3 VMA Mode
3.2 Custom OFDM Measurement
looping back every time the end of the array is reached again). The location within
the array that is looped back to is determined by the Time Gaps Repeat Index. There
are four possible cases:
1 RepeatIndex ≥ 0
and RepeatIndex
< ArrayLength
This is the normal case
The repeat index specifies which entry in the array to loop back to (the
index is zero-based). Each time the end of the array is reached, it
loops back to this entry in the array. A value of zero (which is the
default) therefore means that it loops back to the start of the array. A
value of ArrayLength−1 means that it loops back to the last value in
the array, so the last value is used over and over
2 RepeatIndex ≥
ArrayLength
The repeat index points beyond the end of the array. It is treated as
though RepeatIndex = ArrayLength−1, so the last value in the array is
repeated over and over
3 RepeatIndex < 0
and RepeatIndex
≥ −ArrayLength
A negative value means the repeat index is an offset from the end of
the array. A value of −1 means the last value in the array is repeated
over and over. A value of –ArrayLength means that it loops back to the
start of the array
4 RepeatIndex <
−ArrayLength
The negative value is larger than the array length, so it is too large to
be an offset from the end of the array. It is treated as though
RepeatIndex = –ArrayLength, so that it loops back to the start of the
array
Remote
Command
[:SENSe]:OFDM:CCARrier0|…|7:TGAP:RINDex <integer>
[:SENSe]:OFDM:CCARrier0|…|7:TGAP:RINDex?
Example
:OFDM:CCAR0:TGAP:RIND 1
Preset 1
Min 1
Max 2147483647
Time Gaps Values (Remote Command Only)
Specifies the time gaps before the start of each OFDM symbol. Each is specified as a
number of samples at the OFDM system sample frequency.
Remote
Command
[:SENSe]:OFDM:CCARrier0|…|7:TGAP <int>, <int>, …
[:SENSe]:OFDM:CCARrier0|…|7:TGAP?
Example
:OFDM:CCAR0:TGAP 2,1
Preset Time Gaps Values is cleared by Restore Mode Defaults
State Saved Saved in instrument state
Min 1
Max 2147483647
511 Vector Modulation Analyzer Mode User's &Programmer's Reference