Advanced Meters should not adversely affect the stability or performance of home wireless networks. The Federal Communications Commission (FCC) regulates all electronics to prevent one type of electronic equipment from interfering with other electronic and wireless devices that operate in the same frequency band.
Here is what the American Cancer Society website says about medical devices: “One concern expressed is that the radio frequency (RF) waves produced by smart meters might interfere with electronic medical devices such as a heart pacemaker. A study that examined the effect of smart meters on pacemakers and implantable defibrillators found that the smart meters did not interfere with these devices.” More information can be found by visiting the American Cancer Society Website FAQ page for Smart Meters page.