Showing posts with label baby monitor frequency. Show all posts
Showing posts with label baby monitor frequency. Show all posts

Thursday, January 17, 2013

Is it possible to watch baby monitor from your computer?

Q. From a standard baby monitor system (summer infant), not a webcam... Is there a way to pick up the frequency?

A. I don't see why not but the problem is that you cannot exactly 'tune things' in this way. The issue is not signal itself but FCC standards. They tell the companies to put certain devices on certain frequencies for operation. That being said it prevents overlap. However that doesn't prevent too much. Using some Linux software you may be able to hack your wireless router into transmitting that signal to your computer if you have one, theoretically. It is also plausible that the company that made the device may have thought about this already and could have a software program available for use.

All I'm saying is it could be done but whether or not this screws up the router later or not if done by a hack is something you will have to decide on dealing with.

My advice: Get a web cam that can link up via ethernet and yes they make such a beast as a security camera. These have similar sensitive microphones like what you would find in baby monitors. Most though start off around $79.99.


Can your neighbors listen in on your phone conversations with a baby monitor ?
Q. If you're on your cordless phone in your home? I've heard that its possible for neighbors with baby monitors to do this to their neighbors, and I wouldn't think this would work, unless my cordless phone acts as a monitor.

A. It's possible if the phone and the monitors work in the same broadcast frequency.

Most do not, however. Modern cordless phones operate in the 2.4ghz wavelength, and older ones operate in the 900mhz wavelength (the newest ones operate in the 5.2ghz wavelength, but don't worry about those).

Most baby monitors work in the 300-900mhz wavelength, so a few of them *can* pick up on older cordless phones, but those that do are few and far between... especially becase every phone and monitor is coded to only pick up a very specific frequency around their specified range... so crosstalk is less likely.


Can I use a different brand of monitor with a receiver?
Q. I have a fisher price baby monitor with 2 receivers but one was dropped and broken. If I get a different brand will the fisher price monitor work with it on the same channel?

A. Probably not. Baby monitors work on three different frequency bands, and even withing the same band use different channels and different ways of matching up to each other.


best baby monitor for living next to airport?
Q. we are looking for a good affordable baby monitor. We live next to a small airport and are concerned with interference. suggestions - advice - do you live near an airport and have a baby monitor?

A. I live about 10 miles from the airport. We use summertime hand held monitor and it works good. At times, there is audio static but not enough to be bothersome. We love our monitor. It run on 900 mhz frequency and not 2.4 like most phones and laptop gear.





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Sunday, January 13, 2013

We need a baby monitor for 2 different bed rooms, is there such a thing?

Q. My husband and I are expecting our second baby in 4 weeks. We also have a 2 year old. We have been looking every where for monitors to have in each of their rooms. I would need to receivers because we have a 2 story home. It seems to be impossible to find. I know Im not the only mom out there with 2 children who need monitors in their room...Please help!

A. You need two monitors and two recievers or just one reciever? If it is 2 reciever just buy two monitors with different frequencies like the summer infant hand held.


listen to other cell phone conversations with a device?
Q. how is it possible to pick up cell phone conversations with a device, or a baby monitor.

A. Only analog cell phone conversations can be intercepted with a scanner. And almost no one has analog phones anymore. The newer CDMA or GSM phones use digital encoding techniques that prevent the casual listener from intercepting the conversations.

Baby monitors will NEVER overhear cell-phone conversations. Baby monitors operate at 900MHz or 2.4GHz; cell phones do NOT operate in those frequencies. However, home cordless phones DO operate in those frequencies, and these are the conversations that are often overheard by baby monitors. Newer cordless phones use the same digital encoding used by cell phones, so a new phone won't be overheard by a baby monitor.


Why would a non-wireless router emit so much radiation?
Q. I have a TP-Link router and it's not a wireless one, yet it seems to emit quite a strong magnetic field of almost two metres, as it causes interference with my baby monitor. Should I be concerned about this? Or is it normal for a router to emit so much radiation? The thing is that the router is under my desk right where I sit to work!

A. Any piece of modern digital electronics emits electro-magnetic interference. The very high speed circuits invoved (several MHz clock frequency) conduct through copper traces on the circuit board in the thing. The copper traces act like antenna and thus emit the "noise" you hear on your baby monitor.

Even the power supply for your router could be the culprit. To achieve small size and high efficiency, the power supply "brick" will often contain high speed electronics which could also be the source of the emission.

Finally, the typical baby monitor is a pretty low quality electronic device. It lacks selectivity and is likely picking up noise from frequencies that are not important to it. A different brand monitor might not suffer this problem.

Also, better quality routers would enclose their circuit boards in a metal housing. Such enclosure would contain the EMI in a so called Faraday cage. I suppose you could put your router in a metal box and accomplish the same thing now.

Astrobuf


Is it possible to buy a scanner?
Q. Can you buy a scanner that tunes into frequency's such as the police radios. i've herd that some can pick up cordless phones, cell phones and baby Monitors. that kind of scares me because people can listen into my conversations. i asked this question to get a general idea of just how many people have these out there.

A. Most cordless phones and cell phones can not be monitored by scanners, even if the scanner was modified to receive their frequencies. Modern cell phones and cordless phones utilize digital and/or encryption technology which can not be monitored by any scanner available to the common citizen. However, some older cordless phones can be monitored.

buying a scanner? visit http://www.scannermaster.com
want scanner info, radio resources and frequency info visit http://www.radioreference.com and be sure to visit their forums.





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