7058 RF Signal Generator Module
- 10MHz to 6000MHz frequency range
- 10Hz setability, +/-1ppm freq stability
- -110Bm to +7dBm amplitude
- High purity output, low phase noise
- Custom level trim: up to 100 points
- 20 character x 4 row back-lit LCD
- Remote control via RS232 or USB
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.
Frequency Frequency Range 10MHz to 6000MHz Setting Resolution 10Hz by direct keyboard entry, or in user-set increments of 10Hz to 999.999MHz by rotary control or increment–decrement keys. Display Resolution 10Hz
500MHz Carrier: <-110dBc/Hz (typ) @ 20kHz offset; <-120dBc/Hz (typ) @ 100kHz
3GHz Carrier: <-95dBc/Hz (typ) @ 20kHz offset; <-110dBc/Hz (typ) @ 100kHz offset
6GHz Carrier: <-89dBc/Hz (typ) @ 20kHz offset; <-104dBc/Hz (typ) @ 100kHz offset
Residual FM Equivalent peak deviation for 300Hz to 3.4kHz B/W: 12Hz at 500MHz carrier Settling Time <8ms to settle within 100Hz or 0.1ppm of final frequency, if greater. Reference Frequency Options Internal or External (via rear panel BNC) Internal Accuracy +/- 1 ppm over temperature range 15°C to 30°C; +/- 2 ppm over 5°C to 40°C. Internal Stability < +/-1ppm/year ageing. Internal Ref. Out 10MHz from 50 Ohms, amplitude 2V pk-pk into 50 Ohms. External Ref In 10MHz into 50 Ohms, amplitude 2V pk-pk to 5V pk-pk. Output Level Output Level Range -110dBm to +7dBm (0.1μV to 500mV into 50Ω). Setting Resolution 0.1dB (or 0.01μV to 1mV) by direct keyboard entry, or in user-set increments of 0.1dB to 100dB (or 0.01μV to 100mV) by rotary control or increment–decrement keys. Accuracy Better than ± 2dBm. Harmonics <-25dBc at +7dBm. <-30dBc@levels <=0dBm 30 to 6000MHz, <-25dBc@levels <=0dBm 10 to 30MHz Sub-Harmonics <3000MHz : None. >3000MHz :<–40dBc (typ) @ +7dBm. Non-Harmonic Spurii <–50dBc >10kHz offset 10 to 3000MHz (Note 1). <-44dBc >10kHz offset 3000MHz to 6000MHz (Note 2).
Note 1 - <-45dBc >10kHz offset 1900–2150MHz
Note 2 - <-39dBc >10kHz offset 3800–4300MHz.
Carrier Leakage <0.5μV generated into a 50Ω load by a 2 turn 25mm loop, at 25mm from the generator with output set to <-10dBm into a 50Ω sealed load. Output Impedance 50Ω Output Connector TYPE N Reverse Protection 50V DC Output Switch RF OUT on-off switch with LED for ON status. Frequency and Amplitude Step
Step frequency and/or amplitude according to a formula over a specified number of points.
Formula Specifies: Frequency start/stop. Amplitude start/stop. Dwell time at each step – programmable 0.01 to 10.000sec
Max Points: 1000
Sweep Run: Continuous or single. Sweep up or down
Step Spacing: Linear or logarithmic
Sweep Triggering: Manual, Ext. signal, timed (0.1 – 999.9sec) or via remote interface
Sync Signal: (Output Stable) available during dwell time. Programmable to be high or low
As for Step Sweep except that a user defined table of frequency, amplitude and dwell time values defines the steps. The table can be created within the instrument or downloaded via the remote interfaces.
Max Points: 1000
List Storage: Up to 16 Sweep Lists can be stored permanently within the instrument
Each point in a sweep (step or list) can be subject to a trigger event rather than a dwell time.
Point Triggering: Manual, Ext. signal or via remote interface.
Trim (User Level Compensation Tables)
A table of frequency/gain pairs allows the user to modify the generator output level with respect to frequency to calibrate an entire test set up or improve the calibration of the generator alone. The table can be created within the instrument or downloaded via the remote interfaces.
Max Points: 100
Other Inputs / Outputs
DC coupled External Trigger Input signal used for step Sweep changes in Point Trigger mode.
Input Threshold: 1.65V nominal. Trigger polarity can be set to Negative Edge or Postive Edge.
Input Protection: Maximum/minimum external applied voltage is +6V or –1V.
Rear panel output SYNC signal goes to its active state when generator output frequency & level have settled within specification after a step change during Sweep. SYNC returns to inactive state at end of specified dwell period.
Active Output Level: +5V (Active state set to ‘Pos’) or 0V (Active state set to ‘Neg’).
Output Impedance: 50 Ohm Minimum load impedance is also 50 Ohm.
Output Protection: Output will withstand accidental short circuit to ground and applied external voltages up to +5V.
Display 20 character x 4 row alphanumeric LCD Interface RS-232 and USB, full remote control facilities Data Entry Keyboard selection of of all major parameters.Value entry by character scroll using rotary control or up/down keys, or value stepping in user-selected increment values using rotary control or up/down keys Stored Settings Up to 12 complete instrument set-ups plus 16 sweep lists may be stored in non volatile memory. Module Width 295mm (primary console fitting only) PDF Downloads File Name File Size Language