With all due respect, I think guys are missing the point here. Your wife presumably cares about you and wants you to come home healthy. Hunting alone in the backcountry IS cause enough for a non-hunting spouse to worry, whether we think it's legit or not. It's not something you can solve by buying a device or gun or learning to leap tall buildings. If she's your wife and you respect her concerns, you'll talk face to face with her and let her air things out. I cannot imagine doing otherwise, but I know it happens. Some guys have a tough-sh@t attitude and their wives have to put up with it. After 30+ years of marriage to my one wife, I can honestly say that I always go to her and discuss my hunts. I want her to know the risks and the rewards. Knowledge is power, and most of the time fear is wrapped around the unknown. The more she understands things...how you will be safe...the less fear she'll experience. If she says NO...I personally would not override her and go unless I put hunting above marital quality.
I just got back from a completely wilderness solo hunt in eastern Alaska. I was 95 miles from the Yukon border and a 2 week hike from any road. I was gone 8 days and totally on my own. I had a grizzly walk up on me within 2 hours of leaving the Super Cub. I dealt with all kinds of severe problems which just kept happening. My wife and I spent a lot of time discussing this trip prior to time, and she gave me her absolute confidence and approval. She was anxious, but she knows my skill level and commitment to safety always. I told her I would not go if she felt it the wrong thing to do...and she said go. I did (and do) always carry a satellite phone AND a plb. I kept in touch and she was helped by that when things got bad for me. I love the heck out of her...she's my life partner...and I'm not even close to putting a hunt above her feelings. I am always aware...painfully aware...that the consequences of what I do (if things go wrong or I screw up) reach far beyond me. The affect a lot of other people and lives would be forever changed...most likely not for the better.