The FM Transmitter Kit has an oscillator coil built into circuit board. Trimcap to tune in FM band. Transmits over 500 meters in the open. You can experiment with better aerial for greater range. Full explanation of circuit is
provided with the kit.
The Cadre 9V FM transmitter (FM Tx) has been developed as a more powerful yet simpler version of QK7.ﾠ Component count has been reduced yet the power has been increased by using a 9V battery and higher rated transistors.ﾠ The tank oscillator coil has been incorporated into the PCB trackwork itself.ﾠ A bigger tuning film capacitor has been used to get more fine tuning anywhere in the FM band (and just below it.)ﾠ
It has a greater range which is mainly the result of its higher operating voltage. ﾠ
The output power of this FM Tx is below the legal limits of many countries (eg, USA, CANADA and Australia).ﾠ However, some countries may ban ALL wireless transmissions without a licence.ﾠ It is the responsibility of the purchaser to check the legal requirements for the operation of this kit and to obey them.
The kit is constructed on a single-sided printed circuit board (PCB).ﾠ A computer aided design program was used to design the board.
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