Available Display Modes - Wavetek TETRA MS Test Operating Instructions Manual

TETRA MS Test

Available display modes

DOTS, the points of maximum effect (POMEs) are shown for one
timeslot. This display, for a well adjusted transmitter, shows eight
tightly limited accumulations of dots, offset by 45°. Before the
points from a new measurement (next burst or timeslot) are
displayed, the recent results are deleted.
LINES, consecutive points of maximum effect are connected.
From this display it is possible to deduce the symbol contents
(data stream). In addition, you can detect phase errors very
clearly. But, in practical terms, this display is just a pretty show.
ACCUMulated, corresponds to the dots display but without their
being deleted before each new measurement. This makes it
possible to trace seldom occurring outliers (phase and magni-
tude).
Test results under remote control
IEEE Command String position
RESULt1 12345678901234567890
aaaaaaaaa;bbbbb;****
RESULt2 12345678901234567890
aaaaa;bbbbb;ccccc;**
10-36
Measurements
Result
a = TX power (incl. dimension)
b = Freq. error (Hz)
* = Reserved
a = Residual carrier power. (%)
b = RMS vector error
c = Peak vector error
* = Reserved