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Date: Wed, 22 Nov 2000 17:28:44 +1000
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From: Adam <[EMAIL PROTECTED]>
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Subject: Re: [Re: nokia radar detector]
You can listen to any frequency you want apart from police and military
frequencies. This includes voice and radar. It is not legal to listen to
police voice on scanners. The radar frequencies are (from memory) 5.5GHz,
11GHz and 14GHz. The oscillators in Radios/CB's and other things are no
where near the frequencies of radar's so they don't pick them up.
At 08:10 AM 22/11/2000 +1100, you wrote:
>I once upon a time did a bit of ham radio, and one of the things I was
>told by the old guys was you could listen to any frequency u want, so long
>as u don't transmit without the according permit/licence (except CB of
>Course!!) so why is it legal to listen to cop voice frequencys (on
>scanners) but not radar carriers? -Anyone know what frequencys the radars
>work on?
>Also, car radios and CB radios have oscillators in them too, so when the
>cop accuses u for having a radar detector, tell him he must be picking up
>the PLL in the Radio! ;)
>
>>From: Adam <[EMAIL PROTECTED]>
>>Reply-To: [EMAIL PROTECTED]
>>To: [EMAIL PROTECTED]
>>Subject: Re: [Re: nokia radar detector]
>>Date: Tue, 21 Nov 2000 17:50:25 +1000
>>
>>They can pick up your radar detector about 10 metres away depending on its
>>power. So they know your have one when the signal stops after they pass
>>you. They leak out the same place the signal comes in. So you cannot
>>shield them and keep them working. They are transmitters and receivers of
>>about the same efficiency. The only ones that are stealth are ones which
>>contain multi stage mixers in them, ie shift the signal from 4GHz to 70MHz
>>then to DC, these are more expensive than the simple diode detectors
>>mentioned below. To make the simple diode ones stealth they reduce the
>>gain in the receiver circuit but this makes them less sensitive meaning you
>>have to be closer to the police to detect them.
