HME DX300 EU, Руководство по эксплуатации

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Interference Mitigation
Certain techniques can be used in an attempt to mitigate interference between different equipment in the 2 .4 GHz
spectrum . Some of these are:
● Physical separation . If possible, equipment operating in the 2 .4 GHz spectrum should be operating as far as
physically possible from the HME base station . A Wi-Fi access point or router is a common piece of equipment that
could interfere with the DX300 system, or vice versa . These two pieces of equipment in particular should not be
located close together .
● Spectral separation . Most Wi-Fi access points allow the administrator to set the channel and bandwidth that
system operates on . Some systems employ an ‘auto’ mode, in which the Wi-Fi access point will automatically
selected the channel . With Wi-Fi access points, it is sometimes advantageous to manually select a channel
number to keep the Wi-Fi transmission at a fixed location.
● Spectral efficiency . Wi-Fi systems employ a standard sometimes referred to as 802 .11 . The number “11” is simply
the number given to the standard by the Institute of Electrical and Electronics Engineers (the IEEE) . Modern Wi-Fi
routers will allow operation employing the 802 .11n mode . This mode will allow higher data rates, but it also may
consume twice the number of radio channels . If the Wi-Fi router is set to 802 .11n mode, it is best to limit Wi-Fi
bandwidth to 20 MHz .
● Alternate band selection . While most Wi-Fi systems operate at 2 .4 GHz, which is the same band as the DX300
system . Most allow operation at 5 GHz . If possible, move any Wi-Fi access points and equipment to 5 GHz . This
of course requires all Wi-Fi equipment to be 5 GHz capable, and most older equipment may only allow 2 .4 GHz
operation . Selection of 5 GHz may also not be desirable if the Wi-Fi network is for customer access .
Model # EU Version Part # Non-EU Version Part # Comments
BP200 G29663-2B10 G26705-XXX
All BP200 Beltpacks with G26705-XXX part #'s are non
AFH compatible .
BP210 G29663-4B30 G28703-XXX
All BP210 Beltpacks with G28703-XXX part #'s are non
AFH compatible .
WH210 G28741-XXX
All WH210's are non AFH and will not work with Base in
AFH mode .
WH200 G27593-XXX
All WH200's are non AFH and will not work with Base in
AFH mode .
WH220 G29090-8D13 ALL WH220's are AFH compatible .
Part number is located on label under the battery on beltpacks and wireless headsets
Required AFH Equipment
AFH capable headsets and belt packs will have the letters ‘AFH’ labeled on the belt pack and headsets .
Non-AFH Equipment
Headsets and belt packs that are not AFH capable must be operated with either a non-AFH base station . Headsets and
belt packs that are not AFH capable will not have the letters ‘AFH’ .