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Remote-Control CommandsGPS and Assisted GPS

144Operating Manual 1171.5248.12 ─ 15

Parameters:

<Source> INTernal | EXTernal | AINTernal

INTernal

The internal clock reference is used to generate the chip clock

(1.023 MHz).

EXTernal

The external clock reference is supplied to the CLOCK connector.

*RST: INTernal

Example:

BB:GPS:CLOC:SOUR EXT

selects an external clock reference. The clock is supplied via the

CLOCK connector.

BB:GPS:CLOC:MODE CHIP

specifies that a chip clock is supplied via the CLOCK connector.

4.9

Filter Settings

[:SOURce<hw>]:BB:GPS:FILTer:OSAMpling <Osampling>

for R&S WinIQSIM2 only

The command sets the upsampling factor.

A higher upsampling factor improves the filtering but increases the waveform size pro-

portionally. This leads to limitation for the maximum Duration of Satellite Simulation

(BB:GPS:DUR).

Parameters:

<Osampling> float

Range: 2 to 32

Increment: 1

*RST: 2

Example:

BB:GPS:FILT:OSAM 12

sets the upsampling factor to 12.

[:SOURce<hw>]:BB:GPS:FILTer:TYPE <Type>

Sets the filter to GPS compliant rectangular mode or to Gauss mode.

Parameters:

<Type> RECTangle | GAUSs

*RST: RECTangle

Example:

BB:GPS:FILTer:TYPE RECT

sets the filter to rectangular mode.

Filter Settings

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Case K44 Spécifications Page 158