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The Agilent E4420A is an analog RF signal generator covering 250 kHz to 2000 MHz with 0.01 Hz frequency resolution. It produces CW and modulated signals across this span, with an output level extending from +13 dBm down to –136 dBm at lower frequencies and switching speeds of typically <35 ms with modulation off.
An analog RF signal generator supplies a known, controllable radio-frequency stimulus — a carrier that can be set precisely in frequency and amplitude and then modulated — so an engineer can drive a device under test and measure its response. It is a foundational stimulus instrument on an RF or communications bench.
ValueTronics stocks and holds its own test-and-measurement inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive, Elgin, Illinois. Every used unit is inspected and functionally verified in-house before it ships, while new units leave factory-sealed exactly as received — so buyers get instruments backed by hands-on verification on the pre-owned side and untouched factory packaging on the new side.
The test-and-measurement business behind this instrument originated at Hewlett-Packard, which spun out its measurement operations as Agilent Technologies in 1999. Agilent later transferred its electronic test-and-measurement business to Keysight Technologies in 2014.
| Specification | Value |
|---|---|
| Frequency | |
| Frequency Range | 250 kHz to 2000 MHz |
| Resolution | 0.01 Hz |
| Switching Speed, Modulation On | <45 ms, typical |
| Switching Speed, Modulation Off | <35 ms, typical |
| Accuracy | Same as timebase |
| Sweep Modes | |
| Operating modes | Step: frequency & power, and arbitrary list |
| Dwell Time | 2 ms to 60 sec |
| Number of Points | 2 to 401 |
| Internal Reference Oscillator | |
| Aging Rate (Standard, typical) | <±2 ppm/yr |
| Aging Rate (High Stability, Opt 1E5) | <±0.1 ppm/yr or <±0.0005 ppm/day after 45 days |
| Temperature (Standard) | <±1 ppm |
| Temperature (High Stability) | <±0.05 ppm, typical (0° to 55° C) |
| Line Voltage (Standard) | <±0.1 ppm (+5%, -10%) |
| Line Voltage (High Stability) | <±0.002 ppm, typical (+5%, -10%) |
| Timebase Reference Output | |
| Frequency | 10 MHz |
| Amplitude | >0.35 Vrms into 50 ohm load |
| External Reference Input | |
| Frequency | 1, 2, 5, 10 MHz ± typ. 10 ppm (Option 1E5: 1 ppm, typical) |
| Amplitude | >0.15 Vrms |
| Input Impedance | 50 ohm |
| Output | |
| Range, 250 kHz to 1000 MHz | +13 to -136 dBm |
| Range, >1000 MHz to 2000 MHz | +10 to -136 dBm |
| Resolution | 0.02 dB |
| Level Accuracy (at 23 ±5°C), +7 to -127 dBm, 250 kHz to 2 GHz | ±0.5 dB |
| Level Accuracy (at 23 ±5°C), <-127 dBm | ±1.5 dB |
| Attenuator Hold Level Range | >17 dB |
| Switching Speed | <25 ms typical |
| Switching Speed, With Power Search Mode | <210 ms typical |
| Reverse Power Protection, 250 kHz to 2000 MHz | 50 Watts; Max DC Voltage: 50 V |
| SWR (typical), 250 kHz to 2000 MHz | <1.4:1 |
| Output Impedance | 50 ohms |
| Note | Accuracy degrades by 0.02 dB/°C over full temperature range and by 0.3 dB above +7 dBm |
| Frequency Bands | |
| Band 1 | 250 kHz to <=249.999 MHz (N# 1) |
| Band 2 | >249.999 to <=500 MHz (N# 0.5) |
| Band 3 | >500 MHz to <=1 GHz (N# 1) |
| Band 4 | >1 to <=2 GHz (N# 2) |
| Spectral Purity | |
| SSB Phase Noise (typical, at 20 kHz offset) at 500 MHz | <-120 dBc/Hz |
| SSB Phase Noise at 1000 MHz | <-116 dBc/Hz |
