The antenna holder / balun VHBA 9123 with low loss transmission line transformer are primarily designed for the use with biconical elements such as BBA 9106 or BBAL 9136. It may also be used with rod elements as a dipole with improved bandwidth or collapsible biconical elements like FBAB 9177 or FBAL 9178.
| Frequency range: | 20-300 MHz |
| Connector: | 50 Ω N |
| Input Power: | 100 W |
| Holder length / diameter: | 0.58 m / 22 mm |
| Element fixture: | 10 mm |
| Holder / balun weight: | 1.1 kg |
Frequency Chart: VHBA 9123, 4:1 with different antenna elements
Overview Table: VHBA 9123, 4:1 with different antenna elements
| Antenna Element | Frequency Range [MHz] | Antenna Factor [dB/m] | Isotropic Gain [dBi] | Operation Mode | Pmax [W] | Le [m] | D [m] | Datasheet |
|---|---|---|---|---|---|---|---|---|
| BBA 9106 (biconical) | 30 - 300 | 8...20 | -8 ... -4 | TX | 100 | 1.36 | 0.52 | Datasheet |
| BBAL 9136 (biconical) | 20 - 200 | 4...16 | -11... -3 | TX | 100 | 1.98 | 0.57 | Datasheet |
| FBAB 9177 (open conical) | 30 - 300 | 9…20 | -14…1 | TX | 100 | 1.35 | 0.6 | Datasheet |
| FBAL 9178 (open conical) | 20 - 200 | 5…17 | -16…1 | TX | 100 | 1.9 | 0.9 | Datasheet |
Dimensions labeled:
- LH: The length of the antenna holder element.
- LE: The length of both conical element and balun (width)
- D: The diameter of the widest part of the conical elements.
