Case K44 Spécifications Page 154

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Remote-Control CommandsGPS and Assisted GPS
140Operating Manual 1171.5248.12 ─ 15
Parameters:
<Mode> NBIT | WORD | SFRame | PULSe | PATTern | RATio | PPS |
PP2S | TRIGger | DISabled
NBIT
A marker signal is generated for every navigation data bit (20460
C/A chips).
WORD
A marker signal is generated for every navigation data word (30
navigation bits).
SFRame
A marker signal is generated for every navigation subframe (cor-
responds to 10 words).
PPS
A marker signal is generated for every start of second (GPS time).
The pulse width is defined with the
SOUR:BB:GPS:TRIG:OUTP:PULSe:WIDTh command
PP2S
A marker signal is generated for every second second (GPS time).
The pulse width is defined with the
SOUR:BB:GPS:TRIG:OUTP:PULSe:WIDTh command.
PULSe
A pulsed marker signal is generated. The pulse frequency (= sym-
bol rate/divider) is defined with the
SOUR:BB:GPS:TRIG:OUTP:PULSe:DIVider command and
can be queried with the
SOUR:BB:GPS:TRIG:OUTP:PULSe:FREQuency? command.
PATTern
A marker signal is generated according to the user defined pattern
(command SOURce:BB:GPS:TRIGger:OUTPut:PATTern).
RATio
A marker signal corresponding to the Time Off / Time On specifi-
cations in the commands
SOURce:BB:GPS:TRIGger:OUTPut:OFFT and
SOURce:BB:GPS:TRIGger:OUTPut:ONT is generated.
*RST:
NBIT
Example:
BB:GPS:TRIG:OUTP2:MODE WORD
selects the word marker signal on output MARKER 2. A marker
signal is generated for every navigation data word (30 navigation
bits, 20460 C/A chips each).
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:ONTime <Ontime>
[:SOURce<hw>]:BB:GPS:TRIGger:OUTPut<ch>:OFFTime <Offtime>
Sets the number of chips in a period (ON time + OFF time) during which the marker signal
in setting SOURce:BB:GPS:TRIGger:OUTPut:MODE RATio on the marker outputs is
OFF.
Marker Settings
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