Automatic detection and alarm device for absorption load of frequency modulation broadcast multiplexer system

• Main Authors: LIANG XIUWEN, ZHU YONGQIANG, PEI CHUANMIAO, ZHAO HAIBIN, WU HONG, ZHENG XIAOBO, WANG CHUNXI, DAI WEI, LIN XUANYU, WU JINYOU, HU SHAOMING, YANG ZIYE, WU HANJUN
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention discloses an absorption load automatic detection alarm device of a frequency modulation broadcast multiplexer system, which monitors real operation parameters of an absorption load in real time, can display parameter values such as absorption power, impedance, temperature and the like through a detection alarm system, is striking and visual, and comprises a coaxial connector, a Q9 socket and the detection alarm system, the Q9 socket is arranged on the coaxial connector and is connected with an isolation resistor in the coaxial connector; the Q9 socket is connected with the detection alarm system through a radio frequency cable; due to weather changes, lightning strokes, environment temperature changes and the like, local signals of an exciter are locked by a phase-locked loop from oscillation starting and output frequency stabilization, a frequency modulation transmitting system possibly outputs a non-standard radio frequency signal in a short time, a multiplexer is in a transient detuning state