| 摘要 |
PROBLEM TO BE SOLVED: To easily install a reception antenna in an optimum reception state. SOLUTION: An entry menu generating means 2 generates a menu to allow a user to select a received broadcast radio wave and a menu to allow the user to enter various items (local oscillating frequency of a converter or the like) of a reception antenna to be installed and allows a display means 1 to display the menus. An entry information memory 4 stores in advance entry menu use data and stores information entered by an entry means 3. A reception control means 5 sequentially selects a set received broadcast radio wave and a reception means 6 selects and receives a reception antenna output signal of the received broadcast radio wave sequentially selected by the reception control means 5. A reception level detection means 7 detects a level of the signal selectively received and allows a reception level memory 8 to store it. An adjustment instruction menu generating means 9 generates an adjustment instruction menu to adjust and instruct the reception antenna so that the reception level of each reception broadcast radio wave is close to an optimum value on the basis of the reception level stored in the reception level memory 8 and allows the display means 1 to display the menu. |
