9 TONE23 Function Reference (FUNC) Version: 1.01 USA9.2 Information ToneYou can configure the following Information Tones byKPG-91D.Table 9-4 List of Information Tones9.2.1 Courtesy ToneThe Courtesy Tone can be referred to as Courtesy Beepor Go Ahead Tone. This tone is transmitted at end of thetransmissions using Repeater PTT, External PTT, orLocal Mic PTT.You can easily recognize that the repeater becomesavailable with the Courtesy Tone.Courtesy Tone• Frequency• Period• Send to RA! Configuration of KPG-91D" Configuring the Courtesy Tone (Refer to FPRG6.4.2 “Optional Features 2" tab.)9.2.2 Backup Battery ToneThis tone warns a user that TKR-750/850/751/851 isoperating with the backup battery.Table 9-5 List of Backup Battery Operation TonesYou can configure the following functions by KPG-91D.Backup Battery Warning Tone• Frequency• Send to RABackup Battery Operation Tone• Frequency• Interval• Send to RA! Configuration of KPG-91D" Configuring the Backup Battery Warning Tone(Refer to FPRG 6.4.2 “Optional Features 2" tab.)" Configuring the Backup Battery Operation Tone(Refer to FPRG 6.4.2 “Optional Features 2" tab.)Type Description of functionsCourtesy ToneThis tone notifies the end of thetransmission using Repeater PTT,External PTT, or Local Mic PTT.Backup BatteryOperation ToneThis tone notifies a user that TKR-750/850/751/851 is operating with aBackup Battery.• Battery Warning Tone• Battery Operation ToneFunction DescriptionBackup BatteryWarring ToneThis tone sounds for 5 seconds when thepower of TKR-750/850/751/851 is switchedto the backup battery.Backup BatteryOperation ToneThis tone sounds in certain intervals duringtransmitting by Repeater PTT, External PTT,or Local Mic PTT while TKR-750/850/751/851 operates with the backup battery.