Spiderbeam 20-17-15m Yagi kit (HEAVY DUTY)
HEAVY DUTY 3-band antenna kitspecially reinforced yagi for permanent installation
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 / 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.
Putting together this antenna kit will be a fun and educational project. It contains all the necessary parts to make a 100% complete antenna, as described in the construction guide. Nothing beats the satisfaction of cracking pile-ups with an antenna you built with your own hands!
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
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