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134 Chapter 5

8656B, 8657A/B/D/J Programming Codes

Command Mapping

This code turns off the digital modulation for NADC (8657D), PDC (8657D), and PHS (8657J). Replace

<format> with either NADC, PDC, or PHS as needed. The P0 code is mapped to the following SCPI

command:

[:SOURce]:RADio:<format>:STATe OFF

P4 (Digital Modulation On)—E4438C

This code turns off the AM and FM modulation and turns on the digital modulation for NADC (8657D),

PDC (8657D), and PHS (8657J).

The P4 code is mapped to the following SCPI commands:

• [:SOURce]:AM[1]:STATe OFF

• [:SOURce]:AM2:STATe OFF

• [:SOURce]:FM[1]:STATe OFF

• [:SOURce]:FM2:STATe OFF

• [:SOURce]:DM:SOURce INTernal1

• [:SOURce]:RADIO:<format>:STATe ON

• [:SOURce]:RADIO:<format>:REPeat CONT

• [:SOURce]:RADIO:<format>:DATA EXTernal

• [:SOURce]:DM:STATe ON

where <format> is either NADC, PDC, or PHS depending on the specific compatibility language selected.

PF (Pulse Modulation-Fast Mode) or PM (Pulse Modulation)

The E4428C/38C supports only one input selection for pulse which is EXTernal 2 (EXT 2 INPUT

connector). This is a DC-coupled input. Internal pulse modulation, therefore, is not supported in the 8656B,

8657A/B/D/J-compatible language modes. The PF or PM code is mapped to the following SCPI commands:

• [:SOURce]:PULM:SOURce EXTernal2

• [:SOURce]:PULM:STATe ON

S1, S2, or S3 used with AM

When the AM code is executed, the following occurs:

• AM becomes the active function.

• AM1 and AM2 depth values are coupled by mapping to the following command:

1 2 ... 137 138 139 140 141 142 143 144 145 146 147 ... 157 158

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Agilent Technologies ESG Bedienungsanleitung Seite 142