Yeah, I feel the same way. I'd go so far as to say that even being near my phone makes it harder to concentrate. If I want to meditate, I turn it off. (Not on silent, but off. I find great comfort in not being near powered-on electronics).
I have personally had more satisfaction meditating outside in fresh air near natural environment than indoor. I also know of many meditative experts who routinely visit remote areas in forests to practice deep concentration.
I would like someone to build an app to locate more favorable spot for meditation by calculating net wifi traffic in air.
It's true that we're bombarded by wireless signals. In addition, we're bombarded by all manner of noise and radiation, both terrestrial and from space. It seems a little bit foil hat to imply that you can meditate better if you turn off wifi in your subdivision, doesn't it?