Pre-Assembled Spiderbeam 20-17-15m Yagi kit (HEAVY DUTY "Low Sunspot" Version)

Bands: 20m / 17m / 15m
Nr. of Elements: 3 / 3 / 3
Forward Gain at 10m height [dBi]: 11.7 / 11.8 / 12.0
Front/Back ratio [dB]: 15-20 / 25-30 / 20-30
SWR: < 1.5 / < 1.5 / < 1.7
Max. Power: 2000 W PEP / balun is included
Impedance: 50 Ohms / single feedline
Boom length: 10m (33 ft)
Turning Radius: 5m (16 ft)
Wind load area: 0.35 sq-m (3.8 sq-ft)
Weight: 10.7kg (23 lbs)
Transport Size: 120x27x18cm (47x11x7 inch)

The Heavy Duty Spiderbeam is a specially reinforced version, optimized for permanent installation at home (see chapter 4 of our construction guide PDF). Doubling the wall thickness of the aluminium and fiberglass parts added a lot of extra ruggedness to the design, making it strong enough to permanently survive severe weather conditions for many years. All parts are made of high quality materials resistant to weather, UV rays and corrosion.

The well proven electrical concept remains unchanged: 3 monobanders are interlaced on one boom, forming a highly efficient 3-band yagi. At 10.7kg this full size beam is still a lightweight, compared to many other permanent yagis in the same performance class.
This 3-band version is an excellent choice for the low sunspot years, when 12m and 10m might be closed most of the time. The performance on 17m is enhanced by integrating an additional director element.

ATTENTION: this is the partially prefabricated antenna. The wire set was measured, cut and pre-assembled by hand to be able to attach it to the spreaders. You will receive all components and the complete wire set ready wound on a plastic spool. This saves you the hours of preparation and you can devote yourself entirely to the construction of the antenna on site.
Info: This pre-assembly means a few hours of pure manual work.
The pre-assembled wire set can therefore take 1 week or longer, depending on demand and capacity utilization in production.
(please enquire before/when ordering)

Welcome aboard. Over 1000 Spiderbeams are already installed worldwide.
Get yours today and become a happy Spiderbeam fan!

Further informations to be found here: Documents, Tips and Constuction Guides 

For setup, tips and modifications besides the manual please also visit the tutorial website of our senior consultant and experienced HAM Rick DJ0IP here
He collects tips for beginners and advanced users and great instructions for special versions and special requirements.