I didn’t get it from Sparkfun. We use them at work. We buy them from [Jim Gary & Associates. I was also using it with a passive patch antenna today and it was working great! It has a bulit-in LNA that seems to be quite good.
I was measuring the current consumption and it was drawing about 70 milliamps when it was acquring but then it drops down to about 30 milliamps while it’s tracking.
All in all, I’m pretty impressed with it. Next project is to design my own GPS board using this chip.](http://www.jimdgrayassoc.com/index.htm)