Agilent Technologies E4406A manual Getting Started Front Panel Description, Chapter

Getting Started

Front Panel Description

9.Probe Power The probe power input supplies power for external

probes; the three connectors are a ground, and a +15 V, and a −12.6 V connector. The probe power supplies power to high frequency probes and accessories, such as preamplifiers, that are used as accessories to the transmitter tester. The probe power provides a maximum of 150 mA.

10. RF Input The 50 Ω RF input allows for input of an external RF signal. The connector is a type N female, and is rated for a maximum input of +35 dBm for measuring a CW signal, and a maximum of 26 volts for a DC signal.

11.Data Entry keys are used to enter numeric values. Entries made using data entry keys will be visible in the active function area (see the section on annotation on page 33 to locate the active function area).

•The Enter key is used to terminate numeric data where no units of measurement are being entered, or where you want to terminate with the default unit of measurement. For operations involving selection of a unit of measurement (for example, dB, dBm,

Hz, s, degrees, radians), the Units softkey menu (explained below) is used to terminate numeric entries.

•Units softkeys are used to enter units of measurement. If the value you are entering is in units of measurement, the units softkey menu will automatically appear once you enter a digit. After entering the desired numeric value, you terminate the entry by pressing the appropriate units of measurement softkey.

•Numeric keys enter numeric values as indicated on the keys. In addition, decimal and positive and negative sign keys are available for your use.

•The Step keys (these are the up and down arrow keys) change numeric values in increments of the current step size.

•The Backspace key moves the cursor backwards one space and erases the character in that space. You can use the Backspace key to backspace characters in the active function area.

•The RPG Knob changes numeric values in increments of the current knob resolution.

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