Cushcraft A4S
SKU Part Number: CUSH-A4S
£857.95 £714.96
Availability: In stock

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The A4S is the true, high performance tribander. 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. The A4S has pinned boom sections and formed aluminum brackets to keep elements straight under all conditions. Our solid construction keeps the A4S on the tower! Add 40 meters with A744 kit.

Frequency, MHz: 28, 21, 14
No. Elements: 4
Forward Gain, dBi: 8.9
Front to Back Ratio, dB: 25
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): 1.25-2.00 (3.18-5.08)
Wind Load, ft2 (m2): 5.50 (0.51)
Weight, lb (kg): 37 (16.8)


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If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

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Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link below and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk,