Specifications
RMU800A SERVICE MANUAL 
- 48 - 
Notes: 
1)    If a transmission starts with the "*" or "#" tone, the radio compares the tone duration with the set 
"First Digit Time", and adapts the longer time of the two to the first "*" or "#" tone. 
2)    DTMF Transmit Delay Time sets the delay time from the starting of transmission to the sending of 
the first DTMF digit. Making this value longer has a similar effect as setting the First Digit Time 
longer. When using DTMF and CTCSS/CDCSS it is recommended to set this parameter to 100 ms 
or more. 
3)    If automatic DTMF encode function (PTT ID, Auto Dial, Store & Send and Dial ID) is used for DTMF 
Call, DTMF Speed must be set 6, 8 or 10 digits per second. 
D Code 
DTMF 
DKey D-Code     
Pause1-16s 
DTMF 
DKeyPause 1 
8 D Key Assignment
DTMF 
DkeyPause 16   
Side Tone Off 
DTM F 
SideTone Off 
9 DTMF Side Tone 
Side Tone On 
DTM F 
SideTone On 
Auto Dial Off  AutoDial Off     
10 Auto Dial 
Auto Dial On  AutoDial On   
AutoDialP Off  AutoDP Off   
11 
Auto Dial 
Programming 
AutoDialP On  AutoDP On   
Manual Dial Off  ManuDial Off  Hold [PTT], then dial 
12 Manual Dial 
Manual Dial On  ManuDial On   
Auto Tx Off  KeyAutoTxOff 
Not sent DTMF when only DTMF keys 
are pressed. 
13 Keypad Auto Tx 
Auto Tx On  KeyAutoTx On 
Sent DTMF by pressing a DTMF 
Keypad key 
14 END  END  END 
Display “END” indicating the end of 
menu option 










