100 Mhz converter

Posted on Apr 21, 2012

The 2N4416 JFET will provide noise figures of less than 3 dB and power gain of greater than 20 dB. The JFET's outstanding low crossmodulation and low intermodulation distortion provides an ideal characteristic for an input stage. The output feeds into an LM171 used as a balanced mixer.

100 Mhz converter
Click here to download the full size of the above Circuit.

This configuration greatly reduces local oscillator radiation both into the antenna and into the //strip and also reduces rf signal feedthrough.

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