# Tracking Generators

A sweep generator is a tool engineers use to generate sinusoidal outputs while testing electronic equipment. The output will automatically have its frequency varied or swept between frequencies. A “sweep” is one complete cycle of a frequency variation. Engineers use sweep signal generators as test equipment, mostly to measure responses of filters, amplifiers, and electrical components. The tool displays the response clearly on an oscilloscope or X-Y recorder. Save money by shopping used and refurbished sweep generators at ValueTronics.com.

## Products in this collection

- [HP 85644A 300 kHz to 6.5 GHz Tracking Source (Pre-Owned)](https://valuetronics.com/products/85644a-agilent-tracking-generator-used) - 0.0 USD
- [3570A Agilent Tracking Generator Used](https://valuetronics.com/products/3570a-agilent-tracking-generator-used) - 0.0 USD
- [TR501 Tektronix Tracking Generator Used](https://valuetronics.com/products/tr501-tektronix-tracking-generator-used) - 0.0 USD
- [8443A Agilent Tracking Generator Used](https://valuetronics.com/products/8443a-agilent-tracking-generator-used) - 0.0 USD
- [HP 85640A Tracking Generator for HP 8560 Series Spectrum Analyzers (Pre-Owned)](https://valuetronics.com/products/85640a-agilent-tracking-generator-used) - 9500.0 USD
- [70301A Agilent Tracking Generator Used](https://valuetronics.com/products/70301a-agilent-tracking-generator-used) - 0.0 USD
- [70300A Agilent Tracking Generator Used](https://valuetronics.com/products/70300a-agilent-tracking-generator-used) - 0.0 USD

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> Source: [ValueTronics](https://valuetronics.com/collections/signal-generators-tracking)
> Updated: 2026-06-03