14
As long as enough satellite signals are received to generate
valid position fixes, the 1PPS output remains synchronized
to the GPS second, and the 1PPS Valid Signal remains
active. If signal blockage prevents the receiver from
generating valid position fix, the 1PPS output will drift away
from the GPS second and the 1PPS Valid Signal will
become inactive. Upon re-acquiring enough satellites to
generate consecutive valid position fixes, the 1PPS Valid
Signal will become active again, signaling that the 1PPS
output is again synchronized with the GPS second.
For best stable operation of the 1PPS signal, it is to be
operated in static environment having clear view of the sky.
Summary of Contents for HI-204III
Page 1: ...HI 204III USB Ultra High Sensitive USB GPS Receiver...
Page 3: ...1 HI 204III USB WATERPROOF Ultra High Sensitive USB GPS Receiver...
Page 7: ...5 For notebook PC use HI 204III USB connect with a LaptopPC USB port USB port...
Page 13: ...11 2 2 LED INDICATOR LED flashing 0 25Hz LED flashing 1Hz Signal Searching Position Fixed...
Page 30: ...28 USB Driver Setup Guide HI 204III USB USB GPS Receiver...
Page 33: ...31 Figure 3 Screen of GPS USB Driver Win 98 and Win ME Group...
Page 35: ...33 Step 1 Click the Next button Figure 4 Win 98 Automatic Installation Driver Screen...
Page 38: ...36 Step 4 Click the Next button Figure 7 Win 98 Automatic Installation Driver Screen...
Page 39: ...37 Step 5 Click the Finish button Figure 8 Win 98 Automatic Installation Driver Screen...
Page 41: ...39 Step 2 Double click the Control Panel icon Figure 10 My Computer Screen...
Page 42: ...40 Step 3 Double click the System icon Figure 11 Control Panel Screen...
Page 43: ...41 Step 4 Press Device Manager button Figure 12 System Properties Screen...
Page 45: ...43 Step 6 Browse COM3 properties Figure 14 System Properties Screen...
Page 51: ...49 Step 2 Select Hardware Figure 23 System Properties Screen...
Page 52: ...50 Step 3 Select Device Manager Figure 24 System Properties Screen...
Page 53: ...51 Step 4 Select Ports COM LPT Figure 25 Device Manager Screen...
Page 54: ...52 Step 5 Select COM4 Figure 26 Device Manager Screen...
Page 55: ...53 Step 6 Select Driver Figure 27 USB to Serial Bridge Screen...
Page 56: ...54 Step 7 Browse COM4 properties Figure 28 USB to Serial Bridge Properties Screen...
Page 64: ...WATERPROOF USB GPS Receiver...