Improving radio reception
Radio broadcasting has significant advantages over listening to MP3 music tracks. The main ones are: broadcasting news, conducting interactive programs involving listeners, the ability to listen to the whole world. However, on a par with that, whatever would be used to listen to the ether, there are some problems with the accuracy of reception and the resulting interference.
However, these problems are not critical. You can effectively deal with them using different methods. The choice of method will depend on which wavelength range the interference or attenuation of the signal occurs when receiving radio transmissions.
To improve the signal in the long-wave, mid-wave and short-wave range, the manufacture of an external antenna will help. If you are not sure if the signal is good in your area, before you make sure that the model has an external antenna jack and a ground terminal.
For the manufacture of the first version of the antenna will require:
Enameled copper wire with a section of 0.3 ... 0.5 mm;
High pole to 5 ... 6 meters;
A small plank or plywood.
A plate or plywood must be fixed at one end of the pole and wound 10 ... 15 turns of copper wire on it. Run the wire down the pole and connect to the antenna jack. The higher the plate will be, the more confident the reception will be. Before turning on the receiver do not forget to connect the ground wire. Framed copper wire will provide inductive coupling to the internal antenna. All that remains for the radio amateur after turning on the radio is to tune in to the desired wave and correctly orient the home-made amplifying device.
For the second method, you need about 40 meters of enameled copper wire with a cross section of 0.3 ... 0.5 mm. He will need to be put between the house and the mast attached to a tree away from the house. Connection is similar to the first option with the mandatory use of grounding.
It is possible to improve reception in the ultrashort-wave range in a simpler way.Since the power of VHF broadcasting stations is small, and they achieve a distance of up to 60 km, you can use a decimeter TV antenna. To reduce interference and interference, the connection to the receiver must be made through a coaxial cable. In this case, the antenna itself is enough to send to the repeater.