ETS-Lindgren / ETS / EMCO 3101 Conical Log Spiral Antenna, 200 MHz to 1000 MHzRefurbished
The ETS-Lindgren EMCO 3101 is a circularly polarized broadband antenna covering the frequency range of 200 MHz to 1 GHz. The Conical Log Spiral antenna is designed specifically for EMI measurements and compliance testing as called for in various Military Standards.
The antenna is constructed of a fiberglass cone upon which two logarithmic spirals of 50-ohm coaxial cable are securely fastened. Outside windings improve heat dissipation. The coaxial connectors are located in the phenolic base plate of the cone. A 1/4–20 adapter for a tripod or other mounting configuration is attached to the antenna near its horizontal center of gravity or at the antenna base plate.
The Conical Log Spiral antenna receives both circular polarized and linear polarized fields (with a 3-dB variance for linear fields) under normal operating conditions.
The Model 3101 is right-hand wound, and transmit and receives a left-hand circularly polarized wave.
- Frequency Range: 200 to 1000 MHz
- Impedance: Matched to 50 Ohms
- Connector: Type N (f)
- VSWR: 2.4:1
- Assembled Dimensions: Length: 32.01 inches (81.3 cm); Diameter: 12.99 inches (33 cm)
- Weight: 9.92 lb (4.5 kg)