公开(公告)号：JPH06140972A

公开(公告)日：1994-05-20

申请号：JP30929592

申请日：1992-10-23

Applicant: SONY CORP

Inventor： SUGAWARA KENICHI ,  KOYAMA MASANORI ,  TAKIZAWA TAKESHI

IPC: H04B7/26 ,  H04W24/00 ,  H04W76/02 ,  H04W84/10

Abstract: PURPOSE:To prevent crosstalk and suppression without use of a shield room by setting a channel of a frequency different from a channel preset between frequencies of each channel corresponding to the entry of an operation key or a switch. CONSTITUTION:A base set 10 is provided with a computer 44 forming a system controller and with a sender side PLL 60 and a reception side PLL 61 and each is controlled by the system controller comprising the computer 44. In this case, the sender side PLL 60 is connected to a sender side VCO 62 and the VCO 62 revises the frequency of a mixer 19. The receiver side PLL 61 revises the frequency of a VCO 39 of the receiver side circuit 30 for the sender side PLL 60. Then a channel having a frequency different from a frequency of a preset channel is set between frequencies of each channel corresponding to the operation key or switch entry.