Date:
09-May-2019
Product name
RTX2018
File
: RTX2018 User Manual 1.0.docx
Ref.: FHA
Page: 23 of 34
This document and the information contained is property of RTX A/S, Denmark, and should be regarded as confidential.
Unauthorized copying is not allowed. The information in this document is believed to be correct at the time of writing. RTX A/S
reserves the right at any time to change said content, circuitry and specifications.
The “Trigger Offset”
is the offset from the “Expected Power” to the trigger level. A good value
would be approx. -30 to -20 dB relative to the
“
Expected Power
”
.
Please note that if the
“
Expected Power
”
is much higher than the real TX power level and the
Trigger Offset value is low e.g. -6 dB, there will be no trigger event as the instantaneous TX
power level will never be above the trigger level.
The RTX2018 requires that there is a “Trigger
G
ap” befo
re the trigger event of minimum 10
us. The power i
n the “Trigger Gap” should be below the trigger level.
To work as intended, it
is necessary that the preamble is captured to enable the demodulation.
TX GFSK and TX PSK tester setup details are shown in Figures 12 and 13 below.
Figure 12. TX GFSK tester setup details
