E8257d agilent manual

This connector is not operational for generalpurpose customer use. The nominal output impedance of the Q OUT connector is 50 ohms, dccoupled. The nominal output impedance of the I OUT connector is 50 ohms, dccoupled. This input is not calibrated. The nominal impedance for this connector is 50 ohms. The signal generator uses lowside mixing in the 20— The recommended power level at this input connector is 0 dBM. Balanced signals are signals present in two separate conductors that are symmetrical relative to ground and are opposite in polarity degrees out of phase.

The nominal output impedance of the I- bar OUT connector is 50 ohms, dccoupled. The output power is nominally 0 dBm. The output frequency range is from If the RF output frequency is below Damage levels are 20 Vdc and 13 dBm reverse RF power. The nominal output impedance of this connector is 50 ohms. The nominal output level is 7 dBM. When not in use, this connector must be terminated with a 50 ohm load.

The nominal output impedance of the Q- bar OUT connector is 50 ohms, dccoupled. The ac line voltage is connected here. The power cord receptacle accepts a threepronged power cable that is shipped with the signal generator. The nominal input impedance is greater than 1 Mohms. When not in use, this connector should be shorted using the supplied shorting cap to assure a stable operating frequency.

A low input signal allows the ALC to be held for a brief time less than 1 second and not track the RF signal. The reference must be 1, 2, 2.

The signal generator detects when a valid reference signal is present at this connector and automatically switches from internal to external reference operation. The green LED illuminates when there is a delay in data transmission or no data transmission is present. The accuracy is determined by the timebase used. It provides lowlevel nominally 0 V output during sweep retrace and bandcross intervals. When operating as an input, the nominal impedance for this connector is less than.

When operating as an output, the nominal impedance is approximately 4. The recommended input level is approximately 1 Vpeakto- peak for a square wave and 1 dBm to 6 dBm for a sine wave. This allows baseband generators from multiple signal sources to run off the same clock. During ramp sweep, this female BNC connector supplies a —5 V nominal level when the RF frequency is at a marker frequency and intensity marker mode is on. This signal is derived from an operational amplifier output so the load impedance should be greater than or equal to 5 kohms.

When connected to an Agilent Technologies D network analyzer, it generates a selectable number of equally spaced 1 ms, 10 V pulses nominal across a ramp analog sweep. The number of pulses can be set from to by remote control through the D. The signal is low when the dwell is over or when a point trigger is received. The nominal impedance for this connector is less than 10 ohms. This female BNC connector accepts a 3.

Triggering can occur on either the positive or negative edge of the signal start. The nominal input impedance for this connector is approximately 4. This female BNC connector provides a 3- volt CMOS output trigger, indicating when the signal generator has settled to a new frequency or power level.

A high indicates that the source has not settled. A low indicates that the source has settled. The nominal output impedance for this connector is less than 10 ohms. This interface is used to connect to compatible Agilent Technologies Series mmwave source modules. The reverse power damage levels are 0 Vdc, 0.

On signal generators without Option 1EM, this connector is located on the front panel. On signal generators without Option 1EM, this connector is located on the front rear panel. On signal generators without Option 1EM, this connector located on the front panel. The quadraturephase Q component is supplied through the Q IN. The nominal input. The inphase I component is supplied through the I IN. This output is capable of driving 3V p nominal into a 50ohm load.

In the following sections, this chapter describes operations common to all Agilent PSG signal generators:. Table editors simplify configuration tasks, such as creating a list sweep. This section provides information to familiarize you with basic table editor functionality using the List Mode Values table editor as an example.

The following table editor softkeys are used to load, navigate, modify, and store table item values. Use the arrow keys or the knob to move the table cursor over the desired item. In Figure 2- 1 , the first item in the Frequency data field is selected. Press Edit Item. Use the knob, arrow keys, or the numeric keypad to modify the value.

Press Enter. This section provides information on how to create continuous wave and swept RF page 38 outputs. Return the signal generator to the factorydefined state: Press Preset. You can change the preset condition of the signal generator to a userdefined state. Each press of the up arrow key increases the frequency by the increment value last set with the Incr Set hardkey.

