| 摘要 |
PURPOSE:To make shift with the switching operation of UHF/VHF only for the switching of a band switch to be preset, by automatically switching a VHF high and low band signal at a middle point accompanied with the rotation of a variable resistor. CONSTITUTION:A middle point 30 of a variable resistor 30 is connected to a sliding contact 38 of a switch 37 when a contact 36b of a UHF/VHF changeover switch 35 is in contact with a fixed contact V2. Ends 45 and 46 of conductors 43 and 44 of a switch 42 changing over the VHF high and low band of a control unit 12. Sliders 38 and 49 of the switches 37 and 42 are interlocked with a slider 50 of the variable resistor 30. The slider 49 is connected to a contact V1 of the switch 35 and a contact U1 alternatively selected with the contact V1 is connected to a UHF band signal receiving end of a unit 12. Contacts 36a, 36b and 36c of the switch 35 are also interlocked. |
