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I know my weather station is on 433 MHz and my home Wi-Fi network is on 2.4 GHz and 5 GHz. It's ok so far and everything seems to be fine.

But I found many cases on the Internet that cheap stations like mine may cause Wi-Fi interference: can it be harmful for my wireless network?

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  • \$\begingroup\$ Specific model number and link for the weather station? \$\endgroup\$ Aug 29, 2012 at 17:59

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Just because your device operates at 433 MHz doesn't mean that it's the only frequency in use in the device.

I take it you mean 'cheap' as in 'made overseas and not subjected to communication regulatory testing'. Unapproved transmitters may work well, or may not. If it causes interference with other communications, the local communications commission may get upset with you.

An approved transmitter should have this statement (or some equivalent legal boilerplate) somewhere in the manual:

"THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:

  1. THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
  2. THIS DEVICE MUST ACCEPT INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION."
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  • \$\begingroup\$ Thanks, I will check these statements. Home my weather station approved by FCC. \$\endgroup\$
    – skater_nex
    Aug 30, 2012 at 1:23

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