Over the air TV interference from WiFi

[evanskl]

As anyone ever had a site very near the WiFi router and had trouble with their over the air TV reception? We has experienced this a couple of times with our Samsung TV. I really don't understand why, but the signal comes and goes, usually only receiving the sound.

Any help is appreciated.

[wa8yxm]

Should not be any interference,, Wi-FI and TV are completly different frequencies, however the router may be emitting other frequencies.

My router is directly behind my Samsung Multi-Sync TV/Monitor, no interference.. But then the antenna is like 30 feet forward six 7 feet across and several feet UP!

[TXiceman]

Maybe a shielding issue within the TV. Check you coaxial cable connectio and make sure the shield connected properly.

There should be no interference due to the frequency differences.

Ken

[Bill Adams]

Highly unlikely that there is any correlation between the 2 since they do not even begin to share the same frequencies. You may need a Wingman add-on for your Sensar antenna (Batwing) or you may need to re-point your existing antenna but there is almost no chance that the wifi is the issue.

[alvinc]

Interference is about more than just the frequencies on which the devices transmit and receive. All transmitters and receivers use intermediate frequencies in the process of doing their job, this is where the interference is coming from. Intermodulation is one form of this. In addition all transmitters emit energy on frequencies other than their designated frequency. This interference is often found when a sensitive receiver on one band is placed near a powerful transmitter on another band. The bands can be widely separated.

The design and construction of transmitters is supposed to limit these spurious emissions and the design of receivers are supposed to shield those sections of their units to limit the effects of spurious emissions.

Occasionally two devices will be used near each other that will exhibit a "perfect storm" and interfere with each other. According to the FCC it is the emitter that is at fault and is required by law to correct the situation.

In this case some of the blame could be directed at Samsung for building a poorly shielded TV. Especially if other TV's don't have this problem, and you have experienced this issue in multiple campgrounds.

If you know any Ham Radio Operators, you might try to enlist them in finding the entry point of the interference to your TV, or track down the source of the interference.

[Wayne M]

Don't forget harmonics, inter-modulation, and heterodyning. The interaction can cause their own beat frequencies especially at the higher frequencies.

I'm with the thinking it is poor shielding, but I would not totally rule out interferences from the proximity of the WiFi along with other equipment proximity.

Maybe you can enlist the local HAM club. Someone may have a frequency spectrum analyzer.