All White Papers & Articles

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Published: 05/12/2013 1:14 pm
Last Edit: 29/05/2014 2:05 pm
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Category: All White Papers & Articles, WiFi Articles

WiFi Solutions for Holiday Parks

This article suggests possible scenarios for delivering broadcast WiFi for public areas such as holiday parks, caravan sites and marinas. I also discuss what you can do for user management. The purposes of this management could be so you can offer a chargeable service and/or so you can control and have traceability for site visits and usage: This final point might well be something that you need if Ofcom come knocking on your door accusing you of downloading a rip off DVD through your internet connection!
The WiFi broadcast methods discussed here centre around scattering WiFi nodes around the site to give complete WiFi coverage. However, before going through the various methods to achieve this, first of all we need to discuss the issues of where a signal will reach and where it will not. They key point is wireless doesn’t go through walls or buildings or caravans! So you need to mount your outdoor wireless devices so that users can get clear line of sight to where the WiFi is being sent from. If the user is in a caravan or a metal hulled boat then that means the window of the caravan/boat needs to be aimed at where the WiFi is coming from. This means, when covering a park or ‘van site, that you need to scatter WiFi transmitter nodes around the site to give all users clear connectivity. Of course you also want to keep the number of nodes down to reduce interference, boost throughput and to reduce costs. Deciding how many WiFi nodes to install and where to  mount them for optimum coverage is, in my opinion, the hard part!

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Published: 06/11/2013 11:02 am
Last Edit: 29/05/2014 2:05 pm
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Category: All White Papers & Articles, HomePlug Articles

Why can buying a HomePlug be so complicated? Surely a 200AV plug is just a plug, don’t they all do the same thing?

Why can buying a HomePlug be so complicated? Surely a 200AV plug is just a plug, don’t they all do the same thing? Why are they all so different in price when at the end of the day they all look the same?  Well the truth is, although they might all look much the same, the inside can vary immensely from plug to plug.  What many people don’t understand is that there are different chipset levels.

What is a chipset? A chipset is a set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals.  Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.

What this actually means in the real world is that a chipset is the piece inside the HomePlug that makes it work and sets the specification level of the plug.  Continue reading…


Published: 18/10/2013 9:41 am
Last Edit: 29/05/2014 2:05 pm
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Category: All White Papers & Articles, HomePlug Articles

What is HomePlug over Twisted Pair?

Traditional Homeplug is a method of transmitting network data down standard mains powered cables. So the network data is overlaid onto the mains signals. Typical applications are networking around the home via the mains sockets. This is the application of Homeplug that 99% of people are familiar with. However, it is also possible to send Homeplug signals down other cable types; the Homeplug technology is flexible and independent of the cable type or the infrastructure used for the transport of the signals – you just need to make sure that the product has the necessary hardware interface specific to the type of cabling or transport infrastructure you want to use the units on. So with the correct hardware interface on the Homeplug units you could, for example, use Homeplug networking down coaxial cable or standard twisted pair wire. The advantages of Homeplug over more dedicated cabling, compared to over active mains cables, are much higher data transmission rates and longer cable runs. The electrical noise invariably present on normal mains wiring and the complications present in how the cable is distributed (spurs, consumer units etc) often limits the effective data speed and also restricts the length of cable runs you can get away with. Homeplug over, for example, twisted pair wire can give TCP data throughputs in excess of 25Mbps with cable runs of 500m.

Continue reading…


Published: 10/10/2013 1:26 pm
Last Edit: 29/05/2014 2:06 pm
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Category: All White Papers & Articles, WiFi Articles

What should I consider when buying a Wi-Fi repeater?

A Wi-Fi repeater, such as the WL559E from Aztech, works by listening out for Wi-Fi transmissions and then re broadcasting the original transmission.

net-wl559e

Your throughput will be halved as everything has to be sent twice and each Wi-Fi transmission cannot occur at the same time!

The repeater needs to be positioned where it can get a good signal from the original Wi-Fi device (your router) so that it can then repeat the signal further.


Published: 23/09/2013 1:19 pm
Last Edit: 29/05/2014 2:06 pm
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Category: All White Papers & Articles, WiFi Articles

Do I need a bigger antenna for my WiFi router?

A common, but understandable, misconception is that increasing the size of the antenna on WiFi equipment will make the signal much better; unfortunately it often has the opposite effect and makes things worse!

Indoor Access Point Router with removable antenna

Put simply, all an antenna does is focus a signal, much like a torch might have a long narrow beam or a short wide one.

Continue reading…


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