| SSB Phase Noise at 2000 MHz | <-110 dBc/Hz |
| Residual FM (CW mode, 0.3-3 kHz BW, CCITT, rms), Phase Noise Mode 1 | |
| Residual FM, Phase Noise Mode 2 | |
| Harmonics (<=+4 dBm output level) | <-30 dBc |
| Nonharmonics (>3 kHz offset, <+7 dBm output level), 250 kHz to 1000 MHz | <-65 dBc |
| Nonharmonics, >1000 MHz to 2000 MHz | <-59 dBc |
| Subharmonics, <=1000 MHz | None |
| Subharmonics, >1000 MHz | <-40 dBc |
| Frequency Modulation | |
| Maximum Deviation | N x 10 MHz |
| Resolution | 0.1% of deviation or 1 Hz, whichever is greater |
Deviation Accuracy (1 kHz rate, dev. | <±(3.5% of FM deviation + 20 Hz) | |
| Modulation Frequency Response, FM1, 1 dB Bandwidth | dc/20 Hz to 100 kHz |
| Modulation Frequency Response, FM1, 3 dB Bandwidth, typical | dc/5 Hz to 10 MHz |
| Modulation Frequency Response, FM2, 1 dB Bandwidth | dc/20 Hz to 100 kHz |
| Modulation Frequency Response, FM2, 3 dB Bandwidth, typical | dc/5 Hz to 1 MHz |
| Distortion (1 kHz rate, THD, dev. = N x 100 kHz) | <1% |
| Phase Modulation | |
| Maximum Deviation | N x 90 radians |
| Resolution | 0.1% of set deviation |
| Deviation Accuracy (1 kHz rate) | <±(5% of deviation + 0.01 radians) |
| Modulation Frequency Response, Normal BW (N x 90 rad), PM1 | dc to 100 kHz |
| Modulation Frequency Response, Normal BW (N x 90 rad), PM2 | dc to 100 kHz |
| High BW (N x 2pi rad), PM1 | dc to 1.5 MHz (typ) |
| High BW (N x 2pi rad), PM2 | dc to 1 MHz (typ) |
| High BW (N x pi/2 rad), PM1 | dc to 4 MHz (typ) |
| High BW (N x pi/2 rad), PM2 | dc to 0.9 MHz (typ) |
Distortion (1 kHz rate, THD, dev | <1% | |
| Amplitude Modulation (fc>500 kHz) | |
| Range (envelope peak <=max specified power) | 0 to 100% |
| Resolution | 0.1% |
| Rates (3 dB Bandwidth) | dc/10 Hz to 10 kHz |
| Distortion (1 kHz rate, THD), 30% AM | <1.5% |
| Distortion, 90% AM | <4% |
| Accuracy (1 kHz rate) | <±(5% of setting + 1%) |
| Pulse Modulation | |
| On/Off Ratio, <=3 GHz | >80 dB |
| On/Off Ratio, >3 GHz | >60 dB |
| Rise/Fall Times | 150 ns, typical |
| Minimum Width (typical), ALC On | 2 µs |
| Minimum Width (typical), ALC Off | 0.4 µs |
| Pulse Repetition Frequency (typical), ALC On | 10 Hz to 250 kHz |
| Pulse Repetition Frequency (typical), ALC Off | DC to 1.0 MHz |
| Level Accuracy (relative to CW) | ±0.5 dB, typical |
| Internal Pulse Generator (Squarewave only) | |
| Squarewave Rate | 0.1 Hz to 50 kHz |
| Pulse Period | 16 µs to 30 seconds |
| Width | 8 µs to 30 seconds |
| Resolution | 4 µs |
| Internal Modulation Source | |
| Provides | FM, PM, and AM Modulation Signals and LF Out |
| Waveforms | sine, square, ramp, triangle, pulse, noise |
| Rate Range, Sine | 0.1 Hz to 50 kHz |
| Rate Range, Square, Ramp, Triangle | 0.1 Hz to 10 kHz |
| Resolution | 0.1 Hz |
| Frequency Accuracy | 0.005% |
| Swept Sine Mode (Frequency, Phase Continuous) | |
| Operating Modes | Triggered or Continuous Sweeps |
| Frequency Range | 0.1 Hz to 50 kHz |
| Sweep Time | 1 ms to 65 seconds |
| Resolution | 1 ms |
| Dual Sinewave Mode | |
| Frequency Range | 0.1 Hz to 50 kHz |
Important: Reverse power protection: 50 watts maximum; maximum DC voltage 50 V.
This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Agilent
Condition
Pre-Owned
Manufacturer
Agilent
Rf_gen_freq
250 kHz to 2000 MHz
30+ Years in Business
Secure Payments
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30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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