Mounting
English, Revision 05, Date: 28.11.2016
9
sumption of the antenna is not constant or via unsteady reception voltages. Tests
with the antenna HG G-98810-C showed that gaps of 300 mm (in longitudinal and
lateral direction) had no effect. If the distance between two antennas shrinks to
200 mm the sum voltage decreases by up to 6 %. Placing two antennas only
100 mm apart the sum voltage sways by +5% to -15%. Decoding and distance
calculation still work under those conditions but there is a risk, that set thresholds
are undershot.
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Steel reinforcement structures located very close to the surface of the runway may
transform the Antenna energy in the ground to deviating locations in such a way
that the measured Transponder position is a faulty one.
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For the complete mechanical drawing please see annex G on page 67.
