VHF RFI Filter For TV Signal Reception for HF – 6m stations

This VHF RFI Filter For TV Signal Reception will block common mode currents from HF – 6m ham radio stations and prevent interference with TV reception. VHF RFI Filter will filter all signals below 111 MHz TV “S2” channel, which represents the lowest cable TV channel in cable TV reception. All HF and 6m frequencies will be weakened by 30 dB or more. VHF RFI Filter must be placed just before the TV aerial socket with the shortest possible RG6 or RG59 cable (5-20cm).

The main application is to pass cable TV from S2 – 111MHz to UHF 868 MHz and suppress all frequencies below (HF, 6m).

The VHF RFI filter is composed of a VHF symmetrical high pass filter and common mode chokes.

 

VHF RFI Filter For TV Signal Reception for HF – 6m stations Appearance:

 

VHF RFI Filter For TV Signal Reception measured attenuation:

1.82 MHz 45 dB
3.51 MHz 38 dB
7.1 MHz 27 dB
14.15 MHz 28 dB
21.2 MHz 33 dB
28.4 MHz 36 dB
50.11 MHz 43 dB
70.2 MHz 33 dB
TV S2 111 MHz 1.3 dB
TV C10 210 MHz 2.1 dB
TV DVB-T C21 474 MHz 1.3 dB
TV DVB-T C41 655 MHz 2.1 dB
TV C69 858 MHz 2.7 dB

 

VHF RFI Filter For TV Signal Reception HF Attenuation

 

VHF RFI Filter For TV Signals 10m 6m 4m Band Attenuation

 

RFI Filter For TV Signals Return Loss and Insertion Loss

 

For UHF RFI Filter Look here