Icom IC-905 Advanced Manual page 147

11
D-STAR OPERATION (ADVANCED)
BK mode communication
The Break-in (BK) function enables you to break into a conversation, where the 2 stations are communicating with
call sign squelch (DSQL) enabled
L The BK function is automatically turned OFF when you turn OFF the transceiver
L This function can be used in the DV or DD mode
1 While 2 stations are communicating, touch
for 1 second
• After releasing
the repeater's call sign is set to "TO" (Destination)
• Beeps sound, and the calling station's call sign is
announced
L When a call sign is not received correctly, error beeps
sound, and no call sign is set
2 Open the BK screen
» SET > DV/DD Set > BK
3 Touch "ON"
How to use Break-in?
While using the Digital Call Sign squelch (DSQL), the squelch never opens (no audio is heard) even if a call is
received, unless the call is addressed to your own call sign
However, when a call including the "BK ON" signal (break-in call) is received, the squelch opens and audio is heard
even if the call is addressed to another station
Station C calling to Station A with "BK OFF"
Station A
and B are
communicating
using the
Digital Call Sign
Station A
squelch
Station B does not hear that
Station C is calling Station A
, the calling station's call sign or
Station B
Station C
4 To close the DV/DD SET screen, push
several times
• Returns to the standby screen, and "BK" is displayed
5 When both stations are in standby, hold down
[PTT] to transmit
L "BK" blinks when receiving a Break-in call
L To cancel the BK mode, touch "OFF" in step 3, or turn
OFF the transceiver
Station C calling to Station A with "BK ON"
Station A
and B are
communicating
using the
Digital Call Sign
Station A
squelch
11-15
Station C
Station B also hears that
Station C is calling Station A
Station B