I have talked about this issue with support and basically everything is handled by the wireless chip design (sourced), here is what the support said to me :
The Penrose dongle is not set to any specific channel, and unfortunately you cannot force it to use any one channel with our current API. The Penrose dynamically switches channels based on current wireless traffic and will switch during use, but specifics on logic for this dynamic switching are unfortunately not available.
The Penrose dongle is not set to any specific channel, and unfortunately you cannot force it to use any one channel with our current API. The Penrose dynamically switches channels based on current wireless traffic and will switch during use, but specifics on logic for this dynamic switching are unfortunately not available.