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433Mhz Transmitter and Receiver pathloss

Discussion in 'Radio and Wireless' started by san7, Mar 23, 2009.

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  1. san7


    Mar 23, 2009
    Hello Forum,

    I have a 433MHz Transmitter and Receiver with following parameters;


    3.3V ,10dBm o/p power ,433MHz ,FSK


    5V , -106dBm sensitivity , 433MHz ,FSK

    I am in need of decreasing the Range of 433Mhz Transmitter to 6-7meter . For this I plan to introduce T atteunator before antenna . Please guide me how much powerloss is required for this distance.

    I also want to reduce the sensitivityof receiver , can this be done with T atteunator at antenna i/p. How much strength is require by the Receiver to sense a transmitter at this range 6-7meter .

    Thanks in Advance
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