The 8657B offers excellent performance at an economical price. The low residual FM and excellent phase noise performance of these signal generators make them ideal for many in-channel and even out-of-channel receiver tests. The 8657B is a versatile signal generator offering a variety of features, such as simultaneous and mixed modulation combinations of AM and FM, as well as a carrier phase adjust capability that allows you to characterize phase-sensitive devices. In addition, the 8657B offers a wide output range, +13 to -143.5 dBm, with superior level accuracy of ±1.0 dB. Built for reliability, the 8657B uses an all-electronic attenuator to ensure that you will make consistent, repeatable measurements every time.

• 0.1 to 2060 MHz, 1 Hz resolution
• ±1 dB level accuracy and 0.1 dB resolution
• Calibrated output +13 to -143.5 dBm using an all-electronic attenuator
• Simultaneous and mixed AM/FM modulation modes from internal (400 Hz and 1 kHz tones) and external sources
• GPIB