Tech Support:
www.steppir.com/support
Tel: 425.891.6134
Page 2
DB42 MonstIR PRO Specifications
Specifications
DB42 Element Yagi
Boom length
42 ft 8 in / 13.0 m
Boom outside diameter
1.75 in—3 in / 4.45—7.6 cm
Longest element
49 ft / 14.9 m
Turning radius
29 ft / 8.8 m
Weight
238 lb / 108 kg
Wind load
19.9 sq ft / 1.85 sq m
Wind rating
100 mph
Adjustable elements
5
Power Rating
3000w Key Down / *1500w on 80m (option)
Feed points
2
Frequency coverage
6.8 MHz—54 MHz (*3.5MHz w/ 80m option)
Control cable
25 conductor shielded, 22AWG
Gain / Front to
rear
by band
Gain, dBi
Forward DIR
Front to rear,
db forward
Gain, dBi
Reverse DIR
Front to rear,
dB reverse
80M (option)
1.7
NA
1.7
NA
40M
8.0
25.5
8.0
23.2
30M
9.0
12.4
9.0
12.4
20M
10.1
22.0
10.0
23.2
17M
10.8
23.2
10.7
21.9
15M
11.0
25.7
10.6
20.0
12M
11.9
24.1
10.4
8.9
10M
12.2
20.0
10.5
11.7
6M
5.0
2.0
5.0
2.0
6M w/passive opt.
14.0
25.0
NA
NA
DB42 with 6m passive option