WRVE426 Posted October 20, 2023 Report Share Posted October 20, 2023 A friend of mine gave me this device: https://www.amazon.com/dp/B09482NSV9 which detects EMF, RF and EF emissions. My question is embarrassingly primitive: which of these emission would adversely affect the reception of radio signals both of GMRS or general SW radios? Thank you! Quote Link to comment Share on other sites More sharing options...
nokones Posted October 20, 2023 Report Share Posted October 20, 2023 All the above. WRVE426 and Sshannon 2 Quote Link to comment Share on other sites More sharing options...
axorlov Posted October 20, 2023 Report Share Posted October 20, 2023 The emissions around 450-470 MHz will directly mess with the receiver (if talking about GMRS). They will be making Signal-to-Noise ratio worse. The higher frequency emissions, when strong enough, may have an effect on internal electronics of the radio. The lower frequency emissions unlikely to cause problems, but there are cases when they have an effect because close enough to intermediate frequency or any harmonic of it. Radios are constructed to be protected from the off-band interference, but if signal is strong enough, or/and radio is cheap enough, you will have an adverse effect. Biggest problem is always the in-band interference, 450-470 MHz for the GMRS. WRVE426 and WRHS218 2 Quote Link to comment Share on other sites More sharing options...
BoxCar Posted October 20, 2023 Report Share Posted October 20, 2023 The specifications for the unit show it measures up to 454 MHz in the UHF spectrum which is below the frequencies used in GMRS. It will however, give you an idea if there are interferers present. WRVE426 and WRUU653 2 Quote Link to comment Share on other sites More sharing options...
WRVE426 Posted October 20, 2023 Author Report Share Posted October 20, 2023 Thank you all for your answers!! Quote Link to comment Share on other sites More sharing options...
LariatAdvance Posted April 16 Report Share Posted April 16 I agree with nokones...everything. When I key my Boo-fang UV-5R to talk, the right click menu on my wireless Bluetooth mouse pops up on my computer screen. Quote Link to comment Share on other sites More sharing options...
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