There are a lot of baby monitors out there on the market. When I first started looking for one, I literally was spoilt for choice. How do you choose? And what was the difference between digital, analog and DECT?
As with all cordless devices, baby monitors operate on a radio frequency. The most popular of which, is 2.4 GHz. Its extreme popularity is unfortunately also the cause of its downfall. Because it is so popular, and so many cordless devices use this frequency, it is prone to interference.
For example, if your neighbor uses the same baby monitor as you, you might end up picking up her signal and vice versa, causing undue false alarms and occasionally, embarrassing moments of privacy intrusion.
DECT is another radio frequency. While relatively new in the market, Digital Enhanced Cordless Telecommunication will probably become the most used frequency in due time, because it is very reliable, provides a longer range and promises virtually no interference. The only downside to this is that DECT baby monitors are quite expensive, e.g. the Philips Avent DECT SCD520.
Digital vs. Analog
Digital and analog formats on the other hand, determine how sound is transmitted from the monitor to the receiver. While a digital baby monitor scrambles the signal in binary code to ensure privacy, an analog baby monitor only transmits the sound directly to the receiver via electrical pulses.
Needless to say, analog baby monitors are cheaper yet can still provide relatively okay sound quality but digital baby monitors (which are not that expensive anymore) provide good sound, less interference and static, as well as sound clarity.
I have written several baby monitor reviews on different types of baby monitors which you might find useful should you have decided which kind of baby monitor you are looking for. Happy hunting!
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