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RF Explorer Team

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About RF Explorer Team

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    Madrid, Spain
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    RF Explorer questions, requests and information

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  1. RF Explorer Team

    An observation at 493MHz.

    Yes, in the presence of out-of-band, strong signals such as the one produced by a microwave oven, the signal can produce intermodulation inside a receiver or an instrument.
  2. RF Explorer Team

    An observation at 493MHz.

    Thanks for the added details, that makes sense. The new WSUB1G+ model has a very effective low pass filter in the RF input stage. This filter prevents any signal higher than 960MHz to produce false intermodulation in the instrument, or saturate sensitive electronics producing spurs. That is not the case with the original simpler WSUB1G model. Therefore what you see is most likely a false reading produced by the strong 2.4GHz signal entering the instrument and creating internal spurs. To test this, you only need an external 1GHz low pass filter connected between the WSUB1G RF port and the antenna, it will behave the same as the WSUB1G+ as far as this signal is concerned. Best, RF Explorer Team
  3. RF Explorer Team

    An observation at 493MHz.

    Hi AlenK, The new RF Explorer WSUB1G PLUS is likely the model being presented in this thread as VHF/UHF, and being compared with RF Explorer WSUB1G standard model. If that is correct, please note the new, more advanced model has internal DSP features that, when enabled, may take a few milliseconds longer to complete a sweep by doing a better filtering of <spurs / false signals> which were not filtered by RF Explorer WSUB1G standard model. You can still run the WSUB1G PLUS model in the same way as standard model, if you prefer, being faster: select DSP:Fast mode in the CONFIG MENU. The DSP selection allows you to switch filter / no filter spur signals so you are always in control. More details in the DSP section of the user manual www.rf-explorer.com/manual Regards RF Explorer Team