COMMUNICATION REPEATER

PURPOSE: To provide a communication repeater capable of definitely obtaining high heat radiation and electromagnetic shielding effect and also assuring easy adjusting work for parts during assembling work and maintenance work with less man-hours. CONSTITUTION: This is a communication repeater constituting a communication repeater unit 30 by attaching a lid member 32 on one surface of a substrate 31 on which elements such as a power transistor Tr is mounted and also attaching a metal pedestal 33 on the other surface of a substrate 31, and also the pedestal 33 of the communication repeater unit 30 is fixed to the inner surface of a cabinet 10 through a rubber elastic sheet 61, and a shield sheet 62 consisting of conducting metal foil is provided on the surface of the elastic sheet 61 at least at the side of pedestal 33. And heat conductivity and electric conductivity are secured between the pedestal 33 and the shield sheet 62 thereby obtaining high heat radiation and reliable electromagnetic shielding effect.