This product has been discontinued. Datasheet EFS 9219
EFS 9219 – Active Antenna Holder
The active antenna holder EFS 9219, with high sensitivity (1 µV/m to 3 V/m), is designed for frequency-selective, precise measurement of very low electric field strength. BBUK 9139 biconical elements are required.
When used with BBUK biconical elements, it achieves an impressive antenna factor of 20 dB/m. For different antenna factors, elements of different shapes and sizes may be used if they fit in the clamps.
Optional Amplifier: BBV 9721 amplifier available for enhancing performance with high amplification of 20 dB and wide dynamic range
| Frequency range | 9 kHz – 30 MHz |
| Antenna factor | 20 dB/m |
| Upper measurement limit | 130 dBmV/m (3 V/m) |
| Output impedance | 50 Ω nom. |
| Output connector | N |
| Power supply | Rechargeable NiMH, 7.2 V/1000 mAh |
| Battery indicator | LED red |
| Length of dipole including holder and 2xBBUK biconicals | 35.5 cm |
| Dimensions of the holder WxHxD without n-connectors and clamps | 53x118x50 mm |
| Enclosure | Insulating material |
| Weight of holder and biconicals | 0.65 kg |