GPS Receiver Technology Update

Receiver and satellite technologies continued to show gains this past year. The buzz this season has been to purchase units that can access not only the robust U.S. GPS but also Russia’s GLONASS system.

“All new receivers from the major players are now being manufactured GLONASS-capable and are future-proofing for Galileo (Europe’s satellite system),” says Trevor Mecham, Leica’s North American business manager, ag. Leica believes in the GLONASS boost so much that any mojoRTK user can demo GLONASS satellite activation before they buy it, to see if it improves their performance along tree lines and during poor satellite availability, says Mecham.

Topcon Positioning Systems has been working with multiple satellite constellations since 2000, says Mike Gomes, OEM accounts manager. He says the current GLONASS system stands at 16 satellites, with another six slated for launch in 2008. “In a GPS plus GLONASS system, typically users can have between seven and 16 satellites available, even if you go behind a mountain or into a canyon or behind a stand of trees. You can keep going when GPS-only can’t,” he explains.

Small But Mighty

There’s also a move afoot to provide more low cost choices, including units that combine receivers and antennas in one unit, dubbed “smart antennas.” Ag Leader introduced its GPS 1500 high-accuracy receiver/antenna late last year. “Our goal was to provide a GPS receiver with the accuracy needed for maximum performance using AutoSwath while keeping it affordable for our customers,” says Matt Leinen, GPS and guidance product manager. He says the GPS 1500 offers a fast update rate and sub-meter accuracy.

Newest in Raven Industries‘ product line are the Phoenix 50 and Phoenix 250. “The ruggedized Phoenix 50 is your entry level WAAS receiver for applications like yield monitors and crop scouting,” says Darrell McCauley, operations manager. The 250 has the features of the Phoenix 200 plus adds the ability to receive OmniSTAR VBS corrections.

Hemisphere GPS has the A100 Smart Antenna, calling it an affordable all-in-one DGPS receiver solution that offers fast start-up and reacquisition times and 60-cm accuracy.

The AgGPS 106 is Trimble‘s all-weather, low cost DGPS smart antenna for yield or field mapping. The company also offers a range of stand-alone receivers (such as the AgGPS 442, 432, and 332) that can be coupled with antenna options to provide a variety of correction and accuracy levels.

There’s some debate about which is better: external, stand-alone receivers or receivers built into display boards. Dr. Mike O’Connor, CTO of Novariant-AutoFarm, says customers and dealers prefer a simple connection between the GPS equipment on the roof and the display hardware in the cab. “This generally requires a stand-alone receiver system on the roof of the vehicle, so that a standard wire cable bundle can be run into the cab, rather than a coaxial cable,” he describes.

But other manufacturers would disagree. Leica’s Mecham believes the only advantage external units have had over the last 10 years is upgradeability. “With the new boards moving to firmware-upgradeable versions, this advantage is basically lost,” he says. “Built-in receivers reduce manufacturing costs and reduce field breakdowns due to cable and connector failures.”

Multiple antenna set-ups are gaining favor in the industry since they provide very precise positioning as well as heading and terrain compensation measurements, says O’Connor. “This allows vehicles to start automatically steering from a dead stop and to operate at very low speeds.”

No matter the guidance set-up, Jim Shone, sales director at TeeJet Technologies, says users don’t need to be confused trying to put together pieces-parts like receivers and antenna. The company’s entry-level guidance product Centerline 220 is an answer, and inside the compact lightbar is a high-quality WAAS GPS receiver. “We’re trying to make a very simple interface where customers don’t have to configure a lot of the settings prior to the operation of our products,” he says. “They can just plug and play.”

Correction Solutions News

Consumers there are. John Pointon, director of sales and marketing with OmniSTAR, said subscription sales at the company broke all previous records by April 2007 — and broke them again for April 2008.

RTK is also hot. “The biggest advancement in satellites and signals is the proliferation of RTK base stations,” says O’Connor. “In many areas it is now possible to purchase a system that is capable of sub-inch RTK steering performance without purchasing and installing your own base station.”

