Re: Yet more radios needed

["Robert Parnell" <rparnell@netspace.net.au>]

To answer the question that I was asked on what is being proposed:

All trains travelling in areas covered by MetroNet (basically, City Rail
electrified areas where City Rail services operate - i.e. not goods lines)
will require a MetroNet radio in the cab (either portable or fixed) for the
purpose of authorising of passing signals at STOP by a signaller, and for
use in emergency situations. There are plenty of issues related to this, but
not for discussion here at present.

--
Robert Parnell
Rail Access/Argus Telecommunications Technician, Electronics Enthusiast,
Lachlan Valley Railway Director,  NSW HO scale railway modeller
E-mail:<rparnell@netspace.net.au>
Robert Parnell <rparnell@netspace.net.au> wrote in message
8krf3v$2nb1$1@otis.netspace.net.au">news:8krf3v$2nb1$1@otis.netspace.net.au...
> I'm here! Haven't had much time to read this newsgroup because I have been
> doing so much overtime working on the said radio systems!
>
> I am rather reluctant to comment at the moment, especially since it is a
> very political issue at present. Both the CountyNet (old FreightRail) and
> MetroNet (old CityRail) have draw backs and advantages. Reading through
> these postings, the general operation of these systems has been identified
> by some people, although there are still some inaccuracies. Briefly, both
> systems use the same frequency band, have different protocols and channel
> spacings. CountryNet uses GPS to determine which channel to communicate
on,
> while MetroNet uses transponders located in the "4 foot". Some obvious
> problems can be worked out by most...
>
> (I will write an article about the MetroNet system when I get a few spare
> minutes and the politics settles).
>
> --
> Robert Parnell
> Rail Access/Argus Telecommunications Technician, Electronics Enthusiast,
> Lachlan Valley Railway Director,  NSW HO scale railway modeller
> E-mail:<rparnell@netspace.net.au>
> John MacCallum <johnmac@lisp.com.au> wrote in message
> 396E50EE.7D138767@lisp.com.au">news:396E50EE.7D138767@lisp.com.au...
> > Michael Kurkowski wrote:
> > >
> > > howshr@netlink.com.au (Ron Howship) wrote in
> > > <396DBB49.ECA9A0E8@netlink.com.au>:
> > >
> > > >Turn your fscking caps lock off!!!!!!!!!!
> > >
> > > Go on. Tell us what you really think.
> > >
> > > While youre at it, wash your mouth out with soap.
> > >
> > > Michael
> > >
> > > --
> > >      Email: michael {DOT} kurkowski {AT} gunzel {DOT} net
> > >           (Any mail sent to usenet.spam@gunzel.net
> > >        will be filed into the circular filing cabinet)
> > >     IT'S ALIVE! http://www.gunzel.net ICQ: 1459118 / T333.
> > >               Yahoo: VR_T333  Mobile: 0416-044-124
> > >
> > >                 Tolulene, you know what I mean.
> >
> > I don't see waht the problem is with having the caps lock on is!
> > I think he made a valid point.
> >
> > When Freightcorp Drivers at Lithgow first became aware of the intention
> > to install the Metro Net system Freightcorp was still FreightRail.
> > The significance of that is that there hadn't been a total divorce
> > between City Rail on Freightrail.
> >
> > The drivers at lithgow (City Rail and Freightrail that is to say)all
> > said the same thing. Why on earth have two distinct systems that can't
> > talk to each other? Actaully there are 5 systems in use but in practical
> > terms it comes back to 3.
> >
> > The reason why Freightrail at the time went for its own system
> > (Country Net) was because the GRN didn't extend to all areas covered
> > by rail and so Freightrail decided it needed its own system.
> >
> > For technical reasons when City Rail decided to install the Metro net
> > system they went for a trunking system not unlike the GRN.
> >
> > The mistake they made with Metro Net is that they didn't make provision
> > for plain old Simplex operation on 450.050 mhz ( the old Train Radio
> > Frequency). The Country Net does and so does the Aware system on
> > NR classes.
> >
> > I was lead to believe that there was going to be a upgrade to the
> > Metro Net radios on City Rail trains that will allow use on 450.050 Mhz
> > simplex.
> >
> > Robert Parnell where are you? You may be able to enlighten us as to
> > what is being proposed.
> >
> >
> >
> > --
> >
> > Pope
> >
> > Alias John MacCallum
>
>