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Baby Monitor Features (continued)

Each baby monitor, analog or digital, has an operating frequency band listed on its packaging. All of our picks operate on either a 900 MHz or a 2.4 GHz frequency band, which works for most homes.

If you use wireless internet or even cordless phones in your home, you want to choose a baby monitor that operates on a different frequency band than those devices so you won't experience interference. Interference can range from a bad signal to a virtually inoperable phone or computer, so it's important to find a monitor that coexists peacefully with your other electronics.

Several digital monitors now use the 1.9 GHz frequency band, which sees less traffic and can help minimize interference. Models that offer this baby monitor frequency band use digital enhanced cordless telecommunications (DECT) technology, which should be indicated on the manufacturer's packaging. They may be the best options when it comes to baby monitor frequency but are usually more expensive. The pricey Philips Avent baby monitors with DECT technology (starting at $95) receive high marks on Buzzillions for clear sound quality and zero interference with other wireless devices.

The key here is to determine which electronics you use often and the frequencies on which they operate. If you're unsure which baby monitor frequency you need or can't find an affordable monitor with a unique frequency, you can always buy what you think is the best baby monitor for you and see how it works in your home. Many parents who worry about interference experience few problems with it, largely due to the location of their electronics in relation to the baby monitor.

Review continues below

You may also be able to mitigate any baby monitor frequency issues by selecting a budget baby monitor with multiple channels. To help minimize interference from nearby electronic devices such as cell phones, many inexpensive baby monitors offer a range of channels within their particular frequency band (similar to AM or FM radio). Baby monitors can have as few as two or as many as 60 available channels. That means even if multiple devices in your home share the same frequency band, changing the channel can eliminate interference.

For example, the Sony BabyCall, the only analog monitor among our picks and the one on our list with the most channels, operates on the 900 MHz frequency band and offers channels ranging from 902.200 to 904.900 MHz. Trying out different channels will help you find the one with the least interference from other devices. One user posting a review on Viewpoints says she loves how easy it is to change the channels on her Sony BabyCall.

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