Ontario Agriculture

The network for agriculture in Ontario, Canada

GPS Corrections and Their General Uses

After many years of precision agricultural use, many questions still exist of what is the correct correction for each operation.  I have listed the corrections available and a brief description of their uses.

Wide Area Augmentation Signal (WAAS) –

Accuracy: < 6-8”

Initialization/Convergence: Standard*

This free service provides performance suitable for agriculture applications in which accuracy and repeatability are not of the highest concern. It's most popular for broadacre crop spraying and tillage applications.

Omnistar XP-

Accuracy: 3-5" (8-12 cm)

Initialization/Convergence: Standard*

An OmniSTAR® service for high-performance broadacre spraying and land-tillage applications in which the vehicle will be operating in areas with open views of the sky at all times. OmniSTAR XP requires a convergence period at startup.  Omnistar XP is most popular for boom shutoff systems on sprayers and tillage applications.

Omnistar HP-

Accuracy: 2-4" (5-10 cm)

Initialization/Convergence: Standard*

An OmniSTAR® service suitable for high-performance broadacre seeding, spraying, and harvesting applications in which the vehicle will be operating in areas with open views of the sky at all times. OmniSTAR HP requires a convergence period at startup.  Omnistar HP is popular for broadacre planting, spraying and harvest solutions.

Trimble’s RTX-

Accuracy: 1.5" (3.8 cm)

Initialization/Convergence: Standard*

The new Trimble® CenterPoint™ RTX™ Correction Service delivers GNSS enabled, repeatable 1.5" (3.8 cm) corrections via satellite or cellular network directly to your receiver anywhere in the world. CenterPoint RTX works with the built-in GNSS receiver in your existing Trimble FmX® integrated display, CFX-750™ display, or AG-372 GNSS receiver.  Trimble’s RTX is becoming increasingly popular with cash crop planting using row controls, side dressing, no-till operations, small veggie crops where size does not dictate RTK investments.

RTK Base or Cellular-

Accuracy: < 1" (2.5 cm)

Initialization/Convergence: < 1 minute

CenterPoint RTK is well suited for row-crop planting, strip tilling, land leveling and other water management applications in which the best horizontal and vertical accuracy is required.  Repeatable accuracy is available anywhere, with cellular/base station systems.  Advancements in base station technologies now allow for no line of sight restrictions, and distances up to 20 Miles.

Agricultural GPS systems are no longer about straight lines, it is about intregration into your operation, your future plans and increasing profitability.  Data acquisition, yield mapping and variable rate application are all becoming main stream to today’s farmers.  Without properly installation, calibrated and training you will not be able to maximize your investment.  Ensure you make the right choices, your yields will thank you.

-------------------------------------------------------------------------------------

Paul Smith is the owner of Northern Equipment Solutions and based in Central Ontario, Canada. Providing Quality Potato Equipment, Precision Agriculture and Other Advanced Equipment, Northern Equipment Solutions ensures that your profits and yields are maximized. www.northernequipment.ca or sales@northernequipment.ca

Views: 455

Comment

You need to be a member of Ontario Agriculture to add comments!

Join Ontario Agriculture

Comment by Iain Robson on January 2, 2013 at 11:55pm

Awesome, thanks very much Paul.

I will look into it. For a small initial investment, it could improve yields, which would be huge.

Also, the new website looks great.

Comment by Paul Smith on January 2, 2013 at 5:52pm

Generally WAAS is a good starting point for any precision purchase, it can cover some of your less accurate requirements on the farm including some planting, sprayering, manure application and fertilizer spreading all areas where accuracy will have very positive returns in quality and reduced costs of inputs

Comment by Iain Robson on January 2, 2013 at 2:40am

Great post Paul. 

Which one would you suggest for a starter gps?

Agriculture Headlines from Farms.com Canada East News - click on title for full story

Monsanto Wins Roundup Trial After Supreme Court Ruling

A Missouri jury has unanimously sided with Monsanto in the first Roundup trial since the U.S. Supreme Court's landmark Durnell decision

What is Struvite? Could it Help Farmers Stretch Phosphorus and Reduce Runoff

AAFC researchers found that blending struvite with conventional phosphorus fertilizer delivered promising results in Eastern Canada and reduced phosphorus losses under Prairie conditions.

Food Affordability and Accessibility Among the Top Priorities of Canadian Consumers

The Executive Director of Canadian Food Focus says in the face of rising food costs, Canadians are increasingly seeking information on how to stretch their food budgets. Over the past five years the cost of food in Canada has risen by an estimated 30 percent. Dorothy Long, the Executive Director of Canadian Food Focus, says we all eat several times a day and food affordability is one of the most immediate concerns facing Canadians right now. Quote-Dorothy Long-CanadianFoodFocus.org: High food prices and higher prices in general are really putting a lot of pressure on household budgets. Specifically with food, it can be harder to consistently choose foods that they want to serve, especially fresh produce, protein foods and other nutrient-dense foods that may seem more expensive at the checkout. The impact isn't the same for everyone but many households are making tougher decisions, buying fewer items, changing brands, reducing the variety or maybe even relying more heavily on less

Toronto-Area Corporation Convicted of Operating a Meat Plant Without a Licence

On January 22, 2026, the Ontario Ministry of Agriculture, Food and Agribusiness (OMAFA) learned that 1000498884 Ontario Inc., operating as Taotie Dry Aging, was producing and selling a ready-to-eat dehydrated meat product marketed as “dry-aged meat chips.” An OMAFA Compliance and Advisory Officer inspected the premises and confirmed the presence of 13.37 kilograms of dehydrated meat products packaged in 308 units. On the day of inspection, the company voluntarily removed the product listing from its website and disposed of the product. Under provincial regulations, dehydrating meat products for sale or distribution is a regulated activity requiring a meat plant licence, unless an exemption applies. The matter was referred to OMAFA’s Compliance Enforcement and Intelligence Unit for investigation and charges were laid.

Recycling Council of Alberta recognizes Barry Friesen with Circular Champion Recognition Award

The Recycling Council of Alberta (RCA) today announced it is honouring recently retired Cleanfarms Executive Director Barry Friesen with its prestigious Rs of Excellence Circular Champion Recognition Award. This award reflects Friesen’s career-long commitment to building a more sustainable, circular future in Canadian agriculture. Friesen and other award recipients will be recognized at the RCA Annual General Meeting, held online from 10:30 a.m. to noon on November 6, 2026. Says Friesen: “I’m very proud to be part of this transformative industry, and to receive this honour from the RCA: one of the great champions of circular economy in Canada, playing a pivotal role in job creation while helping to keep our environment clean.” “It’s fitting this announcement coincides with Waste Reduction Week,” says Cleanfarms Executive Director Shane Hedderson. “During Barry’s tenure, Alberta’s small container program—the first in Canada—grew significantly along with other programs across the prov

© 2026   Created by Darren Marsland.   Powered by

Badges  |  Report an Issue  |  Terms of Service