7058 RF Signal Generator Module

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The 7058 is a precison RF signal generator with a maximum frequency of 6GHz. It is intended for CW (carrier wave) applications where modulation is not required. Low phase noise is matched by low leakage, low residual FM and spurii. The internal timebase has a 1ppm stability, and an external frequency reference can be used for higher precision.

The output amplitude and/or frequency can be swept over the full range of each in a single sweep. The instrument can be set up to perform two types of sweep. The first sweep type is a Step Sweep in which the start and stop conditions are defined, together with the number of points in the sweep, linear or logarithmic spacing between points, and a dwell time at each point.

The other sweep type is a List Sweep in which up to 1000 points are defined in a list, with the frequency, level and dwell time specified for each point. Both types of sweep can be free run or triggered by a Sweep Trigger from a variety of sources; in addition, a Point Trigger can be defined for each individual step of the sweep. A rear panel SYNC output signal indicates when the output is stable, and can be user-programmed to be high or low.

The output level can be adjusted to correct for external equipment frequency response using the TRIM function. The TRIM function consists of a user programmable list of up to 100 amplitude adjustment /frequency pairs.

Flexible Sweep Modes
The 7058 incorporates an advanced stepped sweep system which allows both frequency and amplitude to be swept. The sweep can be defined in terms of start and stop frequency/amplitude points with linear or logarithmic interpolation between them. The total number of points can be set from 2 to 1000 and the dwell time between points can be set from 10ms up to 10s.

Sweeps can be triggered manually, from an internal timer or from the remote interfaces. If required, each point within the sweep can be stepped via a trigger event rather than a fixed time. In List Sweep mode, the sweep is defined by a table of up to 1000 frequency/amplitude points which can be stepped between either by trigger events or by an individual dwell time for each point.

This system provides the flexibility to generate changes in frequency and amplitude to match virtually any required test pattern.

Lists can be generated within the instrument, or on a PC and downloaded via the interfaces. Up to 16 user lists can be stored permanently within the instrument’s memory.

User Compensation Table (Trim)
The Trim function enables the output level to be adjusted in order to calibrate an entire test set up. The Trim function consists of a user programmable list of up to 100 amplitude adjustment /frequency pairs. When turned on, it adjusts the output level by an amount linearly interpolated between the frequencies specified in the list.

Ease of Use
The 7058 is both simple and intuitive to use. Frequency and level can be entered directly from the keyboard in whichever units are preferred. Alternatively values can be changed in user defined increments using the spin wheel or up/down keys. The four line display has soft key functionality for setting up more complex functions such as sweep lists.

Set-up and Sweep List Storage
The generator has internal storage for up to 12 complete instrument set-ups and up to 16 sweep lists. Set-ups and sweep lists can be given user defined names if required.

Full Remote Control
The 7058 incorporates full remote control using USB or RS-232, with connection via the rear of the bench console.

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