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Re: OT:AM radio interference on telephone-- Posted by Saabpilot [Email]  (#134) [Profile/Gallery]
(more from Saabpilot) on Fri, 18 Nov 2005 20:39:19
In Reply to: OT:AM radio interference on telephone--, BobH, Fri, 18 Nov 2005 14:06:18 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I hate to tell you but it likely is your phones. I have the same problem but with FM radio. I'm also a ham radio operator so I comment with some knowledge (well, at least a little). First I'd try ferrite chokes. I believe Radio Shack may still carry these. Basically they are rectangular pieces that you wind your phone cable through very tightly. If you've evern seen a laptop computer power supply with a heavy rectangual "thinie" near the power plug, this is the same thing only the type that allow you to wind the cable through them are better. As far as the telephone filters you got at Radio Shack they are probably generic. The good ones need to be purchased specifically for the frequencies you are experiencing difficulty with. K-Com makes the best telephone filters (see URL below).
I found that with what all this costs to try to fix the "problem" caused by my cheap phones I rather just went out and purchased some better phones and my problem went away. Specifically my main phone is a Nortel (Northern Technologies). I still have an el cheapo phone in my basement and when I go off hook with it I still hear the radio stations.
Your phone company was very correct in that if the noise is being induced on your lines or by the "poor" design of your telephone(s) it is indeed your problem and likely caused by poor design of your phones. I know this isn't what you want to hear but from a legal point of view it is very true. It's not their legal responsibility to fix your problem unless you can prove the noise is already on the line. If you connect your (pardon me) junky phone to the line at the "point of demarcation" which is a legal term for where the phone company's line terminates into your wiring, and you are still hearing the radio it could still be your telephone instrument itself picking up the noise and not necessarily the line itself picking up the noise. The only way to know for sure is to have a "butt set" or telephone analyzer hooked up to the line at that point. For example I used to have an answering machine that would start recording every time I pushed the transmit button on an HF ham radio. This was a real pain in the a$$ but it was the bad design of my cheap, consumer grade crappy answering machine, not the LEGAL installation of my ham transmitter that was causing my problem.
I hope this long message helps you. I know it's really frustrating like I said because I have the problem in my own house. I live very close to a huge broadcast tower that contains many services including Television, FM radio and a gaggle of others. Best of luck.
, Fri, 18 Nov 2005 20:39:19 <-- Viewing This Message
, Fri, 18 Nov 2005 17:11:48
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