Re: Glenbrook - Vandalised Phone

[keithm@commslab.gov.au (Dave Malcolm)]

In article <%y%44.163$iZ6.8362@nsw.nnrp.telstra.net> "Switched On" <yaropolk@hotmail.com> writes:
>From: "Switched On" <yaropolk@hotmail.com>
>Subject: Re: Glenbrook - Vandalised Phone
>Date: Mon, 13 Dec 1999 15:39:28 +1000


>> Insecure in that anyone with a 450MHz transceiver can make transmissions.
>If a
>> signal box was allowed to authorise passing signals at stop over the 2-way
>radio,
>> then anyone could sit nearby and start authorising it.

>That's what encryption is for.

That's right. That's why the Freight Corp radio system can't be used to issue 
an instruction to pass a signal at stop, It isn't encrypted. It's the same 
system which has been used for a number of years.

Dave Malcolm

>S