User's Manual
Table Of Contents
- Chapter I: Product Information
- CHAPTER II: Driver Installation and Configuration
- 2-1 Network Adapter Installation
- 2-2 Connect to Wireless Access Point
- 2-2-1 Using Realtek Utility
- NOTE: If you insert the USB wireless network adapter into an USB 3.0 port and connect to an 11ac AP, device driver will doing auto USB mode switch and shown the message as below photo, or you will heard sounds of USB insert or unplug, this is the norm...
- 2-2-2 Using Windows Zero Configuration
- 2-3 Connection Profile Management
- 2-3-1 Add a New Profile
- 2-3-2 Remove an Existing Profile
- If you have added a profile before, and you wish to change the content of the profile, you can use this function. Please select a profile from the list first, then click ‘Edit’ button. You’ll be provided with the contents of selected profile, and you ...
- 2-3-4 Make a Copy of an Existing Profile
- 2-4 View Network Statistics, General Information, and Status
- 2-4-1 General Information
- 2-4-2 Status
- 2-5 Miscellaneous Settings
- 2-6 Establish a Secure Connection with AP by WPS
- 3-1 Switch to AP Mode and Station Mode
- 3-1-2 Setup Soft-AP Security
- 3-2 Advanced Settings
- 3-3 Wireless Statistics
- 3-4 Internet Connection Sharing (ICS)
- 4-1 Hardware Specification
- 4-2 Troubleshooting
- 4-3 Glossary
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12. What is DSSS? What is FHSS? And what are their differences?
Frequency-hopping spread-spectrum (FHSS) uses a narrowband
carrier that changes frequency in a pattern that is known to both
transmitter and receiver. Properly synchronized, the net effect is to
maintain a single logical channel. To an unintended receiver, FHSS
appears to be short-duration impulse noise. Direct-sequence
spread-spectrum (DSSS) generates a redundant bit pattern for each
bit to be transmitted. This bit pattern is called a chip (or chipping
code). The longer the chip is, the greater the probability that the
original data can be recovered. Even if one or more bits in the chip
are damaged during transmission, statistical techniques embedded in
the radio can recover the original data without-the need for
retransmission. To an unintended receiver, DSSS appears as low
power wideband noise and is rejected (ignored) by most narrowband
receivers.
13. What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency
technique developed by the military for use in reliable, secure,
mission-critical communication systems. It is designed to trade off
bandwidth efficiency for reliability, integrity, and security. In other
words, more bandwidth is consumed than in the case of narrowband
transmission, but the trade off produces a signal that is, in effect,
louder and thus easier to detect, provided that the receiver knows the
parameters of the spread-spectrum signal being broadcast. If a
receiver is not tuned to the right frequency, a spread –spectrum
signal looks like background noise. There are two main alternatives,
Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping
Spread Spectrum (FHSS).
14. What is WPS?
WPS stands for Wi-Fi Protected Setup. It provides a simple way to
establish unencrypted or encrypted connections between wireless
clients and access point automatically. User can press a software or
hardware button to activate WPS function, and WPS-compatible
wireless clients and access point will establish connection by
themselves. There are two types of WPS: PBC (Push-Button
Configuration) and PIN code.