Continuing on from the basics we learnt in the first few lectures, we moved on to some basic analogue circuits, including creating a Hi-pass and Low-Pass filter. These filters are both very simple, yet they provide crucial functionality in many everyday appliances. A good example of this is the Phone it has a 3KHz Hi-Pass Filter in it, creating the distinctive sound you hear. A Mid-Pass Filter is another extremely common one, particularly in broadcasting. Used mainly in TV tuners, to decipher one signal from the next. They are used for this purpose as they can be set to allow a very small frequency range through at a time, useful for splitting the hundreds of signals sent over FreeView.

TV Systems & Signals

TV Systems and Signals, was unfortunately canceled today due to unforeseen circumstances.