3585A

Uncompromising Baseband Signal Analysis
The HP 3585A Spectrum Analyzer delivers high performance where it counts - at baseband frequencies. With unmatched accuracy, resolution, and dynamic range, the 3585A is HPs best solution for signal analysis at the critical frequencies comprising voice, picture, or digital information.

In todays high speed, high density information processing systems, maintaining the integrity of data signals requires more neasurement performance than ever before. The 3585A provides 80dB of spuriousfree dynamic range, a sharp 3 Hz resolution bandwidth, and fully synthesized tuning. Its 20 Hz - 40.1 MHz frequency range is more than adequate to cover most information bandwidths

Measuremente performance is critically important at baseband frequencies, because signal degradation occurring here is typically not recoverable elsewhere in the system. As a result, teste requeriments for baseband signals and circuits often demand a level of performance that only a high-performance, low-frequency signal analyzer such as the HP 3585A can provide

Inside the HP 3585A
The HP 3585A is a swept hetrodyne, triple conversion circuit with several major improvements. Frequency tuning is accomplished by a fully synthesized, phase continuos local oscillator, assuring excellent frequency stability for narrowband analysis across the entire frequency range. Internal microprocessors manage several functions including front panel operation, 1001-point digital vector storage display, and periodic calibration of amplitude and frequency offsets. An accurate internal narrowband frequency counter can discriminate between the frequencies of closely spaced sinusoids with 0.1 Hz resolution. Finally, the HP 3585A contains fast-settling narrow resolution bandwidth filters that are among the best in the industry.