above forbidden zone.
4. If no performance improvement is achieved through the steps described above, attempt to add magnetic
sheet (90 mm × 70 mm or more), as shown in Figure B-2, to the metal surface that faces the card and
keep away the antenna from a metal plate at least 3 mm (d > 3).
keep away the antenna from a metal plate at least 3 mm (d > 3).
Figure B-1: Installation requirements
Side view
Bottom view
Metal forbidden area
1.5 mm or more
Antenna area
Card direction
Card
Cabinet
FPC
When an antenna unit is surrounded with a metal plate,
make sure to make a cut.
make sure to make a cut.
IC
d mm
Do not place a metal plate
below metal forbidden zone
as much as possible.
below metal forbidden zone
as much as possible.
20 mm or more
20 mm or more
30 mm or more
20 mm or more
Magnetic sheet