Thomas Jefferson National Accelerator Facility

The two major considerations are that the intermediate frequency (IF) output must be DC coupled and the operating level of the local oscillator (LO) should be as high as practical. Typically 7 to 13 dBm mixers are used. Mixers with a LO much higher than 13 dBm will require that one insert an amplifier between the coupled VCO output and the LO ... ................
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