Subject:	Re: Legal Advice Re: TVI
Date:		Tue, 20 Jan 1998 17:12:16 -0700 (MST)
From:		"John Kirk, VE6XT" jakirk@freenet.calgary.ab.ca
Org:		Calgary Community Network Assoc.
To:		Michael & Andrea Hiltner the.hiltner.family@sympatico.ca


Hi Michael:
Don't waste your time trying to find solutions for the portable phone if
it is 49 MHz. I consider myself pretty knowledgeable on the subject of
EMI/RFI, and I have yet to find a solution. They are too tiny, too poorly
made.
If it is 49 MHz, purchase a 900 MHz portable (Vtech are very reasonably
priced, and work). Take it over and demonstrate how the interference goes
away the moment you swap phones. If you are a nice guy, leave it there. If
you are not quite that nice, at least you have demonstrated that it is the
phone, not your station that is at fault, and point him to the maker of
his phone for resoltution.
You are on the right track with the tv - high pass filter first (and get
rid of the dual preamp). He is not doing himself any favours by going to
2 preamps anyway. Those things have quite a high noise figure, so he
actually ends up making his picture *worse*!
Email me if the filters don't work, and I'll point you to a coaxial stub
filter that has proven to be quite effective at my location.
73 & good luck
John