Indeed, DOT-sponsored RTK CORS (Continuously Operating Reference Stations) technology is soon becoming available for dealers and growers — and it’s “the next big thing,” says Mecham. The RTK signal from DOTs is mostly available free for public use, he explains. The Iowa CORS network, offering dual frequency receivers, comes online in late 2008, and Leica will be providing CORS support to enable farmers and dealers to connect to these rapidly expanding state networks.

One of the leading improvements that John Bohlke, director of product marketing with Hemisphere GPS, sees is with the company’s single frequency RTK. In a patented technique, the firm uses SBAS (WAAS, EGNOS, etc.) satellites for ranging in order to improve its RTK solution in the Outback product line. “And just the quality of the Crescent GPS receiver makes it a very affordable way to get centimeter level accuracy,” he says. In fact, the Crescent is featured in the new Outback S3, released in 2008.

John Deere Engineer Curtis Hay finds RTK growth — both in network expansion and individual use — is still quite strong, and “StarFire 2 sales are quite good. It points to a growing want and need for centimeter-level accuracy, which would make applications such as strip till or drip tape quite reasonable,” he says.

Topics:

Leave a Reply

Guidance Stories
Trimble-GFX-750-Display
GuidanceTrimble Introduces GFX-750 Display System with Advanced Guidance Controller
October 30, 2017
Trimble has introduced the Trimble GFX-750 display system for agriculture applications. The display system comes with the simple-to-install, roof-mounted NAV-900 Read More
Beacon
GuidanceDigiFarm VBN Announces Supplier Agreement with AGCO
September 7, 2017
DigiFarm VBN LLC, an agricultural technology company, announces it has signed a supplier agreement with AGCO Corp., a world-leading manufacturer Read More
Young Corn Field
GuidanceOutback Guidance Launches Hands-Free Farming Campaign at Farm Progress Show
August 30, 2017
Outback Guidance, a leader in automated steering and advanced precision farming solutions, and a part of AgJunction, Inc., is launching Read More
GuidanceRaven Announces 2 New In-Cab Technologies
August 23, 2017
Raven Industries announces the release of two new precision agriculture products: RS1 and CR7. The RS1 combines autosteer, GPS, and Read More
Trending Articles
Harvested-Corn-Field-Clouds
Data ManagementWeather Services Advance Precision Agriculture
December 4, 2017
Some estimates suggest over half of growers’ activities are impacted by weather conditions, from field workability to fertility management to harvest Read More
Wheat-an-oats-Daniel-X-ONeil
Data ManagementWill Open-Source Finally Unlock Ag Technology’s Potential?
November 28, 2017
To Aaron Ault’s eyes, ag technology right now is something like a walled garden — not unlike the Microsoft of Read More
Africa/Middle EastPERSPECTIVE: Is Bayer’s Highly Anticipated xarvio App the Next Uber for Ag?
November 22, 2017
As many of our CropLife IRON readers might know, every summer at MAGIE we award the most popular product featured Read More
Used Combine
Service ProvidersFinding New Precision Ag Opportunities in Older Equipment
November 15, 2017
Whether to buy new or used equipment has been and continues to be an important topic for growers. When it Read More
Blue River Tech See and Spray prototype in CA
Business ManagementIs the Agtech Startup Boom Over?
November 13, 2017
In the past few months there has been a flurry of acquisitions of agtech startups by major players in the Read More
Spray Drift
Business ManagementProtecting Your Business with Ag Data: What Dicamba Can Teach Us (Guest Column)
November 9, 2017
All over the country, in ag communities large and small, farmers are reporting crop damage, neighbors are fighting, lawsuits and Read More
Latest News
Sentera drone
Business ManagementAgTech Conference of the South Coming to Alpharetta, GA
December 13, 2017
Tech Alpharetta, with the support of the city of Alpharetta, has announced the AgTech Conference of the South to be Read More
corn weather
Industry NewsMyriad Mobile Acquires Nebraska Ag Tech Outfit iNet Sol…
December 13, 2017
