产品名称：超高频数字液晶毫伏表
Product name: uhf digital LCD millivoltmeter
型号：G81558
Model: G81558
采用大规模集成电路和微处理器芯片,自动测量,数据处理功能,人性化界面
Using large scale integrated circuit and microprocessor chips, automatic measurement, data processing function, human interface
采用液晶显示屏,同时显示仪器状态和测量结果,五位有效数字高读书
Using liquid crystal display, and display instruments and measuring results, five digital high precision reading effectively
自动量程/手动量程设置,测量结果同屏显示为有效值和dBm值
Automatic range/manual Settings, with screen for RMS measurement results and dBm values
先进的双二极管检波,低噪声深度负反馈放大电路,保证测量的稳定性
Advanced double diode detection, low noise deep negative feedback amplifier circuit, ensure the stability of the measurement
Δ dB键:任意设置基准0V和0dBm,快捷测量增益,幅频特性,插入损耗,频率响应,传输系数等.
Δ dB button: any set benchmark and 0 0 v DBM, fast measurement gain and amplitude frequency characteristics, insertion loss, frequency response, transmission coefficient, etc.
自动校零功能:测量小信号,可实现仪器自动调零
Zero self-adjustment function: precise measurement of small signal, which can realize the instrument to zero
项目
project
技术性能
Technical performance
备注
note
被测电压频率范围
The voltage being measured frequency range
1KHZ-1000MHZ
1 KHZ - 1000 MHZ
5HZ-1000MHZ（选购探头）
5 hz - 1000 MHZ (probe) of choose and buy
电压测量范围
Voltage measurement range
1MV-10V （四档）
1 mv - 10 v (4)
用40dB分压器可扩展到1000V
With 40 db voltage divider can be extended to 1000 v
电平测量范围
Level measurement range
50Ω系统:-48-+33dBm（0dBm=0.224V）
50 Ω system: - 48-33 + DBM (0 DBM = 0.224 V)
75Ω系统:-50-+31dBm（0dBm=0.274V）
Ω system: 75-50 - + 31 DBM (0 DBM = 0.274 V)
电压测量固有误差
Inherent error voltage measurement
10mV: ±1.5% ±0.5mV（满度值）
10 mV: plus or minus 1.5% + / - 0.5 mV (full value)
其余各档为:±1%（满度值）
The rest of the file is: plus or minus 1% (full value)
固有频率影响误差
Natural frequency error
±3%
Plus or minus 3%
输入电容
Input capacitance
<2.5PF
< 2.5 PF
外型尺寸
Installation dimensions
240X270X88
240 x270x88
重量
The weight of the
约3KG
About 3 kg