What is ETS 3121D?
Precision Dipole Antenna from ETS-lindgren, USA The ETS 3121D is a tunable dipole antenna that operates over the frequency range of 30MHz-1GHz and can be used for a wide variety of standard tests for military, defense, and other applications. Includes four removable antenna oscillators of different frequencies, DB-1, DB-2, DB-3 and DB-4. Antenna center position does not change when changing polarization direction.
Technical data of the ETS 3121D:
| Frequency range: | 30MHz-1GHz |
| DB-1. | 30MHz-60MHz |
| DB-2. | 60MHz-140MHz |
| DB-3. | 140MHz-400MHz |
| DB-4. | 400MHz-1GHz |
| Impedance: | 50 ohm |
| Maximum input power: | 50W |
| VSWR. | <1.6:1 |
| DB-1 | Length: 68.25cm |
| Width: 41.91cm min. 426.72cm max. | |
| Weight: 1.07kg | |
| DB-2 | Length: 55.88cm |
| Width: 41.91cm min. 327.66cm max. | |
| Weight: 1.07kg | |
| DB-3 | Length: 52.07cm |
| Width: Minimum 35.56cm. Maximum: 124.46cm. | |
| Weight: 1.07kg | |
| DB-4 | Length: 48.89cm |
| Width: Minimum 13.97cm. Maximum: 45.72cm. | |
| Weight: 1.07kg |
ETS 3121D Antenna Gain and Antenna Factor Diagrams
Antenna Gain and Antenna Factor Corrections for ETS 3121D DB1 and DB2
Antenna Gain and Antenna Coefficient Corrections for ETS 3121D DB3 and DB4
