Frequency Range of Tone Generator - DTX CableAnalyzer

• #define FI_A 440
• #define FI_As 466
• #define FI_B 494
• #define FI_C 523
• #define FI_Cs 554
• #define FI_D 587
• #define FI_Ds 622
• #define FI_E 659
• #define FI_F 698
• #define FI_Fs 740
• #define FI_G 784
• #define FI_Gs 831

The three digit number is the frequency. For example, FI Gs 831 is 831 Hz.