Solution 13521: Using TI-73 Explorer™ Calculators with a TI-Navigator™ Type I System.
Can I use my TI-73 Explorer calculator with my TI-Navigator Type I system?
The TI-73 Explorer calculator is not compatible with a TI-Navigator Type I system. A TI-Navigator Type I system consists of a RoamAbout Access Point and blue hubs.
To use a TI-73 Explorer calculator with a TI-Navigator system, the user must have a TI-Navigator Type II system as well as the TI-Navigator software (version 2.2 and above) installed on a Windows-based computer. A TI-Navigator Type II system consists of a TI-Navigator Access Point and light-gray hubs.
Please see the TI-Navigator Documentation for additional information.