Well Yes you can improve the reception, please follow the below steps -
Improve FM Radio Reception -
1. If you don't have an antenna connected to your FM receiver, purchase a simple dipole antenna--a simple T-shape flexible wire-- and connect it to the FM antenna inputs on the receiver. Because FM signals are directional, you'll want to experiment with the positioning of the wire to find the best reception of the station you're trying to receive.
2. If you're still not getting a good signal, try an indoor amplified antenna, which you'll find at an electronics store. Don't buy one unless you get a guarantee that you can return it for full credit if it doesn't solve your reception problems.
3. If your signal is weak because you live a long way from the transmitter, install an outside antenna and mount it as high as is practical. If you're primarily interested in getting signals from one station or from a group of stations in one direction, get a directional antenna and point it toward the transmitters.
4. If you're using a portable FM radio where the only antenna is the power cord, stretch the cord as straight as possible and experiment with positioning again.
5. Temporarily switch to monaural mode to improve a weak signal on an FM receiver.
Improve AM Reception -
1. Gradually rotate the radio 360 degrees. Leave it in the position where it sounds best.
2. Reverse the AC plug if it isn't polarized. (If you can flip the plug over, then it's non-polarized.)
3. Plug the radio into a different AC outlet.
4. Move the radio closer to a window.
5. Experiment to learn if appliances and powered products in your home are causing interference: computer monitor, television, electric blanket, light dimmer, fluorescent light, hair dryer, air conditioner, smoke detector. If possible, turn off the offending item. Otherwise, move the radio to another room.
6. Upgrade to an external antenna if your receiver, tuner or radio has a place to connect one.
7. Buy a passive AM antenna that doesn't need to be connected to a radio or receiver.