[OS X] Diagnosing Wi-Fi – a hidden utility in Mavericks




[OS X] Diagnosing Wi-Fi – a hidden utility in Mavericks


Wireless Diagnostics Mavericks

The information below is intended to owners of new MacBook Air and Pro – those who absolutely treacherous manner deprived of choice how you connect to the Internet. It will also be useful to read all those interested in the state of network connectivity via Wi-Fi your Mac.

In fact, there is a choice: no LAN connector compensated with the opportunity to purchase a pair of adapters to choose from. It may already be out of date “perehodnichok» Apple USB Ethernet adapter or full gigabit Thunderbolt – Gigabit Ethernet, they are freely available, each worth less than a thousand rubles. But all the same wire – is the last century: awkward lie on the couch and stuff like that. Sometimes there is no choice and to use such methods to connect accounts, but I never in a real situation never encountered such.

Apple Ethernet Adapters

Let us return to our subject – diagnostic utility Wi-Fi in the Mavericks. Few people know that it exists, and are happy to use applications from third-party developers – for example, iStumbler , Wi-Fi Explorer and the like. I do not advocate the use of applications, one way or another copying capabilities preset programs, just do not see the point in it, so I try to do what is “complete.” Lovers of third-party programs can advise to look aside program iNet , have a desktop and mobile version, an incredible number of useful features and amenities, but more on that another time.

So. Diagnostic Utility Wi-Fi in the Mavericks moved by usual address /System/Library/CoreServices not find her. The new address is as follows: /System/Library/CoreServices/Applications . You can open the Finder, press the key combination Command + Shift + G, a new way to copy and paste in the transfer window. Pressing Enter, you will be taken straight to the place where the Diagnostic Utility Wi-Fi, what to do next – I think, you know.

WiFi Diagnistics Application Path

There is a second, easier way to get to the object of our conversation. Requires only a click while holding the Alt key on the Wi-Fi icon in the menu bar, select «Wireless Diagnostics», then bring up the diagnostics utility Wi-Fi keyboard spell Command +2. By the way, the basic parameters of the current connection Wi-Fi, such as channel number, frequency, security protocol, connection speed and other visible in the drop-down box when you click on the icon Wi-Fi c mouse Alt.

WiFi menubar

For what everything was started. Built-in diagnostic capabilities Utilities Wi-Fi is enough to get detailed information about the network type and connection parameters, all provided in a window with five tabs: “Info”, “Capture frame”, “Date”, “Overall scanning Wi- Fi-networks “and” Performance. ” More than just a useful and interesting to have three of them.

Quick access to useful information about the state of the wireless Wi-Fi and wired network connections for current information window:


Wednesday wireless network

Network Configuration

WiFi info
“Overall scanning Wi-Fi-networks”

Scanning wireless Wi-Fi network and checks the detected routers Wi-Fi. It includes information about the network name, type the password, protocol, signal strength, interference, and channel bandwidth and the country for which the router has been made. The practical benefit of this solution is invaluable: based on, you can select the least busy channel for your router, in modern high-rise buildings is especially important. If there is a free “window” in the channel list, you should not choose a nearby channel, and through at least one. For example, busy 6th and 10th, you should choose the 8th. Just do not forget to press the button “Search!”

WiFi Scan

Window contains information about the performance of an existing connection, as well as two graphic signals, displayed in real time.

Graph SNR compares the level of interference and a transmission power signal, wherein the signal graph (dBm), divides them into two parts. Higher values ​​are preferable. As the distance from the Wi-Fi router values ​​become less and reception deteriorates until it is completely gone. This can also happen if the signal between your Mac and your router is blocked by some materials, such as walls covered in tiles, steel, etc.

Signal (dBm). The signal strength (RSSI) above, if the input signal value is less than, -30 therefore better than -55. Interference estimated vice versa. Fewer better interference signal, however -80 better than -90. The more noise (blue line), the worse the signal quality. The greater the difference between the RSSI and the interference, the better.

WiFi Performance

In general, such a dataset is sufficient to produce technically accurate diagnosis and configuration of your connection Wi-Fi, to evaluate the advantages and disadvantages of the current location and configuration of the router. Built-in Diagnostic Utility Mavericks Wi-Fi – a powerful and self-sufficient tool at the same time intuitive and indispensable assistant to set up the connection to your Mac via a wireless data transfer protocol.


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