Pushing higher RF/LO frequency

Continue to push the active mixer test to higher frequency, without board modification, today's test start from 27MHz as it was tested yesterday, I gradually tune up the RF/LO frequency to 30MHz, 50MHz ....100MHz... 200MHz, the output doesn't drop in 50MHz, and when it come to 100MHz, the output dropped a little 1dbm compared with 27MHz, in 200MHz it still can make some conversion gain.

The active mixer still looks good in 100MHz, with a little bit harmonics, the left peak is the 1MHz -13dbm IF output.