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Call 0345 2300 599The OptiBeam OB16-5 is a large, high-performance 16 element multiband HF Yagi covering the 20m, 17m, 15m, 12m, and 10m amateur bands.
Designed for serious fixed-station operators, the OB16-5 provides strong directional performance across five popular HF DX bands. With a 10.10m boom, 16 elements plus 8 hidden sleeves for 12m and 17m, and a 5kW power rating, it is built for demanding DXing, contesting, and high-power station use.
The antenna uses a single 50 ohm coax feedline, helping to simplify installation while delivering high gain, strong front-to-back performance, and low VSWR across the supported bands.
Key Features
- High-performance 16 element HF Yagi
- Covers 20m, 17m, 15m, 12m, and 10m
- 16 elements plus 8 hidden sleeves for 12m and 17m
- Strong gain across all supported bands
- Excellent front-to-back performance
- Low VSWR across the supported bands
- 5kW power rating
- Aluminium tubing element construction
- Single 50 ohm coax feedline
- UHF female / SO-239 feed connection
- 10.10m boom length
- 10.98m maximum element length
- 7.25m turning radius
- Heavy-duty 75kg construction
- Suitable for permanent mast or tower installations
- Ideal for serious DX and contest stations
Band Performance
| Band | Gain dBd | Gain dBi | Front-to-Back Ratio |
|---|---|---|---|
| 20m | 7.1dBd | 14.5dBi | 18dB |
| 17m | 7.2dBd | 14.7dBi | 20dB |
| 15m | 7.3dBd | 14.9dBi | 22dB |
| 12m | 7.0dBd | 14.8dBi | 24dB |
| 10m | 7.7dBd | 15.5dBi | 20dB |
VSWR Performance
| Band | Frequency Points | VSWR |
| 20m | 14.00 / 14.19 / 14.35MHz | 1.3 / 1.1 / 1.2 |
| 17m | 18.07 / 18.14 / 18.17MHz | 1.3 / 1.1 / 1.2 |
| 15m | 21.00 / 21.25 / 21.45MHz | 1.5 / 1.1 / 1.5 |
| 12m | 24.89 / 24.93 / 24.99MHz | 1.3 / 1.1 / 1.3 |
| 10m | 28.00 / 28.50 / 29.00MHz | 1.5 / 1.1 / 1.5 |
Specifications
| Specification | Details |
| Brand | OptiBeam |
| Model | OB16-5 |
| Product type | 16 element 5 band HF beam antenna |
| Antenna type | Yagi |
| Supported bands | 20m / 17m / 15m / 12m / 10m |
| Number of elements | 16, plus 8 hidden sleeves for 12m and 17m |
| Active elements | 4 / 4 / 4 / 4 / 8 |
| Element material | Aluminium tubing |
| Power rating | 5,000W |
| Feedline | 1 x 50 ohm coax |
| Feedpoint impedance | 50 ohms |
| Feedline connection | UHF female / SO-239 |
| Maximum element length | 10.98m / 36.02ft |
| Boom length | 10.10m / 33.14ft |
| Turning radius | 7.25m / 23.79ft |
| Wind load at 130km/h | 1,757N |
| Wind surface area | 2.21 sq m / 23.7 sq ft |
| Weight | 75kg / 165.3lb |
| Quantity | Sold individually |
Typical Uses
- Fixed-station HF operation
- Upper HF DXing
- HF contesting
- High-power amateur radio stations
- Operators wanting a serious 20m to 10m beam
- Permanent tower installations
- Stations requiring strong directional performance across multiple bands
Installation Notes
The OB16-5 is a large, heavy-duty HF beam intended for permanent installation on a suitable mast or tower. Please ensure that your tower, mast, rotator, mounting hardware, and support structure are suitable for the antenna’s size, weight, boom length, turning radius, and wind load.
As with any large HF Yagi, final performance will depend on installation height, surrounding structures, feedline quality, grounding, and correct assembly.
Important Note
This listing is for the OptiBeam OB16-5 antenna only. Mast, rotator, coaxial cable, mounting hardware, and other station accessories are not included unless stated otherwise.
Please check that your installation site, rotator, and support structure are suitable before ordering.
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]