[RFI] TV RFI - an update

[N3XX - Tim Heger]

I would check out the connectors installed on all the cables in the house, 
especially those in the wall behind any wall plate.  Many times contractors 
doing cable installations will install the connectors improperly, making no 
shield connection at all.  Also be sure to get rid of any twist on or crimp 
on connectors, and replace with snap-n-seal connectors.  If using the 6 foot 
jumper cable that came with the VCR to connect it to the TV, get rid of it 
and replace with a good quality cable - those cables are junk.

GL & 73,
Tim - N3XX

----- Original Message ----- 
From: "Dave Hachadorian" <K6LL at ARRL.net>
To: "RFI Reflector" <rfi at contesting.com>
Sent: Tuesday, February 12, 2008 10:41 PM
Subject: Re: [RFI] TV RFI - an update


> So you have the catv hooked up to RF IN on the VCR and RF
> OUT from the VCR goes to the TV?
>
> Maybe you could just try some alternative hookups:
>
> 1. Switch the VCR RF output from channel 3 to channel 4
> (there's a switch on the back).
>
> 2. Hook the catv directly to the TV & see if it's clean.
>
> 3. Hook VCR RF INPUT to catv in parallel with the TV through
> a splitter, then take VCR composite video (RCA jack) and
> stereo audio to an aux input on the TV. Even better, take
> SVHS video from the VCR to the TV.
>
> Sometimes simple measures like these can sidestep a whole
> interference issue.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
>
>
>
> ----- Original Message ----- 
> From: <rrath at charter.net>
> To: <rfi at contesting.com>
> Sent: Wednesday, February 13, 2008 2:01 AM
> Subject: Re: [RFI] TV RFI - an update
>
>
>> Here is an update to my TVI:
>>
>> Well my wife bought some snap on beads - 43 mix - and I
>> put all 5 of them
>> on the power cord. Bought a High Pass filter, put it
>> in-line; this all is put on
>> the VCR. Reason for the VCR and not the TV, the VCR is
>> receiving the TVI
>> and sending it to the TV. VCR on we get massive TVI. VCR
>> off hardly any,
>> but some.
>>
>> No change. Blaring SSB coming thru the TV speaker and
>> lines wiping out
>> the picture.
>>
>> I rapped the VCR with aluminium foil with all the other
>> items still in place.
>>
>> No change. Blaring SSB coming thru the TV speaker and
>> lines wiping out
>> the picture.
>>
>> I then put the snap on beads on TV, after removing them
>> from the VCR.
>>
>> No change. Blaring SSB coming thru the TV speaker and
>> lines wiping out
>> the picture.
>>
>> I do have 6 torroids coming. I will rap the power cord for
>> both the TV and
>> VCR and rap the 75 ohm antenna cable. That will leave
>> three torroids left.
>> Might have to add two torroids to the TV, VCR and the
>> cable line.
>>
>> Will let you know how things turn out.
>>
>> Rod
>>
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi