... -215: 1,MTK chipset 2,32 parallel satellite 3,Low power consumption 4,in stock GPS receiver M-215: Overview:The HOLUX M-215 ... 32 satellitesReceiver : L1, 1575.42 MHzC/A code:1.023 MHzUpdate rate: 1 Hz.Antenna type : Built in patch antennaMinimum signal tracked ... /5 sec.),GPGSV (1time /5 sec.), GPRMC (1time /1 sec.),GPVTG (1 time/1 sec). Optional : GLL, or MTK NMEA Command.Led FunctionGPS ...