ETS-Lindgren 3142B BiConiLog Antenna (Archived) - Manual (Page 14)

Typical Data without the End Plates MODEL 3142B BICONILOG™ ANTENNA
dB uniform field specification. In general, closer distances
require less power to create a given field strength.
TYPICAL DATA WITHOUT THE END
PLATES
Figure 1 shows typical 26-200 MHz VWSR for the Model
3142B.
Figure 2 shows typical Model 3142B 26-2000 MHz
antenna factors. Distance for the ANSI 3 and 10 meter
calibrations is measured from the antenna midpoint, while
for SAE 1 meter calibrations the distance is measured from
the antenna tip. Midpoint is defined as half the distance
between the small elements and the bow-ties, which is
about 45 cm from the small end tip.
Figure 3 shows typical Model 3142B 26-2000 MHz gain,
derived from the 3 antenna method antenna factors.
Figure 4 gives approximate input power required to
generate 1 V/m at 1 and 3 meters. For any other field
strength E, multiply power in watts by E2.
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© EMC TEST SYSTEMS, L.P. – MARCH 2002
REV C – PN 399229
Archived 09/23/10