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Call 0345 2300 599The M2 Antennas 440-11X is a high-performance broadband Yagi antenna covering 420-450MHz.
Designed as part of M2’s compact “X” series, the 440-11X offers the same strong performance as its predecessor while using shorter boom sections to help keep packaging under 48in long. This helps reduce oversize shipping issues and also makes the antenna more practical for portable, temporary, or field installations.
The 440-11X replaces the popular M2 420-50-11 and is computer optimised to provide good gain, an excellent radiation pattern, and reliable broadband performance across its frequency range. It can be mounted either vertically or horizontally and is ideal for stacking two or more antennas where additional gain is required.
It is suitable for a wide range of 70cm applications, including ATV, OSCAR satellite work, FM, long-haul tropo, and general weak-signal use.
Key Features
- 11 element broadband Yagi antenna
- Covers 420-450MHz
- Part of M2’s compact “X” series
- Shorter boom sections help reduce oversize shipping issues
- Thicker wall boom sections for added strength
- More portable than previous long-boom versions
- Computer optimised for good gain and pattern performance
- Can be mounted vertically or horizontally
- Suitable for stacking two or more antennas
- Folded dipole feed system
- 50 ohm unbalanced feed impedance
- N female input connector
- 1kW power handling
- Lightweight but sturdy construction
Typical Uses
- 70cm amateur radio operation
- ATV
- OSCAR satellite use
- FM
- Long-haul tropo
- Weak-signal VHF/UHF work
- Portable and field installations
- Horizontal or vertical base station installations
- Stacked antenna arrays
Construction
The heart of the 440-11X is M2’s driven element module, designed for excellent weather resistance and power handling.
All connectors are O-ring sealed to the CNC-machined block, while the internal connections are sealed in silicone gel for long-term electrical reliability. The balun coax connectors are triple O-ring sealed, and key mechanical and electrical components are CNC machined from 6061-T6 aluminium.
All hardware is stainless steel, except for the U-bolts.
Specifications
| Specification | Details |
|---|---|
| Brand | M2 Antennas |
| Model | 440-11X |
| Frequency range | 420-450MHz |
| Gain | 13.44dBi |
| Front to back | 20dB typical |
| Beamwidth | E-plane: 34° / H-plane: 43° |
| Feed type | Folded dipole |
| Feed impedance | 50 ohms unbalanced |
| Maximum VSWR | 1.5:1 typical |
| Input connector | N female |
| Power handling | 1kW |
| Boom length / diameter | 60in / 1in |
| Maximum element length | 13-3/4in |
| Turning radius | 55in |
| Stacking distance | 34in high / 36in wide |
| Mast size | 2in nominal |
| Wind area | 0.6 sq ft |
| Survival wind speed | 100mph |
| Weight | 4lb |
| Shipping weight | 6lb |
Installation Notes
The 440-11X may be mounted for either vertical or horizontal polarisation, depending on the intended application.
For additional gain, two or more antennas may be stacked using the recommended spacing of 34in high and 36in wide.
As with any directional antenna, final performance will depend on installation height, feedline quality, mast position, surrounding structures, and correct alignment.
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.
