Re: Glenbrook - Vandalised Phone

["Rod" <comtrain@mpx.com.au>]

. Satellite communications require a "line of sight"
> to the satellite, however the Glenbrrok cuttings have a very high rock
wall
> on the North side and the satellites are on a fairly equatorial orbit so
> the "line of sight" is lost.
>
> Similarly cell-phones require a fairly direct signal and numerous
repeaters
> would be necessary to cover every "blind spot" in this location (let alone
> the tunnel).
>
 In tunnels and cuttings, radio communication is kept by stringing a line
through the dead spot, which both picks up the transmissions of the mobile
unit, and delivers the radio signal to the unit, connects in to the system
via phone lines.
Rod