43Transmitting an APRS® Message7 Press H.The cursor moves to the 1 st character position.8 Enter the characters using keypad keys.9 Press H.The cursor moves to the next character position.Tip When F is pressed, a character is deleted and the cursormoves to left.10 Repeat steps 8 and 9 to enter characters.Up to 16 characters can be entered.11 Press p.Registers the fixed text and exits from the Set mode.List Table of Enterable Characters to Messages䎶䏓䏄䏆䏈䎶䏓䏄䏆䏈TipWhen entering characters, press 0 to enter [0], [SPACE], [-], [%], [/], [?], [!], [.], [:], or [#]. Message reception verification data (ACK)When transmitting messages to another station, ACK (message reception verification data)indicating the message was received is automatically sent back in response.When ACK data is received from the other station, a reception confirmation alarm sounds,and the transmission process is completed.If ACK data is not sent from the other station after 1 minute, the same message isretransmitted to the other station.If ACK data is not sent from the other station after 5 attempts, the message is displayedto be TX OUT. The remaining transmission attempts of ACK appear on the LCD as shownbelow.The remaining number of attempts can also be checked by pressing H and switching tothe transmission details screen.