I’ve just been looking at this and chatting with someone at ANT+
If you’re ok to use the ‘public’ network you probably don’t need to do anything else. If you want a closed, or private network then you need to obtain a network key.
Joining the ANT+ alliance gets you a key and access to their diagnostic software and reference designs. You need a company to do this and the developer license is $500.
There’s a seperate license if you want to embed the network key in a commercial product ($700).
Also, if you’re expecting to use sensors from another vendor (heart rate strap for example), if they’re using a private network key, you’ll need that before you can interface with them.
Purchasing the Development Kits get you access to the s/w and resources + some hardware but don’t give you a network key.
The requirements etc are described here
http://www.thisisant.com/images/Resourc … erview.pdf
I’m a bit discouraged because I bough a 24AP1 with the intention of hooking it to Suunto gear only to discover it’s a private network, but the folks at the ANT+ alliance were extremely helpful.
Hope this helps