Trimble 4D ControlTM Software, version 4.5.2
This software update for Trimble® 4D Control™ contains all changes since the release of version 4.5.0. The following document gives you an overview of the changes.

∙	Fixed points used in adjustment 

Using either the setup type “Station setup” or “Station Setup Plus” the total station is usually positioned on a point with stable coordinates that is also selected as fixed point in terms of the subsequent adjustment. In such a case it is now ensured that the total station is hold fixed during the adjustment process and thus no displacement chart is visible for this point at the Integrity Monitor module.   

∙	Compensator calibration

Since version 4.4 of Trimble 4D Control the compensator calibration also triggers a reset of the connected total station. This reset does now also apply to the associated scheduler functionality with version 4.5.   

∙	Heat Map image visualization 

Under certain circumstances it might happen that the heat map image is shifted relatively to the associated sensor. This software update guarantees that the visualization of both components matches. 

∙	Slope distance chart view

The slope distance chart view at Trimble 4D Web now excludes any entries caused by the reset reference circle functionality. With this amendment the slope distance chart at Trimble 4D Web fully matches the appropriate chart of the related Integrity Monitor module. 

Trimble 4D ControlTM Software, version 4.5.1

∙	Time Offset

The configured start time of scheduled round measurements refers to UTC time. In terms of the selected days at which the round measurements should be performed the difference between UTC and local time has not been interpreted properly. With this software update the time settings work as expected.   
   
∙	Repeat Measurements

The scheduler configuration allows to specifying after which time the round measurement is repeated in case of a failure. The repeat action does not apply any longer to round measurements that were started manually. 

∙	Image Upload

Since the release of Trimble 4D Control version 4.5 the Maps page at Trimble 4D Web also allows to uploading images that are not geo-referenced. The manual specification of its extents at Trimble 4D Web has been reworked and is more robust now.