scanner - police / fire etc etc

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RX Coupe
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Post by RX Coupe » Mon May 18, 2009 6:44 pm

SA cops went to digital encrypted communicatios a few years back. You cannot buy a scanner to listen in on them.

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spike
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Post by spike » Fri Sep 18, 2009 7:39 pm

RX Coupe wrote:SA cops went to digital encrypted communicatios a few years back. You cannot buy a scanner to listen in on them.

Cheers,
im not toosure about that
the system uses an in built ummm thing
that switches the recieve and send signals

thus you can hear one of the singles but not the other

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niterida
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Post by niterida » Fri Sep 18, 2009 8:56 pm

Fedaral Poolice use encrypted digital and do not use mobile phones.
I'm not sure any of the police force uses mobile phones as they are not secure, nor are they recorded through their central control room, which is where all communications go so that they can be tracked.

I guess all Police forces will go encrypted digital if they haven't already.

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niterida
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Post by niterida » Fri Sep 18, 2009 8:59 pm

spike wrote:im not toosure about that
the system uses an in built ummm thing
that switches the recieve and send signals

thus you can hear one of the singles but not the other
If it is encrypted digital you won't be able to pick up anything without having a receiver that has the encryption code. Which you won't have, nor can you get one. Even if you acquired a genuine police radio they are able to remotely deactivate them individually.

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spike
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Post by spike » Fri Sep 18, 2009 9:41 pm

sorry should have made myseelf clearer
from what ive heard
its not encrypted, its 2 radios in one. reciveng channel to speaker, mic to sending channel

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niterida
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Post by niterida » Fri Sep 18, 2009 11:15 pm

spike wrote:sorry should have made myseelf clearer
from what ive heard
its not encrypted, its 2 radios in one. reciveng channel to speaker, mic to sending channel
I doubt that they have gone to digital without encryption - thats the whole idea of digital. I'm no expert but I also doubt they send on one channel and receive on another.

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phillatdarwin
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Post by phillatdarwin » Sat Sep 19, 2009 10:26 pm

up hear in darwin we are encryption

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Suba
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Post by Suba » Sun Sep 20, 2009 10:13 am

What you are refering to Spike is called duplexing the radio transmits on one frequency and recieves on another.
The channel that ihe radio sends on is recieved by a central radio with an antennea that is exteemly high so that is has a greater range than the moblie unit does and then retransmits the signal on the other recieve channel , thus giving a much wider range than it would if just one unit to another.

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phillatdarwin
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Post by phillatdarwin » Sun Sep 20, 2009 7:30 pm

yes that is right it is called a repeater

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alang
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Post by alang » Sun Jul 29, 2012 10:19 pm

welcome to the age of digital radio communications

also apps for smart phones and ipods

you can now get scanner apps for your smart phone for approx $2.99 au

turns your phone it to a world wide scanner

have been using 5-0 radio police scanner but their are a lot more to choose from and cover the windows apple and android software
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d_generate
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Post by d_generate » Mon Jul 30, 2012 3:08 am

And this is for digital or analogue?
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mattl200
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Post by mattl200 » Mon Nov 05, 2012 9:43 pm

when i was in new south early in the year
i got the cops as we hit peak hill heading north on 440 odd meg digital unencrypted
and still had them down on 70mhz as well
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