Thanks for the reply Duncan. I have a few questions for you.

You say the chip antenna is better then the whip, why? Does the chip antenna get a longer range?

Were you able to achieve 5000 feet with ease or was that on a flat field with no obstructions?

Did the orientation of your unit matter for reliable communication?

Did you find that lower baud rates were more reliable for communication or did that not matter?

Thanks,

Chris