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1. Sett n r A t Ac n ed e ent<br />
1. OPERATIONAL OVERVIEW<br />
Individual, position, polling and test calls can be acknowledged automatically or manually.<br />
Press the /AC /S key to switch the acknowledge mode between automatic and manual<br />
alternately. The message AUTO AC or MANUAL AC appears on the DSC standby screen<br />
with each press of the key.<br />
N te When own ship’s communication is high priority, set to MANUAL AC .<br />
The auto acknowledgement is not sent in the following cases:<br />
• The category of a received message is DISTRESS, URGENC or SAFET .<br />
• The communication mode is NBDP-FEC, NBDP-ARQ or DATA.<br />
• Com Freq is NO INFO.<br />
• ECC is NG (No Good).<br />
• The handset is off hook.<br />
1. Sy te C aracter t c<br />
1. .1 ent r r ty<br />
Equipment priority order is as below.<br />
1. Control unit sending distress alert<br />
2. Control unit 1 routine use<br />
. Control unit 2 routine use<br />
. NBDP<br />
1. . C ntr bec e n erat e<br />
Controls become inoperative in the following conditions:<br />
• When the other control unit goes OFF HOO on RT mode in the two control units system.<br />
• When the other control unit switches to the DSC mode in the two controls system.<br />
• NBDP is scanning or communicating.<br />
• Distress alert or distress relay is transmitted.<br />
• Call other than distress is transmitted (transmission time about sec.) If it becomes<br />
necessary to unlock the keyboard before the message is transmitted, press the CANC<br />
key to cancel the call.<br />
1. .3 C ntr bec e erat e<br />
Controls become operative in the following conditions:<br />
• DS SS button is pressed.<br />
• Control unit having higher priority is operated.<br />
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