Front Panel Controls

The picture shows a Dual RF I/O MIMO Test Set but the Front Panel differs from a single RF I/O Test Set only by having an additional N-type connector.

Power

This is the On/Off button for AC power. Pressing this button when the Test Set is powered off turns it on. Pressing this button after performing a system shutdown from the GUI powers-off the E6651A safely.  

Do Not power-off the E6651A with the power button whilst the E6651A application is running – always use the "System Shutdown” feature from the Mode menu of the E6651A by selecting Mode > Shutdown to close the application before powering-off the E6651A.

Do not power-on the E6651A within 5 seconds of power-down.

LCD Screen

Measurement results are displayed on the LCD Screen. Different screen layouts are used for each mode of operation. In each layout, the screen is divided into three areas: the Setting Window, the Working Window, and the Selection Menu.

Menu

Press the Menu button to display the top level menu for the current Measurement Window.

Return

Press the Return button to display the previous menu for the current Measurement Window.

More

Use this button to select additional options when more than 6 menu options are available.

Knob

Increments and decrements the value of the currently selected parameter.

USB Port

The Test Set software runs on an embedded operating system. Devices using a USB interface may be connected to this port.

Arrow Key

Move the on-screen cursor using the Left and Right Arrow Keys.

Numeric and Hex Keys

Parameters like frequency can be input using these keys. Hexadecimal values can be input using the Hexadecimal Keys.

RF1 I/O

A cable is connected to this port for communication with the subscriber station. This port can act as an RF input port, an RF output port or a duplex port based on the mode of operation. In BSE mode, this port automatically switches between input and output based on the downlink and uplink frame duration. In SA mode, this port may operate as an RF input or duplex port.

For MIMO SS testing, the Tx/Rx 1 port of the SS should be connected to this port.

RF2 I/O

This connector is only present when the Test Set is configured with dual transmit and/or receive RF signal paths.

For Hardware Revision A.1.x Test Sets this is not fitted. The RF2 port is fitted with a blanking plug if a Hardware Revision A.2.x Test Set is configured with only one RF I/O path.  Click here for more information about identifying the hardware revision.

A cable is connected to this port for communication with the subscriber station. This port can act as an RF output port only.

Menu Selection Keys

Six buttons are available on the right hand side of the LCD Screen for menu selection. The current menu is displayed at the right side of the screen. When more than 6 menu options are available, select More to see the additional options.

Amplitude

Adjust values related to input power using this button, including Amplitude, Attenuation, Reference Level, Scale and Amplitude Offset.

Frequency

Use this button to set frequency-related values including Center Frequency, Frequency Offset, Resolution Bandwidth (RBW), Channel Bandwidth (CBW) and SPAN. The Center Frequency is used as the starting point for frequency parameter adjustment.

Mode

Use this button to select the BSE (Base Station Emulator), SA (Signal Analyzer) or SG (Signal Generator) mode of operation.

Measure

Use this button to display the Measurement Menu in SA mode. When the unit is in BSE or SG mode, pressing this button switches the mode to SA. SA measurement selections available in this mode include Spectrum Analysis, WiMAX Modulation Analysis, I/Q input Analysis, Error Vector Spectrum Analysis, and CCDF.

System

This button displays the System menu allowing access to the Network settings, Profile Manager, Load and Save settings, connecting to the E6655A Lab Application, enabling TTCN Mode, I/Q Calibration, Clock source, Trigger, and Screen capture functions.

Preset

Use this button to revert most parameters to their default values. Note that some parameters are unaffected by Preset.

Pause

Use the Pause button to stop Test Set operation in BSE or SA mode. When the Pause status is active, PAU in the Setting Window is red.

Local

Use this to return the Test Set to front panel control after remote interface operation.

Bk Sp

Press the Bk Sp (back space) key to delete the selected digit.

ENT

Press the Enter key to apply inputs and terminate input selection.

Yes

This button is used to confirm the action or choice presented in the Yes/No window

No

This button is used to confirm the action or choice presented in the Yes/No window

RF

Press this button to enable the RF output from the E6651A. Both the RF and MOD functions must be enabled to generate a WiMAX output signal.

MOD

Press this button to enable modulation of the RF signal from the E6651A. Both the RF and MOD functions must be enabled to generate a WiMAX output signal.