ACER has been developing scholarship tests for schools for more than forty years. These annually produced secure tests rigorously determine academic performance at the top end of achievement. Schools are supplied the test materials for administration, while ACER then conducts the marking analysis and reporting.
Full List of Participating Schools
http://www.acer.edu.au/tests/scholarships-schools.html
Wednesday, March 24, 2010
Saturday, March 20, 2010
Jedox Provides an Open-Source, In-Memory BI Solution
When you hear the term “business intelligence” (BI), what comes to mind? For most people, the term conjures up images of reporting and analysis solutions. Jedox’s Palo Server, an in-memory OLAP data server
(MOLAP) that provides open-source BI functionality, takes BI one step further. “When talking business intelligence, we don’t only mean reporting and analysis. We are also talking about planning, real-time consolidation, and top-modeling capabilities,” says Kristian Raue, the founder and CEO of Jedox.
http://www.sqlmag.com/article/business-intelligence/jedox-provides-an-open-source-in-memory-bi-solution.aspx
http://www.jedox.com/en/home/overview.html
Open source DIY hardware keylogger
KeeLog has decided to release an early version of it's hardware keylogger family to the public domain, including full firmware & software source code, keylogger hardware electrical schematics, and documentation. This PS/2 key logger is a 100% operational and tested device, assembled and used by hundreds of people around the world. Operation of this hardware key logger is similar to the KeyDemon PS/2. We provide the application KeyGrab for retrieve and analysis of recorded keystroke data. However, please note that this DIY hardware keylogger project is provided as is, with all faults, and with no warranty whatsoever.
http://www.keelog.com/diy.html
Friday, March 19, 2010
Memory Analyzer (MAT)
I came across this interesting software, open source code.
Memory Analyzer (MAT)
The Eclipse Memory Analyzer is a fast and feature-rich Java heap analyzer that helps you find memory leaks and reduce memory consumption.
Use the Memory Analyzer to analyze productive heap dumps with hundreds of millions of objects, quickly calculate the retained sizes of objects, see who is preventing the Garbage Collector from collecting objects, run a report to automatically extract leak suspects.
http://www.eclipse.org/mat/
People comments on Walkie Talkie
Good comments to hear from people :
Someone said :
Another person said :
Read more? Go to http://forums.whirlpool.net.au/ and search "Walkie Talkie"
Or click http://forums.whirlpool.net.au/forum/?action=threads_search&f=83&q=walkie+talkie
Example of the above original comments could be found below :
http://forums.whirlpool.net.au/forum-replies-archive.cfm/1223144.html
Someone said :
I recently purchased a 5 watt GME TX6100 brand new, $300, and two x 2 watt GME TX670 2nd hand for $130. All came with speaker/mic which means you can have the radio in your pocket and speaker/mic attached to your collar etc. The 6100 has a removeable antenna so you can, I think, use a higher gain external antenna mounted on your car for better range.
Both are nice and tidy little units, the TX670 take AA battery's, which is nice. The 6100 battery is about $100 to replace, which is not nice.
Both have CTCSS which has 38 different settings to block out other transmissions though there is no privacy, everyone on the channel can hear you, and you'll hear them if they find which CTCSS setting your using. Still, means the kids are a little less likely to hear the filthy language often used by immature so n 'so's with no life etc etc that "cruise the airways'. I don't think you'll get "proper scrambling".
Go ahead and use repeater stations but I don't think it'll work properly if you have CTCSS enabled. Just don't transmit on 31-38 'cause that feeds back through to 1-8 via the repeater.
I got about 1.5-2km range in suburbia between 6100-670 & 670-670. Haven't gone bush or highway with them yet. Oricom PMR 3000 are 1 watt and are duplex capable so you can use with repeaters but not sure you'll find a lot of camping spots within range of a repeater.
When I was first looking at suitable options, there was a Motorla 2pack of 2w units for ~$175 on ebay. A 2pack of TX670 is only another $20 or so though you might not get speaker/mic or headset option but you ARE buying Australian :) Having said that, if I get another one it'll probably be a 5w chinese job for ~$100 off ebay.
Another person said :
Scramblers are not commonly available built into a radio and they really are a waste of time. If you can buy them, so can everybody else.
Why you'd want such security for camping is just beyond me ?
Oh shhh ! Jihad training. hehehe.
My local scout group has a few of the cheapy 2W UHF handhelds.
They always take them on camps these days and some kids bring their own. I set them up with CTCSS on specific channels so that they would not hear any CB morons if they were using them in certain situations.
CTCSS mutes the audio so that the radio will not open the squelch unless the transmitting station has that CTCSS tone enabled.
