There are ways of making sure that you’ve got better signal strength than the initial one you’re getting with your antenna. The first thing you should do is provide the antenna with the most adequate location in your home; preferably the highest point that’s practical for installation and one that’s on the exterior of your home (if you’re dealing with an outdoor antenna).  When it comes to indoor antennas, you should pretty much ensure that all of its connections are working properly and that it’s been installed as per instructions — that’s all you’ll need for a decent signal strength.  Once you’re done with this, you should try retuning and changing the aim of your outdoor antenna — there’s a good chance that its current direction is harming the signal.