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

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?

RSS

Welcome to
Ontario Agriculture

Sign Up
or Sign In

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

Replenish Nutrients Announces Steven Glover as Special Advisor to the Board and Director Nominee

Replenish Nutrients Holding Corp. (CSE: ERTH) (OTC: VVIVF) ("Replenish" or the "Company"), a leader in regenerative agriculture solutions, is pleased to announce that Steven Glover, FCPA, FCA, will join the Company as a Special Advisor to the Board of Directors, effective April 7, 2026. Mr. Glover will be nominated for election to the Company's Board of Directors at its upcoming Annual General Meeting on June 19, 2026. Mr. Glover is an independent director nominee. Upon election, it is anticipated that he will serve as the Company's audit committee chair. Mr. Glover brings nearly five decades of experience in accounting, financial oversight, and public-company governance, with a career spanning senior executive roles, regulatory and professional leadership, and extensive board and audit committee service. Mr. Glover currently serves as Lead Director and Audit Committee Chair of Genesis Land Development Corp. (TSX: GDC), where he provides oversight of financial reporting, enterprise r

Government of Canada invests in low-carbon agrichemicals to advance sustainability in agriculture

Canada's agricultural sector is at the forefront of building a greener future and ensuring Canadians have access to sustainable, homegrown solutions. Supporting leading-edge technology is critical to reducing greenhouse gas (GHG) emissions and fortifying Canada's food systems for generations to come. Today, Wade Chang, Member of Parliament for Burnaby Central, on behalf of the Honourable Heath MacDonald, Minister of Agriculture and Agri-Food, announced an investment of up to $1,236,310 for Anodyne Chemistries Inc. through the AgriScience Program - Projects Component, under the Sustainable Canadian Agricultural Partnership. This investment will support Anodyne Chemistries in developing and demonstrating an innovative bio-electric process that converts carbon dioxide and water into high-quality, low-carbon formic acid and hydrogen peroxide, resulting in significant GHG reductions and reduced reliance on petrochemical feedstocks for Canada's agricultural sector. Formic acid and hydrogen

Canada's two major railways see slight improvement in grain deliveries in week 34: Ag Transport Coalition

The Ag Transport Coalition reports week 34 saw system performance improve notably, with CN and CPKC Rail combined, supplying 80% of hopper cars ordered. That's an improvement from the 65% performance seen in week 33, and the best performance seen since week 25 in mid-January. System performance remains below the 90% performance threshold for a tenth consecutive week, but returns to the 80% threshold for the first time in nine weeks. In supplying 85% of cars ordered by shippers in week 34, CN saw performance improve from the 79% order fulfillment performance seen in week 33. This marks the best performance seen from CN in the last five weeks, but CN performance remains below the 90% threshold for a tenth straight week. Meanwhile, in supplying 75% of shipper orders, CPKC saw performance improve dramatically from the 52% order fulfillment performance seen in week 33, with the railway posting their best performance in eight weeks. CPKC performance remains below the 90% performance th

Crop input retailer happy United Farmers of Alberta bought AgraCity

A competitor is pleased with United Farmers of Alberta’s purchase of the AgraCity Group of companies. Farmers Business Network thinks the deal is good news for farmers. “The work that AgraCity did to build their portfolio of products and labels will still be available to farmers going forward,” said Breen Neeser, FBN’s general manager for Canada.“They have some really good products.” He is happy that the AgraCity assets are staying in the hands of an established western Canadian company that has been in the agriculture business for a long time. “They know farming,” he said. “They’re partners with farmers.” Neeser believes UFA was keen on expanding their footprint in Saskatchewan. “I think that was part of the play,” he said. He is pleased that the assets did not end up in the hands of a foreign entity. “UFA is part of the fabric of western Canadian farming, especially Alberta and in some ways Saskatchewan now,” he said. “I’m glad it’s in the hands of somebody who sees the bus

Greenbelt Seen as Key to Ontario Food Security and Agri-Food Growth

Ontario’s Greenbelt should be treated as a strategic pillar of food security and economic growth, according to a new report released by the Greenbelt Foundation.

More…

Badges | Report an Issue | Terms of Service