可以了，avrt3已经完美识别了。
当garmin 400t接上avrt3时，avrt3的解码数据输出航点数据，400t立刻显示呼号坐标，同时400t输出的标准nmea数据给avrt3提供了gps数据，avrt3可以发射aprs信息，由于garmin 400t是专业的gps万向天线和内置高配置的纠错和计算系统，定位准确漂移较小，为aprs带来了更好的效果。
附上400t输出的数据：
$gprmc,082537,a,3035.94,n,11417.66,e,0.0,161.2,300411,3.5,w,a*0d
$gprmb,a,,,,,,,,,,,,v,a*1c
$gpgga,082537,3035.94,n,11417.66,e,1,04,2.9,106.8,m,-14.4,m,,*6f
$gpgsa,a,2,,,,,20,,23,,,,31,32,3.1,2.9,1.0*3b
$gpgsv,4,1,13,03,04,192,00,06,13,181,00,14,43,123,00,16,46,225,00*7d
$gpgsv,4,2,13,20,22,301,24,22,05,171,00,23,09,317,24,25,15,042,00*77
$gpgsv,4,3,13,29,24,064,00,30,69,240,00,31,55,015,24,32,40,278,21*72
$gpgsv,4,4,13,40,00,-01,00*53
$gpgll,3035.94,n,11417.66,e,082537,a,a*46
$gpbod,,t,,m,,*47
$gpbwc,082537,,,,,,t,,m,,n,,a*70
$gpvtg,161.2,t,164.7,m,0.0,n,0.0,k,a*23
$gpxte,a,a,,,n,a*51
$hchdg,288.6,,,3.5,w*39
