Transystem 747 A+ - Manual (Page 15)

15
2.3 Helpful Tips
- It’s better to turn off the 747 A
+
when you don’t use it, or the serial Flash's
life can’t last long.
- Some vehicles having heavy metallic sun protecting coating on windshields
may affect GPS signal receptions
- Driving in and around high buildings may affect GPS signal receptions.
- Driving in tunnels or indoor park may affect signal receptions.
- In general, any GPS receiver performs best in open space where it can see
clean sky. Also weather will affect GPS reception – rain & snow contribute
to worse sensitivity.
- Low battery of a PDA or of an 747 A
+
may affect signal receptions.
- Please check the correct “COM” and “Baudrate” of your PDA.
- 747 A
+
output data updates every second, therefore the actual position and
the position shown in your map may have slight time delay. This may
happen when you drive at higher speed or make a turn around a corner.
- Note that 747 A
+
may not work indoors where it can not see the sky.
- For the 1
st
time you use the 747 A
+
, it will take 1 to 3 minutes to obtain the
satellite constellation information and fix your position, this is called “Cold
Start”. If you replace the battery, 747 A
+
will do Cold Start again.
- If your 747 A
+
can’t fix your position for more than 20 minutes, we suggest
you change to another spot with open space and then try again.