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Criterion
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Laser
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GPS
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Intellislope
|
|
Wind Over 10 MPH
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Problem when more than 500 feet
from transmitter
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Not affected
|
Not affected
|
|
Blocked Signal
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Trees , equipment and structures
can block reference
|
Trees, equipment and structures
block satellite signals
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Pitch sensor not affected
|
|
Moving Parts
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• Spinning reference
• Reference leveling
mechanism
• Mast parts
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Solid State
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Solid State
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In-Cab Grade Change
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• Possible with remote control
laser but costly.
• Restricted distance from transmitter
|
?
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Yes
|
|
In-Cab Grade Breaking
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Must have mast
Limited to mast length (5 feet or less)
|
?
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• Unlimited grade break
• Crucial if you have hills
|
|
Limited Distance From Transmitter
|
Most transmitters rated at
1000-1500 feet
|
• No limit with subscription
• Line of sight with RTK
|
• No limit with subscription
• Line of sight with RTK
|
|
Multiple Use
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• Grade control
• Cement work
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• Grade control
• Auto-steer
• Yield mapping
• Planter rate control
• Topo work
|
• Grade control
• Auto-steer
• Yield mapping
• Planter rate control
• Topo work
|
|
User Controls
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• Easy, but archaic
|
•Touch screen or buttons
|
•Spin dial for eyes-off on-the-fly
grade change and grade break
•Large tactile-feedback buttons
|
|
AutoTile Capability
|
• None
• Must survey and determine grade for each area
|
?
|
• Drive over to survey ground
profile
• User-specified depth and minimum grade used to create profile
|
|
Measures Distance Traveled
|
No
|
Yes
|
Yes
|
|
Marks Tile As You Install
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No
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Yes
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Yes
|
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Need To Move Tripod
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Yes, if more than 1300'
|
No
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No
|
|
Calibration
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Recommended daily
|
?
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User-entered based on
auto-computed value
|
|
Drive Any Direction
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No, must align laser with
direction of travel
|
Yes
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Yes
|
|