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This paper summarizes the results of our continued testing of a radio based, non-Global Positioning System (GPS) navigation and communications system. The system has been integrated with two mobile computers, a robot and four work stations. It demonstrated crewmember interfaces for acquiring, storing and transmitting data from a space suit life support system simulation, test subject Electrocardiogram (ECG) and other biomedical data. This is an extension of the functions which were tested last year during the NASA Desert Research and Technology Studies (RATS) 2006 activities at both Johnson Space Center in Houston Texas and at Meteor Crater near Flagstaff Arizona. We added considerable complexity to the tests. The tests were conducted on an accurate series of geo-referenced paths at the El Toro Marine Air Station, a closed air field.