Noise - Metrix GX1010 Notice De Fonctionnement

EDIT key followed by ARB. When ARB edit is selected the lamp beside the ARB key
flashes to show edit mode regardless of whether ARB mode is currently selected to be on
or off.
4.7.2.1. Recalling Arbitrary Waveforms
The default ARB edit menu is shown above. With the edit cursor in the store number field
each store can be stepped through in turn using the rotary control or direct keyboard entry.
Each stored waveform from ROM will have a reference name in the second line of the
display, e.g. sine x/x; the user-defined waveforms in non-volatile RAM will have the names
given by the user during the store procedure, see next section.
To recall a particular waveform select the appropriate number and press CONFIRM. Once
the waveform has been recalled into waveform memory it can be selected by pressing the
ARB key and output at the frequency, amplitude, offset and symmetry defined on the Main
menu.
4.7.2.2. Storing Arbitrary Waveforms
User defined waveforms can be downloaded into non-volatile RAM via the RS232 or GPIB
interface; details are given in the Remote Control section.
Arbitrary waveforms created from the front panel, e.g. staircase waveforms, can be saved
to non-volatile RAM using the ARB edit menu. With the edit cursor in the first edit field of
the menu, alternate presses of the DIGIT keys will switch the field between RECALL and
STORE.
Pressing CONFIRM changes the menu to permit a name to be entered for the waveform.
Turning the rotary control scrolls through all available characters in the selected digit
position; the DIGIT keys are used to move the cursor to each digit position in turn.
The display above shows the name WAVE entered; when the name is complete, pressing
CONFIRM saves the waveform and name in the specified store. A confirmation beep is
given and the display returns the menu to 'RECALL ARB No: nn', when nn is the store
number just saved.

4.7.3. Noise

The generator can be set to output pseudo-random noise within the bandwidth ·03Hz to
700kHz. To achieve this bandwidth a simple RC filter is always switched in instead of the
standard 7-stage filter, whatever the FILTER = setting is on the Options menu, see
Waveform Generation Options section. Amplitude and offset are adjustable and Noise can
be used in GATE and AM modes.
GX1010
RECALL ARB NO: 14
SINX/X
CONFIRM TO EXECUTE
STORE ARB NO: 01
CONFIRM TO EXECUTE
SAVE ARB TO STORE 01
NAME: USE DIGIT/DIAL
WAVE_
CONFIRM TO EXECUTE
II - 31