| EMCO 3101 Conical Log Spiral
The EMCO 3101 Conical Log Spiral is made with spiral windings of coaxial cable attached to the outside of a
fiberglass cone. Outside windings improve heat dissipation. This cone is
attached to a delrin rod equipped with an aluminum base. The antenna mount
base accepts standard 1/4 in x 20 threads from a tripod.
The Model 3101conical log spiral antenna was designed by
the Department of Defense for MIL-STD-461E measurements. The original
drawings provide the basis for th Model 3101.
Once used exclusively for MIL-STD and SAE testing,
conical log spiral antennas are effective for other types of measurements
too. For example they can be used for close-in "quick-looks" to
find the spectral characteristics of RF emissions. For immunity testing,
conical log spirals generate reasonable field strengths with modest power
input. By placing conical log spiral antennas in a vertical position with
respect to the ground plane, they can also be used as omni-directional,
horizontally polarized antennas for electromagnetic site surveys.
Frequency: 200 MHz - 1 GHz
VSWR: 2.4:1
Max. Continuous Power: 100 W
Peak Power: 150 W
Impedance (Nominal): 50W
Connectors: Type N (F) |
