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Can Your TV Antenna Interfere With Your WiFi?

Listener Jeff in San Jose, California wants to know if an over-the-air antenna can have a bad impact on his WiFi reception

Digital-tv-antenna

Jeff asked: “I heard on one of your shows that it was easy to put up a television antenna to bring in HD broadcasts. I’m thinking of doing that, but I have a question. I have heard that a TV antenna will kill a Wi-Fi signal. I am hesitant to put an antenna up on the wall, because I don’t want to lose any Wi-Fi signal. Can you give me your thoughts on that please?”

Digital television signals (called DTV) operate on the same frequencies previously used for VHF and UHF broadcast channels. The highest DTV channel has a center frequency of 693.25 MHz.

Your WiFi router runs on either 2.4 GHz or 5 GHz, or both in some cases, and those frequencies are so far away from the ones used by DTV that interference isn’t really possible.

So how did the rumor get started? Our best guess is that someone had an antenna amplifier cranked way up, and the overmodulation caused some splash harmonics that caused issues in the WiFi frequencies.  But no, a TV antenna will not “kill” a WiFi signal. That’s a myth.

Written by Dave Graveline

Dave Graveline

Dave Graveline is the founder, Host & Executive Producer of "Into Tomorrow" in addition to being President of the Advanced Media Network".

Dave is also a trusted and familiar voice on many national commercials & narrations in addition to being an authority in consumer tech since 1994. He is also a former Police Officer and an FBI Certified Instructor.

Dave thrives on audience participation!

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