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The Agilent E8257N is a fully-synthesized signal generator with high output power, low phase noise, and optional ramp sweep capability. Specifications. Frequency Range: 10 MHz to 40 GHz, 250 kHz to 40 GHz (Option 340), 250 kHz to 50 GHz (Option 550). Frequency Resolution: 0.001 Hz (CW), 0.01 Hz (All sweep modes). CW switching speed: < 11 ms (typ), 7 ms (nom). Phase offset: Adjustable in nominal 0.1° increments. Accuracy: ± [(time since last adjustment x aging rate) + temperature effects + line voltage effects + calibration accuracy]. External reference frequency: 10 MHz only. External reference lock range: ±1.0 ppm. Reference output frequency: 10 MHz. Reference output amplitude: > +4 dBm into 50 ohm load (typ). External reference input amplitude: 5 dBm ±5 dB. External reference input impedance: 50 ohm (nom). Step (digital) sweep; Operating modes Standard and Option 340: Step sweep of frequency or amplitude or both (start to stop), Option 340 only; List sweep of frequency or amplitude or both (arbitrary list). Frequency sweep: Within instrument frequency range. Dwell time: 1 ms to 60 s. Step sweep (Number of points): 2 to 65535. List sweep (Option 340 only): 2 to 1601 per table. Triggering: Auto, external, single, or GPIB. Settling time frequency: < 9 ms (typ). Settling time amplitude: < 5 ms. Output; Minimum settable output power: –105 dBm. Maximum output power: +7 dBm. Resolution: 0.01 dB.
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