John Galea's Blog

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Home power line adapters

I colleague at work had a pair of home power line network adapters so I borrowed them to play. The idea is that if you can’t pull a wire (or won’t) and can’t do wireless then this is a last choice solution to providing networking to a remote machine in your home, dorm or whatever. The way it works is it uses the power lines in your walls to create a network between the two adapters (you need at least a pair). The adapters work like a hub and create a link for you. You can put one next to your home router for example and that will allow you to have this network join your existing network in your home as well as to provide internet to the remote computer. The adapter have absolutely no configuration possible. They do not have a DHCP server so if you are not plugging into an existing home network then you will have to do manual IP address. The ones I tested provide one Ethernet wired connection and plug into the wall. The item is a little bulky so blocks the use of splitters/octupus, and they do not have passthru on them. They can not be plugged into surge suppressors or UPS because the transformers in these will block the signal. Security wise this is none. So be aware, while I have not proven it, it seems likely that your neighbor could purchase the same adapter and tap into your network (and your internet) without your knowledge. This is a bit troubling for me … To use this particular layout would require a wired ethernet adapter, something not all laptops have. Speed wise from these devices (which are VERY old) I got about 1MB/s when one was upstairs and the other downstairs. When they were right next to each other this picked up to about 3-4MB/s but either way a far cry below the advertised 85Mb/s (notice that’s bit/s). So in the end the work, are simple as pie to setup but are slow (well these ones are anyway).


January 30, 2017 Posted by | Other reviews, Uncategorized | Leave a comment

Converting old home movies

If your like me you have some old video tapes. Mine are home movies of my daughter when she was young. They are precious and I didn’t want to loose them. Some are more than 15 years old and I was concerned they would eventually degrade so I wanted to digitize them to keep them for all time, as well as make them more convenient to watch. So I looked around a bit and found a cheap USB video capture adapter on Amazon. It was supposed to come with uLead but came with a barely functional PVR from a company called Honetech. I dug out the VCR (actually had to borrow one from a friend the drive belt on mine had disintegrated), found the cables and hooked it up. The code once installed is super basic but does work. I didn’t bother trying to edit the captured video, rather simply pressed play and pause and separated the videos by topic. On default settings here are the capture settings:
The captured video ends up being 16.3M/min. So a 55 min video ends up around 900MB. This works out to only be around .27M/s so a USB 2 device is more than adequate. All of the encoding is done in hardware by the device so you don’t need anything too powerful to do the capture. The file once captured seems to require a video codec that isn’t there by default on Windows. Kodi had no issue playing it on a variety of platforms. DVD players also had no issues with it. At the end of the day the output is adequate and well worth the time to preserve important videos. The capture adapter was cheap, $20 so well worth it. Time wise it is very time consuming. 1hr takes 1hr (thanks Captain Obvious).

January 30, 2017 Posted by | Mutlimedia, Other reviews, Uncategorized, Video Encoding | 2 Comments