Two-channel receiver-indicator for phase radio systems

A two-channel receiver-indicator of phase radio systems including first and second guiding stations, first and second guided stations and a repeater station, said receiver-indicator comprising

• a first receiver tuned to the frequencies of the first guided station and a guiding station of a radio system, said first receiver having an output;
• a second receiver tuned to the frequencies of the second guided station and said guiding station of said radio system, said second receiver having an output;
• a third receiver tuned to the frequency of the repeater station of said radio system, said third receiver having an output;
• a first signal shaper for shaping signals corresponding to the beat frequency between said first guided station and said guiding station, said first signal shaper having an input connected to the output of said first receiver and an output;
• a second signal shaper for shaping signals corresponding to the beat frequency between said second guided station and said guiding station, said second signal shaper having an input connected to the output of said second receiver and an output;
• a third signal shaper for shaping signals corresponding to the beat frequency between said first guided station and the first guiding station, said third signal shaper having an input connected to the output of said third receiver and an output;
• a fourth signal shaper for shaping signals corresponding to the beat frequency between said second guided station and the second guiding station, said fourth signal shaper having an input connected to the output of said third receiver and an output;
• a first digital follow-up phase meter having first and second inputs connected to the outputs of said first and third signal shapers, respectively, and a third input;
• a second digital follow-up phase meter having first and second inputs connected to the outputs of said second and fourth signal shapers, respectively, and a third input;
• a first digital unit for automatic adjustment and multiplication of a signal frequency, said first digital unit having a first input connected to the output of said first signal shaper, a second input and an output connected to the third input of said first digital follow-up phase meter;
• a second digital unit for automatic adjustment and multiplication of a signal frequency, said second digital unit having a first input connected to the output of said second signal shaper, a second input and an output connected to the third input of said second digital follow-up phase meter;
• and
• a count pulse generator having an output connected to the second inputs of said first and second digital units.