GBAS/SCAT-I Mode (Options R&S
EVSG-K4/-K5)
R&S
®
EVSF1000
120
User Manual 1178.6410.02 ─ 05
In the "Sequence" view, the data from the last 40 frames is available. The data is
stored in a so-called
ring buffer
. When the ring buffer is full, the next data set over-
writes the first data set, that is: the oldest. Thus, the most recent 40 data sets are avail-
able. The most recently received frame is referred to as T. Each previous frame is
referred to as T minus 1 (T-1), T-2 etc. Every 500
ms, a new frame is inserted, over-
writing the frame T-39, and becomes the new frame T. Thus, the display is updated
every 500
ms. To freeze the current display for evaluation, you can pause the table
on page 132). Data recording and streaming, however, con-
tinue as usual. When updating is resumed, all frames in the table are updated.
Results for a single frame or slot
The currently selected frame and slot are indicated by a dotted rectangle in the table.
To view the details for a particular frame or slot, turn the rotary knob to scroll through
the slots and frames. When the required slot or frame is selected, select the view you
want to see the slot results in.
For more details, see:
●
●
●
Chapter 8.4.4, "Constellation View"
●
For each slot in each displayed frame, the following information is provided in the cor-
responding table cell (for a valid GBAS burst, if available).
GBAS / SCAT-I Measurement Views and Results
