EM-2115 APPENDIX E ACCESSORY DATA
(EM2115E-3)
Connector:
Type BNC, female.
b. Mechanical
Length:
129.8 cm (51.0") tip-to-tip.
Diameter:
51.0 cm (20.0") maximum.
Depth:
54.6 cm (21.5") including balun.
Weight:
2.7 kg (6 lbs).
E-2.2.2 EM-6912A Description
The EM-6912A performs EMI measurements to MIL-STD, government, commercial and
other specifications from 20 to 300 MHz.
The biconical elements are made from aluminum rods, joined to the end pieces by tack
welds. In addition, each element cage has a cross piece that connects the center element to an
outer element. The elements mount in a balun network, fabricated from PVC, containing the nec-
essary impedance-matching components.
Each series of antennas is calibrated during manufacturing, with the calibration data at
1,3, and 10 meters included in the manual as gain and antenna factors vs frequency for use in
Specification Compliance Testing.
E-2.2.3 EM-6912A Applications
The EM-6912A Biconical Antenna performs radiated emissions and susceptibility com-
pliance testing to the specifications/requirements of FCC Part 15 and 18, VDE 0871 and 0875,
MIL-STD-461 Method RE02, plus other commercial, military and government EMI specifica-
tions.
E-2.3 EM-6940 Log Conical Antenna
E-2.3.1 EM-6940 Specifications
a. Electrical
Frequency Range (calibrated):
200-1000 MHz.
Calibration Factor Chart furnished with each antenna.
Output Impedance:
50
, nominal.
Average Power Gain:
2.75 dB.
Содержание EM-2115
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