4395A 参数 Datasheet PDF下载

Spectrum Measurement

Frequency characteristics

Frequency range

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hz to 500 MHz

Frequency readout accuracy

SPAN[Hz]

. . . . . . . . ±((freq

readout[Hz])

x (freq

ref accuracy[1])

+

RBW[Hz]

+

)) [Hz]

NOP-1

where NOP means number of display points

Frequency reference (Option 4395A-800)

Accuracy

at 23 °C ± 5 °C, referenced to 23 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±5.5 ppm

Aging

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±2.5 ppm/year (SPC)

Initial achievable accuracy

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ± 1.0 ppm (SPC)

Temperature stability

at 23 °C ± 5 °C, referenced to 23 °C . . . . . . . . . . . . . . . . . . . . . . . . < ±2 ppm (SPC)

Precision frequency reference (Option 4395A-1D5)

Accuracy

at 0 °C to 40 °C, referenced to 23 °C . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.13 ppm

Aging

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.l ppm/year (SPC)

Initial achievable accuracy

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.02 ppm (SPC)

Temperature stability

at 0 °C to 40 °C, referenced to 23 °C . . . . . . . . . . . . . . . . . . . . . . . < ±0.01 ppm (SPC)

Resolution bandwidth (RBW)

Range

3 dB RBW at span > 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hz to 1 MHz, 1-3 step

3 dB RBW at span = 0

. . . . . . . . . .3 k, 5 k, 10 k, 20 k, 40 k, 100 k, 200 k, 400 k, 800 k, 1.5 M, 3 M, 5 MHz

Selectivity

(60 dB BW/3 dB BW)

at span > 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 3

Mode

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto or manual

Accuracy

at span > 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±10%

at span = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±30%

Video bandwidth (VBW)

Range

at span > 0 . . . . . . . . . . . . . . . 3 mHz to 3 MHz, 1-3 step, 0.003 ≤ VBW/RBW ≤ 1

Noise sidebands

(Carrier Frequency: 10 MHz, 100 MHz, 500 MHz)

Offset from carrier

Noise sidebands

≥ 1 kHz

< –97 dBc/Hz

≥ 100 kHz

< –110 dBc/Hz

Noise sideband (dBc/Hz)

Frequency offset (Hz)

Figure 1-3. Noise sidebands

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