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How to maximize GPS performances?
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Use outside where an unobstructed view of the sky is achieved
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The antenna has about 120Degree spread on its radiation pattern, it is best if all 120degrees are unobstructed (60degrees on each side)
- When a fix is obtained, the GPS module is likely still renewing its ephemeris data , the longer it runs with satellites in view/used, the more
ephemeris data is downloaded and can be used to shorten subsequent fix times
- Waiting a few minutes after a fix before turn off unit helps for most recent ephemeris info to be downloaded
- If the module has recent history of use it will tend to react and get a fix more quickly
Can I use the GPS inside close to a window?
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Using the GPS indoors is not recommended at all and known to not perform very well at all
GPS Optimization
Special GPS Test Mode
This mode allows User to turn on the GPS module without the App. The GPS will attempt to acquire a fix.
1. Flip switch SW1 to ON
2. LED1 will turn on solid
3. Hold User button of 4 seconds
4. LED1 and LED2 will start blinking slowly
5. Go outside under a clear blue sky
6. LED1 will blink rapidly once a fix is acquired.
7. Leave it on for the next 10-15 mins to gather more ephemeris data. This will help shorten subsequent fix times
Reset button resets GPS and MCU
but any ephemeris info still
remains in non-volatile memory.
Quick Start