The Agilent E8257D is a fully synthesized signal generator with high output power, low phase noise, and optional ramp sweep capability. Generate continuous wave (CW) signals for LO substitution or swept stimulus response analysis. Optionally add AM, FM, phaseM and/or pulse modulation to accurately characterize RF and microwave components and devices. Key Features and Specifications. Signal characteristics; 100 kHz to 20, 31.8, 40, 50 or 67 GHz, operational to 70 GHz (.001 Hz resolution), and 10 MHz to 20 GHz (Option 521 only). Extendable to 75, 90, 110, 140, 170, 220, 325, or 500 GHz - Millimeter-wave source modules. +26 dBm @ 20 GHz, +17 dBm @ 40 GHz, +14 dBm @ 67 GHz output power, >+30 dBm @ 6 GHz with Option 521. SSB phase noise with Option UNY: -143 dBc/Hz (typ) for a 1 GHz signal at 10 kHz offset. Modulation; AM, FM, phaseM, pulse, and scan. Typical 6 ns rise/fall times and 20 ns pulse width. Dual internal function generators: sine, square, triangular, ramp, and noise. Sweep; Step, list, and ramp sweep (frequency and power). Source control using PSA Series Option 215. Agilent 8757D scalar network analyzer code compatible. Automation and communication interface; 10BaseT LAN and GPIB. SCPI and IVI-COM drivers. Backwards compatible with all PSG signal generators. Options. 007, Analog ramp sweep. 008, 8 GB Removable flash memory. 520, Frequency range from 250 kHz to 20 GHz. 521, Ultra-high output power model (Frequency range from 10 MHz to 20 GHz). 532, Frequency range from 250 kHz to 31.8 GHz. 540, Frequency range from 250 kHz to 40 GHz. 550, Frequency range from 250 kHz to 50 GHz. 567, Frequency range from 250 kHz to 67 GHz. UNT, AM, FM, phase modulation, and LF output. UNU, Pulse modulation. UNW, Narrow pulse modulation. UNX, Ultra-low phase noise frequency (offsets ranging from 1 Hz to 10 kHz). UNY, Enhanced ultra-low phase noise. 1E1, Step attenuator. 1ED, Type-N (f) RF output connector (Option 520 and 521 only). 1EH, Improved harmonics below 2 GHz (low-pass filters standard with Option 521). 1EM, Moves all front panel connectors to the rear panel. 1EU, High output power (standard with Option 521). 1SM, Scan modulation (Option 520 only). C09, Move all front panel connectors to the rear panel except for the RF output connector.