Study Guide - Reference Books

Looking for reference material or study guide for Ohio's 2-Hour State=Specific Principles and Practice of Surveying Exam

ProMark 500

You can always use Opus Online User Service, but it must be at least 15 minutes and in Rinex2 Format, that Free or try EZSurv - GNSS Post Processing Software it cost $$ ( however you can at least get a Free Trial ) Both support Ashtech Units.

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