need urgent help

Discussion in 'The Projects Forum' started by b.sahiti, Feb 25, 2009.

  1. b.sahiti

    Thread Starter New Member

    Feb 25, 2009
    1
    0
    I tried to build the spy fm transmitter posted in allaboutcircuits.com on 09-22-2007 but i am unable to catch the transmitted signals on any commercial radio.How can i catch the transmitted signal? i think theoretically the resonant freq of tank ckt is around 5MHz,i remeber reading in the post that it will transmit in CB but i tried from 80 to 110MHz but still cannt catch the signal. Help me suggest if i should make any changes in the ckt. I am doing this transmitter as my 2nd sem mini project but i am in a very bad situation as it is a complete disaster till now. i need to make a transmitter so that i can tune it into CB. plz anyone suggest me altenative ckts for transmitters or any modifications in that ckt. plz its really urgent:(
     
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