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The Agilent E4418B and E4419B are EPM Series power meters for measuring average RF and microwave power. The E4418B is a single-channel instrument and the E4419B is a dual-channel instrument, and both operate with Agilent E-Series and 8480 Series average power sensors over power and frequency ranges that depend on the sensor selected. Together a meter and a compatible sensor form a calibrated average-power measurement system, with the meter automatically reading the calibration-factor data stored in the sensor and applying it to the measurement.
Application coverage spans continuous-wave (CW) and modulated signals, including wireless-standard formats such as GSM, EDGE, NADC, IDEN, cdmaOne, cdma2000, W-CDMA, Bluetooth, 802.11a/b/g, HiperLan2 and WiMAX, as well as pulse and averaged radar and navigation signals, AM/FM-profiled and mobile-radio measurements, and metrology-lab work. The sensor technology is matched to the signal type, with thermocouple sensors, diode sensors, extended-range compensated diode sensors and two-path diode-stack sensors each addressing specific measurement scenarios.
ValueTronics stocks and holds its own inventory in a 20,000 square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, which lets us ship EPM Series meters and matched sensors quickly from our own shelves. Every used unit we sell is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.
This product line carries the Agilent Technologies name. Agilent was established in 1999 when Hewlett-Packard spun out its test-and-measurement business as a separate company, and in 2014 that electronic-measurement business was renamed Keysight Technologies.
The EPM Series is built around two power meters that share a common measurement architecture and sensor compatibility: the single-channel E4418B and the dual-channel E4419B. Both read calibration-factor data directly from Agilent E-Series and 8480 Series average power sensors and cover the same sensor-dependent frequency and power ranges, so the choice between them is driven primarily by how many measurement channels the application requires.
Because the two meters use the same internal power reference, the same averaging and resolution settings and the same SCPI-based remote interfaces, a measurement workflow developed on one transfers directly to the other, with the dual-channel model adding simultaneous two-channel display and ratio/difference measurements.
Each pre-owned model below is listed as its own dedicated product page with condition-matched pricing. Select the channel configuration that fits your bench, then choose the pre-owned unit that matches your budget and availability requirements.
The principal difference between the two models is channel count: the E4418B measures a single channel, while the E4419B measures two channels and can simultaneously display combinations such as A, B, A/B, B/A, A-B and B-A. The E4419B also provides dedicated channel-A and channel-B recorder outputs on the rear panel.
Remote-programming compatibility differs as well: the E4418B is 436A and 437B code compatible, while the E4419B is 438A code compatible, with both using SCPI as the standard command set. Measurement speed also reflects the channel count, with the single-channel E4418B reaching a typical maximum of 200 readings/second in Fast mode and the dual-channel E4419B reaching approximately 100 readings/second with both channels in Fast mode. The comparison table below summarizes these per-model differences.
| Model | Channels | Max Measurement Speed | GPIB Code Compatibility |
|---|---|---|---|
| E4418B | 1 | 200 readings/second (Fast mode) | 436A/437B |
| E4419B | 2 | 100 readings/second (both channels Fast mode) | 438A |
| E4419B | 2 | 100 readings/second (both channels Fast mode) | 438A |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Specification | Value |
|---|---|
| Frequency and Power | |
| Frequency range | 9 kHz to 110 GHz, sensor dependent |
| Power range | –70 dBm to +44 dBm (100 pW to 25 W), sensor dependent |
| Single sensor dynamic range | 90 dB maximum (E-Series sensors); 50 dB maximum (8480 Series sensors); 55 dB maximum (N8480 Series sensors) |
| Display units, absolute | Watts or dBm |
| Display units, relative | Percent or dB |
| Accuracy | |
| Absolute | ±0.02 dB (log) or ±0.5% (linear) |
| Relative accuracy | ±0.04 dB (log) or ±1.0% (linear) |
| Measurement noise calculation | (<45 pW x 2.75) = <121 pW |
| Resolution | |
| Display resolution | Selectable resolution of 1.0, 0.1, 0.01, and 0.001 dB in Log mode, or 1 to 4 digits in linear mode |
| Default resolution | 0.01 dB in log mode, 3 digits in linear mode |
| Power Reference | |
| Power output | 1.00 mW (0.0 dBm) |
