Australian NTRIP correction providers compared

Coverage on a map does not always mean that a farmer can obtain a login.

Australia has an extensive network of government and commercial GNSS reference stations. Access varies considerably: some government services provide free single-base data, some state networks only supply commercial users through resellers, and some commercial providers sell a finished correction service directly.

This comparison separates the underlying infrastructure from the service a customer can actually purchase or register to use. It was last checked in August 2026.

Government and state correction access

Area	Infrastructure	Can the public obtain access?	What is actually available?
Australia	Positioning Australia / AUSCORS	Yes. A free account is required for real-time streams.	Free individual-station RTCM 3 MSM7 streams and an SSR correction service. MSM7 is not suitable for many older agricultural receivers. It is infrastructure access without receiver setup, agricultural stream shaping or field support.
New South Wales	CORSnet-NSW	Not directly for ordinary commercial users. Direct subscriptions are limited to hosts, education and research. Other users are directed to authorised resellers.	CORSnet offers GDA94 and GDA2020 products. Some contributing station data can also be obtained through Positioning Australia.
Australian Capital Territory	ACT CORS participating in CORSnet-NSW	Through the NSW model. Commercial network access is reseller supplied; individual participating streams may be available through Positioning Australia.	The ACT Government identifies its permanent stations as part of CORSnet-NSW.
Victoria	Vicmap Position / GPSnet	Through Value Added Resellers.	Statewide NRTK, DGNSS and single-base services are advertised, with GDA compliance and reseller-delivered customer access.
Queensland	Queensland Government CORS	Yes, for participating individual stations through Positioning Australia.	Government documentation points users to the national portal for real-time streams and RINEX. A state-operated retail NRTK subscription is not currently advertised.
South Australia	South Australian government CORS	Yes for single-station RTK. Network RTK is sold by commercial resellers.	South Australia explicitly directs users to free AUSCORS DGPS/RTK streams, while listing AllDayRTK, SmartNet, VRS Now and other resellers for supported network products.
Western Australia	Government and Positioning Australia CORS	Yes where a station is published through Positioning Australia.	Individual-station real-time data and RINEX are available nationally. No separate WA Government retail NRTK service was identified in current public material.
Tasmania	No Tasmanian Government correction service	Not from the state government.	Land Tasmania says it does not provide a CORS service and directs users to commercial providers for GDA94 and GDA2020 real-time corrections.
Northern Territory	Government and Positioning Australia CORS	Yes where a station is published through Positioning Australia.	Individual-station access is available nationally. No separate NT Government retail NRTK service was identified in current public material.

What the free national service does not provide

Positioning Australia is valuable public infrastructure, but it is not a managed agricultural correction network. Its direct correction streams use MSM7, which many older agricultural receivers cannot use. The user selects an individual station, verifies the baseline and receiver compatibility, configures the equipment and deals with station changes or outages. Geoscience Australia's own assessment describes the service as free public access without support or system integration.

Small regional providers

Australia also has many smaller correction providers that resell or repackage a limited regional selection of AUSCORS stations. These services may be useful inside their supported area, but a local snippet of national infrastructure should not be mistaken for an independently operated national network. Customers should check which physical stations are actually available, what happens outside that area, and whether the supplied MSM format is compatible with their receiver.

Commercial service comparison

The following results combine published service information with observed correction-stream behaviour. A successful data connection proves transport and message content; it does not by itself prove that an agricultural receiver will obtain and hold an RTK fix.

Service	Customer access	Australian datum options observed	Agricultural considerations
VKLink	Direct public signup, with reseller and installer support where available.	GDA2020, GDA94, plus receiver and job-specific global or New Zealand frame options.	Automatic managed selection; physical and selected virtual sources; RTCM 2.3, reduced RTCM 3, MSM, CMR and CMR+ options; older agricultural receivers are actively supported.
CORSnet-NSW / AllDayRTK	CORSnet commercial access is reseller-only. AllDayRTK is a commercial value-added service that processes CORSnet and other station data.	GDA94 and GDA2020 are advertised.	AllDayRTK advertises nearest-base and network products in RTCM, MSM and CMR-family formats. Its NSW source table contains many stations matching CORSnet station codes and coordinates.
Point One Polaris	Commercial signup.	GDA2020 on Australian LOCAL mounts; current-epoch ITRF2014 on AUTO.	Modern multi-constellation MSM4. The captured service did not advertise CMR, CMR+, RTCM 2.3 or GDA94. Some tested physical-base baselines exceeded 80 km.
RTKdata / GEODNET	Commercial signup.	Australian AUTO behaved consistently with GDA2020; WGS84, ITRF2020 and ITRF2014 mounts were offered.	Nearest physical-base RTCM MSM service. It continued serving sources at weak baselines, including about 82 km and 273 km, so a connection does not necessarily mean usable RTK coverage.
SpatiX	Commercial trial and account access.	No Australian static datum was offered. Captured ports were advertised as ITRF2008, WGS84 and CGCS2000.	Observed QXWZ-generated MSM4 VRS data worked at two tested locations but returned no data at a tested Northern Territory point. At one location, the generated reference was approximately 1.14 km from the submitted rover position.

Choosing a correction service

Before paying for any service, ask which datum and epoch it supplies, whether its map represents usable RTK geometry or merely a connected station, which correction formats are available, and who will help when the receiver connects but does not fix.