Archive for the 'General' Category

Colombia trip blog updates

I’ve finally finished the last of the blog entries from our trip to Colombia.

You can find an index here: Colombia 2012

I’ve also added a few new photos to existing entries as I discovered some photos which had not yet been downloaded from various cameras – with phones and computers all having cameras now, there’s actually quite a few places to remember to check for these things!

Here is a quick list of the new photos:

Day 34 – Armenia to Bogota - new photo of Leanne at El Eden airport (taken by Andres on the tablet computer)

Day 38 – Monserrate - two new photos of Nicol added right at the end of the blog entry, stills extracted from video footage

Day 40 – Artesanias Maku Bogota - three new photos of our room at the Halifax hotel

There are still more updates to come when I get the time:

  • I have not processed any of the video yet – I estimate there’s somewhere in excess of 12 hours of video I need to trawl through to see if there’s anything worth uploading. A lot of it will go on the kids’ private blog rather than my public blog – but I do intend to upload some of the scenery footage here.
  • I have nearly 98,000 time lapse images from about 27 trips I need to process into videos. This is a time consuming process due to the very high number of images captured – so it will take some time to get it all done.
  • I have GPS track logs from most of our outings, which I plan on including on the relevant blog entries overlaid onto maps to indicate where it was we travelled.

When I’ve gone back and updated some of the blog entries with these things, I will post another update entry explaining what has been added.

How to extend the range of your home WiFi network

There are several approaches for increasing the range of your home’s WiFi network. Two basic options are:

  1. use a Wireless Access Point to add additional wireless coverage to your network
  2. use a Wireless Range Extender to increase the coverage of your WiFi

They achieve largely the same result, but via two very different methods, and both have their pros and cons.

First up, you need to understand the difference between a Wireless Range Extender and a Wireless Access Point.

A Wireless Access Point is simply a device which allows your devices to connect via WiFi to your network. Your internet router probably has WiFi capabilities, thus it already acts as a Wireless Access Point, connecting your WiFi devices to the network and then to the internet.

Typical Home Network with Wireless Router

Rather than connecting to your home network via the router’s Wireless Access Point, it is possible to move that access point to a different location in the house by connecting a long ethernet network cable to your router, running it to another room, and then connecting a dedicated Wireless Access Point device to the other end of the cable.

Creating a separate WiFi cloud using a Wireless Access Point connected to your router via an ethernet cable

This then creates a second separate WiFi cloud for devices to connect to. Of course, this requires you to either have existing cable installed in the house, or to be able to lay new cable runs through the roof cavity or perhaps under the floor.

If cabling is a problem, an alternative might be to use a paid or Ethernet over Power (EoP) adaptors to utilise your home’s existing power cabling as part of your network. EoP works by having a special power plug adaptor plugged into a power point near your router and connected to it via an ethernet cable. You then have a second of these adaptors in another room also plugged into a power point. The second adaptor is then connected to your Wireless Access Point device via a network cable.

Moving the Wireless Access Point to a new location, connected to the router via Ethernet over Power adaptors rather than a long ethernet cable run

The effectiveness of these adaptors depends on a lot of factors, including the quality of your power cabling, the distance between the adaptors, the amount of interference on the electrical circuits, the number of electrical devices connected to the power and so on. It also requires that the power points used in each room be on the same physical power circuit. Sometimes homes are divided into multiple power circuits, each separately connected to the main power switchboard. In these cases, if the two power points you wish to use are on separate circuits, the EoP adaptors might not work at all.

This solution using Ethernet over Power and a separate Wireless Access Point is what I currently use in my house to create a second WiFi cloud for me to access the network and internet. I use a pair of NetComm NP210 Ethernet over Power adaptors to extend my “physical” network to an old Billion 7401VGP R3 router which is configured to act purely as a Wireless Access Point rather than a router.

The other alternative to using Wireless Access Points is to simply attempt to extend the coverage of your existing WiFi network by using a Wireless Range Extender.

Extenders are simply a form of “repeater” in that they listen for WiFi signals and then just repeat what they find to whomever is listening.

Extending the reach of your WiFi network using a Wireless Range Extender

Wireless Range Extenders are generally much easier to set up than a separate Wireless Access Point, since there is no need to run additional ethernet cabling or rely on solutions such as Ethernet over Power to make it work.

The main downside with range extenders is that the extender itself must still be within range of the existing WiFi network (ie your router). It must be able to see the wireless signals coming from your router’s wireless access point so that it can then “repeat” them out over the range it covers itself.

Wireless Range Extender must be within range of the main Wireless Access Point (router)

This potentially limits the usefulness of a range extender in some situations where the desired range is too far for the combined router plus extender networks to reach.

Sydney Harbour Bridge

As seen from Kirribilli

This was posted directly from my Nokia N900 using the Pixelpipe photo sharing service. This note added later using WordPress for N900.

Nokia N900

Just bought myself a Nokia N900 mobile computer.

This blog post was written using the MaStory application on the N900.

Works well!

Dragonfly

Another walk through Munro Park – this time it was a particularly pretty dragonfly I came across on the walk. He sat still long enough for me to get a couple of good photos of him.

Dragonfly

Dragonfly