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unknown message codes in Response messages

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I am configuring a nordic AP2 radio and start with reset message.
I get the following back which seems correct.
A4 1 6F 20 EA

Then I set ANT key.
Received Data.
A4 3 40 0 46 0 A1 <- The 0x46 is not defined in the ANT message codes as far as I can tell.

I go on to set other channel period, frequency, etc..
A4 3 40 1 42 0 A4
A4 3 40 1 51 0 B7
A4 3 40 1 45 0 A3
A4 3 40 1 43 0 A5
A4 3 40 1 4B 0 AD

I believe these are all response messages for channel 1, but the message codes aren't covered in the ANT message and protocol usage guide.pdf. I am using a Noridic AP2 radios.

Does anyone know how to interpret these codes? I am assuming these are errors.      
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Ok so I figured it out. It was actually pretty simple. The unknown codes are not errors. They are the value of the Message ID that is being responded to. So message code 0x46 is the ANT_SetNetworkKey response. smile