33220A MANUAL PDF
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Chapter 4 Remote Interface Reference Simplified Programming Overview Simplified Programming Overview This section gives an overview of the basic techniques used to program the function generator over the remote interface. Press the Create New softkey to start the waveform editor. To set the output frequency, press the Freq softkey for the selected function. In the normal mode defaultthe waveform goes positive during the first part of the cycle.
Select an internal or external FSK source. However, you cannot overwrite any of the five built-in waveforms. At this point, the function generator outputs a continuous sweep from 50 Hz to 5 kHz if the output is enabled.
AGILENT TECHNOLOGIES A USER MANUAL Pdf Download.
Note that since the rear-panel Modulation In connector is dc- coupled, you can use the A to emulate a voltage-controlled oscillator VCO. Symmetry Ramp Waves Applies to ramp waves only. Chapter 3 Features and Functions Pulse Width Modulation PWM Width Deviation The width deviation represents the variation in width in seconds in the modulated waveform from the width of the original pulse waveform.
The default is 10 Hz. OFFS commands to configure the carrier waveform.
Agilent Technologies 33220A User Manual
MIN selects the most negative dc offset voltage for the selected function and amplitude. Chapter 5 Error Messages Execution Errors Settings conflict; FSK turned off by selection of other mode or amnual The function generator will allow only one modulation, sweep, or burst mode to be enabled at the same time.
When enabled, a TTL-compatible square waveform with either a rising edge default or falling edge is output from the Trig Out connector at the beginning of the sweep. Chapter 7 Tutorial Modulation Modulation Modulation is the process of modifying a high-frequency signal called the carrier signal with low-frequency information called the modulating signal.
List the names of all waveforms currently available for selection. Chapter 5 Error Messages Execution Errors Settings conflict; edge time decreased due to pulse width For a pulse waveform, the function generator will automatically adjust the waveform parameters in the following order as needed to generate a valid pulse: Page of Go. Although the APPLy command provides the most straightforward method to program the function generator, the low-level commands give you more flexibility to change individual parameters.
Each character can be a letter “a” Chapter 3 Features and Functions Output Configuration Voltage Autoranging Autoranging is enabled by default and the function generator automatically selects the optimal settings for the output amplifier and attenuators. This section describes the low-level commands used to program the function generator to output a pulse waveform. The default is Linear. Page Chapter 3 Features and Functions Frequency Sweep Marker Frequency If desired, you can set the frequency at which the signal on the front- panel Sync connector goes to a logic low during the sweep.
33220A Function / Arbitrary Waveform Generator, 20 MHz
These parameters are similar to the start frequency and stop frequency see the previous page and are included to give you added flexibility. You cannot use pulse, noise, or dc as the carrier waveform. Page Index affect on amplitude 63 PM 85 load termination 35 PWM 93 offset affect on amplitude 63 tutorial description amplitude limitations 60,local language, help 28 modulation depth AM 77,local operation LAN modulation depth, percent modulation arb waveform limitations 61, logarithmic sweep Press the FSK Rate softkey and then set the value to Hz using the numeric keypad or the knob and cursor keys.
This chapter describes basic signal-generation concepts and gives specific details on the internal operations of the function generator. Page 53 0 towith no leading zeros. If a command requires more than one parameter, you must separate adjacent parameters using a comma as shown below: Select whether the function generator uses the rising edge or falling edge of the trigger signal on the rear-panel Trig In connector for an externally-triggered sweep.
The function generator beeps once each time an error is generated unless you have disabled the beeper. The Sync signal always goes from low to high at the beginning of the sweep. This error may be the result of a device failure or extreme conditions such as lightning or strong magnetic fields. While in the waveform editor, you define the waveform by specifying time and voltage values for each point in the waveform.
Chapter 3 Features and Functions Amplitude Modulation AM Modulation Depth The modulation depth is expressed as a percentage and represents the extent of the amplitude variation. The default is 0 degrees. For a logarithmic sweep, the function generator varies the output frequency in a logarithmic fashion.
Chapter 5 Error Messages Arbitrary Waveform Errors Not able to delete a built-in arb waveform You cannot delete any of the five built-in waveforms: For certain applications where you may not want to output the Sync signal, you can disable the Sync connector.
With autoranging disabled, the function generator uses the current amplifier and attenuator settings. Index FREQuency command center frequencyfront-panel operation 38 FUNCtion command external trigger source FSK rate 39, 91 modulating maual 82, frequency span mqnual, hop frequency 38, 91, modulating source 84, front-panel operation 40, 42 modulating source 92, modulating waveform 82 linear vs.
Used only when the Internal modulation source is selected AM: