Established in 2020 as an RF Technology research and development company, and officially launched in 2025, Multicoupler Limited is a UK-based Manufacturer, Importer and Master Distributor of affordable, professional RF distribution equipment for the two-way radio industry.

They focus on solving one of the most common challenges in modern radio systems: efficiently combining, filtering, and distributing multiple repeaters onto a single antenna - without compromising performance, reliability, or compliance.

Multicoupler products are engineered to meet real-world site requirements, from compact community repeater installations to demanding commercial and public-safety environments.

About Mutlicoupler

A clear commitment to practical engineering and transparent specifications, Multicoupler antenna combiners, duplexers, and RF accessories balance performance with value.

Multicoupler HC Series combiners and ND Series notch duplexers are designed for immediate deployment without waiting for Ofcom to issue complex licenses.

All UHF combiners and duplexers are pre-tuned for Ofcom Simple Site Licence frequencies - allowing systems integrators and dealers to deploy repeater systems quickly and confidently with mostly no on-site adjustment.

Explore our range of duplexers, designed to let your system transmit and receive through a single antenna with reliable signal isolation and performance ...

Products

ND-UHF-30

Multicoupler ND-UHF-30 is a 30W UHF band reject "notch" duplexer designed to allow a two way radio repeater (signal booster) to transmit and receive on the a single antenna with excellent TX/RX isolation.

ND-VHF-30

This notch duplexer rejects the frequency unwanted on the port used - the port used for receive (RX) rejects the transmit (TX) signal and port used for transmit rejects the receive signal. This ensures there is no crosstalk between TX and RX and allows a repeater to use a single antenna.

• Freq. Range*: 440-470 MHz

• Freq. Split*: 5-20 MHz

• Power: 30 W

• Isolation: ≥ 75 dB

*Depends on model.

Multicoupler ND-VHF-30 is a 30W band reject "notch" duplexer designed to allow a two way radio repeater (signal booster) to transmit and receive on the a single antenna with excellent TX/RX isolation.

This notch duplexer rejects the frequency unwanted on the port used - the port used for receive (RX) rejects the transmit (TX) signal and port used for transmit rejects the receive signal. This ensures there is no crosstalk between TX and RX and allows a repeater to use a single antenna.

• Freq. Range*: 136-174 MHz

• Freq. Split*: 4-15 MHz

• Power: 30 W

• Isolation: ≥ 75 dB

*Depends on model.

ND-UHF-50

Multicoupler ND-UHF-50 is a 50W UHF band reject "notch" duplexer designed to allow a two way radio repeater (signal booster) to transmit and receive on the a single antenna with excellent TX/RX isolation.

ND-VHF-50

This notch duplexer rejects the frequency unwanted on the port used - the port used for receive (RX) rejects the transmit (TX) signal and port used for transmit rejects the receive signal. This ensures there is no crosstalk between TX and RX and allows a repeater to use a single antenna.

• Freq. Range*: 440-470 MHz

• Freq. Split*: 5-20 MHz

• Power: 50 W

• Isolation: ≥ 80 dB

*Depends on model.

Multicoupler ND-VHF-50 is a 50W band reject "notch" duplexer designed to allow a two way radio repeater (signal booster) to transmit and receive on the a single antenna with excellent TX/RX isolation.

This notch duplexer rejects the frequency unwanted on the port used - the port used for receive (RX) rejects the transmit (TX) signal and port used for transmit rejects the receive signal. This ensures there is no crosstalk between TX and RX and allows a repeater to use a single antenna.

• Freq. Range*: 136-174 MHz

• Freq. Split*: 4-15 MHz

• Power: 50 W

• Isolation: ≥ 80 dB

*Depends on model.