Geodetic Measurement Station GM-100 Series. DL GM-100 Series Instruction Manual (Top Basic) [PDF:6,175KB] (Open in another window); DL GM-100 Series All contents in this manual are copyrighted by Topcon Positioning Systems, For Raw Data, select whether to output FC-5, FC-6/GTS-7 or GTS-6 format. Thank you for purchasing the TOPCON Data Collector FC-100 series. For superior product performance, please read this instruction manual carefully and keep FC-120 ESC Alt INSTRUCTION MANUAL DATA COLLECTOR FC-120 SERIES FC-120 64855 This is only to be carried out by TOPCON or an authorized dealer, only! All contents in this manual are copyrighted by Topcon. All rights reserved. device (such as, Topcon's FC-120/FC-200/FC-2000/FC2200/.NOTE: Full MAGNET software manuals are published as part of the software installation, and can be found via Help menu.