| Factory set | ±0.4% traceable to the National Physical Laboratory (NPL), UK |
| Accuracy (for two years) | ±0.5% (23 ± 3 °C); ±0.6% (25 ± 10 °C); ±0.9% (0 to 55 °C) |
| Frequency | 50 MHz nominal |
| SWR | 1.06 maximum (1.08 maximum for Option 003) |
| Connector type | Type-N (f), 50 Ω |
| Measurement Speed (over GPIB, typical maximum) | |
| E4418B – Normal | 20 readings/second |
| E4418B – x2 | 40 readings/second |
| E4418B – Fast | 200 readings/second |
| E4419B – both channels in Fast mode | 100 readings/second (typical maximum) |
| Fast mode | For E-Series sensors only; maximum measurement speed obtained using binary output and free run trigger mode |
| Power Meter Functions | |
| Cal / reference cal factor | Settable from 1% to 150%, in 0.1% increments |
| Frequency entry range | 1 kHz to 999.9 GHz, settable in 1-kHz steps |
| Cal factor | 1% to 150%, in increments of 0.1% |
| Offset | –100 dB to +100 dB, settable in 0.001-dB increments |
| Save/recall | Store up to 10 instrument states |
| Filter (averaging) | Selectable from 1 to 1024; auto-averaging provides automatic noise compensation |
| Effects of averaging on noise | Averaging over 1 to 1024 readings is available for reducing noise |
| Duty cycle | 0.001% to 99.999%, in increments of 0.001% |
| Limits | High and low limits settable in the range –150 dBm to +230 dBm, in 0.001-dBm increments |
| Rear Panel Connectors | |
| Recorder outputs | Analog 0 to 1-Volt, 1-kΩ output impedance, BNC connector (E4419B recorder outputs are dedicated to channel A and channel B) |
| Remote input/output | RJ-45 series shielded modular jack assembly connector; TTL Output: high = 4.8 V max, low = 0.2 V max; TTL Input: high = 3.5 V min, 5 V max, low = 1 V max, –0.3 V min |
| GPIB | Allows communication with an external controller |
| RS-232/422 | Male/plug 9 position D-subminiature connector |
| Ground | Binding post, accepts 4-mm plug or bare-wire connection |
| Line Power | |
| Input voltage range | 85 to 264 VAC, automatic selection |
| Input frequency range | 50 to 440 Hz |
| Power requirement | Approximately 50 VA (14 W) |
| Remote Programming | |
| Interface | GPIB interface operates to IEEE 488.2; RS-232 and RS-422 serial interface supplied as standard |
| Command language | SCPI standard interface commands; 436A and 437B code compatible (E4418B only); 438A code compatible (E4419B only) |
| GPIB compatibility | SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP1, DC1, DT1, C0 |
| Battery | |
| Battery type | Lithium polycarbon monoflouride, approximate lifetime 5 years at 25 °C |
| Environmental (Operating) | |
| Temperature | 0 °C to 55 °C |
| Maximum humidity | 95% at 40 °C (non-condensing) |
| Minimum humidity | 15% at 40 °C (non-condensing) |
| Maximum altitude | 3000 meters (9840 feet) |
| Storage Conditions | |
| Storage temperature | –20 °C to +70 °C |
| Non-operating maximum humidity | 90% at 65 °C (non-condensing) |
| Non-operating maximum altitude | 15240 meters (50,000 feet) |
| Safety and EMC | |
| Safety | EN61010-1: 1993/IEC 1010-1: 1990 +A1/CSA C22.2 No. 1010-1: 1993; EN60825-1: 1994/IEC 825-1: 1993 Class 1; Low Voltage Directive 72/23/EEC |
| EMC | Complies with the EMC Directive 89/336/EEC; Generic Immunity Standard EN 50082-1: 1992; Radiated Interference Standard EN 55011: 1991/CISPR11:1990, Group 1 - Class A |
| Dimensions and Weight | |
| Dimensions (exclude front and rear protrusions) | 212.6 mm W x 88.5 mm H x 348.3 mm D (8.5 in x 3.5 in x 13.7 in) |
| Net weight, E4418B | 4.0 kg (8.8 lb) |
| Shipping weight, E4418B | 7.9 kg (17.4 lb) |
| Net weight, E4419B | 4.1 kg (9.0 lb) |
| Shipping weight, E4419B | 8.0 kg (17.6 lb) |
Important: Fast measurement-speed mode is available only with E-Series power sensors.
Important: Specifications describe the instrument's warranted performance and apply after a 30-minute warm-up, are valid over the operating/environmental range unless otherwise stated, and apply after performing a zero and calibration procedure.
Important: Power sensors are not included with the power meter and must be ordered separately. The EPM Series meters operate with Agilent E4410 and E9300 E-Series, 8480 Series, and N8480 Series average power sensors selected for the required frequency and power range.
Important: For Option E441XB-001, the 36-month warranty does not apply to the E9287A battery pack.
Recommended pairing: operate this meter with Agilent E4410/E9300 E-Series or 8480 Series average power sensors, connected using the 11730-series power sensor cables listed in the ordering information.
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
11683A Agilent Calibrator Used
11683A
11730C Agilent Cable Used
11730C
11730B Agilent Cable Used
11730B
11730A Agilent Cable Used
11730A
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