Example code for rfm69hw or similar rfm69 module?

I'm about to start tinkering with the rfm69hw, and was wondering if anyone has some example code? The application is to send GPS data from up to 1/3 mile away in wide-open terrain.

I'm also open to using a different chip that has a similar range (or better) if there's a lot more code examples (and it's not too pricey; I have 3 kids so I'm cheap!).

Thanks in advance for any help!
Dave

You may want to consider the RFM95W radio module. It is a LoRa, long range transceiver using spread spectrum modulation. You can easily get the range you are looking for. Works best at low data rates. I use it with PIC 12F1822 micros and can offer code examples if you're interested.

Also, if you search this site you will find some very complete code posted by member prstein for use with the RFM22. My code borrows quite a bit from his, for which I am grateful.