- Tue Jul 26, 2011 2:40 am
#130753
Hi all!
I've built a SMS GPS Tracker for my car. I'm using Telit GM862 Quad GPS module. It seemed very practical.. having both GSM and GPS functions in one module. The device is actually working fine except for one problem. GPS position readings vary a lot. I'm using the external active GPS antenna. If there are no buildings around my car then everything is OK. As soon as I park near some building the readings vary +- 20 meters at least.
Now, I'm thinking of using some other GPS receiver which can be more accurate if sorounded by tall buildings.
I'm considering using UBLOX LEA 6S module. Nevertheless, surfing the internet I've found about the SIRF STAR III chipset.
Can somebody tell me the diference between UBLOX LEA6S and some GPS receiver based on SIRF STAR III chipset?
Also, can someone provide a part number of some GPS receiver based on SIRF STAR III chipset (I mean the module which can be placed on the PCB)?
Thanks in advance!
I've built a SMS GPS Tracker for my car. I'm using Telit GM862 Quad GPS module. It seemed very practical.. having both GSM and GPS functions in one module. The device is actually working fine except for one problem. GPS position readings vary a lot. I'm using the external active GPS antenna. If there are no buildings around my car then everything is OK. As soon as I park near some building the readings vary +- 20 meters at least.
Now, I'm thinking of using some other GPS receiver which can be more accurate if sorounded by tall buildings.
I'm considering using UBLOX LEA 6S module. Nevertheless, surfing the internet I've found about the SIRF STAR III chipset.
Can somebody tell me the diference between UBLOX LEA6S and some GPS receiver based on SIRF STAR III chipset?
Also, can someone provide a part number of some GPS receiver based on SIRF STAR III chipset (I mean the module which can be placed on the PCB)?
Thanks in advance!