Aristóteles Machado

UHD - Ultra High Definition, these high definition cameras are made up of a new and remarkable technology used by recording studios video RED long.

We barely got used to watching videos in 1080p and the studios, this is simply crap, who makes movies, you have to think of something much greater, because you need to edit, model, and adjust images to create realistic scenarios with effects never imagined. It seems that in the next few years, the image 4Kp will be gone.

Today, we usually see a 1080p, and there are cameras, like the one above, with resolution up to 4520x2540 pixels, or nearly 4 times the current 1920x1080 we see in movies on Blu-Ray and soon on Youtube Full HD. Because the H.264 CODEC, uncompressed video that could hold almost 1.4 Gb/sec, does not reach 2 Mbps with the quality of 1080p without any distortion. So what is the format of the videos of Blu-Ray and HD videos in Youtube.

So far, there is no official release of the Youtube 1080p Full HD, currently the largest video is in 720p (1280x720p), but the official blog of Youtube, are already receiving and converting videos in 1080p (1920x1080). If the HD Youtube for some people is already slow, imagine the new version. How will broadband require the user to attend without further annoying crashes? However, it creates the unique quality of images.

Source: http://www.red.com/cameras/technology/

Setting Advanced Properties: Dell Wireless WLAN Card User Guide

802.11h+d
Afterburner
Antenna Diversity
Band Preference
Bluetooth Collaboration
BSS Mode
Disable Upon Wired Connect
IBSS Allowed
IBSS 54g(tm) Protection Mode
IBSS Mode
AP Compatibility Mode
Locally Administered MAC Address
Location
Manage Wireless Settings
Minimum Power Consumption
PLCP Header
Power Save Mode
Radio Enable/Disable
Rate
Rate (802.11a)
Rate (802.11b/g)
Disable Bands
Fragmentation Threshold
Roaming Decision
Roam Tendency
RTS Threshold
SSID Autopromote
WMM
WZC IBSS Channel Number
WZC Managed Ethernet
XPress (TM) Technology

To set the advanced properties of your WLAN card, open the Properties window to the Advanced tab.

To view the value of a property, click the name of the property in the Property list. The property value is displayed in the Value box. To change the value, click an option in the Value list or type a new value, as appropriate (selection options are different for different properties).
The available properties and their respective settings are described below.

NOTE: Some of the properties may not be available on your model of the Dell Wireless WLAN Card.

802.11h+d

The 802.11h+d property configures the advanced radio control of the WLAN card by an associated access point. The controls are enabled when the 802.11h+d property is set to Loose 11h, Loose 11h+d, or Strict 11h. When the setting is Strict 11h, the Dell Wireless WLAN Card associates only to access points supporting IEEE 802.11h protocols when operating in regions with special restrictions on radio operation. When the setting is Loose 11h, the WLAN card does not restrict associations based on the access point IEEE 802.11h support. When the setting is Loose 11h+d, the Dell Wireless WLAN Card does not restrict associations based on the access point IEEE 802.11h or IEEE 802.11d support.

Disabled (default)

Loose 11h

Loose 11h+d

Strict 11h

Afterburner

Afterburner is a Broadcom proprietary high-performance implementation of a faster throughput added to wireless products that conform to IEEE 802.11g.

Disabled (default). Disables Afterburner.

Enabled. Enables Afterburner

Antenna Diversity

Antenna Diversity is a function included in most wireless LAN equipment that has two antennas, Main and Aux. When set to Auto, Antenna Diversity monitors the signal from each antenna and automatically switches to the one with the better signal.

Auto (default).

Aux.

Main.

Band Preference

The Band Preference property is available only on Dell Wireless WLAN Card models that have dual-band capability. Band Preference allows users to specify the IEEE 802.11 band preference while roaming . This allows the wireless client to associate with another AP based on band preference even if the signal from the currently associated AP is strong enough to sustain the association .

None (default). Roams without regard to the frequency band of the available APs.

Prefer 802.11a (5 GHz band)

Prefer 802.11g/b (2.4 GHz band)

Bluetooth Collaboration

Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.

