Date: Wed, 25 Jul 2001 08:15:39 -0700 (PDT)
From: "John Sexton" <computernetworks@go.com>
Subject: Re: LF: G8RW and NTL QRM
To: rsgb_lf_group@blacksheep.org
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Hi Mike,
Having had NTL cable Digital Plus installed here some months back, I can confirm that no new QRM on 136 has been observed here that could be attributed to that service.
I do not use the E-mail service however. Several other neighbours also have NTL digital cable TV and no problems from them.
So I would agree that the QRM that G8RW is suffering from is probably a result of a faulty installation, probably the PACE box. I haven't got round to fitting ferrite rings on the power supply to that box because so far I have not found it necessary.
What I did find was that the previous Sky analogue box generated a lot of QRM until I fitted ferrite rings to the mains cable.
73 John, G4CNN

-----Original Message-----
From: "Mike Dennison"<mike.dennison@rsgb.org.uk>
To: rsgb_lf_group@blacksheep.org
Date: Wed Jul 25 04:14:37 PDT 2001
Subject: LF: G8RW and NTL QRM

>GW4ALG wrote:>> Recent letters from G8RW describe continuing QRM problems on 136
>> kHz from an NTL cable television interface installed in a
>> neighbour's house. 
>
>I am using NTL for my analogue cable TV, and have no trouble at all. The 
>cables (one for radio and one for TV, are within three metres of my antenna. 
>At least two of my neighbours use NTL's high speed internet connection 
>(cable modem) and I have no problem with those either. I suspect, but don't 
>know for sure, that at least one neighbour has NTL digital cable. My belief is 
>that the distribution is done on glass fibre, with local feeds in coax. All of this 
>suggests that the installation near Bob is faulty, not inherently noisy.
>
>Bob's next move should be to contact the RSGB EMC Committee (see RSGB 
>Yearbook or the web site, or phone HQ). This is a free service to RSGB 
>members and at least two other LFers have already benefited from it.
>
>Mike, G3XDV (IO91VT)
>http://www.lf.thersgb.net
>
>


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