Agilent E4437B
ESG-DP Series Digital RF Signal Generator, 4 GHz, Refurbished

250 kHz to 4 GHz frequency range with enhanced phase noise performance
RF modulation bandwidth up to 35 MHz
Optional dual arbitrary waveform generator and/or real-time I/Q baseband
generator
40 MHz sample rate and 14-bit I/Q resolution
1 Msample (4 MB) memory for waveform playback and 1 Msample (4 MB) memory for waveform storage
Custom digital modulation (>15 variations of FSK, MSK, PSK, and QAM),
AM, FM, phase modulation, pulse modulation, and step/list sweep (frequency and
power)