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Dstar & DSP Boards

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TVI Filters

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We now provide an option for you to purchase an ongoing warranty of 1, 2 or 3 years with your equipment purchase. Email us for details

MFJ-704 TVI FILTER

MFJ's Super Low Pass filter simply plugs between your rig and antenna. It suppresses TVI, RFI, telephone and other interference by reducing unwanted harmonics going to your antenna. At the same time your HF signal passes on through with low loss so you can snag rare DX.

Nine Chebyshev poles, MFJ's exclusive TeflonDielectric Technology capacitors, Hi-Q inductors, ground plane shielding and an RF tight cabinet give you excellent TVI and RFI protection.

These exclusive Teflon Dielectric Technology capacitors give you extremely low loss and eliminate voltage breakdown and capacitor heating -- even at US legal limit (1500 watts) with a 2:1 SWR load!

The result:  you get the lowest possible loss, excellent harmonic attenuation and years of trouble-free and TVI-free service. Handles 1500 watts  from 1.8 to 30 MHz. SWR below 1.3 to 30 MHz into 50 Ohms. Attenuates above 40 MHz. Measures a compact 3x3x9 inches. Handy mounting tabs.

Price:  $119.00

$10 flat rate shipping to anywhere in Australia

BENCHER YA-1 TVI FILTER

The Bencher YA-1 Low Pass Filter is the right first step towards curing your tvi problems and maybe the only step you will need.

Interference problems can be insidious, and have distressed virtually every amateur active on the high frequency bands today. When dealing with television interference problems, installation of a good low pass filter is ALWAYS the first step the amateur should take. And often, a good quality low pass filter at the output of your transmitter or transceiver is the only step needed to resolve your problem.

Bencher's YA-1 Low Pass Filter is the best available. Carefully crafted of the finest material, the YA-1 filter demonstrates a minimum attenuation of 80 db or better in independent lab tests for harmonic radiation in channel two and higher.

Price $139

$10 flat rate shipping to anywhere in Australia