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General GPS

AFS GPS ProductsThese questions relate to general GPS/DGPS issues not related to any specific operation. For example, a question like "What is the latest firmware version for the 252 receiver?" will be found here, but a question like "What version of 252 firmware is required for compatibility with NavII firmware version 3.32?" will be found on the AFS AccuGuide page.


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May 26, 2009

There is a need for multiple GPS outputs from the 162, 252, and 262 GPS receivers.

This is especially common when exporting GPS to a secondary control or logging system on an AccuGuide-equipped vehicle.  When trying to engage AccuGuide, the AFS Pro 600 displays FAULT 62, which indicates a PPS (pulse per second) error in the circuit between the GPS receiver and the Nav II controller.  Autoguidance will not engage.  This condition is found most often on tractors running AccuGuide autoguidance and pulling a planter that runs row clutches via a second control system (not via the AFS Pro 600).

Use CNH part number ZTN55224 to export GPS signals from a 162, 252, or 262 receiver to a 3rd-party device.  This cable is designed to allow Port C to be utilized when Ports A and B are already in use (for example, when using RTK and the Joey radio).  The pin in location 4 of the 12-pin Deutsch connector at the receiver is the PPS wire.  The PPS can be thought of as the "heartbeat" between the receiver and Nav II controller.  If you use a cable other than ZTN55224, it is very likely that the cable has a terminal in the #4 location, and this either dilutes the PPS signal so the Nav II cannot recognize the signal, or resets the receiver configuration so it can no longer communicate with the Nav II controller.  Cable ZTN55224 does not have a terminal in the #4 location.

Sep 10, 2008

GPS differential correction signal (DGPS) subscriptions are now ordered and renewed directly though OmniSTAR Inc. Customer Service.

You may contact OmniSTAR Customer Service at 1-888-883-8476, or contact your local Case IH dealer for assistance.

Sep 10, 2008
The AFS 100 WAAS receiver is not compatible with any Case IH lightbar.

Lightbars may be used with the AFS110, AFS130, Universal Receiver, and AFS252/262.

Sep 10, 2008

Older Universal Receivers built prior to model year 2002 were not WAAS-enabled.

To determine whether or not the receiver is WAAS-enabled, navigate to the DGPS CONFIG screen and scroll through the DGPS SOURCE menu. If WAAS is already enabled in the receiver, "WAAS ONLY" will appear as an option in this menu.

Follow the steps outlined in the table below:

1. From the receiver home screen, press the right arrow to go to the configuration menu.

2. Press the down arrow one time.

3. Press the right arrow to "DGPS CONFIG."

4. Press the down arrow repeatedly to display "DGPS SOURCE."

5. Press the right arrow to get a cursor.

6. Press the up arrow to scroll through the options. If WAAS is available, one of the options will display "WAAS ONLY." To use the WAAS, select this option and hit the enter key, and continue by hitting the down arrow to the WAAS BACKUP screen.

If the WAAS ONLY option is not available on the DGPS SOURCE menu, the receiver must be enabled to use the WAAS signal. To enable a Universal Receiver to receive the WAAS signal, or for more information, see your local Case IH dealer.

7. Press the right arrow to get a cursor.

8. Press the up arrow to select "Off." Hit the enter key.

9. Press the down arrow to the T2 REMAP screen.

10. Press the right arrow to get a cursor.

11. Press the up arrow to select "On." Hit the enter key. The receiver is now WAAS-enabled. The lower left-hand corner of the screen should display WAAS.

Sep 10, 2008

When the Universal Receiver LCD screen displays black squares (or the screen is lit up without text), the Universal Receiver's screen contrast may be set incorrectly.

To correct the screen contrast, follow the steps below. (Because the receiver display is all black (or all light), the screen cannot be read while the following changes are made.)

1. Apply power to the receiver.

2. Press the up and down arrows together twice to get to the Home screen.

3. Press the down arrow twice to get to "Contrast."

4. Press the right arrow to edit the contrast.

5. Press the up arrow to make the screen brighter or press the down arrow to make the screen darker. As you press the appropriate arrow, text will begin to display. If adjusting the contrast does not resolve the problem, your receiver faceplate may need to be replaced. See your local Case IH dealer for assistance.

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