Icom IC-9100 Instruction Manual - Page 125

8 DV MODE OPERATION ■ BK mode communication The BK (Break-in) function allows you to break into a conversation, where the two other stations are communicating with call sign squelch enabled. q W hile receiving another station's communication in the DV mode, push [MENU] one or more times to display the "M3" screen (Menu 3). • In the DR mode, push [MENU] once or twice to select the "D1" screen. w H old down [R>CS](F-3) for 1 second to set the other station's call sign. • W hen a call sign has not been received correctly, error beeps sound, and no call sign is set. Try to capture the call sign of the signal again, or enter it manually. e P ush [DSET](F-5) to display the "DSET" screen. r P ush [SET](F-5) to enter the DV Set mode. t P ush [Y](F-1) or [Z](F-2) to select "BK." y R otate [MAIN DIAL] to turn ON the BK function. • " " appears. u P ush [MENU] to return to the "DSET" screen. i W hen both stations are in standby, push [PTT] on the microphone to transmit. (or push [TRANSMIT] on the transceiver) • T he programmed call sign station receives the break-in call as well as your call sign. • The MAIN Band TX/RX indicator lights red. o R elease [PTT] to receive. (or push [TRANSMIT] again) Wait for a reply call from the station who received the break-in call. !0 A fter receiving the reply call, communicate normally. • " " blinks when receiving a break-in call. !1 T o cancel the BK mode communication, turn OFF the BK function in the DV Set mode as shown in steps r through y. [TRANSMIT] DSET]/[SET] MAIN Band [MENU] [R>CS] TX/RX indicator Appears [MAIN DIAL] SET BK ∫ 18 √ ON When the BK function is ON. NOTE: The BK function is automatically turned OFF when transceiver is turned OFF. How to use Break-in? While using digital call sign squelch, the squelch never opens (no audio sounds) even if a call is received, unless your own call sign ("MY") is specified. (p. 93) However, when a call including the "BK ON" signal (break-in call) is received, the squelch will open and audio sounds even if the call is specified for another station. • Station C calling to Station A with "BK OFF" Station A and B are communicating using the digital call sign squelch. • Station C calling to Station A with "BK ON" Station A and B are communicating using the digital call sign squelch. Station A Station B Station A Station B Station B never hears that Station C is calling Station A. Station C Station B also hears that Station C is calling Station A. Station C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 116