do you know and could you show me which components are for the receiver?
In the lower left of the above pic, you will find the receiver module. They compacted the entire radio into the square IC labeled "A 7105 AMR23910"
And then on the bottom-side...
The part on the lower right with the white goo on it is a trimmer inductor for tuning the receiver for a specific frequency band. The receiver IC can then switch channels within that frequency band on command so that you can operate multiple mini-z's together without having to mess around with crystals. Oh and on the upper-left is the receiver IC's local oscillator. Forgot to take the opportunity to measure that frequency, but it is the receiver IC that uses a trick called 'phase lock loop' to multiply that frequency in order to be able to demodulate the 2.4GHz carrier and extract the command information.
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