Comparison of the multi-path effect between Trimble R7 and Topcon NET-G3A

Trimble R7 and Topcon NET-G3A are two common GPS receivers and both deployed with choke antenna. But two matching antennas are different capacity to suppress multipath effect. The research results that for two types of receivers, the ability of mitigate multipath effect based on P code with low satellite elevation cutoff angle is more effective than C/A code. Comparing with Topcon NET-G3A receiver, the multipath mitigation ability of Trimble receivers is better with low satellite elevation cutoff angle.