Backhaul Analyzer for Anritsu’s RF and Microwave Handheld Instruments : T1/T3 Analyzer (Option 53)  : Selecting the T1/T3 Analyzer Mode
  
Selecting the T1/T3 Analyzer Mode
1. Press the Shift key followed by pressing the Mode (9) key on the numeric keypad to open the Mode Selector list box.
2. Use the directional arrow keys or the rotary knob to highlight T1/T3 Analyzer and press Enter to select.