八重洲Yaesu_YC-7B_user操作说明书手册

DXG1ADT9 PLAY UN甲YC-78Amateur RadioDirectory2003.02.1122:19:38+01'00Amateur RadioFirma nonverificataDirectoryWa0动，[YA∈sUYc▣GENERALThe Yc-78 digital display unit provides remote digital displayof the operating frequency,when used with the r-78 transceiver.Interconnections to the FT-7B may be completed in seconds.INSTALLATION NOTESConnect the connection cable from the YC-7B to the EXT DIs jackon the rear of the P7B.The YC-7B may be mounted in any place where convenient,subjeetto the following precautions.Extremely hot sunshine mnay causean crratic c1spldy,and inay cause part fallure.Do not score theYC-7B in the hot sunshine for any period of time.The display maybecome erratic above 75 C,and parts may fail at any temperatureabove 1200.ws121ngau2au七ama5主1 o on a aunng3ay,s1成2aa.maga过iaarother protective cover over the YC-7B,to protect it from extremesof temperature.High SwR on the antenna feedline may cause Rf currents to causean erratic display.If your antenna SwR is below 2:1,there shouldbe no difficulty encountered.Low SwR is also essential for properoperation of your FT-7B,of course.