I have an rf receiver attached to a 908qy1. When I started, I was running in normal mode (no sleep) and I had some microprocessor based noise in the rf section. Once those issues were resolved, I coded the "power reduction" scheme of waking via the auto-wakeup timer. When I did that, I can see noise spikes every time the processor wakes and goes to sleep. I assumed that these were from the transiet current draw, however, large caps to suppress any regulator lugging and a choke in the ground path did nothing to resolve. Any help on explaining A) where is the noise comming from (conducted or radiated), and B) how do I get rid of it??? Any thing I can do in software??