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射頻毫伏表

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產品簡介

此款射頻毫伏表用于測量射頻信號的電壓值，可選擇雙通道以便測量電壓差和兩個通道的比值。測量頻率范圍10Hz~1.2GHz.

詳細介紹

此款射頻毫伏表具體參數如下：
Voltage Range 200 μV to 10 V in eight ranges
(300 V to 700 MHz with a 100:1
divider) indications to 50 μV
Voltage Display 1 mV to 300 V fs
Decibel Range (> 90 dB in eight ranges, 0.001 dB resolution)
dBmV, 0dB = 1 mV
dBV, 0dB = 1V
dBW, 0dB = 1W
dBm, 0dB =1mW
(Calculated from voltage drop across a selectable Z
Reference 5 to 2000Ω)
dBr, 0dB = any reference level
(Reference level can be selected at front panel to 0.001 dB resolution
if display range of +/-99.99 dB is not exceeded)
Frequency Range
10 kHz to 1.2 GHz with 952001A probes
10 Hz to 100 MHz with Model 952016 probe
Waveform Response
RMS to 30 mV, calibrated in the RMS of a sine wave above 30 mV
(RMS to 3V and 700 MHz with 100:1 divider)
Basic Uncertainty
Voltage level (mV) mV
3000 to 10,000 2% of reading: ±2 counts
3 to 3000 1% of reading: ±1 count
1 to 3 2% of reading: ±2 counts
0.2 to 1 3% of reading: ±3 counts

Crest Factor
Direct Input
Level 300 μV 1mV 3 mV 10 mV 30 mV
Crest Factor 140 42 14 4.1 1.4
With Divider
Level 30 mV 100 mV 300 mV 1 V 3 V
Crest Factor 140 42 14 4.2 1.4
Input Capacitance Less than 1.5 pF
Maximum AC Input 10 V, all frequencies and ranges
Maximum DC Input 200 V, all frequencies and ranges
Recorder Output
10 V fs proportional to indicated voltage in mV mode over a range
7V = 0dBm regardless of Z. in dB mode, sensitivity of 1V per 10dB
change over entire range
Line Stability
Less than 0.2% of reading with +/-10% line voltage change at reference
line conditions (115 to 120 VAC, 50 to 400 Hz)
Zero
Automatic, operated by panel key, usable after 5 minute warm-up