OBID i-scan
®
Mounting Instruction
ID ISC.ANT340/240-A / -B
FEIG ELECTRONIC GmbH
Page 22 of 28
M10101-3de-ID-B.doc
E N G L I S H
Please note the following additional recommendations:
•
The antenna connection cable may not be shortened or extended
•
The antenna cable must have a minimum distance of 30cm (11,81inch) to parallel routed, cur-
rent lines.
After assembly is complete you can check for proper antenna function using the transponder. At a
minimum separation of 20 cm from metal and a 45mm x 76 mm transponder oriented parallel to
the antenna, you should be able to achieve a range of at least 30 cm vertical over the center of the
antenna.
Otherwise the following points should be checked:
•
Is the antenna installed close to any metal (Minimum distance 20cm).
•
The tuning of the antenna impedance of 50
Ω
. This must be in a range of 50 Ohm ± 15
Ohm, Phase 15°.
•
See page 24 How to measure the voltage standing wave ratio (VSWR)