Cushcraft A-4S Triband 4 Element Beam Antenna

MPN: A-4S

$1,409.00

A-4S Four Element Beam – 10, 15 & 20 Meters

In stock

SKU: 9941 Category:

Please note: Due to the size of this antenna, it can only ship via UPS.

A4S is the true, high performance tri-bander. Precisely tuned high-power traps, carefully selected element lengths, and proper spacing combine to make the A4S the preferred antenna for your HF work! This is the premium antenna with all the features that you want. High gain, low SWR, and wide bandwidth keep the contacts coming in. All U-bolts, clamps and hardware are stainless steel. A4S has pinned boom sections and formed aluminum brackets to keep elements straight in all conditions. Cushcraft’s solid construction keeps the A4S on the tower! Add 40 meters with A-744 kit.

Beam, Triband, 4 element, 10, 15 , 20M

Weight 38 lbs
Dimensions 85 × 7.5 × 5.5 in
Brand

Cushcraft
Manufacturer Part Number A-4S

Product Specifications

Cushcraft A-4S Specifications

Frequency, MHz: 28, 21, 14
No. Elements: 4
Forward Gain, dBi: 8.9
Front to Back Ratio, dB: 25
SWR 1:2:1 Typical:
2:1 Bandwidth KHz: >500
Power Rating, Watts PEP: 1500
3 dB Beam Width, Deg. E Plane: 58
Boom Length, ft (m): 18 (5.48
Boom Diameter, In (cm): 2 (5.10)
Longest Element, FT (m): 32 (9.75)
Element Center Dia, in (cm): 1.25 (3.18)
Turning Radius, ft (m): 18.4 (5.49)
Mast Size Range, in (cm): 1.25-2 (3.18-5.08)
Wind Load, ft2 (m2): 5.50 (0.51)
Weight, lb (kg): 37 (16.8)

Product Guides & Documentation

Cushcraft A-4S Install Instructions (pdf)