產品名稱：頻數字液晶毫伏表
Product name: uhf dial LCD millivoltmeter
型號：G81558
Model: G81558
采用大規模集成電路和微處理器芯片,自動測量,數據處理功能,人性化界面
Using large scale integrated circuit and microprocessor chips, automatic measurement, data processing function, human interface
采用液晶顯示屏,同時顯示儀器狀態和測量結果,五位數字高讀書
Using liquid crystal display, and display instruments and measuring results, five dial high precision reading effectively
自動量程/手動量程設置,測量結果同屏顯示為值和dBm值
Automatic range/manual Settings, with screen for RMS measurement results and dBm values
的雙二管檢波,低噪聲深度負反饋放大電路,測量的穩定性
Advanced double diode detection, low noise deep negative feedback amplifier circuit, ensure the stability of the measurement
Δ dB鍵:任意設置基準0V和0dBm,快捷測量增益,幅頻特性,損耗,頻率響應,傳輸系數等.
Δ dB button: any set benchmark and 0 0 v DBM, fast measurement gain and amplitude frequency characteristics, insertion loss, frequency response, tranission coefficient, etc.
自動校功能:測量小信號,可實現儀器自動調
Zero self-adjustment function: precise measurement of all signal, which can realize the instrument to zero
項目
project
技術性能
Technical performance
備注
note
被測電壓頻率范圍
The voltage being measured frequency range
1KHZ-1000MHZ
1 KHZ - 1000 MHZ
5HZ-1000MHZ（選購探頭）
5 hz - 1000 MHZ (probe) of choose and buy
電壓測量范圍
Voltage measurement range
1MV-10V （四檔）
1 mv - 10 v (4)
用40dB分壓器可擴展到1000V
With 40 db voltage divider can be extended to 1000 v
電平測量范圍
Level measurement range
50Ω系統:-48-+33dBm（0dBm=0.224V）
50 Ω system: - 48-33 + DBM (0 DBM = 0.224 V)
75Ω系統:-50-+31dBm（0dBm=0.274V）
Ω system: 75-50 - + 31 DBM (0 DBM = 0.274 V)
電壓測量固有誤差
Inherent error voltage measurement
10mV: &plun;1.5% &plun;0.5mV（滿度值）
10 mV: plus or minus 1.5% + / - 0.5 mV (full value)
其余各檔為:&plun;1%（滿度值）
The rest of the file is: plus or minus 1% (full value)
固有頻率影響誤差
Natural frequency error
&plun;3%
Plus or minus 3%
輸入電容
Input capacitance
<2.5PF
< 2.5 PF
外型尺寸
Installation dimensions
240X270X88
240 x270x88
重量
The weight of the
約3KG
About 3 kg