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  • Users: stephen168
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  1. stephen168

    Add 10dB pad when measuring RF Tx power

    I observed that people always add a 10 dB pad when they measure the Tx power from the device. Apart from avoid to damage the equipment, is there any other purpose?
  2. stephen168

    Interference from SDRAM

    I am debuging the low sensitivity of the WiFi from our product. There is a SDRAM inside the product and the SW is running inside the SDRAM. The DSP and SDRAM are put inside the shielding can, it worked very well. Recently, we changed the SDRAM from brand A to brand B, the sensitivity of WiFi is...
  3. stephen168

    Interference from SDRAM

    I am debuging the low sensitivity of the WiFi from our product. There is a SDRAM inside the product and the SW is running inside the SDRAM. The DSP and SDRAM are put inside the shielding can, it worked very well. Recently, we changed the SDRAM from brand A to brand B, the sensitivity of WiFi is...
  4. stephen168

    Headphone Antenna for 170 - 240MHz

    Is anybody know the impedance or characteristic on the headphone antenna at 170 - 240Mhz? When I measure the sensitivity of the receiver, can I just connect it to the sig. gen directly (50OHM input). Or I need to add a impedance transformer from 50 OHM to close to the impedance of headphone...
  5. stephen168

    How to design a embedded FM radio antenna?

    Is it possible to design a small build in antenna for FM radio? (87.5MHz to 108MHz) For example, patch antenna.

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