Rayming TripNav TN-200 用户手册

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UG-TN200 V1.3  
 
 
TN-200
 
Click the drop down arrow on COM Port Number and scroll to the desired COM port.  Click OK. Please 
ensure that you do not select a COM port that is in use.  Note this is particularly useful for programs, 
such as HyperTerminal, which only work with COM1 through to COM4. 
VERIFY COM PORT ASSIGNMENT 
To verify the COM port assigned to your GPS, you must open the “Control Panel,” click on “System,” 
select “Device Manager” and look for the heading “Port (COM & LPT) and maximize it by clicking on 
the “+” sign.   You should see “USB to Serial Port” assigned to a COM port, (generally COM3, but this 
may vary from PC to PC).  
NOTE: Also from within your street mapping software, you may need to manually configure the 
selection of the COM port, which was assigned to the GPS receiver in order to properly communicate 
between the GPS receiver and mapping program.  (Most software requires that you manually configure 
the COM port setting for any GPS device. 
IMPORTANT:  
1.  You must change the default baud rate setting of your mapping software to 4800 if this is not the 
default setting otherwise GPS data cannot be received.  
2.  Set COM port to : 
Baud rate:    4800  
Data bit:        8 
Parity:           None 
Stop bit:        1 
Flow control: None 
 
INITIALIZING YOUR GPS RECEIVER  
Before using your TripNav GPS for navigation (especially for the first time), the receiver must obtain a 
local GPS fix (coordinates) of the current position.  To do this, take your laptop PC (with your USB 
driver and the mapping software loaded and configured) to an open area that has a clear view to the 
sky (such as a park or empty field).  Start your street map software and wait for initialization of the GPS 
to complete.  This may take a few minutes depending on various factors such as the distance of the 
current coordinates from the last time the GPS receiver was activated, GPS signal strength and 
surrounding terrain (tall trees and buildings can block the satellite signals). Once the RAW GPS data is 
displayed onto the screen, or a fix has indicated that initialization is complete (this will depend on the 
actual software being used).  In some cases initialization can take up to several minutes depending on 
the conditions mentioned above before complete GPS data will be displayed on the screen.  
Coordinates scrolling with zero’s means that the COM port connection is correct, but the satellite data is 
not being received yet (possibly still initializing or in a bad area for satellite reception).     
3.  USING TRIPNAV
 
Once the TripNav’s driver and your personal mapping software have been installed and configured 
properly, you can begin to use TripNav navigation system by plugging the TripNav into your laptop’s 
USB port and launching your mapping software. 
Always select an area in the vehicle where the GPS unit will be secure and not obstruct normal driving, 
visibility and safety, but still maintaining a “view to the sky” in order to receive satellite data.