High degree of symmetry, accurate calibration data, outstanding workmanship, and low losses make the VHA 9103 a leading balun (holder) in the antenna market. Instead of using two sets of telescopic elements, these biconical elements may be used: BBA 9106, BBAL 9136, BBAK 9137, BBVK 9138 (ordered separately).
Or collapsible biconical elements like FBAL 9178 or FBAB 9177 may be used (ordered separately).
Thanks to the conical elements (ordered separately), the 1:1 Balun/Holder can be used as a broadband antenna without a frequency-dependent extension length adjustment.
Or collapsible biconical elements like FBAL 9178 or FBAB 9177 may be used (ordered separately).
Thanks to the conical elements (ordered separately), the 1:1 Balun/Holder can be used as a broadband antenna without a frequency-dependent extension length adjustment.
Like most Schwarzbeck antennas, the VHA 9103 is mounted on its 22 mm tube with an indexing ring for horizontal and vertical polarization, e.g., when inserted into the movable antenna holding box of the detachable mast system model AM 9104 for antenna heights from 0.4 to 4 m.
At the rear end of the VHA 9103, a high-quality female N-connector provides contact to the 10 m long coaxial antenna cable AK 9513. The cable loss is documented for correcting field-strength or ERP calculations.
| Max. Power rating: | 10 W |
| Length: | 530 mm |
| Weight: | 930 g |
| Connector: | N – female |
Frequency Chart: VHA 9103 B, 1:1 with different antenna elements
Overview Table: VHA 9103 B, 1:1 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 | 6…22 | -20…1 | RX | 15 | 1.32 | 0.52 | Datasheet |
| BBAL 9136 (biconical) | 20 - 200 | 3…17 | -20…1 | RX | 15 | 1.94 | 0.57 | Datasheet |
| BBAK 9137 (biconical) | 45 - 450 | 3…24 | -17…1 | RX | 10 | 0.92 | 0.35 | Datasheet |
| BBVK 9138 (biconical) | 60 - 600 | 12…29 | -17…1 | RX | 10 | 0.72 | 0.26 | Datasheet |
| FBAB 9177 (open conical) | 30 - 300 | 7…21 | -20…2 | RX | 15 | 1.25 | 0.6 | 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.
