If reception is poor when using only the radio's in-built antenna, then try using a different antenna. Use a 4 to 5 meter length of vinyl-coated wire. Wrap one end around the radio's antenna. Attach a weight to the other end and hang it outside your building. If the reception quality deteriorates progressively while you are listening to a broadcast, frequency or walt for a while.
Reception can be poor inside a ferro-concrete apartment block, hotel etc.
Listen beside a window or turn the radio to left and right to find the best orientation. Don't place the radio near a TV set, fluorscent light, refrigeator, computer etc.while listening. Reception is liable to disruption by interference during daylight hours. Listen in the evening or at night if possible.