Case K44 Spécifications Page 83

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User InterfaceGPS and Assisted GPS
69Operating Manual 1171.5248.12 ─ 15
"1PP2S"
A marker signal is generated for every second start of second (GPS
time).
The "Pulse Width" is set in the corresponding field. The input is
expressed as a number of chips.
While generating an offline GPS signal with R&S WinIQSIM2, this
marker signal is only enabled, if the "Doppler Shift" is set to 0.
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:PULSe:WIDTh on page 142
"Pulse"
A regular marker signal is generated. The clock frequency is defined by
entering a divider. The frequency is derived by dividing the chip rate
(1.023 MHz) by the divider. The input box for the divider opens when
"Pulse" is selected, and the resulting pulse frequency is displayed.
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:PULSe:DIVider on page 141
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:PULSe:FREQuency
on page 141
"Pattern"
A marker signal that is defined by a bit pattern is generated. The pattern
has a maximum length of 32 bits and is defined in an input field which
opens when pattern is selected.
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:PATTern on page 141
"ON/OFF
Period"
A regular marker signal that is defined by an ON/OFF ratio is generated.
A period lasts one ON and OFF cycle.
The "ON Time" and "OFF Time" are each expressed as a number of
samples and are set in an input field which opens when ON/OFF ratio
is selected.
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:ONTime on page 140
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:OFFTime on page 140
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:MODE on page 139
3.6.3 Marker Delay
The delay of the signals on the MARKER outputs is set in the"Marker Delay" section.
The marker delay functions are available for R&S SMx and R&S AMU instruments only.
Trigger/Marker/Clock Settings
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