Anywhere on earth. Most people don't understand this. Though it isn't the greatest to be living next to a transformer either you really don't want to be living next to a Microwave Node on a telephone pole because it will harm the health of anyone nearby in the same way (but slightly less) than if you live next to a full microwave tower. It is actually better to make cell phone calls through something like What's App through your WIFI and much less damaging to your health than to have a Microwave node anywhere near where you live or your children or grandchildren live. After researching this through many knowledgeable people so far I'm finding out that preventing microwave nodes on telephone poles is important before they put them in because getting them removed afterwards might be difficult to impossible and then you are going to have to sell your home at a loss to prevent health problems afterwards by moving away.
Microwave Nodes are used for Cell phone service in areas where they don't have or can't put up full microwave towers for one reason or another. Presently in this day and age they look a little like transformers but that likely will change through microminiaturization over time.
Here are some pictures of what they presently look like: