Showing posts with label WiFi. Show all posts
Showing posts with label WiFi. Show all posts

Apr 21, 2017

WiFi vs. Plugged In Speeds

Each Wi-Fi standard is rated according to its maximum theoretical network bandwidth. The newest, 802.11ac offers up to 1 Gbps (1,000 Mbps). However, the performance of Wi-Fi networks practically never approach these theoretical maximums, usually performing at about half of peak speed. If you compare 300 Mbps WiFi to wired Fast Ethernet at 100 Mbps, the Ethernet connection most often outperforms in real world usage.
Wi-Fi networks have a range that is limited by the transmission power, antenna type, the location, physical obstacles, such as walls, number of other devices sharing the signal, and the environment. A typical indoor wireless router might have a solid range of about 32 meters (105 ft). Distance from the source also degrades performance. The fastest theoretical WiFi 802.11 ac is maximum speed of 866.7 Mb/s.

Plugged in (Ethernet) offers advantages, such as faster speeds, lower latency, and no wireless interference problems.  A wired Ethernet connection can theoretically offer up to 10 Gb/s.

Bottom line, when it comes to speed necessary for streaming movies and TV WiFi may be more convenient, but is much slower and may cause delays and hesitations. Also, when looking at your speed, consider 10Mbs as the absolute minimum for streaming - and more is better.

Incidentally, no matter how fast your WiFi is within your house, it does not increase the speed of the connection between your house and the Internet.

Feb 6, 2015

WiFi Dilemma

Get the WiFi passwords at various places by checking the comments section of their FourSquare accounts. You are welcome.

Jun 20, 2014

Beware Hot Spots

Comcast is doing something different, adding your router output as free WiFi to others passing by. It is also an opt-out solution, which means it is enabled by default and you need to turn it off. It also does not pay you for this use by others.

Comcast is quietly turning on public hotspots in its customers’ routers and turning private homes into public hotspots. Other Comcast customers get free Wi-Fi wherever there is a Comcast box and the company gets to build out a private network to compete with telecoms, but using your resources.

Fifty thousand users with basic modems that Comcast cable provides have already been turned into public hotspots in Houston, and there are plans to enable 150,000 more.

It is using your private residence as a corporate resource and using your electricity, your Internet connection, and potentially opening up your private browsing to hackers. Comcast says these two streams are independent, but that has never stopped hackers. There is also nothing to stop someone from downloading illicit material, software, and other junk from your hotspot, implicating you if caught. Remember, if there is a line out, that means there is also a line in. Caveat Emptor Comcast users.

Sep 26, 2012

Cheap Tablets

Fry's now sells a 7 inch tablet for $56. It has a bunch of models under a hundred dollars. Prices are dropping faster than anyone could imagine. At that price they become an impulse buy. It has mail, front camera, internet, and uses Wifi. Toys R Us is even selling a tablet specifically for children.

The name Wifi is not an acronym, it is just a trademark term with no meaning. Some erroneously think it means wireless fidelity, because it sounds like the old HiFi term.