Feig Electronic OBID i-scan ID ISC.M02 Installation Manual page 18

®
OBID i-scan HF
Use caution when the maximum value of the signal amplitude is reached at the minimum or maxi-
mum position of the trim capacitor (Fig. 10). This usually means the antenna is too severely de-
tuned by the surroundings and can no longer be fully compensated by the trim capacitor.
Fig. 10
After the antenna has bee tuned, check it again for maximum range and any communication gaps.
NOTE:
• Notwithstanding the possibility of retuning the antenna as described here, the distance
between the reader and the surrounding metal surfaces must be at least 3 cm. Note that
even other circuit boards may act like metal objects depending on how much copper
they contain.
FEIG ELECTRONIC GmbH
Installation
Labeling
Beschriftung
Minimum
Minimale
capacitance Kapazität
: Minimum and maximum position of the trim capacitor C65
Page 18 of 27
Maximum
Maximale
capacitance Kapazität
ID ISC.M02
M20301-4e-ID-B.doc