Filters

TVI filters to fit on your radio and TV, plus power lead filters to suppress noise in your power cable.

TVI Filters

These are used to try to eliminate interference caused by radio transmissions to TV's, HiFi's etc.
Low Pass filters fit on the radio, which is obviously easier but unfortunately often ineffective.
High Pass and Notch filters fit on the affected TV. These are usually much more effective, but unfortunately it can work out expensive if you are interfering with several TV's.

Power Filters

These fit in the 12V power lead to your radio to try to eliminate any electrical interference which is reaching the radio via the power lead.
Usually these are quite effective against alternator noise, but not against interference generated by much of the electronics in modern vehicles.
If the interference is reaching your radio through the antenna system, then obviously these filters will make no difference at all.

High Pass Filter

X07
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High Pass Filter with Braid Breaker

These filters are certainly the most likely to cure your problem. Simply plugs into the back of your TV.

This is probably the best filter to try first, because it will eliminate most types of interference. Designed mainly to reject all signals below 30MHz.

Rejection of signals:

  • Outer: >25dB @ 30MHz and below
  • Inner:  >60dB @ 100MHz and below
  • Insertion Loss:  <2dB @ UHF

Zetagi Low Pass Filter

X11
SOLD OUT

A higher power low pass TVI filter.

Maximum input power: 300W

Frequency: 0-30MHz

Samlex Low Pass Filter

X11S
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Low pass TVI filter, very similar to the Zetagi F27 filter which is now discontinued.

  • Frequency: 0-30MHz
  • Max Power:  300W
  • Insertion Loss:  0.25dB
  • Connections:  SO239  (PL259)
  • Size:  110 x 33 50mm

RM 27/586 Low Pass Filter

X586
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High power low pass TVI filter from RM of Italy.

Frequency:  3-30MHz
Maximum Input:  500W Pep
Insertion loss:  0.5dB Max
Attenuation:  >80dB (60-900MHz)

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4G LTE in-line signal filter designed to eliminate interference and channel loss on TV's from 4G mobile signals.

  • Fully shielded for minimum signal interference
  • Easy to install, directly plug in-between signal source and TV via F connector
  • DC pass allows power for masthead amplifier
More details

Hot Line Filter

X15
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Sold Out - discontinued

A 10A filter to fit into the 12V power lead to your radio to help eliminate interference in the power supply.

Simply cut the live wire and connect this filter in line.

10A Power Line Noise Suppressor

NS10
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A heavy duty filter to fit into the 12V power lead to your radio to help eliminate interference in the power supply.

Simply cut the live wire and connect this filter in line and connect the black to earth.

Maximum current 10A.

20A Power Line Noise Suppressor

NS20
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A heavy duty filter to fit into the 12V power lead to your radio to help eliminate interference in the power supply.

Simply cut the live wire and connect this filter in line and connect the black to earth.

Maximum current 20A.

36mm Ferrite Rings

FR2
Sold Out

Ferrite rings are very simply but also a very effective method of reducing various types of interference.

This is our most popular size, with an outer diameter 36mm, inner diameter 25mm and depth 7mm.

Ferrite Rings

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Ferrite rings are very simply but also a very effective method of reducing various types of interference.

Often fitted in power leads, TV coax leads, speaker leads, telephone leads etc.

Ferrite Ring Kit

FRK
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15 Different Size Rings

Ferrite rings are very simply but also a very effective method of reducing various types of interference.

Often fitted in power leads, TV coax leads, speaker leads, telephone leads etc.

This kit consists of 15 different size rings - there's certain to be one to fit your needs.

Clamp-0n Ferrite Filter

Y58
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Similar in use to ferrite rings, but easier to use because they simply clamp over the cable. Ideal where cables have moulded plugs etc.

Very simply but also a very effective method of reducing various types of interference.

Often fitted in power leads, TV coax leads, speaker leads, telephone leads etc.

Available to fit cable approx 6mm, 7mm or 10mm diameter.