The increment value is displayed in the active entry area. The down arrow decreases the frequency by the increment value set in the previous step. Practice stepping the frequency up and down in 1 MHz increments. You can also adjust the RF output frequency using the knob. As long as frequency is the active function the frequency is displayed in the active entry area , the knob will increase and decrease the RF output frequency.

Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. Agilent Technologies. ED PSG. Contents 1. Contents Contents 3. Chapter 1 1. Chapter 1 3. Firmware Upgrades You can upgrade the firmware in your signal generator whenever new firmware is released.

NOTE Once the download starts, it cannot be aborted. When the upgrade completes, the Upgrade Assistant displays a summary. Click OK and close the Upgrade Assistant. Modes of Operation Depending on the model and installed options, the PSG signal generator provides up to four basic modes of operation: continuous wave CW , swept signal, analog modulation, and digital modulation.

Continuous Wave In this mode, the signal generator produces a continuous wave signal. Analog Modulation In this mode, the signal generator modulates a CW signal with an analog signal. Chapter 1 5. Display Help Local 2. Softkeys Preset 3. Knob Incr Set Line Power LED 4. Amplitude LINE 5. Frequency Arrow Keys Standby LED 6. Save Hold Recall Return Trigger Numeric Keypad Contrast Decrease DATA 9. MENUS Contrast Increase Q Input Chapter 1 7. Signal Generator Overview Front Panel 1.

Display The LCD screen provides information on the current function. Softkeys Softkeys activate the displayed function to the left of each key. Knob Use the knob to increase or decrease a numeric value, change a highlighted digit or character, or step through lists or select items in a row. Amplitude Pressing this hardkey makes amplitude the active function.

Frequency Pressing this hardkey makes frequency the active function. Save Pressing this hardkey displays a menu of choices that enable you to save data in the instrument state register. Recall This key restores an instrument state saved in a memory register. Signal Generator Overview Front Panel 8. Trigger This key initiates an immediate trigger event for a function such as a list, step, or ramp sweep Option only.

Help Pressing this hardkey causes a short description of any hardkey or softkey to be displayed and, in most cases, a listing of related remoteoperation SCPI commands. Chapter 1 9. Signal Generator Overview Front Panel Numeric Keypad The numeric keypad consists of the 0 through 9 hardkeys, a decimal point hardkey, and a backspace hardkey. The backspace hardkey enables you to backspace or alternate between a positive and a negative value. Incr Set This hardkey enables you to set the increment value of the current active function.

Arrow Keys These up and down arrow hardkeys are used to increase or decrease a numeric value, step through displayed lists, or to select items in a row of a displayed list. Chapter 1 Return Pressing this hardkey displays the previous softkey menu. Contrast Decrease Pressing this hardkey causes the display background to darken. Contrast Increase Pressing this hardkey causes the display background to lighten. Local Pressing this hardkey deactivates remote operation and returns the signal generator to frontpanel control.

Preset Pressing this hardkey sets the signal generator to a known state factory or userdefined. LINE In the on position, this switch activates full power to the signal generator; in standby, it deactivates all signal generator functions. Figure Front Panel Display Diagram 1. Active Entry Area 5. Amplitude Area 2. Frequency Area 6. Error Message Area 3. Annunciators 7. Text Area 4. Digital Modulation Annunciators 8.

Active Entry Area The current active function is shown in this area. Frequency Area The current frequency setting is shown in this portion of the display. Annunciators The display annunciators show the status of some of the signal generator functions and indicate any error conditions. ARMED This annunciator appears when a sweep has been initiated and the signal generator is waiting for the sweep trigger event.

When this function is on, the attenuator is held at its current setting. ERR This annunciator appears when an error message is in the error queue. This annunciator does not turn off until you either view all the error messages or cleared the error queue.

