Precision Point Blog

Kerri Birdwell

Kerri Birdwell came on board with the Machine Guidance Support team in October 2011. She is the Pacific Coast Field Support Technician. She provides technical support in the field and on the phone. Kerri graduated from Cal Poly, San Luis Obispo in 2009 with a degree in Agriculture Systems Management. After college she spent two years in the irrigation industry designing and making scheduling recommendations. Kerri was raised on a cattle ranch in Coalinga CA where she still spends the majority of her free time. She enjoys riding horses, hiking and being at the beach.

Jun, 28 2013 - by Kerri Birdwell

Explanation of Wheel Angle Sensors and why they are Important

It seems that the question has been raised as to why wheel angle sensors are required on GeoSteer installations as well as recommended on ParaDyme installations.  As such I am going to take some time this week to explain what a wheel angle sensor does, why it is important and how to get it just right.

When using integrated hydraulic steering systems such as the ParaDyme and GeoSteer, wheel angle sensors are important for achieving the highest level of accuracy.  A wheel angle sensors job is to know the exact location of the steering wheels or articulation point.  This allows the system to know your exact GPS position using the receiver as well as the exact position of the wheels.  Without a wheel angle sensor you will still have your exact GPS position but the system has to guess which direction the wheels are pointed based off of changes in the vehicle heading while moving.

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May, 28 2013 - by Kerri Birdwell

Moving Guidance Lines from one Display to Another

The way in which you move guidance lines is dependent upon how many lines you want to move and what version of firmware your display is on.  Ag Leader Integra and Versa displays on firmware versions 3.0 and above allow you to move all of your lines using an agsetup file.  Insight and Edge displays are only capable of using .pat (pattern) files.  These pattern files can be exported from and imported into all displays.  Agsetup files can only be exported from and imported into Ag Leader Integras and Versas on firmware versions 3.0 and above.  This can be a little confusing so I am going to take some time to explain how to go about both of these methods step by step.  Regardless of the method you are using a memory card is required.  A USB drive is used for the Ag Leader Integra and Versa displays and a compact flash is used for the Edge and Insight displays.

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Ag Leader

Apr, 09 2013 - by Kerri Birdwell

Gear up for Spring Planting 2013

Believe it or not as of March 20th spring has officially begun.  This means it is time to get prepared for planting.  As such I have decided to provide you with a list of things to do in regards to your guidance system before you dive into the season.

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Mar, 12 2013 - by Kerri Birdwell

Ag Leader Visits the World’s Largest Ag Expo

The World Ag Expo is held every February in the heart of California’s San Joaquin Valley. The show kicks off Tuesday morning with the National Anthem followed by an earth shaking fly over by 2 F/A-18F Super Hornet fighter jets from the local Naval Air Base. Five Ag Leader employees were able to attend this year. We not only were able to share information about our products with dealers and farmers from across the world but also got to enjoy the sunny and 65 degree weather that California winters are famous for.

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Ag Leader

Nov, 20 2012 - by Kerri Birdwell

Winter is Coming! Don't Forget to Properly Store Your GPS and Guidance Products!

November is here and for most of the country that means seasons are changing and the time for field work to wind down and machinery to be stored for winter has come.  If you are like me and in a part of the world where it feels like summer is never ending, GPS storage may be the last thing on your mind.  For those of you who actually get to experience seasonal changes there is a proper way to store GPS equipment during the winter.  I am here to take some time to remind all of our dealers and customers of that process.

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Ag Leader

Oct, 09 2012 - by Kerri Birdwell

Ag Leader GPS Terms Dictionary

We know that many times when we start talking in technical terms, your eyes glaze over. But, that is coming to an end with the introduction of a mini blog series we're doing. We will take time over the next couple months to define a handful of the most commonly used and confused vocabulary. This week is GPS, so take a look and surprise your dealer, neighbors and coffee shop cronies with your infinite GPS knowledge.

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Aug, 15 2012 - by Kerri Birdwell

NTRIP/CORS: How it works and what is involved?

NTRIP, CORS and VRS are different things.  However, the terms are often used synonymously in our industry.

NTRIP (Network Transport of RTCM via Internet Protocol) and CORS (Continuously Operating Reference Station) are forms of RTK differential correction that are done through the use of a cellular modem and base station network.  This means that instead of using the traditional base station and radio to send correction data to a rover, data is sent using the internet to a cellular modem with a data plan.  VRS (Virtual Reference Station) is simply a method of RTK correction that will be explained further later.

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