The Agilent E4400B RF signal generator delivers outstanding performance, offering high quality, reliability, and worldwide support at a very competitive price. As the first of a new generation of signal generators, it provides exceptional frequency and level control, along with extensive analog modulation capabilities. It is the ideal instrument for today's demanding receiver testing, component testing, and local oscillator applications.
Features:
Flexible architecture with upgrade paths via options
Choice of electronic or mechanical attenuator
Excellent level accuracy
Wideband FM and phase modulation, AM and pulse modulation
Step sweep (frequency, power, and list)

Frequency range 3Hz-26.5GHz
TOI 16dBm(0.3-2GHz), 17dBm(2-2.7GHz), 16dBm(2.7-3GHz), 15dBm(3-6GHz), 9dBm(6-26.5GHz)
Displayed average noise level -153dBm(10MHz-3GHz), -152dBm(3-6.6GHz), -150dBm(6.6-13.2GHz), -147dBm(13.2GHz-22GHz), and -141dBm(22-26
Phase noise ≤1GHz -100dBc/Hz(1kHz offset), -113dBc/Hz(10kHz offset), -119dBc/Hz(100kHz offset)
Absolute frequency response +/-0.4dB-3GHz, +/-2.0dB-22GHz
Log fidelity error ±0.07dB(referenced to -20dBm noise)
Sweep time 1ms-2000s(zero span 1μs-6000s)
Trigger Free-run trigger, video trigger, line trigger, external trigger (front and rear panel)
Input +30dBm maximum(50Ω)
Input VSWR(10dB attenuation) 1.2:1<3GHz, 1.6:1<18GHz, 1.9:1, <26.5GHz
Resolution bandwidth 1Hz-3MHz in 10% steps, 4,5,6 and 8MHz
Preamplifier gain and noise figure 30dB gain, 6dB noise figure (rated), (Option IDS