Enable (default)

Disable

BSS Mode

BSS mode is used to to restrict the IEEE 802.11b/g band to IEEE 802.11b only mode. BSS Mode applies to networks that are configured for access points.

Default (default)

802.11b Only

Disable Upon Wired Connect

If this property is set to Enabled, whenever your computer is connected to an Ethernet port and the link state is good, the computer automatically turns off the IEEE 802.11 radio. This conserves IP address allocation, reduces security risks, resolves dual interface routing issues, and prolongs battery life.

Disabled (default)

Enabled

IBSS Allowed

This property must be set to Enabled for you to use the Dell Wireless WLAN Card Utility or Wireless Network Wizard to create or connect to an ad hoc network. Your network administrator may require this property to be set to Disabled for security reasons.

Enabled (default)

Disabled

IBSS 54g(tm) Protection Mode

A mechanism of prefixing each OFDM data frame with a request to send/clear to send (RTS/CTS) complimentary code keying (CCK) frame sequence. The duration fields of the RTS and CTS frames should allow the IEEE 802.11b node to correctly set its network allocation vector (NAV) and avoid collisions with the subsequent OFDM frames. As required for Wi-Fi®, protection mechanisms are enabled automatically whenever an IEEE 802.11b STA joins the BSS. If no IEEE 802.11b STA joins, then no protection mechanism is used and full IEEE 802.11g performance is attained.

Auto

Disabled

IBSS Mode

IBSS Mode is used to set the connection type in an ad hoc network. The following options are available:

802.11b Mode (default). Links only with IEEE 802.11b networks at the highest rate. Also, it excludes IEEE 802.11g networks.

802.11g Mode. Links only with IEEE 802.11g networks at the highest rate.

AP Compatibility Mode

Some older APs may have implementations that deviate from IEEE 802.11 standards. Setting this property to Broader Compatibility enables your Dell Wireless WLAN Card to better communicate with such APs, but at the expense of some performance loss. The default setting is Higher Performance.

Higher Performance (default)

Broader Compatibility

Locally Administered MAC Address

Locally Administered MAC Address is used to override the MAC address of the Dell Wireless WLAN Card. The Locally Administered MAC Address is a user-defined MAC address that is used in place of the MAC address originally assigned to the network adapter. Every adapter in the network must have its own unique MAC address. This locally administered address consists of a 12-digit hexadecimal number.

Value. Assigns a unique node address for the adapter.

Not Present (Default). Uses the factory-assigned node address on the adapter.

The appropriate assigned ranges and exceptions for the locally administered address include the following:

The range is 00:00:00:00:00:01 to FF:FF:FF:FF:FF:FD.
Do not use a multicast address (least significant bit of the high byte = 1).
Do not use all 0s or all F's.

Location

Users who purchased their Dell Wireless WLAN Card in the United States have USA as the default location; users who purchased their Dell Wireless WLAN Card in Japan have Japan as their default location. For all other users, the Location property is not available. See Radio Approvals for additional information.

Manage Wireless Settings

When the Manage Wireless Settings property is enabled, the Let this tool manage your wireless network settings check box on the Wireless Networks tab of the Dell Wireless WLAN Card Utility is selected.

Enabled (default)

Disabled

Minimum Power Consumption

When enabled, this property enables the wireless client to either turn off the radio or to not scan when the wireless client network is unassociated or when the computer is in the IDLE state.

Enabled (default)

Disabled

PLCP Header

PLCP Header is used to set the header type used for CCK rates. The type can be Long or Auto (short/long).

Auto (Short/Long) (default)

Long

Power Save Mode

The Power Save Mode property is used to put the wireless client computer into the IEEE 802.11 Power Save mode. When the Power Save Mode property is enabled, the radio is periodically powered down to conserve power. When the radio is in Power Save Mode, packets are stored in the AP until the radio comes on. The Fast setting allows full throughput with power savings.

Fast (default)

Enabled

Disabled

Radio Enable/Disable

When the value of this property is set to Disabled, the radio is turned off. It may be necessary at times to turn off the radio to comply with restrictions prohibiting the emission of radio signals, such as during takeoff and landing onboard a commercial aircraft. Changing the value to Enabled turns the radio back on. Certain computers may have other more convenient methods for turning the radio on and off. Refer to operating manual that came with the computer to see if such features exist.

