SF Series is an 8-in-1 complete USB-powered test instrument. SF Series includes an oscilloscope, a frequency response analyzer, a spectrum analyzer, a data recorder, an AWG function generator, a frequency and phase meter, a logic analyzer, and a pattern generator. This compact device has been developed for professionals with a limited budget. Audio and system engineers, and researchers can also benefit from the many features of the instruments. The oscilloscope offers a bandwidth of 1 GHz, and a real sampling rate of up to 250 MHz (125 MHz/channel) with an effective sampling rate of 100 GHz. The frequency response analyzer performs impedance, and both gain and phase analysis for frequencies of up to 150 Mhz with a dynamic range of better than 100 dB in the audio range. To achieve its unprecedented performance, the product uses a proprietary narrow band filter as well as an automatic range adjustment algorithm for each measurement. The AWG generates over 25 standard functions with frequencies of up to 150 MHz. Arbitrary wave-forms can also be generated with sampling rates of 1 to 100 MHz and memory depths of 1 to 64K. Its graphical editor makes generation of any signal seamless. The logic analyzer and the pattern generator of SF Series feature a complete protocol analyzer, a powerful pattern generator editor, and an intuitive interface.