The design
The folding Hexbeam is a 2-element directive antenna for five amateur bands (20/17/15/12/10m band, 6m band optional). It consists of wire elements attached to a support structure in a concentric way. The center post carries the support cords and is a coaxial feeder for the drivers. The driver/reflector arrangements are fixed to the fibreglass spreaders.
The feedpoint cord support is molded onto the center post. Connector SO-239 (N type socket optional at no extra cost)
The hub takes up six swivel spreaders and electrically isolates the center post from the mast or rotator underneath
The spreader sections are connected with locking swivel joints
Click to enlarge Photos:
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Specifications
| Impedance | 50 Ohms |
| Connector | UHF socket (SO-239), N type socket on request |
| Gain | max. 5-6 dBi in free space (3-4 dB over dipole) |
| F/B ratio | peak >20 dB (varies by band) |
| SWR | <2 over the entire band (20/17/15/12/6m), 10m band: 28-29.3 MHz |
| Rated power | 1500 watt |
| Elements | high strength and flexible tinned stranded copper wire 1.0 mm² (AWG 18), black PVC insulation |
| Spreaders | flexible and sturdy fiberglass rods, UV resistant, 10 mm (~0.4″) diameter |
| Support cords | 1.5 mm Dyneema® rope, UV resistant |
| Center post | high quality aluminium tubing 30 x 2 mm (~1.2″ x 0.08″) |
| Mounting hardware | all stainless steel A2 |
| Other plastic parts | injection molded from PBT (polybutylenterephthalate) black, high impact, UV resistant |
| Turn radius | approx. 3.20 m (10.6 ft.) |
| Weight | approx. 6 kg (13 lbs) |
| Wind load area | approx. 0.25 m² (2.7 sqft.) |
| Size when collapsed | approx. 1.15 m (45″) x 15 cm (6″) x 15 cm (6″) |
| Antenna fixture | fiberglass rod 5″ x 1″ O.D., e.g. fits into telescope masts with top section of 26 mm (1″) I.D. |
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