Carrier phase synchronization system for improved amplitude modulation and television broadcast reception

A method, comprising

• synchronizing the phase of a carrier frequency of a broadcast signal with the phase of a remote reference frequency;
• synchronizing the phase of another carrier frequency of another broadcast signal with the phase of the remote reference frequency, wherein both the carrier frequency and the another carrier frequency are of a same nominal frequency;
• modulating both the carrier of the broadcast signal and the another carrier of the another broadcast signal with a common audio program feed, wherein the modulation of the carrier of the broadcast signal and the modulation of the another carrier of the another broadcast signal are substantially equally delayed from a central network source;
• augmenting at least one member selected from the group consisting of the broadcast signal and the another broadcast signal with a repeater of the same nominal frequency;
• and
• monitoring a master skywave signal from the central network source.

An apparatus, comprising:

• a first multichannel receiver for detecting the phase of a reference signal;
• a first phase comparator coupled to the first multichannel reference signal receiver;
• a first voltage-controlled oscillator coupled to the first phase comparator;
• a first amplitude-modulated radio-frequency output coupled to the first voltage-controlled oscillator;
• a second multichannel receiver for detecting the phase of a reference signal;
• a second phase comparator coupled to the second multichannel reference signal receiver;
• a second voltage-controlled oscillator coupled to the second phase comparator;
• and
• a second amplitude-modulated radio-frequency output coupled to the second voltage-controlled oscillator,
• wherein the first amplitude-modulated radio-frequency output and the second amplitude-modulated radio-frequency output provide a group of co-channel signals whose carrier frequencies and phases thereof are synchronized to:
• (a) substantially eliminate audible and sub-audible beats between a local desired station's carrier signal and one or more interfering stations' carriers;
• and (b) substantially reduce distortion effects in the signals as received in the coverage area overlapped by the two or more signals.