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- #Why is anita ward ring my bell so annoying how to
- #Why is anita ward ring my bell so annoying software
- #Why is anita ward ring my bell so annoying Pc
This not only sounds like data but it looks like it too. The RF Explorer to quickly find the signal, and then QUISK or HDSDR to fine tune.
#Why is anita ward ring my bell so annoying software
This can be in the form of software using the FunCube itself, such as HDSDR (Windows) or QUISK (Linux), or a standalone hardware device like the RF Explorer. This is essentially another type of RF receiver, that listens on a very wide band and shows you any spikes or other discrepancies, one of which will be the signal you're looking for. This is particularly important when trying to convert mysterious airy-fairy analogue signals back into nice reliable 0s and 1s, as any deviation can end up corrupting your data beyond all recognition.Īnother way is to use a spectrum analyser. If you're anywhere close you'll hear something when you activate the device, and you can then tune up or down until you've found the centre frequency and you're getting nice crisp clean signals. There are several ways of doing this, and the simplest is to make a rough guess and just take a listen.
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The first task is to determine exactly what frequency our signal is on. The bottom line is that I don't understand how radio works, and I don't particularly want to - all I want is to be able to capture whatever's being sent over it and convert into something I can deal with - i.e. It's not intuitively obvious that it should be that way, but the human brain is very good at recognising patterns, and the soundcard not only provides us with auditory data that our ears will immediately be able to latch onto, but also visual data in the form of an editable wave file. You can't see it and you can't hear it, so using a soundcard is actually a very good shortcut to helping understand this completely unknown source of data. Radio is, almost by definition, very mysterious. This was a fantastic bonus for me as I'm already comfortable with the idea of converting audio into data and have used the soundcard in my laptop for that purpose on many previous projects (e.g.
#Why is anita ward ring my bell so annoying Pc
It also presents itself to the PC as a pseudo sound card, so is very easy to interface to. This very cool device can receive on any frequency from 64MHz to 1.7GHz and fits in my laptop bag so is absolutely ideal.
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As it happens, a friend gave me a nice Christmas gift (thanks CJ!) of a FunCube dongle: However, as I travel a lot, I prefer something a little more portable, so I'm always on the lookout for smaller alternatives. The obvious answer is to use an SDR (Software Defined Radio), and from previous projects I have a USRP which fits the bill.
#Why is anita ward ring my bell so annoying how to
In this case the RF was mostly standard stuff like WiFi and Zigbee, but there was also something going on in the 400MHz band, so how to take a look at what was there? You name it, they'll send data over it insecurely. MagStripes, InfraRed, RFID, Bluetooth, Magic Moon Beams. Nobody can see what's going on, so we don't need to worry about it, right? Wrong. Now RF, like other 'invisible' transport mechanisms, always gets me interested because, in my experience, once data becomes invisible, something magical happens: they forget about security. It was a complex system that used just about every protocol under the sun, including RF. Speaking of hell, what the hell am I talking about?Ī little while ago I got involved in a project that needed some hardware security testing. And let's do it from the comfort and safety of my car, whilst driving around. What the hell - let's just all ring each-other's bells shall we? And dim your lights. Thanks, Anita Ward! (and apologies if it's now stuck in yours too! :)īut she's right: you can ring my bell. Dammit! Now that song is stuck in my head and will be going around and around for the next three days.