YB1051A高频信号发生器是上海双旭电子有限公司生产的专业设备。其工作频率范围为100kHz～40MHz，频率显示误差为±0.1%±1个字。输出幅度范围为1V有效值，衰减0～70dB（细调衰减10dB），输出幅度误差为±1dB（当频率大于30MHz时，另加±0.5dB），输出幅度显示误差为±5%。该设备具有载波稳幅、调频、调幅功能，内调幅信号频率为400Hz、1kHz，外调幅频率范围为20Hz～10kHz。其音频频率为400Hz、1kHz，音频输出幅度最大2V有效值，音频失真度小于等于1%。YB1051A高频信号发生器输出阻抗为50Ω，外形尺寸为114H×332W×270D（mm），质量约4.5kg。目前市场参考价格为2500元左右。

The YB1051A high-frequency signal generator is a professional device produced by Shanghai Shuangxu Electronics Co., Ltd. It has a working frequency range of 100kHz to 40MHz, with a frequency display error of ±0.1%±1 digit. The output amplitude range is 1V RMS, with an attenuation of 0 to 70dB (fine attenuation of 10dB). The output amplitude error is ±1dB (an additional ±0.5dB when the frequency is greater than 30MHz), and the output amplitude display error is ±5%. The device features carrier amplitude stabilization, frequency modulation, and amplitude modulation functions. The internal amplitude modulation signal frequency is 400Hz and 1kHz, and the external amplitude modulation frequency range is 20Hz to 10kHz. The audio frequency is 400Hz and 1kHz, with a maximum audio output amplitude of 2V RMS and an audio distortion of less than or equal to 1%. The YB1051A high-frequency signal generator has an output impedance of 50Ω, with dimensions of 114H×332W×270D (mm) and a weight of approximately 4.5kg. The current market reference price is around 2500 yuan.