It doesn't stop others listening in. In remote locations there really is no need for tone squelch (ctcss) and in emergency situations it can cause problems. ctcss should never be used on ch5/35.
Repeaters are available, there is no reason why you should not use them. They can be very useful. The issue with them is that in the city areas repeaters are a magnet for some of the biggest morons the human race has to offer. Swearing, jamming, abuse and stupidity are common. It's just easier to avoid them, because low power handhelds will not be heard anyway. The repeater trolls will just jam you.
Out in the country it is a very different story. The local council is often provides the repeaters and they are like a town PA system.
You can get onto them and put out a call for information, even trivial information like "where's a good place to buy a sandwich in town?".
If a local is listening, they may help you out. Though sometimes you may not get any response at all. Some big towns like Dubbo or Wagga Wagga occasionally have some morons get on the local repeater.
The right etiquette... hehe, in the cities you should run as much power as possible, talk over everybody else and insist that everybody else is an idiot while proclaiming how huge your penis is.
If you don't have a penis, then this should not stop you making the claim. :)
Ok, power levels. 5 watts is the legal limit for UHF CB. But... its not uncommon for some people to use a little or a lot more. It isn't required and 5 watts is suitable for all occasions.
1 watt handhelds tend to be rather sad, they will work well over short distances, though line of sight from hill top to hill top you can expect them to work a lot further. The advantage is they're cheap and light and don't use much power, so their battery power tends to last a while.
2 watt radios are a little better, but for the money it's not much more for a good 5 watt radio.
For UHF handhelds the top shelf radios like the Icom IC-41 or IC-40s sell for $400 full retail price.
A cheap UHF ham radio 5 watts sells for $99 full retail, and they can be programed to do UHF CB. So you can factor in the price you should pay for a 5W UHF CB.
The issue with the ham radio units is that they aren't as simple to use as a purpose CB. They have a lot more functions, but if programed up well, they can be used almost like a CB.
The issue comes if the operator does something stupid and doesn't know how to put his radio back on the correct channel etc.
The antennas that are built into cheap CBs are crap. If the antenna detaches, then you can put your own high quality or external antennas on the radio to vasty improve their performance.
All ham radio handhelds do this. The operators quickly replace the "rubber attenuator" with a good quality antenna like a diamond brand or they make their own antennas.
There a lot of varibles when it comes to distance. Out of the box, the distances you have quoted are about right depending on location. Using high gain antennas etc. the range can be greatly extended but at the cost of convenience.
Radio "line of sight" is not the same as optical line of sight.
Shop around, you'll find something suitable for your needs. If you can find a good communications shop that sells ham radios, they may give you more experienced answers to the various models available.
Read more? Go to http://forums.whirlpool.net.au/ and search "Walkie Talkie"
Or click http://forums.whirlpool.net.au/forum/?action=threads_search&f=83&q=walkie+talkie
Example of the above original comments could be found below :
http://forums.whirlpool.net.au/forum-replies-archive.cfm/1223144.html
Walkie Talkie FAQ
Usually what is the range these walkie-talkie radios can cover? How the outside obstacles create problem in the network?
The range is not fixed. Different manufacturer offers different transmitting ranges. It can vary according to the features and quality of the walkie-talkie radio. GMRS enabled radios usually offer longer range than the other walkie-talkie radios. These ranges are not static. It will drastically reduce whenever there are some obstacles like buildings or glass made things or even woods. It is said that these radios work well in especially mountain-draped area. You can never say the actually range without going to the place where you want the transmission to happen. Never get trapped in the false promises made by the manufacturer. Take your time to understand the feature and after that, purchase what you want.
How do these walkie-talkie radios work? I am planning to buy a new one, before that, I want to clear the conception so that I can get the best deal. Is there any difference between mobile phone and walkie-talkie radios? Alternatively, are both of them nearly same?
Many people have the same queries like you. Well, yes mobile phones and radios are different from each other. If you take two or multiple radios and set their frequency to same network then you can easily communicate between them. This is one inexpensive method of communication, but pretty much effective in limited area. There is a transmit button on the walkie-talkies. You can communicate by pressing the transmit button when you want to communicate with them. The best thing about walkie-talkie radio is - you need not pay any rental or charges after purchasing them. You can communicate in free of cost anytime within the range. There is no outside network; they work on their own signal. Whenever there are some problems in the network, noise and distractions starts. Another thing you must remember, in case of walkie-talkie radios both cannot talk at a time. You need to talk and listen once by one.
In a walkie-talkie radio, how many channels are there?
