# Signal Analyzers Engineers use signal analyzers to combine the capabilities of spectrum and vector signal analyzers. A signal analyzer is a piece of electronic test equipment that takes measurements of power, magnitude, distortion, phase noise, modulation, and demodulation quality of input signals. Modern signal analyzers use digital techniques to monitor and extract useful information that the electrical signal carries. With the right software, a used or refurbished signal analyzer can measure virtually any aspect of an electrical signal. ## Products in this collection - [Agilent N9020A MXA Signal Analyzer, 20 Hz to 3.6 GHz (Option 503) (Pre-Owned)](https://valuetronics.com/products/n9020a-agilent-analyzer-used) - 9995.0 USD - [HP 3561A Single Channel Dynamic Signal Analyzer 0.000125 Hz to 100 kHz (Pre-Owned)](https://valuetronics.com/products/3561a-agilent-signal-analyzer-used) - 0.0 USD - [HP 3562A Dynamic Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/3562a-agilent-signal-analyzer-used) - 0.0 USD - [SHA851A Siglent Signal Analyzer New](https://valuetronics.com/products/sha851a-siglent-signal-analyzer-new) - 5589.0 USD - [Agilent N9010A Analyzer](https://valuetronics.com/products/agilent-n9010a-analyzer_186239369705_) - 7995.0 USD - [Keysight N9030B PXA Signal Analyzer, up to 50 GHz (Pre-Owned)](https://valuetronics.com/products/n9030b-agilent-signal-analyzer-used) - 0.0 USD - [Agilent 35665A 2-Channel DC to 102.4 kHz Dynamic Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/35665a-agilent-signal-analyzer-used) - 0.0 USD - [Anritsu MS2692A 26.5 GHz Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/ms2692a-anritsu-signal-analyzer-used) - 0.0 USD - [Agilent N9030A PXA X-Series Signal Analyzer, 3 Hz to 3.6 GHz (Option 503) (Pre-Owned)](https://valuetronics.com/products/n9030a-agilent-signal-analyzer-used) - 0.0 USD - [Agilent 35670A Dynamic Signal Analyzer, 122 µHz to 102.4 kHz, 2- or 4-Channel FFT-Based Spectrum/Network Analyzer (Pre-Owned)](https://valuetronics.com/products/35670a-agilent-signal-analyzer-used) - 0.0 USD - [Keysight N9021B MXA Signal Analyzer, up to 50 GHz (Pre-Owned)](https://valuetronics.com/products/n9021b-keysight-signal-analyzer-used) - 0.0 USD - [Keysight N9041B UXA Signal Analyzer, up to 110 GHz (Pre-Owned)](https://valuetronics.com/products/n9041b-keysight-spectrum-analyzer-used) - 0.0 USD - [SHA852A Siglent Signal Analyzer New](https://valuetronics.com/products/sha852a-siglent-signal-analyzer-new) - 8798.0 USD - [SVA1075X Siglent Signal Analyzer Used](https://valuetronics.com/products/sva1075x-siglent-signal-analyzer-used) - 0.0 USD - [N7109A Agilent Signal Analyzer Used](https://valuetronics.com/products/n7109a-agilent-signal-analyzer-used) - 0.0 USD - [ETL Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/etl-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [FSW85 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsw85-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [Anritsu MP1900A Signal Quality Analyzer-R Mainframe (Pre-Owned)](https://valuetronics.com/products/mp1900a-anritsu-signal-analyzer-used) - 0.0 USD - [MS2850A Anritsu Signal Analyzer Used](https://valuetronics.com/products/ms2850a-anritsu-signal-analyzer-used) - 0.0 USD - [Keysight N9010B EXA X-Series Multi-touch Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/n9010b-agilent-spectrum-analyzer-used) - 0.0 USD - [Keysight N9000B CXA Signal Analyzer, up to 26.5 GHz (Pre-Owned)](https://valuetronics.com/products/n9000b-agilent-spectrum-analyzer-used) - 0.0 USD - [Keysight N9020B MXA Signal Analyzer, up to 50 GHz (Pre-Owned)](https://valuetronics.com/products/n9020b-agilent-signal-analyzer-used) - 0.0 USD - [Keysight N9040B UXA Signal Analyzer, up to 50 GHz (Pre-Owned)](https://valuetronics.com/products/n9040b-agilent-spectrum-analyzer-used) - 0.0 USD - [MS2830A Anritsu Signal Analyzer Used](https://valuetronics.com/products/ms2830a-anritsu-signal-analyzer-used) - 0.0 USD - [N9029AV15 Agilent Signal Analyzer Extension Module Used](https://valuetronics.com/products/n9029av15-agilent-signal-analyzer-extension-module-used) - 0.0 USD - [RSA6120B Tektronix Signal Analyzer Used](https://valuetronics.com/products/rsa6120b-tektronix-signal-analyzer-used) - 0.0 USD - [Anritsu MP1800A Signal Quality Analyzer Mainframe (Pre-Owned)](https://valuetronics.com/products/mp1800a-anritsu-signal-analyzer-used) - 0.0 USD - [FSQ40 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsq40-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [FSW26 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsw26-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [FSW67 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsw67-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [FSW13 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsw13-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [Anritsu MS2691A 13.5 GHz Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/ms2691a-anritsu-signal-analyzer-used) - 0.0 USD - [FSQ8 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsq8-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [Agilent N9010A 3.6 GHz EXA Signal Analyzer, Option 503 (9 kHz to 3.6 GHz) (Pre-Owned)](https://valuetronics.com/products/n9010a-agilent-analyzer-used) - 4495.0 USD - [DSA602A Tektronix Signal Analyzer Used](https://valuetronics.com/products/dsa602a-tektronix-signal-analyzer-used) - 0.0 USD - [4352B Agilent Signal Analyzer Used](https://valuetronics.com/products/4352b-agilent-signal-analyzer-used) - 0.0 USD - [SR780 Stanford Research Signal Analyzer Used](https://valuetronics.com/products/sr780-stanford-research-signal-analyzer-used) - 0.0 USD - [FSW8 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsw8-rohde-schwarz-signal-analyzer-used) - 0.0 USD - [3560A Agilent Signal Analyzer Used](https://valuetronics.com/products/3560a-agilent-signal-analyzer-used) - 0.0 USD - [SR785 Stanford Research Signal Analyzer Used](https://valuetronics.com/products/sr785-stanford-research-signal-analyzer-used) - 0.0 USD - [Anritsu MS2690A 6 GHz Signal Analyzer (Pre-Owned)](https://valuetronics.com/products/ms2690a-anritsu-signal-analyzer-used) - 0.0 USD - [3569A Agilent Signal Analyzer Used](https://valuetronics.com/products/3569a-agilent-signal-analyzer-used) - 0.0 USD - [35660A Agilent Signal Analyzer Used](https://valuetronics.com/products/35660a-agilent-signal-analyzer-used) - 0.0 USD - [FSQ26 Rohde & Schwarz Signal Analyzer Used](https://valuetronics.com/products/fsq26-rohde-schwarz-signal-analyzer-used) - 0.0 USD --- > Source: [ValueTronics](https://valuetronics.com/collections/analyzers-signal) > Updated: 2026-06-03