GPS project, does it really have to cost this much?

[toebs]

Hello Electronics lab forum. This is my first post here, thou i have been a steady reader of the forum for a long time.

I want to  build i cylendrical shaped GPS pusher (vehicle-tracker).
The outside measurements of the whole device may not exceed:
Diameter 1.9cm (0.75")
Length 15cm (5.9")
I will be using an external antenna.

I plan on linking the GPS device to a GSM module via some uC (maye some ATtiny)

I have not been able to find many GPS modules that are not to big.
I found one, but i think it is very pricy:
http://www.sparkfun.com/commerce/product_info.php?products_id=8936

I hope someone has some ideas or suggestions that can help me

 

[Hero999]

I don't think that's expensive, the price is probably pretty reasonable.

Look at the price of commercially made vehicle tracker systems.
http://www.onlinespyshop.co.uk/product.php/768/-gps-tiny-tracker-

You might be able to buy an old satellite navigation system off ebay and hack it but at least this one comes with a full datasheet and manual.

 

[ecoo1]

Hello Electronics lab forum. This is my first post.

I plan on linking the GPS device to a GSM module via some uC (maye some ATtiny)

I think, you must use ATmega64, as a minimum. AT command and NMEA protocol processing requires a lot of RAM and flash memory.
For example, you can download complete Tracker project (based on ATmega128) from sourceforge: http://sourceforge.net/projects/gpsgsmtracker/