People seem to think that in different bands they can get different variety of channels. This idea is not true. All the products are PMR446 product. That means they must have got the same qualities in them. These qualities are not the features, but these are the channels. All the P M R446 radios have eight channels. In addition, all these walkie-talkie radios have 38 modules or popularly known as CTCSS 38 codes in them. Many people think these are sub channels, which is not correct. They actually screen out various radio messages when not all the radios are tuned in to same frequency. If you think there are 38x4= 304 channels then, that is wrong. The truth is there are 104 possible combination you can have in these walkie-talkie radios.
What is known as CTCSS?
Continuous Tone coding system is known as CTCSS. Many people know it as different name too. This is a subtle-audible tone, which is transmitted by the radio with the usual audible voice. If the voice does not contain the sub-tone, the receiver will not receive it at all. If other users of same frequency interrupt the transmission, the receiver automatically reject it because of the absence of the sub tone. If there is a group of users in same frequency, sub tone can actually stop them from intruding and hearing each other’s message. If you know it, you can utilize it for your own benefit.
The range is not fixed. Different manufacturer offers different transmitting ranges. It can vary according to the features and quality of the walkie-talkie radio. GMRS enabled radios usually offer longer range than the other walkie-talkie radios. These ranges are not static. It will drastically reduce whenever there are some obstacles like buildings or glass made things or even woods. It is said that these radios work well in especially mountain-draped area. You can never say the actually range without going to the place where you want the transmission to happen. Never get trapped in the false promises made by the manufacturer. Take your time to understand the feature and after that, purchase what you want.
How do these walkie-talkie radios work? I am planning to buy a new one, before that, I want to clear the conception so that I can get the best deal. Is there any difference between mobile phone and walkie-talkie radios? Alternatively, are both of them nearly same?
Many people have the same queries like you. Well, yes mobile phones and radios are different from each other. If you take two or multiple radios and set their frequency to same network then you can easily communicate between them. This is one inexpensive method of communication, but pretty much effective in limited area. There is a transmit button on the walkie-talkies. You can communicate by pressing the transmit button when you want to communicate with them. The best thing about walkie-talkie radio is - you need not pay any rental or charges after purchasing them. You can communicate in free of cost anytime within the range. There is no outside network; they work on their own signal. Whenever there are some problems in the network, noise and distractions starts. Another thing you must remember, in case of walkie-talkie radios both cannot talk at a time. You need to talk and listen once by one.
In a walkie-talkie radio, how many channels are there?
People seem to think that in different bands they can get different variety of channels. This idea is not true. All the products are PMR446 product. That means they must have got the same qualities in them. These qualities are not the features, but these are the channels. All the P M R446 radios have eight channels. In addition, all these walkie-talkie radios have 38 modules or popularly known as CTCSS 38 codes in them. Many people think these are sub channels, which is not correct. They actually screen out various radio messages when not all the radios are tuned in to same frequency. If you think there are 38x4= 304 channels then, that is wrong. The truth is there are 104 possible combination you can have in these walkie-talkie radios.
What is known as CTCSS?
Continuous Tone coding system is known as CTCSS. Many people know it as different name too. This is a subtle-audible tone, which is transmitted by the radio with the usual audible voice. If the voice does not contain the sub-tone, the receiver will not receive it at all. If other users of same frequency interrupt the transmission, the receiver automatically reject it because of the absence of the sub tone. If there is a group of users in same frequency, sub tone can actually stop them from intruding and hearing each other’s message. If you know it, you can utilize it for your own benefit.
Walkie-talkie radios- The real range
Whenever people want to buy things, they usually get confused about the product quality and features. Different manufacturer claim different things and all of them sound great. False promises are everywhere, and people often end up buying a product that does not give them the kind of service they expected from it. Some says that you can get clear network up to 3km where in reality you actually get a maximum 2km of clear network. These are frustrating and that is why one should research thoroughly before buying any walkie-talkie radios.
Walkie-talkie radios
The controls are always user friendly in a walkie-talkie. Your thumb always rules in a walkie-talkie. Yes, the controls are easy and they are mainly controlled by your thumb. One thing you must check before buying is the General Mobile Radio Service. This is also known as GMRS and your radio should be one GMRS. This service allows your radio to utilise maximum power (4 watt) for a walkie-talkie range. Most of the other electronic communication gadgets like cell phones have somewhere nearly 400-500 milliwatts, so you can understand the power consumption difference in both of them. When you are using one GMRS radio, it automatically cuts 1-2 watt on the modules and channels.
