- 4 -Acquiring GPS SignalsThe fi rst time you turn on the KNA-G630CN, you must wait while the system acquires satellite signals for the fi rst time. This process could take up to several minutes. Ensure that your vehicle is outdoors in an open area, away from tall buildings and trees, for fastest acquisition. After the system acquires satellites for the fi rst time, it will acquire satellites quickly each time thereafter.Changing the FusesIf you need to replace a fuse on the red or yellow wires, to prevent a short circuit, ensure that the wires are not touching. Then replace the old fuse with a new 2 A fuse. CAUTIONWhen replacing a fuse, use only a new fuse with the prescribed rating. Using a fuse with the wrong rating may cause your unit to malfunction. To prevent short circuits, disconnect the wire harness before replacing a fuse.Specifi cationsGeneralOperating Temperature: From-20°C to 70°CStorage Temperature: From -40°C to 85°COperating Voltage:9.5 V to 25 VdcCurrent Consumption: 0.16 A typical at 13 Vdc (Max 1.0 A at 13 Vdc)ACC off Current:70 uA typical at 13 VdcDimensions: (W × H × D) 165 × 28.5 × 97 mmWeight: 186 gMap Storage:Internal non-removable memory and optional removable SD card (City Navigator® map data)Connectors:System/power, GPS antenna, SD card slot, Mini-B for optional FM traffi c receiverNavigationFrequency: 1,575.42 MHzAcquisition Times*:Warm: < 1 secondCold:< 38 secondsAutoLocate®: < 45 seconds*On average for a stationary receiver with an open sky viewUpdate Rate: 1/second, continuousGPS Accuracy:Position: < 10 meters, typicalVelocity: 0.05 meter/sec RMSAntenna: External GPS antenna requires metal surface 60 × 60 mm or larger, such as a car roof or the included metal plate. A larger metal mounting surface improves GPS reception.190-01162-02.indb 4190-01162-02.indb 41/8/2010 9:39:54 AM1/8/2010 9:39:54 AM