SIRFStar IV (4)

GPS/GNSS Development Boards
1

I’m looking for a SIRFStar IV module that doesn’t come with an antenna attached. Where can I get a high performance one with 66+ channels etc. ?

2

Hi,

All CSR GSD4e (SiRFStar 4) are marked as 48 channels:

http://www.csr.com/products/35/sirfstariv-gsd4e

And nobody would ever need more than that as GPS has only 37 allocated PRN IDs :slight_smile:

You may look here:

http://michelebavaro.blogspot.com/2011/ … rrier.html

for a non-exhaustive list of antenna-less modules; depending where you live, some may be easier to buy than others.

Cheers,

Michele

3

Thanks, Michele.

Do you know if breakout boards are available for any of those modules? I wasn’t able to find any.

4

Hi Anon,

The main issues when evaluating GSD4e-based modules are:

  • I/Os are usually CMOS 1.8V

  • you need to generate a 100ms pulse to turn them on/off

But still, there a few eval kits out there:

http://uk.rs-online.com/web/p/gps-globa … m/0537717/

http://uk.rs-online.com/web/p/communication/7165299/

http://uk.mouser.com/ProductDetail/Maes … zslb7Bo%3d

http://uk.mouser.com/ProductDetail/Wi2W … mcKtvyY%3d

etc…

Is that what you were looking for? A simple breakout would have little value as these modules are fairly easy to solder to your PCB using slightly extended copper pads.

Best regards,

Michele