1 How To...
1.28
Time Tag External Events
The receiver can time-tag electrical level transitions on its Event
X
inputs with an accuracy of
20ns.
By default, the receiver reacts on low-to-high transitions.
You can use the
command to react on falling edges instead:
setEventParameters,EventA,High2Low <CR>
Upon detection of a transition, the receiver can output the time and/or the position at the
instant of the event (see for example the
SBF block).
The following constraints must be observed to ensure proper event detection:
• There must be no more than 20 events in any interval of 100 milliseconds, all event pins
considered.
• The minimum time between two events on the same Event
X
input must be at least
5ms.
Missed events are flagged by the
MISSEDEVENT
bit in the
SBF block.
The external event inputs can also be used to flag log files as “to be preserved”. If this is
enabled, files logged during the occurrence of an external event are preserved from auto-
deletion. Refer to the
command for details.
50
Summary of Contents for PolaRx5TR
Page 1: ...PolaRx5TR Reference Guide Applicable to version 5 5 0 of the Firmware ...
Page 73: ...3 Command Line Reference Chapter 3 Command Line Reference 73 ...
Page 130: ...3 Command Line Reference COM1 gim CR R gim IonosphereModel off COM1 130 ...
Page 237: ...3 Command Line Reference COM1 237 ...
Page 279: ...3 Command Line Reference COM1 279 ...
Page 294: ...4 SBF Reference Chapter 4 SBF Reference 294 ...