■ Position and time indicationWhen a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-nected, the transceiver displays the current position andtime. When no GPS receiver is connected, the transceiverdisplays the manually entered position and time.A GPS receiver appropriate for the IC-M505 is not suppliedby Icom. A GPS receiver with NMEA0183 ver. 2.0 or 3.01format is required for position and time indication. Ask yourdealer about suitable GPS receivers.25W INTTAG34°34.506N123°23.236WUTC 12:00 CALLING➥ When the connecting GPS receiver is compatible withseveral sentence formats, the order of input prece-dence is ‘RMC,’ ‘GGA,’ ‘GNS,’ ‘GLL,’ and ‘VTG.’➥ When sentence format ‘RMC’ is received, time indica-tion includes a date. Thus the ‘UTC’ or ‘Local’ indicationis not displayed.➥ “??” may blink instead of position and time indicationswhen the GPS data is invalid, or has not been manu-ally updated after 4 hours.■ GPS information indicationWhen a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-nected, the transceiver displays the GPS information afterpushing and holding [CHANNEL•ENTER] for 1 sec.--GPS Info--DATE : JAN/16/2006UTC : 12:00POS : 34°34.506N123°23.236WCOURSE: 261°MSPEED : 18.5ktPush for 1 sec.226 DSC OPERATION