NSW P25 GRN - Site Listing (current)

[Bigfella237]

As far as the freqs at the Top Ryde site being linked to site 001-005 at Belrose, these are the two sets of frequencies fresh off the ACMA pages for each site (sorry it's a bit messy, I can't seem to find a "table" option):

- Belrose - Ryde
413.1750 413.1750
415.6750 415.6750
415.9250 415.9250
416.1750 416.1750
416.4250 416.4250
416.6750 416.6750
416.9250 416.9250
417.1750 417.1750
417.4250 417.4250
417.6750 417.6750
417.9250 417.9250
418.6750* 418.6750*
419.1750* 419.1750*
419.4250* 419.4250*
419.6750* 419.6750*

All absolutely identical, that can't be a coincidence?

In fact, screw it, I'm making the call and moving the unidentified Top Ryde site to be simulcast with Belrose, if anyone can prove me wrong I'll happily move it again.

Andrew

[Scotty]

Was the old property that was demolished also called "Top Ryde City Retail"? Wouldn't it have been a different ACMA site number? And if that was the case, why would they add 4 new bases today to a site that didn't exist?

I'm convinced now more than ever that there IS a GRN site there, I know a number of members here have had a hunt around inside the complex and received nothing, but the special notation may explain why it can't be received in the public areas, the site was never there for general purpose users, although that may have changed with the latest addition of extra bases?

Andrew

The old property was ‘Top Ryde Shopping Centre’ or similar. It was far smaller than the current centre. There has definitely been a site name change, but maybe it is the same site number? Probably unlikely however. Would have to get access to the records from circa-2005 to confirm what the previous site number/name were.

Bear in mind the GRN frequencies there have all been registered to that centre since 1993 (and 1998), and not updated or changed since. Most other sites have had additional frequencies added (or changed) since that time. This site hasn’t suggests it has been somewhat ‘dormant’. Having said that, those new channels were added a couple of days ago.

I’ve been there twice myself to try and pick up this site over the years, unfortunately without success. Walked all through the levels and car parks, but got nothing. Although this was with a 396XT, which can have difficulty receiving BDA sites (I was using CC scan, which I do pick BDA sites on however).

Being a (now) 15 channel site it seems far too large to be for one or two users only. But being anything other doesn’t fit in with no transmissions ever being received there.

Edit: a found there is that historic search function on the ACMA site. A search suggests the current Top Ryde site (9010154) first came online in August 2009. This suggests there must have been another site the GRN frequencies were originally linked to, as they were first registered in the 1990's.

[matthewn1983]

Site 1-112 with a CC of 422.5000 (taking a wild guess without being near it, the new M4 Tunnel system) - Peered to Site 1-71, 1-72

[Bigfella237]

422.5000 only appears five times on the entire list, it's a voice channel at the Opera House, and a possible CC on those four M4 Tunnel sites.

But do you think they could get them operational that quick? It's only been a week or so since they were licenced?

EDIT: Those peers seem really strange too, why would the M4 be peered with 001-072 Royal North Shore Hospital at St Leonards?

Andrew

[Bigfella237]

~ Being a (now) 15 channel site it seems far too large to be for one or two users only. But being anything other doesn’t fit in with no transmissions ever being received there ~

Without knowing the actually reason, it would depend on the user and the usage.

Say, for example, a major utilities agency (water, power, etc.) had their network-wide dispatch centre in an office there, not an 'open to the public' office, just basically a radio room? They may need to potentially monitor a dozen different talkgroups simultaneously across a dozen different operators, which could explain why they might require so many bases?

Or there could be a covert government bunker below ground level to house some secret squirrel agency run by a man with an eye-patch! (Sorry, I must be watching too much from the MCU)

I don't know, it's all supposition and we may never learn the facts. But if I'm correct about it being simulcast with site 001-005 at Belrose (and I'm pretty confident it is), any radio traffic (voice or data) from Ryde would also be broadcast from Belrose, so some intense monitoring of that site may establish some pattern that could be used to determine the probable user?

Andrew

[Mike Alpha]

Unknown Site # - REVESBY (Ausgrid Substation, End of Tarro Avenue) - ACMA Site: 9015053
........
All frequencies on "Dipole-D, BA80-67, RF INDUSTRIES", 10K1F9W, 80W, 35 m Antenna Height (AGL)
Andrew

I had a look at that site today and there's no dipole array on the pole yet.

Mike

[Bigfella237]

Thanks Mike, logically you'd think the licences should all be in place before anything happens physically, which is why I was dubious about those M4 Tunnel sites coming online so fast.

Andrew

P.S. 35 metres AGL, that must be one hell of a pole!

[Mike Alpha]

Sure is.



Mike

[rustynswrail]

Thanks Mike, logically you'd think the licences should all be in place before anything happens physically, which is why I was dubious about those M4 Tunnel sites coming online so fast. Andrew

By way of information and from experience it can be anything up to 10 days from an assignment being made with the licence issued to when it appears on the ACMA database.

Also if I am not mistaken TELCO is its own frequency coordinator, so they would be aware of what frequencies will be used at a site long before filing the paperwork with ACMA. Equipment could be prepared and installed just waiting for the assignments to approved.

R

[Bigfella237]

4 new sites licenced again today, each with a mix of GRN and HSGA licenced frequencies:

Unknown Site # - NORTH SYDNEY (Northpoint 100 Miller Street) - ACMA Site: 4022
414.8250
415.0750
415.3250
418.5750*
418.8250*
419.0750*
419.3250*
419.5750*
419.8250*
420.0750
420.3250
420.5750
421.3250
421.5750
421.8250
422.0750
422.5750
423.0750
All frequencies on "Dipole-D, BA4040-67, RF INDUSTRIES", 10K1F9W, 80W, 135 m Antenna Height (AGL)

Unknown Site # - INGLEBURN (Telstra Site 29 Albert Street) - ACMA Site: 10232
418.6625*
418.9125*
419.1625*
419.4125*
419.6625*
419.9125*
420.1625
420.4125
420.6625
421.4125
421.6625
421.9125
All frequencies on "Dipole-D, BA4040-67, RF INDUSTRIES", 10K1F9W, 80W, 34 m Antenna Height (AGL)

Unknown Site # - PENDLE HILL (Telstra Site 211 Dunmore St) - ACMA Site: 202999
414.7250
414.9750
415.2250
418.7250*
418.9750*
419.2250*
419.4750*
419.7250*
419.9750*
All frequencies on "Dipole-D, BA80-67, RF INDUSTRIES", 10K1F9W, 80W, 20 m Antenna Height (AGL)

Unknown Site # - CARINGBAH (Corner Percival Road and Port Hacking Rd) - ACMA Site: 9017077
418.6625*
418.9125*
419.1625*
419.4125*
419.6625*
419.9125*
420.1625
420.4125
420.6625
421.4125
421.6625
421.9125
All frequencies on "Dipole-D, BA4040-67, RF INDUSTRIES", 10K1F9W, 80W, 22.5 m Antenna Height (AGL)

* Frequencies with an asterisk are licenced to the HSGA Client ID
Frequencies in RED are found on the CC List

All added to the NSWGRN Map and to the Unidentified Sites list here on the forum

Andrew