Walkie-talkie radios with GMRS can even claim better service up to 25 km, however, for many other radios this is simply out of reach. You may need to pay a little bit more for these GMRS radios, but the radios are definitely worth the extra price. The benefits of those extra watts can provide you better facility even if there are some external hindrances. The usual low watt radios started creating problems whenever there is more traffic, or building or some obstruction of metal. Here you will not face such problems. The extra watt is used so that you can always get the best of the services. Radios are simple and fun to use. The best part is that you need not pay much extra to enjoy these facilities. Do not mess with the settings and try to keep it as simple as possible and follow the instructions given in the manual. You will surely find a whole new world at your fingertip.
Walkie-talkie radios
The controls are always user friendly in a walkie-talkie. Your thumb always rules in a walkie-talkie. Yes, the controls are easy and they are mainly controlled by your thumb. One thing you must check before buying is the General Mobile Radio Service. This is also known as GMRS and your radio should be one GMRS. This service allows your radio to utilise maximum power (4 watt) for a walkie-talkie range. Most of the other electronic communication gadgets like cell phones have somewhere nearly 400-500 milliwatts, so you can understand the power consumption difference in both of them. When you are using one GMRS radio, it automatically cuts 1-2 watt on the modules and channels.
Walkie-talkie radios with GMRS can even claim better service up to 25 km, however, for many other radios this is simply out of reach. You may need to pay a little bit more for these GMRS radios, but the radios are definitely worth the extra price. The benefits of those extra watts can provide you better facility even if there are some external hindrances. The usual low watt radios started creating problems whenever there is more traffic, or building or some obstruction of metal. Here you will not face such problems. The extra watt is used so that you can always get the best of the services. Radios are simple and fun to use. The best part is that you need not pay much extra to enjoy these facilities. Do not mess with the settings and try to keep it as simple as possible and follow the instructions given in the manual. You will surely find a whole new world at your fingertip.
UHF Channel Information
UHF Channel Information
Not all Channels on CB are for everyday use, some have very specific roles and using them may interfere with other legitimate users of the band. Following is a list of UHF CB Channels and their uses.
http://www.uhfcb.com.au/UHF--Channel-Infomation.php
Interesting to take note :
The Australian Government has legislated that channels 5 & 35 on the UHF CB Band are reserved for emergency use only
As at January 2007 the maximum penalties for the misuse of the legally allocated CB emergency channels are:
* For general misuse - if an individual 2 years imprisonment, otherwise $165,000 (a $220 on-the-spot fine can be issued in minor cases); or
* For interference to an actual call - if an individual 5 years imprisonment, otherwise $550,000 (no on-the-spot fine can be issued, must go to court)
Not all Channels on CB are for everyday use, some have very specific roles and using them may interfere with other legitimate users of the band. Following is a list of UHF CB Channels and their uses.
http://www.uhfcb.com.au/UHF--Channel-Infomation.php
Interesting to take note :
The Australian Government has legislated that channels 5 & 35 on the UHF CB Band are reserved for emergency use only
As at January 2007 the maximum penalties for the misuse of the legally allocated CB emergency channels are:
* For general misuse - if an individual 2 years imprisonment, otherwise $165,000 (a $220 on-the-spot fine can be issued in minor cases); or
* For interference to an actual call - if an individual 5 years imprisonment, otherwise $550,000 (no on-the-spot fine can be issued, must go to court)
Thursday, March 18, 2010
LEGO guns that look like real guns!
I come across a very interesting site. They sell LEGO guns that look like real guns!
BrickGun, designers and builders of the world's most realistic custom Lego weapon models. They specialize in creating the coolest, most realistic kits that can be built using genuine Lego parts. Each model is life-sized, with accurate dimensions and details. They feature functioning mechanics such as triggers, hammers, slides, safeties and magazines so they not only look like the real thing, they work like the real thing as well.
http://www.brickgun.com
BrickGun, designers and builders of the world's most realistic custom Lego weapon models. They specialize in creating the coolest, most realistic kits that can be built using genuine Lego parts. Each model is life-sized, with accurate dimensions and details. They feature functioning mechanics such as triggers, hammers, slides, safeties and magazines so they not only look like the real thing, they work like the real thing as well.
http://www.brickgun.com
What is Walkie Talkie?
A walkie-talkie, or handie talkie, (more formally known as a handheld transceiver) is a hand-held, portable, two-way radio transceiver.
More info in Wiki :
Where to buy one in Australia?
http://www.ryda.com.au
http://www.shopwiki.com.au
http://www.prestigecom.net.au
http://www.batteryshack.com.au
More info in Wiki :
Where to buy one in Australia?
http://www.ryda.com.au
http://www.shopwiki.com.au
http://www.prestigecom.net.au
http://www.batteryshack.com.au
About Everything Catch
Everything Catch started on 18 March 2010. Basic idea is to provide everything that catches this blog creator.
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