Waveform Setup

1. Basic

2. Markers

Waveform Name

Marker 1 Source

Comment

Marker 2 Source

Number of Frames

Marker 3 Source

Oversampling Ratio

Marker 4 Source

Time Scale Factor

 

Total Sample Points

 

Waveform Length

 

PHY Specification

 

1. Basic

Waveform Name

Enter an alpha-numeric waveform file name. The maximum name length is 23 characters (such as E4438C, N5182A and etc.).

If you enter a name with more than 23 characters, the software truncates the name to 23 characters when you click outside of the cell. The name can include spaces and the following special characters: _ $ & # + - [ ].

Comment

Enter an alpha-numeric comment of up to 32 characters. The comment resides in the file header and can include spaces and special characters.

Number of Frames

Range: 1–2000

Default: 1

Enter the number of frames for use in the waveform.

Oversampling Ratio

Range: 2–64

Default: 16

Enter the oversampling ratio of the waveform. The Waveform Length and Total Sample Points are automatically determined based on the oversampling ration.

Time Scale Factor

Range:0.01 to 10

Default: 1

Time Scale Factor is used to modify the bandwidth of the waveform. This parameter appears only when PHY Specification is set to 802.15.4 HRP UW. It is also coupled to the instrument's baseband sample clock.

Total Sample Points

Displays the number of sample points in the waveform. You cannot edit this cell. The parameter is directly related to the oversampling ratio value selected. (Increasing the oversampling ratio increases the total sample points.)

Waveform Length

Displays the waveform length that are included in the waveform. You cannot edit this cell. The parameter is related to the number of frames. (Increasing the number of frames increases the waveform length.)

PHY Specification

Choices: 802.15.4 SUN FSK | 802.15.4 SUN OFDM | 802.15.4 SUN O-QPSK | 802.15.4 O-QPSK BPSK | 802.15.4 HRP UWB | ITU-T G.9959 | LoRa CSS

Default: 802.15.4 SUN FSK

Select the format of PHY Specification of the waveform. For more information, use the following links:

802.15.4 SUN FSK

Settings

Tutorial

Concepts

802.15.4 SUN OFDM

Settings

Tutorial

Concepts

802.15.4 SUN O-QPSK

Settings

Tutorial

Concepts

802.15.4 O-QPSK BPSK

Settings

Tutorial

Concepts

802.15.4 HRP UWB

Settings

Tutorial

Concepts

ITU-T G.9959

Settings

Tutorial

Concepts

LoRa CSS

Settings

Tutorial

Concepts

2. Marker

Marker 1 Source

Default: Waveform Start

Configure the marker points for Marker 1 using the Marker Source Selection drop-down menu.

The signal generator outputs the Marker 1 signal from the rear-panel EVENT 1 output. For more information, see the signal generator's User Guide.

Marker 2 Source

Default: Frame Start

Configure the marker points for Marker 2 using the Marker Source Selection drop-down menu.

The signal generator outputs the Marker 2 signal from the rear-panel EVENT 2 output. For more information, see the signal generator's User Guide.

Marker 3 Source

Displays the source for Marker 3.

Marker 4 Source

Display the source for Marker 4.

For 802.15.4 SUN OFDM waveform, ALC Control marker is placed within STF 4 symbols. The power level of STF symbols is used as the reference for ALC to control the RF output power of the signal generator.

Graph View

The graph view displays several different representations of the generated waveform. For more information, see Graph View.