Cobweb 7 30-6m
1250,00 zł excluding VAT & Shipping
1 in stock
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Description
Multiband cobweb antenna works on 7 HF bands and up to 1000w/800w SSB
The processing time is 3 days, but it is worth asking first.
Bands are 10, 14, 18, 21, 24, 28, 50 MHz
Perfect for CW and digital broadcasting enthusiasts e.g. FT-8
This antenna has sides of the square 3,8 x 3,8 m, and is very useful where space is limited.
It’s design is very strong and robust, and is resistant to strong winds.
The antenna is contructed from glass fibre rods, aluminum, stainless steel and galvanized steel and has a sealed connector box resistant to rain and UV rays to keep the balun and connections from the elements.
The antenna has an impedance of 50 ohm.
The antenna works well on DX and as a QRP station.
It is pre-tuned to different bands at a height of 5 metres above the ground. Raising the antenna above 5m will generally see SWR decrease.
This antenna is omni-directionally so you do not need a rotator.
It is made up of folded half-wave dipoles for 30,20,17,15,12,10,6 meters bands.
Polarisation is horizontal and is naturally resistant to some electrical interference and static.
Large system efficiency to 95%.
Technical details
Socket — UC1 / SO239
Horizontally polarised
Radiation Omni-Directional
Max power supplied in SSB 800/1000 Watt PEP
Antenna max gain 5 dBi
Minimum SWR 1.1: 1
Can accommodate any mast up to 50mm in diameter.
Weight 6 kg.
Square sides of 3,8m
Turning radius 2,7m
Additional information
| Weight | 6 kg |
|---|---|
| Dimensions | 150 × 16 × 16 cm |
Philippe – F1UOD –
Very good antenna. Connecting it with a coaxial choke balun will sharpen reception and transmission. It can withstand winds of up to 130 km/h (80 mph) in the heights of Toulouse (Southern winds coming from the Mediterranean).
I had problems with abrasion and HF burns from the turnbuckles, which I resolved with:
– Vectran halyard (Dyneema SK78, 2 mm, Olive Green, 10 m, Strong Rope for Boats, Yachts, and Camping – Better than Kevlar)
– Fiberglass and Silicone Insulating Sleeving, ø 2.5 mm, cut into 10 cm pieces.
Slide the Vectran into the tube that will be in contact with the antenna wire.
Now it can withstand 260°C (500°F) continuously, 650°C (1292°F) peak temperatures, and the insulation exceeds 15 kV, even in the rain thanks to the Vectran.
73 from F1UOD Philippe @Toulouse