46 Chapter 2
Agilent E4408B Specifications and Characteristics
Frequency
Agilent E4408B Specifications and
Characteristics
Specifications Supplemental Informati on
Video Bandwidth (VBW)
(–3 dB)
Range 30 Hz to 1 MHz in 1-3-10
sequence 3 MHz, characteristic
(Option 1DR) Adds 1, 3, 10 Hz for RBW’s
<1 kHz
Accuracy ±30%, characteristic
Shape Post detection, single pole low-
pass filter used to average
displayed noise
Video bandwidths below 30 Hz
are digital bandwidths with
anti-aliasing filtering.
Specifications Supplemental Informati on
Stability
Noise Sidebands
(Offset from CW signal with
1 kHz RBW, 30 Hz VBW and
sample detector)
≥1 kHz (Option 1DR) ≤ −78 dBc/Hza, typical
≥10 kHz ≤ −90 dBc/Hza≤ −94 dBc/Hza, typical
≥20 kHz ≤ −100 dBc/Hza≤ −105 dBc/Hza, typical
≥30 kHz ≤ −106 dBc/Hza≤ −112 dBc/Hza, typical
≥100 kHz ≤ −118 dBc/Hza≤ −122 dBc /Hza, typical
Residual FM
1 kHz RBW, 1 kHz VBW ≤150 Hz × N p–p in 100 ms
100 Hz RBW, 100 Hz VBW
(Option 1DR) ≤30 Hz × N p–p in 20 ms,
characteristic
System-Related Sidebands,
offset from CW signal
≥30 kHz ≤ −65 dBca
a. Add 20 Log(N) for frequencies > 6.7 GHz.