I wouldn't try this, you might end up insulating the receiver and causing heat problems. Heat might be causing the problems too.
Yeah, I thought about that after I posted. Still a couple of the jel-filled wrist wrests under the legs would be great shock absorbers. In making the recommendation I was thinking about the fellow who was a full-time RV'er and having repeat problems, getting replacement DVRs only to have the problems show up again. Back 20 years (or more) ago there was a command to PARK the hard drive on your computer before shutdown. Then drives got better and didn't need to be parked, so who knows.
In my own case I've not had the problem with signal output
loss from my 722 in the past 3 or 4 days. Hoping the problem is gone and stays gone. I really hate having to call then wait all day for the guy to show up.