Myriad Mobile (Myriad), a full-service mobile and web application development company, today announced it has acquired Omaha-based ag technology company Read More
Drones-belong-in-the-hands-of-growers
Industry NewsPrecisionAg.com’s 17 Most Read Stories in 2017
December 13, 2017
Roughly speaking, we’re a little over two weeks away from blowing out the candles on 2017. It’s been a bizarre Read More
Farmer Advisor
Service Providers2018 Plan: Engaging the Next Generation of Ag Service P…
December 12, 2017
Here at Meister Media Worldwide (MMW) HQ we’re deep in the throes of content planning for 2018. Our rookie season Read More
Field
Decision Support SoftwareCeres Imaging Details New Pest, Disease Detection Produ…
December 12, 2017
Ceres Imaging, which provides science-backed aerial images to growers, will offer Midwestern corn and soybean farmers an early warning system Read More
Claas RTK Field base
Industry NewsCLAAS Taps Syncron for Cloud-Based Spare Parts Manageme…
December 11, 2017
Syncron, a provider of cloud-based after-sales service solutions, today announced CLAAS, a manufacturer of agricultural machinery, has selected Syncron Inventory – Retail Read More
Farmer and computer
Service ProvidersPrecision Agriculture Writers Wanted To Join Our Team i…
December 10, 2017
About The Opportunity: PrecisionAg.com is looking for people to join our team in 2018 and submit original content to our Read More
american-robotics-Scout-Drone
DronesAmerican Robotics Unveils Fully Autonomous Drone System…
December 7, 2017
American Robotics, an industrial drone developer specializing in agricultural automation, has unveiled its flagship product Scout. It is a self-charging, Read More
Industry NewsJohn Deere Upgrades Generation 4 Display Capabilities
December 6, 2017
John Deere has introduced its latest advanced guidance and machine data sharing technology with the addition of three new AutoTrac Read More
Grower-Field-iPad-Connectivity-Photo-Credit-VLab
Business ManagementOpinion: Agtech Boom Is Yet To Come
December 6, 2017
Many agronomists, farmers, and VC groups monitoring the agtech world are proclaiming the startup boom is over. Investments are down, Read More
Data ManagementAgritechnica 2017: Executives Discuss Europe Ag Tech Ad…
December 6, 2017
While North American growers slog through yet another season of depressed farm incomes and commodity markets, across the pond it’s Read More
Bitcoin-for-Agriculture-Source-TheJavaCoincom
Data ManagementWill Bitcoin Work in Agriculture?
December 5, 2017
If you checked the Internet lately, you’ve probably seen the words, Bitcoin, cryptocurrency, and blockchain. I won’t describe them in Read More
Vineyard weeding Robot-Naio-Technologies
Robotics/Labor SaversRobots Are Coming for Your Crop Protection (and Other I…
December 5, 2017
The market for agricultural robotics market is small but burgeoning, and their impact is likely to be quite a bit Read More
John-Deere-Connect-Mobile
Service Providers10 New Mobile Apps for Precision Agriculture
December 5, 2017
Ag professionals continue to reap the rewards of new smartphone apps. And perhaps no segment of farming is benefitting more Read More
On-Farm-Trials-Brazil
AmericasOn-Farm Trials in Brazil: The Way to Improve Agronomic …
December 4, 2017
The idea of using on-farm trials to gather data about the performance of any crop input has been in place Read More
Harvested-Corn-Field-Clouds
Data ManagementWeather Services Advance Precision Agriculture
December 4, 2017
Some estimates suggest over half of growers’ activities are impacted by weather conditions, from field workability to fertility management to harvest Read More
Longford-Silt-Foam-map
Data ManagementUnderstanding Precision Farming and Soil Morphology
December 4, 2017
The USDA Soil Conservation Service, now Natural Resources Conservation Service, has been charged with creating the country’s soil survey. This Read More
Spensa platform
Industry NewsSpensa Adds TerrAvion Aerial Imagery
December 4, 2017
Spensa Technologies announces today its partnership with TerrAvion, a California-based start-up that provides aerial imagery for agriculture. As customers of Spensa Read More