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Two solutions to the cross-modulation problem in VHF solid-state TV tuners are described. The first consists of a PIN diode attenuator preceding a common-gate FET amplifier. The second is a cascode arrangement of FET's designed to provide minimum cross-modulation. The performance of both solutions with respect to gain, noise figure, AGC range and skewing, and cross-modulation is compared to the performance of a 6HA5 amplifier at 200 MHz.
Broadcast and Television Receivers, IEEE Transactions on (Volume:13 , Issue: 2 )
Date of Publication: July 1967