Decend Rate - ArduCopter 2.8.1

Hi Folks...

 

How do I adjust the decend rate of my Arducopter 2.8.1 for auto landing ? It comes down pretty fast.... I am scared it will crash hard on the ground... so I usually take control after a certain decend limit. I do not have a sonar and my B

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Alternate Modem for Mission Planner.

Hi Everyone,

 

I have the Feiyutech 602 data modems. These are 500mW 433Mhz Radios which are very light and provide much better and longer range than 3DR Radios (approx 10kms and more). Today, I got an idea to see if I could use these modems instead of

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