As with other components, specifications are only one indicator of performance. In the case of tuners, including those built into receivers, they are at the mercy of the antenna they are connected to. In fact, most tuners will not even output a signal (such as hiss) unless connected to an antenna. If you find the stock antenna provided with your component yields poor reception, here are some alternatives:

The best possible antenna is the outdoor rooftop variety. Most standard outside television antennas will double as excellent FM antennas. A signal booster may be required if there is a very long run of cable between your roof antenna and the tuner.

A more attractive and effective option over the ubiquitous wall hanging dipole antenna is the indoor antenna, some of which use small amplifiers to boost the signal. You can experiment with placement, but you will probably find best results placing the antenna near a window or outside wall. Keep in mind an amplified antenna will need to be plugged into an electrical outlet. If you have the option of using a 75 ohm coaxial connection over a 300 ohm flat lead, the 75 ohm is the better of the two.