EXT This annunciator appears when external leveling is on. When this annunciator is on, frequency accuracy is degraded. This condition should occur for several minutes after the signal generator is first connected to line power. When the R annunciator is on, the front panel keys are disabled, except for the Local key and the line power switch. For information on remote operation, refer to the Programming Guide.

Either condition of this annunciator is always visible in the display. SWEEP This annunciator appears when the signal generator is in list, step, or ramp sweep mode ramp sweep is available with Option only.

List mode is when the signal generator can jump from point to point in a list hop list ; the list is traversed in ascending or descending order.

The list can be a frequency list, a power level list, or both. Step mode is when a start, stop, and step value frequency or power level are defined and the signal generator produces signals that start at the start value and increment by the step value until it reaches the stop value. Ramp sweep mode Option only is when a start and stop value frequency or power level are defined and the signal generator produces signals that start at the start value and produce a continuous output until it reaches the stop value.

Unleveled conditions can occur during normal operation. You can determine which loop is unlocked by examining the error messages. Amplitude Area The current output power level setting is shown in this portion of the display. Error Message Area Abbreviated error messages are reported in this space.

Softkey Label Area The labels in this area define the function of the softkeys located immediately to the right of the label. EVENT 1 LAN 2. EVENT 2 Q- bar OUT AC Power Receptacle GPIB Q OUT I OUT I- bar OUT RF OUT 2. EXT 1 3. EXT 2 4. LAN I IN DATA Q IN EXT 2 LF OUT RF OUT Signal Generator Overview Rear Panel 1.

Signal Generator Overview Rear Panel 5. Signal Generator Overview Rear Panel 6. Signal Generator Overview Rear Panel AC Power Receptacle The ac line voltage is connected here. When operating as an input, the nominal impedance for this connector is less than 10 ohms. The nominal output impedance is less than 1 ohm and can drive a 2 kohm load. The quadraturephase Q component is supplied through the Q IN connector. The inphase I component is supplied through the I IN connector.

Chapter 2 The signal generator displays the List Mode Values table editor, as shown below. Figure Active Function Area Cursor Table Name Table Items Table Softkeys Active Function Area displays the active table item while its value is edited Cursor an inverse video identifier used to highlight specific table items for selection and editing Table Softkeys select table items, preset table values, and modify table structures Table Items values arranged in numbered rows and titled columns The columns are also known as data fields.

For example, the column below the Frequency title is known as the Frequency data field. Basic Operation Using Table Editors Table Editor Softkeys The following table editor softkeys are used to load, navigate, modify, and store table item values. The selected item is displayed in the active function area of the display.

The modified item is now displayed in the table. NOTE You can change the preset condition of the signal generator to a userdefined state. For these examples, however, use the factorydefined preset state set the Preset Normal User softkey in the Utility menu to Normal. The value displayed is the maximum specified frequency of the signal generator. This changes the frequency increment value to 1 MHz. Press the up arrow key. You can only view or download manuals with. Sign Up and get 5 for free.

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Get 1 for every download of your manual. Buy as much as you need. This annunciator Option UNT only appears when phase modulation is on.

This annunciator appears when the ALC circuit is disabled. A second annunciator,. This annunciator Option UNT only appears when amplitude modulation is on. This annunciator appears when a sweep has been initiated and the signal. This annunciator appears when an error message is in the error queue. This annunciator appears when an external frequency reference is applied. This annunciator Option UNT only appears when frequency modulation is turned.

This annunciator appears when the signal generator is in listener mode and is. This condition should. This annunciator appears when the signal generator is remotely controlled over. When the R annunciator is on, the front panel keys. This annunciator appears when the signal generator has generated a service. List mode is when the. The list can be a frequency list, a. Step mode is when a start, stop, and step value. Ramp sweep mode Option only is when a start and stop value.

This annunciator appears when the signal generator is in talker mode and is. This annunciator appears when the signal generator is unable to maintain the. This annunciator appears when any of the phase locked loops are unable to.

