After installing the DCT700 on my tv, some of my AM radio channels on any radio in my house have stopped working; all I hear on a lot of the stations is static. Could this have been caused by the DCT700?
Unplug the power to the DCT700 (probably best to unplug the transformer from the wall), see if the stations come in again.
When I unplugged the power to the DCT700, the radio stations did come back; but once I plugged it back in, the stations were back to being static.
Can you test to see if another device causes the same issue in that same outlet?
I tried another device, but it did not cause the same issue. I also tried to plug the DCT700 into another outlet, but there is still static on the radio.
Can you try just plugging the power cable into the wall without plugging it into the unit? If you have another similar power adapter/cable, can you try that as well to see if you're seeing the same results? Cables can act like antennas and if powered, I can see them causing interference.
When I disconnected the plug from the unit (with the other end still in the wall), the stations were clear. But once plugged back into the unit, the AM stations were static again.
So, to recap:
- when the dct700 is plugged into electric power, the AM channels go to static, but when you unplug it, the channels become clear
- this is regardless of which power outlet the dct700 is plugged into
I have a few more questions to throw at you:
Is the radio connected to a coaxial cable in order to get a clearer signal?
Does the cable from the dct700 to the TV go through the same stereo system as the AM channels are picked up on?
None of the radios in my home are connected to coaxial cables, only to wall outlets. Just to clarify, when the DCT700 is connected to power, all the radios have static on them on AM; and when the DCT700 is not connected to power, all the radios are clear.
Hey there blare
It sounds like this problem may be caused by power line interference from the DCT700, maybe due to a bad ground somewhere. Do you have the option of trying a battery powered radio for AM reception? Let's do that while the DCT is plugged in, it would help narrow things down.
I'll try that out and try to get back to you soon.
I couldn't find a battery powered radio. But if I were to suppose that there is a bad ground somewhere, is there anything you can suggest that I do, in order for my family to be able to hear AM channels again?
Electrician would be my only advice I would post online about a bad ground.
But as far as I know, any AM radio and the cable terminals both do not use the ground wire, the connection between neutral and ground could be acting up, but I would expect you would notice many more electrial issues than just an AM radio.
Do you know anybody else with one of the DCT700 boxes? Could you take one of your AM radios to their place to test it?
Either tell you something funny is going on in your house, or something is funny with your box.
Thanks, I'll try your advice.
I also have a problem with radio interference. When I plug in the DCT700 box, there is a very noticeable buzz on all the radios in the house. There is no problem if just the transformer plug is plugged in but when the DCT700 unit is connected. It does not matter where the DCT700 box is plugged in.
After finally trecking to Shaw outlet and exchanging unit for another one on 24May13, the radio interference is barely noticeable. Conclusion, if you get radio interference, you most likely have a faulty DCT700 that needs replacement.
I have the same problem with the DCT700. Got it yesterday.
As soon as the wall wart is plugged into the DCT700, the interference starts.
I used a battery powered radio as a test and the interference starts as soon as I plug in the power to the DCT700.
It sounds to me like a bad switching mode power supply problem here.
The wall wart is probably faulty and should be replaced.
I would also suggest seeing if you can find another one (differernt brand/style) most of Shaw's hardware is 12 volt that uses them, some of the internet modems for example the box used to be in the middle of the wire, instead of at the wall outlet, -if they have any others to try-
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