Trunking, Olympic radios and ATN 7

The Olympic radio system was a trunking system. They used Motorola XTS3000 Trunking radios. These radios, however, were tagged to be Samsung radios, as Motorola was not a games sponsor but Samsung was. They operated on 434MHz.
Thanks to Dave VK2GZ for that information.

Trunking means that the radios automatically change frequency periodically by means of another frequency telling them what channel to use. This is computer controlled. CLICK HERE FOR MORE INFORMATION ON TRUNKING SYSTEMS!

For further information:
THE ORIGINAL NSW EMERGENCY SERVICES PAGE - includes link to the Government Radio Net (click on the GRN link at this page.) Also see the Sydney Trunk Scanning page.

The latest radios I have seen that the stagecrew at Stadium Australia have been using are Motorola units. This was at the NRL double header in 2001. I did not take my scanner, so unfortunately cannot tell you the frequencies. However, here are the frequencies that were in use for the Olympic and Paralympic Opening (and, I assume, closing) Ceremonies. (I later found out that scanners were banned in the Olympic site, but hey, why didn't that Policeman who I spoke to kick me out?)

The output frequencies for the Ceremonies' stage crews were continuous carrier (no audio unless someone was speaking, but signal all the time). I found that because of this I could not scan them for activity. Never mind, the solution to that problem is to scan the input frequencies, but of course they are not as easy to find, because there is only a signal when someone is talking (as opposed to all the time). I have found some strange stuff on some of these frequencies recently (it was actually the 25th of Feb, 2001), which was mostly continuous data or continuous carrier.

Frequency	Notes
490.125
490.6625
491.575
492.375
496.775
495.975
495.675
486.375
490.775
492.750
493.575
493.675
493.900	Continuous carrier, even at home (Epping)
494.725
486.8125
492.550	I think this was an input frequency.
493.450
490.6625	On this one I found some service at Sydney Airport (Feb 2001) so try it and hear the airport!

Recently channel 7's show, "All Saints", were filming just across the road from us.Thanks to my trusty Dick Smith scanner book (very old), I programmed in the channelo 7 frequencies. I scanned these frequencies, and shortly found that they were using one. (see table below). There are other channel 7 frequencies, and All Saints crew may use a different channel every time, but below is the freq. they were using at my place.

Frequency	Notes
470.725	"All Saints" crew

For further information: THE ORIGINAL NSW EMERGENCY SERVICES PAGE - includes link to the Government Radio Net (click on the GRN link at this page.) Also see the Sydney Trunk Scanning page.

For further information:
THE ORIGINAL NSW EMERGENCY SERVICES PAGE - includes link to the Government Radio Net (click on the GRN link at this page.) Also see the Sydney Trunk Scanning page.