You can download PCCDU 7.1 from our software library for free. This download was checked by our antivirus and was rated as malware free. This program is an intellectual property of TOPCON. PCCDU lies within System Utilities, more precisely Device Assistants.
From the developer:
PC-CDU is a comprehensive Windows software product designed for controlling GPS+ receivers developed by the Topcon Positioning Systems company. It uses GPS Receiver Interface Language (GRIL) to configure various receiver settings and diagnose the receiver performance.
You may want to check out more software, such as Garmin StreetPilot i2/i3 North America, QuickSpell English or PCLink PRO, which might be similar to PCCDU.