Operating Manual HG G-98830YA | English, Revision 02 | Date: 21.06.2021
81
Troubleshooting – Chapter 14
If you want to adjust the antenna to environmental influences, you can try to readjust
the positioning thresholds and tune the current consumption of the antenna to a
maximum or activate the Autotune function (see 10.2.7 „(F)requency & Antenna
Tuning“ on page 60).
For the time being, adjust the positioning thresholds so that a signal that is up
to 50% weaker would still trigger a positioning pulse (see Figure 37 on page
82).
A normal transponder crossing, recorded as a CSV file, results in the following table
in e.g. Excel®.
Figure 35
Transponder reading as CSV-file imported into Excel with comments
NOTICE
Transponder signal is not output!
A new transponder is only read if the reference voltage falls below the set
threshold once! If the positioning thresholds are set too low, the antenna may
receive new transponder signals but not output them.
Set the positioning thresholds on the basis of the recorded values in such a
way that reliable position detection is possible, but no faulty triggering occurs
due to transponder side lobes that always occur.
To do this, select approximately half the distance between interference
pulses (such as side lobes, see Figure 36 on page 82) and the peak value for
read transponders, so that reserves are available in both directions.
Interpretation of data
Does code_count decode„fluidly“?
Does CODE_OK appear shorly after
TRANSPONDER_IN_FIELD?
Is the positioning pulse generated after
the sign change?
Does the reference voltage fall below
the set threshold after the crossing?
(here e.g. 300 units)
See also warning notice below.
In the example the threshold was
300 units, therefore the
side lobe of the transponder
had already been evaluated. Afterwards
the evaluation temporarily dropped
again.
