Equipment information

Hewlett Packard 3585B Spectrum analyzer
Hewlett Packard
Model 3585B
Date 1990
Category: Measurement instruments
Group Spectrum analyzer
                                    The 3585 is a 20 Hz to 40.1 MHz, microcomputer controlled
spectrum analyzer. It may be utilized for spectrum analysis
or network analysis (amplitude only) applications. As a
spectrum analyzer, the 3585 provides a graphic display of
the spectral components of the input signal. For network
analysis measurements, the 3585 Tracking Generator can be
used as a drive signal for the network under test. The
network’s output can then be applied to the 3585 input to
obtain a graphic display of the network’s amplitude versus
frequency response.

The 3585 is structured as a conventional triple-conversion,
swept super-heterodyne spectrum analyzer. The addition of
microcomputer hardware control and data manipulation greatly
enhances the analytical power of the 3585 . Flexible control
of the displayed trace is obtained through dedicated key
subroutines that produce optimum displayed results in a
minimum amount of time.

Microcomputer control gives the 3585 several unique
features. The most obvious feature is the keyboard entry of
parameters which replaces more conventional knobs. The input
attenuation and mixer levels are automatically set by the
3585 ’s Auto Range feature to maintain the specified dynamic
range. Other microcomputer controlled features include:
coupling of Frequency Span, Bandwidth and Sweep Time;
centering of signals; moving signals to the Reference Level
and storage and measurement of frequency and amplitude
Offsets. Microcomputer control further allows the operator
to over-ride the automatic features of the 3585 .

The 3585 ’s Local Oscillator is fully synthesized using
-hp-’s patented Fractional N technique. This provides
frequency settability of 0.1 Hz over the 20 Hz to 40.1 MHz
range. Beyond the advantage of high system resolution, the
3585 ’s Synthesized Local Oscillator allows stable,
repeatable frequency measurements. The advanced design of
the 3585 ’s Fractional N synthesized Local Oscillator also
results in phase-continuous, linear sweeps with low spurious

These manuals are available for the above equipment:

Manual Type User Manual HewlettPackard-4892-Manual-Page-1-Picture
Pages 393
Size 13.96 Mbytes (14634584 Bytes)
Language english
Manual-ID/Number 03585-90017
Date October 1990
Quality Scanned document, all readable.
Upload date
MD5 d8758e1ecebe712da4533ef5fa428532
Downloads 236 since 23 November 2013
Serials 3008A00860 and above

This Operating Manual contains information necessary to
install, operate, and test the Hewlett-Packard Model 3585
Spectrum Analyzer.

This manual is divided into four sections, each covering a
specific topic or aspect of the instrument:
Section	Topic
I	General Information
II	Installation and Interfacing
III	Front Panel and Remote Operation
IV	Performance Tests

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