# Agilent 4287A 1 MHz - 3 GHz RF LCR Meter (Pre-Owned) # Agilent 4287A 1 MHz - 3 GHz RF LCR Meter (Pre-Owned) ## Key Features At A Glance - Test frequency range of 1 MHz to 3 GHz with 100 kHz resolution - Basic measurement accuracy of ±1.0% across the impedance measurement range - Measurement speed of 9 msec per point at maximum speed for high-throughput production testing - List-sweep capability with up to 32 points per sweep for multi-frequency characterization - RF I-V measurement method delivers accurate impedance measurement over a wider impedance range than network analyzers - GPIB, LAN, and opto-isolated handler interfaces standard for automated component handler integration - Built-in Rdc (DC resistance) measurement function for contact check during automated handler testing - Multi-function comparator with 13 bins and 4 limit values per bin for production sorting The Agilent 4287A is a high performance RF LCR meter designed for production line testing of devices such as SMD inductors and EMI filters, where impedance testing at high frequencies is required. The instrument covers a test frequency range of 1 MHz to 3 GHz with 100 kHz resolution and offers measurement parameters including |Z|, θz, |Y|, θy, X, G, B, Ls, Lp, Cs, Cp, Rs, Rp, Q, and D with five-digit display resolution. The 4287A uses the RF I-V measurement method, which measures the current flowing through the device under test and the voltage applied across it, enabling accurate characterization over the full 1 MHz to 3 GHz range. The 4287A is built for production line testing of RF SMD inductors and EMI filters, research and development of next-generation passive components, and reliable quality control of wireless communication equipment components. The instrument supports automated component handler integration through its opto-isolated handler interface, and the small test head with 1 m test cable extends the measurement plane to the handler stage without introducing additional error. The multi-function comparator with 13 bins and four limit values per bin supports bin sorting workflows where conditions such as frequency and measurement parameters can be set independently in each column. ## Brand Heritage Agilent Technologies was spun out of Hewlett-Packard in 1999 when HP separated its test and measurement business from its computing business. In 2014, Agilent split again, with the electronic measurement instruments business — including the 4287A product line — transferring to Keysight Technologies. Instruments carrying the Agilent brand on their front panels are part of the same engineering lineage as today's Keysight Technologies products. ## Accessories Supplied - Test head with 1 m test cable - N (m) - SMA (f) Adapter - Wrench for 3.5/SMA connector - CD-ROM (Operation manual, Programming manual and Sample Program) - Power cord ## Product Core & Specifications Parameter Specification Test frequency 1 MHz - 3 GHz with 100 kHz resolution. With list-sweep, up to 32 points per sweep is available. Impedance parameters |Z|, θz (rad), θz (deg), |Y|, θy (rad), θy (deg), X, G, B, Ls, Lp, Cs, Cp, Rs, Rp, Q, D Display resolutions 5 digits Test signal level V (open condition): 4.47 mVrms - 502 mVrms (447 mVrms when >1 GHz); I (short condition): 0.0894 mArms - 10 mArms (8.94 mArms when >1 GHz) Basic accuracy ± 1.0% Measurement range 200 mΩ to 3 kΩ (@1 MHz, accuracy ≤10%) Measurement time 9 msec per point (max. speed) Measurement terminal 3.5 mm (female) Calibration and compensation Open/short/load/low-loss capacitor calibration, fixture electrical length compensation, open/short compensation Rdc measurement function For contact check (on/off selectable) Data storage devices About 18 Gbyte internal hard disk and 1.44 Mbyte floppy disk Interface GPIB, LAN (10base-T/100base-TX automatically switched), and Opto-isolated handler interface Display 8.4 inch color LCD List sweep points Up to 256 multiple frequency points (32 points max./table × 8 tables max.) Comparator bins 13 bins, with four limit values for each bin **Important:** Maximum test signal level is 502 mVrms (447 mVrms above 1 GHz) in the open condition and 10 mArms (8.94 mArms above 1 GHz) in the short condition. Measurement accuracy is specified at the test head.**Important:** A keyboard and a mouse are required for initial setup of the 4287A (available as options 4287A-810 keyboard and 4287A-820 mouse).**Important:** Test fixture is not included with the base unit; an appropriate 7-mm test fixture (e.g., 16196A/B/C/D, 16197A, 16192A, or 16194A) must be ordered separately based on the DUT size, shape, and application.**Important:** Measurement accuracy is specified at the test head. When using a test fixture, perform open/short/load calibration with a working load standard at the measurement plane for accurate results.**Important:** Manuals are not furnished as standard for the SMD test fixture accessories. For 16196A/B/C/D, magnifying lens and tweezers are not furnished as standard.Recommended pairing: use the 16196A, 16196B, 16196C, or 16196D SMD test fixture matched to your chip size (1608 through 0402 mm) for measurements to 3 GHz, or the 16200B external DC bias adapter when applying DC bias to EMI filters up to 1 GHz. ## About this used unit - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). **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.** ## Details - **Price:** 0.0 USD - **Vendor:** Agilent - **Type:** Lcr Meter - **Tags:** Agilent, Agilent Keysight, LCR, Manufacturers, Meters & DAQ, product_manual_group_1, Product_used, Updated Item Review ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 0.00 USD | In stock | | NIST Traceable with Full Data | 0.00 USD | In stock | ## Images - 4287A Agilent LCR Meter --- > Source: [ValueTronics](https://valuetronics.com/products/4287a-agilent-lcr-meter-used) > Updated: 2026-05-30