Combination of Baseband Signal Function Simple Operation Guide

User Guide

Combination of Baseband Signal Function

Simple Operation Guide

Vector Signal Generator MG3710A/MG3710E

Analog Signal Generator MG3740A

This guide explains the dual signal combination method using the Combination of

Baseband Signal Function (Opt.048/078) installed in the Vector Signal Generator

MG3710A/MG3710E and Analog Signal Generator MG3740A (with Digital Modulation Option).

Level

Frequency Offset

Wanted Signal

Interference Signal

Time Offset

Example of Combination of Baseband Signal Function Setting Screen

For more details, refer to the following operation manual.

MG3710A/MG3710E Vector Signal Generator MG3740A Analog Signal Generator

Operation Manual

Chapter 4 Frequency

Chapter 5 Output Level

Chapter 7 Modulation

7.3 Baseband Mode

Setting Wanted and Interference Signal Frequency Offset 1/5

The assumed method for setting the Adjacent Channel Selectivity test using the following

wanted and interference signal conditions is introduced as an example.

This manual describes the procedures for setting the wanted waveform in Memory A and

the interference waveform in Memory B.

Communications Method

Wanted Waveform

Package Name

Pattern Name

Level

Interference Waveform

Package Name

Pattern Name

Level

Frequency Offset (B-A)

Level Ratio (A/B)

Interference

Signal

: ARIB STD-T61

: ARIB_STD-T61

: UpDownLink

: 3 dBuV

Wanted

Signal

: ARIB_STD-T61

: PN15

: 45 dBuV

: +6.25 kHz

: ¨C42 dB

Output Signal Image

(Example of Confirmation using

Spectrum Analyzer)

[Operation Method] Enable (Edit) the baseband combination function.

¢Ù [Mode]

¢Ú [F2: Combination Mode] = Edit

¢Ù

¢Ú

Setting Wanted and Interference Signal Frequency Offset 2/5

[Procedure] Load the waveform pattern.

¢Ù [Load]

¢Ú Select ¡°ARIB_STD-T61¡± at ¡°Package Name¡±.

¢Û [F8: To Memory] = A

¢Ü Select ¡°UpDownLink¡± at ¡°Pattern Name¡±.

¢Ý [F6: Load Pattern]

¢Þ [F8: To Memory] = B

¢ß Select ¡°PN15¡± at ¡°Pattern Name¡±.

¢à [F6: Load Pattern]

¢Ù

¢Ú

¢Ý

¢Ü

¢Û

¢ß

¢à

¢Þ

Setting Wanted and Interference Signal Frequency Offset 3/5

[Procedure] Select the waveform pattern.

¢Ù [Select]

¢Ú Select ¡°ARIB_STD-T61¡±at ¡°Package Name¡±

¢Û [F8: On Memory] = A

¢Ü Select ¡°UpDownLink¡± at ¡°Pattern Name¡±.

¢Ý [F6: Select]

¢Þ [Select]

¢ß [F8: On Memory] = B

¢à Select ¡°PN15¡± at ¡°Pattern Name¡±

¢á [F6: Select]

Memo:

As a different procedure, after pressing

[Mode], Memory A/B, the Package and

Pattern can be selected at the touch panel.

¢Ù¢Þ

Confirming Settings

¢Ú

¢Ü

¢Ý

¢Û

¢à

¢á

¢ß

Setting Wanted and Interference Signal Frequency Offset 4/5

Memo:

[Procedure] Set the levels.

In this case, when [F6: A/B Ratio] is

changed, the level of the wanted

¢Ù [Mode]

waveform (Memory A) is fixed and the

¢Ú [F3: ARB Setup]

level of the interference waveform

¢Û Set the wanted waveform (Memory A) level. (Example: 3 dBuV)

(Memory B) can be adjusted.

[F2: Level A] = [3] [F2: dBuV]

This function is useful at the Adjacent

Channel Selectivity test.

¢Ü Enable output of the interference waveform (Memory B).

[F3: Output B] = On

¢Ý Set the interference waveform (Memory B) output to the relative value setting mode.

[F5: A/B Signal Setting] = B

¢Þ Set the interference waveform (Memory B) output. (Example: ¨C42 dBc)

[F6: A/B Ratio] = [¨C42] [F1: dB]

¢Ù

¢Û

¢Ú

¢Ü

¢Ý

¢Þ

? Wanted

Waveform Level

Example: 3 dBuV

Confirming Settings

Interference

Waveform

45 dBuV

? Interference

Waveform Level

Example: 45 dBuV

? Level Ratio (A/B)

Example: ¨C42 dB

Level Ratio

¨C42 dB

Wanted

Waveform

3 dBuV

Output Level Image

(Example of Confirmation

using Spectrum Analyzer)

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