Enabled (default)

Disabled

Rate

This property allows you to specify the rate (in Mbit/s) at which data is transmitted. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate. This setting automatically adjusts the transmission rate to the optimal rate based on the capabilities of the other wireless clients and access points.

NOTE: The default value for this property is set for maximum performance. Therefore, it is not recommended for home users to change the value. Only network administrators or technicians with wireless LAN experience should attempt to make any changes.

Rate (802.11a)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11a operation. The possible values are: 6, 9, 12, 18, 24, 36, 48, and 54. The default is set to Use best Rate.

Rate (802.11b/g)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11b/g operation. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate.

Disable Bands

This property is available only on Dell Wireless WLAN Card models that have dual-band capability.

None (default)

Disable 802.11g/b

Disable 802.11a

Fragmentation Threshold

The maximum size in bytes at which packets are fragmented and transmitted a piece at a time instead of all at once. Available values range from 256 to 2346. The default value is 2346.

Roaming Decision

The signal strength value that determines when the Dell Wireless WLAN Card starts scanning for other APs.

Default (default). −75 dB

Optimize Bandwidth. −65 dB

Optimize Distance. −85 dB

Roam Tendency

This property adjusts the roaming thresholds for the Dell Wireless WLAN Card.

Moderate (default). Roams to APs having a signal strength at least 20 dB greater than the current access point.

Aggressive. Roams to APs having a signal strength at least 10 dB greater than the current access point.

Conservative. Roams to APs having a signal strength at least 30 dB greater than the current access point.

RTS Threshold

If the number of frames in the data packet is at or above the RTS Threshold, a request to send/clear to send handshake is turned on before sending the data packet. The default value is 2347. The range is 0 to 2347.

SSID Autopromote

If you used the Wireless Network Wizard or the Wireless Network Connection Settings tool to connect to wireless networks, each network that you have connected to is listed under Preferred network connections on the Wireless Networks tab of the Dell Wireless WLAN Card Utility. Each time you start your computer, the computer automatically attempts to connect to the network at the top of the list. If that network is within range, the connection is made. If it is not within range, your computer attempts to connect to the next network on the list, and continues the process until it finds a network that is within range. You can move any preferred network up or down the list.
If the SSID Autopromote property is disabled, you can manually override the automatic network connection process and connect to the network of your choice, regardless of its position on the list (see "Utility Controls"). If the SSID Autopromote property is enabled, you cannot manually override the automatic connection process.

Disabled (default)

Enabled

WMM

Wi-Fi Multimedia (WMM™). The WMM property enables quality of service for audio, video, and voice applications over a wireless network by prioritizing streams of content and optimizing the way the network allocates bandwidth among competing applications.

Auto (default). With WMM set to Auto, when the wireless client connects to the AP, and the AP has Unscheduled Automatic Power Save Delivery (UAPSD) enabled, the wireless client is allowed to enter Power Save mode.

Enabled. The wireless client enters Power Save mode for WMM associations independent of whether the AP has UAPSD enabled or disabled.

Disabled. The wireless client does not have WMM association.

WZC IBSS Channel Number

The WZC IBSS Channel Number property selects the independent basic service set (IBSS) channel number on which to operate when WZC is managing your wireless networks. The default setting is 11.

WZC Managed Ethernet

If the WZC Managed Ethernet property enabled, Wireless Zero Configuration Service (WZC) is enabled to manage 802.1x connections for Ethernet devices in your computer. This setting only applies if the Dell Wireless WLAN Card Utility is enabled to manage your Dell Wireless WLAN Card.

Disabled (default)

Enabled

XPress (TM) Technology

Xpress™ Technology is a proprietary frame bursting technology that improves throughput by repackaging data so that more data can be sent in each frame. Xpress™ Technology is disabled by default.

Disabled (default). Disables Xpress™ Technology.

Enabled. Enables Xpress™ Technology.

From: http://support.dell.com/support/edocs/network/p70008/EN/props.htm

Youtube Videos

Keywords

Search in this blog

Archive

Informática