This command is used to configure the GPS radios and set the message type to use.  This command is used to set radio configurations for both base and rover receivers. If SurvCE is used in conjunction with the Red Controller from Leica, a serial port to radio baud rate of 38400 is often pre-set.  SurvCE should be set to conform to that baud rate. A useful feature of the Receiver Utilities is to verify the status of the receiver as either a Base or a Rover (bottom status line).




Motorola Cell Phone: With Freewave and other spread spectrum radio linkages, communication must occur within a line-of-sight distance, typically no more than 2 to 5 kilometers except in very flat terrain.  With PacCrest radios, the signal can “bend” somewhat, and achieve maximum distances of 10 kilometers, typically.  Cell phone linkage allows corrections to be transmitted within the coverage of the cell phones themselves and maintains accuracy up to as much as 50 kilometers.  Contact your Leica GPS vendor for appropriate cables for connectivity details.  When you select the Motorola configuration, the “Set Radio Channel” button becomes “Connect Modem”, and when tapped, you are prompted for a Phone Number for the actual cell phone (for the rover to call the base).  The base must also be hooked to a cell phone.  The base can actually be set to both cell phone and radio linkage, with the rover set to either cell or radio as preferred.  The rover will go from autonomous to float (cell phones are communicating) to fixed with cell phones just like with radio linkage.

Note:  Base and rover GPS receivers must have matching radio configurations.  If cell phones are used for the rover, then the base must be configured for cell phone use.  If PacCrest PDL radios are used on the rover, than PacCrest PDL radios must be used on the base.  Also note that cell phone switching is made possible through the C icon or Alt C “on the fly” from commands such as Store Points or Stakeout Points.  This is because of the availability of a “Utilities Tab” in Configure Reading when configured Leica GPS.

Reference Station: To obtain corrections from a reference station to a single rover, you typically must set to cell phone or modem linkage, depending on what is required by the reference station.