You can determine which loop is unlocked by examining the. For example, the. There are no operator serviceable parts inside. To avoid electrical shock, refer servicing to qualified personnel. Inspect the shipping container for damage. Signs of damage may include a dented or torn shipping container or cushioning material that shows signs of unusual stress or compacting. Carefully remove the contents from the shipping container and verify that your order is complete.

The following items are shipped standard with each signal generator:. CD-ROM contents are also available in hard copy format. Verify that any options ordered are included with the shipment by checking the packing literature included with the shipment.

Front handles and rack mounting hardware are also available for your signal generator. The signal generator is designed for use in the following environmental conditions:. Ventilation holes are located on the left side of the signal generator cover and the rear of the signal generator chassis. Do not allow these holes to be obstructed, as they allow air flow through the signal generator.

When installing the signal generator in a cabinet, the convection into and out of the signal generator must not be restricted. When this condition exists, forced convection must be applied. The signal generator has an autoranging line voltage input. The available ac power source must meet the following conditions:. This is a Safety Class 1 Product provided with a protective earth ground incorporated into the power cord.

The front panel switch is only a standby switch; it is not a line switch. The AC power cord is the disconnecting device that disconnects the signal generator mains circuits from the mains supply. Alternatively, an external switch or circuit breaker, readily identifiable and easily reached by the operator, may also be used as a disconnecting device. Disconnecting power to an instrument with a high stability timebase may require a longer warm-up period before it meets specifications.

Perform the following steps when connecting the ac power cord:. Intentional interruption is prohibited. Always use the three-prong AC power cord supplied with the signal generator. Ensure that the power cord is not damaged. Install the signal generator so that one of the following items is readily identifiable and easily reached by the operator: AC power cord, alternative switch, or circuit breaker.

Insert the mains plug into a socket outlet provided with a protective earth grounding. The ac power cord included with the signal generator is appropriate to its geographic location. However, you can order additional ac power cords for use in different areas. The following table lists the available ac power cords, illustrates plug configurations, and identifies the geographic area in which each cord is appropriate.

You can adjust the LCD display using features such as contrast, brightness, screen saver mode, and the screen saver delay. You can also toggle features such as inverse video, display updating in remote mode, and the screen saver on or off. Press to decrease the display contrast. Pressing the decrease contrast hardkey and holding it down causes the display background to gradually darken in comparison to the text on the display. The minimum contrast setting is not a completely black display.

Some contrast between the background and the text will still be visible. Press to increase the display contrast. Pressing the increase contrast hardkey and holding it down causes the display background to gradually brighten in comparison to the text on the display. If the background does not appear to change, it is probably set to the maximum contrast. Brightness can be adjusted using the arrow keys, numeric keypad, or front panel knob.

The brightness value is set to 50 maximum brightness at the factory. The minimum brightness value is 1. The normal display mode for the signal generator is dark text on a light background.

Inverse video mode is light text on a dark background. Inverse video is a persistent state; it is not affected by a signal generator preset or power cycle. Leaving the display lit for long periods of time or turning the display on and off frequently decreases the life of the bulb. With the screen saver on, the display light is turned off after a defined period of time with no.

The display light turns on again when any front panel key is pressed or when a remote command is sent. The screen saver is set to off at the factory. This toggles the screen saver mode between light-only mode and light-and-text mode. Adjust the screen saver mode to turn the light on, off, or to turn both the light and text on and off.

Setting the mode to light-only mode turns the display light off, leaving the text visible at a low intensity. If the display remains unchanged for long periods of time, set the mode to light and text to prevent the text from burning the display. This mode turns the display light and the text off. The screen saver delay is set to 1 hour at the factory. The current screen saver delay is displayed in the softkey label and also in the active entry area.

To change the delay, enter a new value using the numeric keypad and then press Enter , or rotate the front panel knob. The acceptable range of delay values is 1 through 12 hours in 1 hour increments.

The screen saver settings are persistent states; they are not affected by a signal generator preset or power cycle. When toggled on, commands executed via the remote control bus will update the signal generator display accordingly. Update-in-remote mode is set to off at the factory.

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