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Re: Public Transport Frequencies and Links

Posted: Mon Jun 29, 2009 9:26 am
by yorky
Anyone know if the Path Transit bus's have changed radio's or channels recently? On the drive into work this morning there wasn't a word spoken on 490.xxx channels :?

Re: Public Transport Frequencies and Links

Posted: Wed Jul 01, 2009 7:38 pm
by Fitzyyy
They have got a new radio upgrade their new frequencies are:

490.450 Morley depot

490.900 Karrrinup and Joondalup depot

Re: Public Transport Frequencies and Links

Posted: Wed Jul 01, 2009 7:51 pm
by yorky
MUCH appreciated.

Re: Public Transport Frequencies and Links

Posted: Tue Jul 28, 2009 7:37 pm
by yorky
Wilsons Transperth security is 489.400 Mhz thanks to Fitzyyy.

Re: Public Transport Frequencies and Links

Posted: Fri Aug 07, 2009 6:44 pm
by bus_scanner
Hello everyone,

From last night (Thursday 6th, August) at around 6:30pm I have not been able to recieve any PATH Transit channels, (490.900-Karrinyup/Joondalup or 490.450-Morley). I listen to these two channels everyday and would greatly appreciate help on this, such as if the frequencies have changed etc.

Kind regards,
Ross. :)

Re: Public Transport Frequencies and Links

Posted: Fri Aug 07, 2009 6:45 pm
by yorky
I listened to them on the way to and from the office today, I turned it off only 60 minutes ago so it sounds like a problem on your end :(

Re: Public Transport Frequencies and Links

Posted: Fri Aug 07, 2009 7:26 pm
by bus_scanner
Hello yorky,

I have just re-set my scanner and I am now recieving both Karrinyup and Morley, so I don't know what the problem was. Thankyou very much for your reply.

Kind regards,
Ross. :D

Re: Public Transport Frequencies and Links

Posted: Sun Aug 16, 2009 8:49 am
by richard omeara
I was literning to trans perth security last night and they changed to ch 26 simplex.Could some one please explaine this fore me.THANKS

Re: Public Transport Frequencies and Links

Posted: Sun Aug 16, 2009 6:38 pm
by Always RX
If I understand your question I think you are asking what does simplex mean? Well in my basic understanding of it is that the guys can use thier radios two ways with one of those ways (or modes) being simplex. This means that each radio is only transmitting and receiving with the radios around it, within the range of the radio itself. The other way is to transmit through what is called a repeater which is basically a transceiver that amplifies your transmission, increases the signal strength and then rebroadcasts it so it can be received or "heard" further away. Switching from repeater mode to simplex mode simply means that the guys working close by to each other can communicate without everybody else on the repeater network being able to, or having to, listen in on the job.
I hope I didnt make that too confusing. If I did try this ...lol http://en.wikipedia.org/wiki/Radio_repeater

Re: Public Transport Frequencies and Links

Posted: Sun Aug 16, 2009 8:07 pm
by richard omeara
Thanks always RX.Was listerning to trans perth sec and they said they were going ch 26 simplex.So i take it they where in close distance to each other.Thanks heaps.

Re: Public Transport Frequencies and Links

Posted: Wed Aug 26, 2009 1:40 am
by bawds25
When an officer boards a bus and his partner escorts behind in a tango vehicle they will sometimes change their radios to channel 26 (simplex) so they can talk without interruption and without having to worry about bad reception (they introduced this as many areas have extremely poor reception - midland, joondalup, freo, rocky etc.) Its also sometimes used when two nearby vehicles want to communicate without broadcasting over the main PTA channel.

Hope that answers your question :)

Re: Public Transport Frequencies and Links

Posted: Wed Aug 26, 2009 9:38 am
by yorky
Do you know the frequency for the simplex channel?

With Path Transit they also talk about a 'Channel 3' which I can only assume is a simplex as well as only two repeater channels are listed for them?

Re: Public Transport Frequencies and Links

Posted: Wed Aug 26, 2009 12:37 pm
by richard omeara
This is what i have for Trans Perth.
Security 489.400
Main 490.900
CH 2 490.6250
CH 3 490.9250
Hope this helps.

Re: Public Transport Frequencies and Links

Posted: Wed Aug 26, 2009 12:57 pm
by bawds25
Not sure what the simplex freq is but signal only goes about 1.5kms and is not used too often anyways

Re: Public Transport Frequencies and Links

Posted: Thu Oct 22, 2009 6:24 am
by gromit
yorky wrote:Do you know the frequency for the simplex channel?

With Path Transit they also talk about a 'Channel 3' which I can only assume is a simplex as well as only two repeater channels are listed for them?
Sorry for coming in late, but Ch 3 for Path is the Circle Route frequency (472.750 MHz).

HTH