Hello,
The parameters for configuring and opening an ANT channel are network key, network number, channel type, device type, device number, transmission type, RF channel frequency. These parameters are explained in detail in the "ANT Message Protocol and Usage" document of the ANT website. Also, the document includes the sequence of commands required to configure and open an ANT channel.
As for the values of those channel parameters, it depends on the type of implementation you are developing. If you are trying to apply any of the ANT+ device profiles, then those parameters are specified in the device profile documents and you would have to comply with those parameter values. However, if your implementation is not an ANT+, then the ANT developer sets those parameter values.
I also recommend using ANTware II PC tool, which is very helpful to ANT developers. This tool allows users to be familiar with the ANT commands for configuring and opening an ANT channel. This tool is available in the "Software Tools" of the ANT website (
http://www.thisisant.com/pages/developer-zone/software-tools).