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Ublox SAM-M10Q User Manual

Ublox SAM-M10Q
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SAM-M10Q-Integration manual
Figure 14: Time pulse
2.9.1 Recommendations
The time pulse can be aligned to a wide variety of GNSS times or to variants of UTC derived
from them (see the time bases section). However, it is strongly recommended that the choice
of time base is aligned with the available GNSS signals (so to produce GPS time or UTC(USNO),
ensure GPS signals are available, and for GLONASS time or UTC(SU) ensure the presence of
GLONASS signals). This will involve coordinating the setting of CFG-SIGNAL-* configuration
group with the choice of time pulse time base.
When using time pulse for precision timing applications it is recommended to calibrate the
antenna cable delay against a reference timing source.
To get the best timing accuracy with the antenna, a fixed and accurate position is needed.
If relative time accuracy between multiple receivers is required, do not mix receivers of different
product families. If this is required, the receivers must be calibrated accordingly, by setting
cable delay and user delay.
The recommended configuration when using the UBX-TIM-TP message is to set both the
measurement rate (CFG-RATE-MEAS) and the time pulse frequency (CFG-TP-*) to 1 Hz.
The sequential order of the signal present at the TIMEPULSE pin and the respective output message
for the simple case of 1 pulse per second (1PPS) is shown in the following figure.
UBX-22020019 - R01
2 Receiver functionality Page 39 of 72
C1-Public

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Ublox SAM-M10Q Specifications

General IconGeneral
BrandUblox
ModelSAM-M10Q
CategoryControl Unit
LanguageEnglish

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