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31 Posts
Before you judge my choice of forums to place this thread, I will preface with some background and praise. My baby monitor produces quite a bit of static. I know this is common, however I feel I should be able to solve this. I have experienced similar static when connecting an old computer to a high powered amplifier. To solve the static, I used an in-line ground loop isolator. However, since the transmission is wireless, I cannot use the same device to reduce the static.
I believe the heart of the problem is magnetic shielding. I also believe (and have found to be fact) that anywhere else on the internet concerning baby monitors says "Buy a new one", "Use a digital one". I know the people at this forum have dealt with static and most likely DIY magnetic shielding/grounding.
The receivers (and the transmitter) are not grounded. I have attempted to ground the outercase (plastic) using some shielded cable I had lying around. This helped, but not in the way I had expected. I attached one end to the baby monitor receiver and the other end to a grounded metal device. This did not help. After many other options, I threw it on the floor and the static disappeared completely. I do not know why. Anyone have a clue?
Anyways, the heart of the reason as to why I ask in the speakers section is that I believe it is truly a ground loop or magnetic shielding issue. Both of which someone on this forum has dealt with and fixed. How can I ground a plastic device? If it is not grounding, how can I magnetically shield the device?
Relevant information:
Wireless devices in house: Wifi and cell phones (operating at different frequencies than the monitor)
I do live by a road that semis drive by frequently, however after a few minutes of watching the semis drive by, there is no interference with them.
To reiterate, my best attempt at reduce the static was a shielded cable attached to the monitor and the other end laying on a sock on the floor...no idea why this worked better than a grounded device.
Thanks for any help/suggestions you may have.
PS: Since I have a monitor in my home theater, it is killing me to hear static while watching quiet movies. Hopefully someone can relate to how irritating that is...
I believe the heart of the problem is magnetic shielding. I also believe (and have found to be fact) that anywhere else on the internet concerning baby monitors says "Buy a new one", "Use a digital one". I know the people at this forum have dealt with static and most likely DIY magnetic shielding/grounding.
The receivers (and the transmitter) are not grounded. I have attempted to ground the outercase (plastic) using some shielded cable I had lying around. This helped, but not in the way I had expected. I attached one end to the baby monitor receiver and the other end to a grounded metal device. This did not help. After many other options, I threw it on the floor and the static disappeared completely. I do not know why. Anyone have a clue?
Anyways, the heart of the reason as to why I ask in the speakers section is that I believe it is truly a ground loop or magnetic shielding issue. Both of which someone on this forum has dealt with and fixed. How can I ground a plastic device? If it is not grounding, how can I magnetically shield the device?
Relevant information:
Wireless devices in house: Wifi and cell phones (operating at different frequencies than the monitor)
I do live by a road that semis drive by frequently, however after a few minutes of watching the semis drive by, there is no interference with them.
To reiterate, my best attempt at reduce the static was a shielded cable attached to the monitor and the other end laying on a sock on the floor...no idea why this worked better than a grounded device.
Thanks for any help/suggestions you may have.
PS: Since I have a monitor in my home theater, it is killing me to hear static while watching quiet movies. Hopefully someone can relate to how irritating that is...