TETRA Filter Units

What Is TETRA?

TETRA stands for TErrestrial Trunked RAdio. TETRA is a digital professional two-way radio standard. Developed as a digital replacement to the larger mobile radio communication networks. There are two types of operators in the UK at present.

UK Emergency Services
The Home Office has chosen TETRA as a communications system Emergency Services including Police, Fire and Ambulance. Within Europe and the UK these services will operate in the 380-400MHz band for public safety users.

Private Mobile Radio
Private mobile Radio (PMR) networks, this includes handheld walkie talkies used by individuals, private companies and utilities such as Gas, Electric and Water services.

As use of TETRA grows there are cases of interference to UHF television reception. This can occur because of inadequate system screening or poor filtering above or below UHF on any of the older types of UHF only amplifiers or when the unwanted TETRA signal falls within the VHF/UHF passband of broadband signal amplifiers. Most interference problems come from amplifiers that are fitted in order to boost the television signal, they then amplify the unwanted TETRA signal resulting in TV picture and sound interference.

And the Solution Is?

You can minimise the problem by using good quality screened amplifiers and passive accessories. Products such as the Maxview MHF568TR masthead Amplifier or the Maxview BP7018 TETRA filter. These devices filter the signal rejecting the TETRA. They are fully screened to EN0083-2 with ‘F’ type RF connectors. If there are no other problems within the TV/radio installation, the TETRA interference problem can usually be resolved by fitting a Reject Filter.

The Maxview BP7018 is a high performance TETRA reject filter. Filtering out UHF TETRA below 470MHz and above 860MHz. The BP7018 will pass all VHF, DAB, FM and UHF TV signals with low insertion loss. Suitable for use indoors. Coaxial push on connections. More information on the Maxview BP7018 Tetra Reject Filer.

£9.99

This is the price you pay. There is no V.A.T or delivery charge to add.

Masthead BPF - Tetra Filter. With the introduction of Terrestrial Trunk Radio (Tetra) is has become apparent that in some areas it causes severe interference.
To overcome this problem Labgear has designed the TF111 Masthead BPF. This screened masthead filter has excellent rejection.

• Rejection @ 385MHz: >30dB
• Rejection @ 900MHz: >20dB
• Weatherproof outer plastic housings with foam cable seal
• Fully screened, sealed, die-cast modules
• F-connectors throughout
• Ideal for digital
• Fixing options: standard cable tie mast mount or flat surface fix
• Earth bonding terminals

£11.99

This is the price you pay. There is no V.A.T or delivery charge to add.

The Maxview MHF568TR is a high performance TETRA reject filter. Filtering out UHF TETRA below 470MHz and above 860MHz. The MHF568TR will pass all VHF, DAB, FM and UHF TV signals with low insertion loss. Suitable for use outdoors. F Plug connections. More information on the Maxview MHF568TR Tetra Reject Filer.

£17.99

This is the price you pay. There is no V.A.T or delivery charge to add.

The labgear MSA263LP Aerial Amplifier is designed for professional standard installations in lofts or roof spaces with no mains power or restricted mains power. The amplifer can be powered by the second unit through the RF cable. Two inputs (one UHF and one VHF) and six outputs. Digital satellite compatible, so the output from a satellite box can be distributed easily. the satelite box can even be controlled from any TV connected to any one of the amplifier's outputs (except the one used for power), using a magic eye remote control systems such as the Bluedelta Smart Eye or the SLx Link. Built in Tetra filter. Uses screw on F-plug connections. Two year manufacturer's guarantee. More information on the Labgear MSA263LP Aerial Amplifier.

£36.50

The price listed includes VAT and delivery to anywhere in the UK.

The labgear MSA283LP Aerial Amplifier is designed for professional standard installations in lofts or roof spaces with no mains power or restricted mains power. This eight output amplifer can be powered by the second unit through the RF cable. Two inputs (one UHF and one VHF) and eight outputs. Digital satellite compatible, so the output from a satellite box can be distributed easily. the satelite box can even be controlled from any TV connected to any one of the amplifier's outputs (except the one used for power), using a magic eye remote control systems such as the Bluedelta Smart Eye or the SLx Link. Built in Tetra filter. Uses screw on F-plug connections. Two year manufacturer's guarantee. More information on the Labgear MSA283LP Aerial Amplifier.

£44.50

The price listed includes VAT and delivery to anywhere in the UK.