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ZyXEL – SBG Support Notes
unsynchronized receiver an FHSS transmission appears to be
short-duration impulse noise. 802.11 may use FHSS or DSSS.
Do I need the same kind of antenna on both sides of a link?
No. Provided that the antenna is optimally designed for 2.4 GHz or 5 GHz
operations. WLAN NICs often include an internal antenna which may
provide sufficient reception.
What is the 2.4 GHz frequency range?
This frequency range has been set aside by the FCC, and is generally
labeled the ISM band. A few years ago Apple and several other large
corporations requested that the FCC allow the development of wireless
networks within this frequency range. What we have today is a protocol
and system that allows for unlicensed use of radios within a prescribed
power level. The ISM band is populated by Industrial, Scientific and
Medical devices that are all low power devices, but can interfere with each
other.
What is Server Set Identifier (SSID)?
SSID is a configurable identification that allows clients to communicate to
the appropriate base station. With proper configuration, only clients that
are configured with the same SSID can communicate with base stations
having the same SSID. SSID from a security point of view acts as a simple
single shared password between base stations and clients.
What is an ESSID?
ESSID stands for Extended Service Set Identifier and identifies the
wireless LAN. The ESSID of the mobile device must match the ESSID of the
AP to communicate with the AP. The ESSID is an up to 32-character string
and is case-sensitive.
How do I secure the data across an Access Point's radio link?
Enable Wired Equivalency Protocol (WEP) or Wi-Fi Protected Access (WPA)
to encrypt the payload of packets sent across a radio link.
What is WEP?
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