Posts belonging to Category Wireless



Is There Rain Fade on 60GHz Wireless Signals?

Many new wireless wire and wireless wire dish customers who are unfamiliar with 60GHz have been asking about rain fade and if it’s a major problem on 60GHz.  So let’s look at the facts.

At 60GHz the biggest problem is actually attenuation from Oxygen.  The O2 molecules in the air absorb the RF energy very efficiently at this frequency.  Therefore link distances tend to be much shorter than hoped for if purely considering Free Space Path Loss.  The losses at 60GHz equate to around an extra 15dB per Km over and above any FSPL.  So what about rain, fog, sleet, snow, mist etc?
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What is a Wireless Mesh WiFi Network?

Often referred to as simply a Mesh Network and more frequently in the consumer market as Home Mesh WiFi (or Whole Home WiFi) – this is a system of two or more router-type devices that work together in order to expand WiFi coverage within your home or business. Yet again, we make a comparison to the more commonly used (but massively outperformed and terribly outdated) WiFi extenders and repeaters, as essentially the Mesh WiFi Network will also eliminate WiFi dead spots within their install location and broadcast range.
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What is an AP or WAP in Networking?

A WAP (Wireless Access Point) or more commonly referred to AP (Access Point) is a piece of networking hardware that creates a WLAN (Wireless Local Area Network), enabling WiFi compatible devices to connect to the main wired network. In a standard configuration, the AP would normally connect to a wired router, network switch or network hub via an Ethernet cable, enabling it to broadcast a WiFi signal within a designated area; any nearby WiFi compatible devices are then able to connect wirelessly to this new Local Area Network without the need to connect to the wired router (hub or switch).
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Can I use 60GHz for PtP or PtMP links in the UK ?

Wireless Wire Dish

The arrival earlier this year of the MikroTik Wireless Wire and shortly after the MikroTik Wireless Wire Dish caused a large amount of excitement in the WISP industry and sales have proven them to be very popular products.  The use of 60GHz instead of 5GHz for point to point and point to multi-point links opens many new possibilities and challenges.

60GHz offers substantially less interference and much higher throughput speeds. Less interference because the band is almost completely unoccupied, uses very narrow radio antenna beams therefore offers much higher co-located frequency re-use. Also much higher throughput is possible up to as high as 1Gbps Full Duplex.
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Wi-Fi Protected Access 3 – WPA3

Back in January 2018, the Wi-Fi Alliance announced in their Press Release that a new Wi-Fi Protected Access®  (aka WPA) certification program had been launched. First there was WPA™, then there was WPA2™, unsurprisingly therefore the new system was called WPA3™. (Note that WPA, WPA2 and WPA3 are not ‘standards’, nor are they ‘protocols’, they are ‘Wi-Fi Alliance certification programs‘. In fact, the standard for WPA2 was actually 802.11i).
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What is a WISP?

WISP is a Wireless Internet Service Provider; they normally use wireless networking technology to offer customers with poor or non-existent broadband coverage, access to superior broadband speeds. These customers tend to live in areas where their broadband coverage is less than adequate, often located in more rural areas of the country where there is no fibre optic cable infrastructure already in place.
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What’s the difference between the 802.11ac WiFi standard and previous versions?

The 802.11ac WiFi standard was introduced to enable more reliable and higher performance networking tasks like streaming HD video, playing online games without lag, or migrating large amounts of data in a shorter time span. Compared to the previous 802.11n WiFi standard, it uses a wider RF bandwidth up to 160 MHz (instead of 40 MHz) and allows the use of up to 8 x MIMO streams (instead of 4).
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What is MIMO Wireless Technology?

MIMO – Multiple-Input Multiple-Output is a technology utilised in some WiFi products that uses multiple antennas to transmit and receive wireless signals; This usually leads to a stronger, more reliable signal when compared to single antenna alternatives.

MIMO is actually a combination of two technologies – SIMO (Single-Input Multiple-Output) and MISO (Multiple-Input Single-Output). When MIMO combines these two wireless systems, it does so by using multiple antennas to both send and receive signals. This usually leads to a stronger, more reliable signal when compared to single antenna alternatives.
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News: MikroTik and Ubiquiti fix WPA2 Client Vulnerability

For those unfamiliar with this latest WPA2 Security Vulnerability, please bear in mind the problem is on the client device, not the AP. Therefore rushing to patch your APs is not going to solve all the problems in your network from this vulnerability!

Of course, if you’re using WPA-TKIP (or using ‘both’ TKIP and AES), you DO have more problems than this attack. Therefore please ensure that any support for TKIP is disabled!  If you’re using WEP, this vulnerability will not affect you, but then again, you have even bigger problems anyway!
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New UAP AC Range

AC Range

 

The UAP-AC-Lite

The AC-Lite is the entry-level product for Ubiquiti’s new range of AC access points. As the name suggests it is both the smallest and lightest of the UAPs measuring just 160 x 160 x 31.45 mm and weighing in at 170g (185g with the mounting kit). It boasts speeds of up to 300Mbps on the 2.4GHz band and 867Mbps on the 5Ghz band, and a maximum range of 125m (400ft).
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