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El Reg pits radioheads against each other in new compo

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Reg quiz Homes and offices are awash with electromagnetic radiation these days, right across the dial, but do you know what frequencies the gadgets on your desk - and in your home - are spewing out?

It's been a year or two since we tested your knowledge of radio. Last time we asked you to take a look at some street furniture and decide if it concealed a cellular telephone mast, and it seems that not many of you can. This time we've made it easier by putting a radio in every photograph, the question being on what frequency they operate.

The following 18 items all use radio to communicate: six are transmitters, four receivers and the rest do both. All of them are consumer items that you can buy in the high street, and every one of them is used daily. One requires a (£50-a-year) Ofcom licence, and they're all shown in situ except one - for reasons which will be obvious if you recognise what it is.

The question is the frequency on which they operate - which you can select from the options listed.

The winner will be drawn from the virtual hat in a few weeks, and receive the traditional El Reg Goodie Bag with whatever happens to be lying around the office next time it gets tidied.

This competition is now closed.


240MHz
1.2GHz
340THz
833MHz

12MHz
433MHz
913MHz
2GHz

34KHz
1MHz
418MHz
2.4GHz

130KHz
900MHz
833MHz
1.2GHz

240KHz
10MHz
418MHz
2.4GHz

14KHz
433MHz
12KHz
6GHz

49MHz
1.2MHz
1.9GHz
16THz

34KHz
10MHz
418MHz
2.4GHz

13.56MHz
123.2MHz
1.02GHz
1.22GHz

200MHz
400MHz
820MHz
1.9GHz

912MHz
1.8GHz
2.1GHz
5.8GHz

800MHz
5.8GHz
10.2GHz
12GHz

856MHz
933MHz
5.8GHz
6GHz

100-200MHz
600-800MHz
1-3GHz
4GHz

2.4GHz
14GHz
22GHz
1THz

868MHz
900MHz
1.8GHz
2.4GHz

433MHz
1.2GHz
1.4GHz
2.4GHz

50.7KHz
868MHz
2.4GHz
5.8GHz


Your Name
Your Email
[In case you win the Goodie bag - we won't spam you - promise.]

Secure remote control for conventional and virtual desktops

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