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Call 0345 2300 599The HyEndFed HF Bandpass Filters are designed to reduce strong signals outside the selected amateur band, helping to improve receiver performance and reduce interference between nearby stations.
Available for 10m, 15m, 20m, 40m, and 80m, each filter passes the required amateur band while providing attenuation to signals outside that band.
On receive, reducing strong out-of-band signals lowers the load placed on the receiver front end and mixer, helping to reduce unwanted mixing products and improve overall reception.
On transmit, the filter also helps suppress unwanted out-of-band emissions, reducing the potential for interference to other nearby stations.
These filters are particularly useful for contest stations, Multi/Multi, Multi/2, and SO2R installations, where several radios may be operating simultaneously on different bands.
Available Bands
- 10m
- 15m
- 20m
- 40m
- 80m
Key Features
- High-performance HF bandpass filter
- Available for 10m, 15m, 20m, 40m, and 80m
- Reduces strong out-of-band signals
- Helps improve receiver performance in high-signal environments
- Reduces the chance of unwanted mixer products
- Helps suppress out-of-band transmitter emissions
- Particularly useful for contest and multi-radio stations
- Suitable for Multi/Multi and Multi/2 stations
- Useful for SO2R operation
- Up to 1000W PEP power handling
- High-quality ATC ceramic capacitors
- Designed for low insertion loss
- Solid aluminium waterproof enclosure
- SO-239 connectors
- 50 ohm impedance
Contest and Multi-Radio Operation
Bandpass filtering becomes particularly important when two or more stations are operating in close proximity.
In a Multi/Multi, Multi/2, or SO2R station, one radio may be transmitting while another is receiving on a different amateur band. A suitable bandpass filter helps reduce the amount of unwanted RF from the transmitting station reaching the receiver on the other band.
This can make it easier to search for multipliers or monitor another band while transmitting elsewhere.
Competition Versions
Competition variants of the HyEndFed bandpass filters are designed with significantly steeper filter skirts, providing greater attenuation outside the wanted passband.
These versions are intended for demanding RF environments where stations may be operating very close together and additional band-to-band isolation is required.
Construction
The filters are housed in a strong waterproof aluminium enclosure and use high-quality ATC ceramic capacitors.
These components help minimise insertion loss while allowing a maximum power handling of up to 1000W PEP.
Each filter is fitted with SO-239 sockets and is normally installed in the antenna feedline using a short coaxial patch lead.
Typical Installation
The filter should be installed in the RF path for the required band.
A typical high-power installation would be:
Transceiver → Amplifier → HyEndFed Bandpass Filter → Antenna
The filter is normally positioned after the amplifier and before the antenna.
Always ensure that the filter selected corresponds to the amateur band being used before transmitting.
Specifications
| Specification | Details |
|---|---|
| Brand | HyEndFed |
| Product type | HF bandpass filter |
| Available bands | 10m, 15m, 20m, 40m, 80m |
| Impedance | 50 ohms |
| Maximum power | 1000W PEP |
| Connectors | 2 x SO-239 |
| Capacitors | High-quality ATC ceramic |
| Enclosure | Waterproof aluminium |
| Dimensions including connectors | 138 x 64 x 58mm |
| Installation position | After amplifier and before antenna |
Important Note
Each filter is designed for a specific amateur band. The correct filter must be selected and connected before transmitting.
These are passive RF filters and do not automatically switch between bands. Multi-band stations will therefore require either manual reconnection or a suitable external switching system where appropriate.
Short coaxial patch leads, antenna switches, amplifiers, radios, and other accessories are not included unless specifically stated.
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.