Date:
09-May-2019
Product name
RTX2018
File
: RTX2018 User Manual 1.0.docx
Ref.: FHA
Page: 20 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.
5.2.5
DUT Control
The “DUT COM Port” field is a drop
-down menu to select the COM port number used for the
DUT communication. The drop-down menu will be populated with the existing COM ports
during
program launch, or by pressing the “Refresh” button next to the drop
-down menu. The
(Refresh) button next to the “DUT Interface” text will verify th
e communication link with
the DUT. This is done by sending a “IsTargetConnected()” call to the DUT. If this is successful,
a green connected icon appears; if not a red icon appears.
5.2.6
BER/FER Measurements
The idea behind the BER/FER measurement is that the RF generator transmits a known, fixed
packet. The firmware in the DUT should recognize this packet. So, when the DUT receives a
packet it can compare the received packet with the expected pattern and calculate the
received BER.
If the DUT is using an RTX firmware
(
Note 1
)
, the RTX2018 GUI can control the BER/FER
measurement using the controls shown in Figure
9
9 below.
Figure 9. RX measurement detail
When the BER/FER measurement function in the RTX firmware is called, it will try to receive
a number of frames. This number of frames is
controlled via the “Number of Frames” slider
;
alternatively, by entering the number in the box to the right. It is also possible to increment
or decrement the number using the
“+”
or
“
-
“
button.
The BER measurement functionality in the firmware has an antenna selection function
“Antenna”
for control of the antenna selection of the DUT for the BER measurement.
