The selection and amplification of UHF television signals

The selection and amplification of UHF television (TV) signals is described in detail. It is concluded that the UHF tuner art is just beginning its development. Five years ago, commercial VHF television tuners often had noise figures of 17 to 20 db, even on low-frequency channels. Today, a good VHF tuner noise figure is 6 to 7 db. In contrast, commercial UHF tuners which we have recently measured range from 12 db upward in noise .figure. Thus, present UHF tuning devices will provide stable all channel tuning with adequate performance for the reception of UHF television signals.