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4395A
English URL
www.agilent.com/find/products
Baseband, IF Network/Spectrum/Impedance Analyzer, 10 Hz to 500 MHz/10 Hz to 500 MHz/100 kHz to 500 MHz
Network/Spectrum Analyzers
4395A Network/Spectrum/Impedance Analyzer
The 4395A provides excellent vector network, spectrum and optional
impedance measurements for audio, baseband, HF, VHF, and IF
applications. When combined with a test set, the 4395A provides
reflection measurements, such as return loss, and SWR, and S para-
meters. Gain, phase, group delay, distortion, spurious, CN ratio, and
noise measurements often required for evaluating components and
circuits can be measured using one instrument. As a vector network
analyzer, the 4395A operates from 10 Hz to 500 MHz with 1 mHz
resolution and its integrated synthesized source provides –50 to
+15 dBm of output power with 0.1 dB resolution. The dynamic mag-
nitude and phase accuracy are ±0.05 dB and ±0.3° so that it can
accurately measure gain and group delay flatness, which are becom-
ing more important in modern electronics systems.
As a spectrum analyzer, the 4395A operates from 10 Hz to
500 MHz with resolution bandwidths (RBWs) spanning 1 Hz to
1 MHz in a 1-3-10 steps. A fully-synthesized local oscillator allows
stable and accurate frequency analysis. Direct A/D conversion (no
LOG amplifier is used) results in ±0.8 dB level accuracy (@ 50 MHz,
–20 dBm). Noise sidebands fall below –110 dBc/Hz @ 100 kHz offset
from carriers, while sensitivity is –145 dBm/Hz at 10 MHz.
Extremely Fast Spectrum Measurement
The 4395A features Fast Fourier Transform (FFT) digital-signal-
processing (DSP) technique for 20 to 100 times faster narrowband
spectrum measurement than swept-tuned spectrum analyzers. The
stepped FFT is performed for all RBW settings. For example, with
100 Hz RBW and 100 kHz span, the 4395A has a sweep time of 300 ms,
while swept-tuned spectrum analyzers take a few tens of seconds. The
stepped FFT can greatly improve the efficiency of narrowband spec-
trum measurement.
Time-Gated Spectrum Analysis
With Option 4395A-1D6, the 4395A offers time-gated spectrum analy-
sis capability to capture and measure repetitive burst signals in video,
disk drives, communication equipment, and more. The minimum gate
length is 6 µ sec so that even narrow-burst signals can be analyzed.
Impedance Measurement Function
and RF Impedance Test Kit
A full-featured impedance measurement function (useful for quick-
check general-purpose impedance applications) can be added to the
4395A by adding Option 4395A-010 and the 43961A RF impedance
test kit. Covering from 100 kHz to 500 MHz, impedance parameters
|Z|,
, C, L, Q, D, and more, are directly measured and displayed on
the TFT color display. The basic impedance measurement accuracy is
3%. A 7 mm connector is mounted on this kit for easy connection to
an appropriate impedance test fixture. A wide variety of fixtures can
be used with this test kit, including the surface-mount-device (SMD)
fixtures. The Option 4395A-001 DC source is useful in applying DC
voltage to the device up to 40 V.
4395A Specifications Summary
Network Measurement
Frequency Characteristics
• Range: 10 Hz to 500 MHz
• Resolution: 1 mHz
• Accuracy: <±5.5 ppm (Option 4395A-1D5: <±0.13 ppm)
Output Characteristics
• Power Range: –50 to +15 dBm
• Resolution: 0.1 dB
• Level Accuracy: ±1.0 dB @ 0 dBm, 50 MHz
Receiver Characteristics
• Frequency Range: 10 Hz to 500 MHz
• Noise Level (referenced to full scale input level, 23 ± 5°C)
:
– –85 dB (typical) @ 10 Hz
≤
f <100 Hz, IFBW = 2 Hz
– –85 dB @ 100 Hz
≤
f <100 kHz, IFBW = 10 Hz
– (–115 + f/100 MHz) dB @ 100 kHz
≤
f, IFBW = 10 Hz
• IF Bandwidth (Hz)
:
2, 10, 30, 100, 300, 1 k, 3 k, 10 k, 30 k
• Full-vector network and spectrum measurement and analysis
• Wide dynamic range network measurement with fast
sweep speeds
• ±0.05 dB/±0.3° dynamic magnitude/phase accuracy
• Extremely fast narrowband spectrum measurement
• Impedance analysis option and test kit available
• –145 dBm/Hz sensitivity for spectrum analysis
• Built-in IBASIC for easy test automation
• Time-gated spectrum analysis option
• Color TFT display and built-in disk drive/RAM disk
4395A with 87511A
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