Anthem MRX-300 Issues

I am trying to control an Anthem MRX-300 receiver via IR, no IP or Serial capability available. I am having mixed results. Device Powers on and off but after that I can’t really get it to change inputs reliably. Any ideas? I have tried increasing the retry counts but that does not seem to change this behavior.

Another issue is after powering the receiver on you need to wait about 10-seconds before sending it any additional commands. Is there any way to delay only when the device is powering on from the Off state. For switching inputs when the device is already powered I only need a minimal delay.

Roomie 1.9 did introduce conditional power delays. That is discussed here:


Thank you.