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ahorii 13/12/2020
RBW does not show 10,50kHz for my item. Please publish the normal firmware. Since there is a SWD port on the board, I think it is possible to write to the CPU. I would like to update the firmware at my own risk. The mixer IC has a built-in terminating resistor. No external terminating resistor for RF_IN is required. As it is, VSWR = 2. Replacing the 470uH inductor on the back of the board improved the noise floor by more than 10dB. My item has improved from -63dBm to -76dBm. But when I put the board in the aluminum case, it got a little worse. The linearity is almost satisfactory between -10dBm and -70dBm. Unfortunately, with the current specifications, this item is almost useless.
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  • Banggood Dear Customer,Thank you for choosing Banggood and sorry for the inconvenience caused.In order to provide the best solution, if you have any questions about the product, please do not hesitate to contact us for a help by filling out the form at below links: Personal Computer: http://www.banggood.com/Contact-Us_hi111Mobile: https://m.banggood.com/contact_us.html We will reply and offer you the best solutions after confirming the case within 24-48 hours. Best regards,Banggood Team

    03/05/2024
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