Butternut presents the model HF5B BUTTERFLY compact beam antenna for the 10, 12, 15, 17, and 20meter amateur bands! With elements only 12 ft 6 in (3.8 m) long and a turning radius under 7 ft (2.1 m), itpresents a low profile that allows it to be used in areas where other beam antennas would be restricted.

 



Five bands in a small, rotateable beam? Without lossy traps? Butternut has done it again... Especially for the amateur with restricted space this antenna yields a significant improvement over omni directional verticals. A good front/back and front/side ratio is helpful in suppressing QRM. For best performace this antenna should be erected at least 9m above ground. PL connector with stub feed, coax feed can be any length.

 

Technical Specifications

 

Gain

10m:

5 dBD

12m:

5 dBD

15m:

5 dBD

17m:

0 dBD

20m:

3 dBD

Front/Back ratio:

20 dB

Boom length:

1.8m

Element length:

3.8m

Height of vertical:

1.8m

Turning radius:

2.1 m

Weight:

10kg

Bandwidth at VSWR 2:1 or better:

10m: 1.5MHz
12m: entire band
15m: entire band
17m: entire band
20m: 200kHz

Wind load:

0.3m²

 

 

Manufacturers