TV Antenna and Clear QAM Cable Tuner HD / Digital... The Channel Master CM-7001 will tune ATSC (Antenna) or clear QAM (unencrypted cable) signals for televisions displays and projectors that do not have built-in tuners. This unit is easy to set up and use and will offer standard and high definition tuning. This unit will provide on-screen program information for your crystal clear digital and HD tuned programs.