Chameleon CHA B3D Broadband Base Dipole HF Antennas
SKU Part Number: CHA-B3D
The Chameleon CHA B3D Broadband Base Dipole is a simple, rugged and highly flexible HF antenna system designed for operators who want wide band...
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The Chameleon CHA B3D Broadband Base Dipole is a simple, rugged and highly flexible HF antenna system designed for operators who want wide band coverage without a complicated installation. It is an excellent choice for home stations, restricted spaces, portable operation, emergency communications and anyone needing a discreet antenna that can be adapted to real-world conditions.

Unlike traditional multi-band antennas that may require traps, band switching or regular adjustment, the CHA B3D is designed to provide broadband HF coverage when used with a suitable antenna tuner. The 60 Foot (~18.5m) model covers 80m to 6m, while the 120 Foot (~36.5m) and 146 Foot (~44.5m) versions cover 160m to 6m.

The CHA B3D can be installed as an inverted V, horizontal dipole, low-profile stealth antenna or portable field antenna. Its discreet wire design makes it suitable for locations where visibility matters, including urban gardens, smaller plots or areas where UK council planning considerations may make large, obvious antenna systems less practical.

Built using Chameleon’s tough 16 gauge tinned copper Kevlar PTFE wire, the B3D is designed for long-term outdoor use. It includes a matching transformer with SO-239 connection and is suitable for NVIS, regional and DX communications, depending on installation height, layout and operating conditions.

An antenna tuner is required on most frequencies.

Available Models

Model Coverage Total Length Leg Lengths
CHA B3D 60 3.5 to 54MHz, 80m to 6m 60 Foot (~18.5m) 2 x 30 Foot (~9m)
CHA B3D 120 1.8 to 54MHz, 160m to 6m 120 Foot (~36.5m) 2 x 60 Foot (~18.5m)
CHA B3D 146 1.8 to 54MHz, 160m to 6m 146 Foot (~44.5m) 2 x 73 Foot (~22.5m)

 

Available Models

Model Coverage Total Length Leg Lengths
CHA B3D 60 3.5 to 54MHz, 80m to 6m 60 Foot (~18.5m) 2 x 30 Foot (~9m)
CHA B3D 120 1.8 to 54MHz, 160m to 6m 120 Foot (~36.5m) 2 x 60 Foot (~18.5m)
CHA B3D 146 1.8 to 54MHz, 160m to 6m 146 Foot (~44.5m) 2 x 73 Foot (~22.5m)

Key Features

  • Broadband HF dipole antenna system
  • Designed for use with an antenna tuner
  • Available in 60 Foot (~18.5m), 120 Foot (~36.5m) and 146 Foot (~44.5m) versions
  • Covers 80m to 6m or 160m to 6m, depending on model
  • Suitable for fixed, portable and emergency communications use
  • Can be installed as an inverted V, horizontal dipole, sloper or low-profile setup
  • Discreet wire design for smaller gardens and less visible installations
  • Useful where planning permission or visual impact may be a concern
  • Suitable for NVIS, regional and DX operation
  • Built using rugged 16 gauge tinned copper Kevlar PTFE wire
  • Weather resistant construction for long-term outdoor deployment
  • SO-239 connection

Specifications

  • Product range: Chameleon CHA B3D Broadband Base Dipole
  • Antenna type: Broadband HF dipole
  • Frequency coverage, CHA B3D 60: 3.5 to 54MHz
  • Frequency coverage, CHA B3D 120 and 146: 1.8 to 54MHz
  • Power rating: 100W SSB, 50W CW, 25W digital modes
  • SWR: Typically 4:1 or less, subject to frequency, layout and installation
  • Connection: SO-239, UHF socket
  • Wire: 16 gauge tinned copper Kevlar PTFE
  • Installation options: Inverted V, horizontal, sloper or low-profile configuration

Installation Notes

For best results, install the CHA B3D as high and as clear of surrounding objects as possible. A single centre support can be used for an inverted V arrangement, making it a practical option for many home and field installations. Performance will vary depending on height, layout, nearby buildings, trees and ground conditions.

Shipping & Delivery

We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.

Delivery Information

Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.

Returns & Cancellations

To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.

Changed Your Mind?

Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.

You must notify us of your cancellation within this period and return the goods within a further 14 days.

Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.

You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.

Exceptions

Modified Equipment & Reversal Charges

Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.

ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.

 

Custom-Made Cable Assemblies

Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.

 

Software & Labour Charges

Labour and modification charges requested by the customer are non-refundable once the work has been completed.

Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.

Return Postage Charges

Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.

Standard Parcels

Royal Mail Return Label

£5.95

Per parcel

For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.

Larger Parcels

DPD Return Label

£7.95

Per parcel

For larger or heavier parcels and any shipments with batteries.

Collection Service

DPD Collection

£25.00

Per parcel

Available upon request for eligible addresses, subject to availability.

Prepaid return charges will be confirmed before booking and deducted from your refund.

These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.

Faulty or Incorrectly Supplied Goods

Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.

Refunds

Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.

Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.

Warranty Terms & Conditions

New Equipment Warranty

Minimum 2-Year Warranty

All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.

Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.

Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.

Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.

All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.

International Returns & Warranty

Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.

International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.

ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.

Need Help With a Return?

Our team can assist with returns, postage arrangements, modifications and warranty claims.

Nothing in these terms excludes or limits your statutory consumer rights.