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Professional mobile radio transmission channel selection having time frequency lattice sub carriers and pilot symbols spaced below half maximum multiple trajectory/fading delay with pilot symbol absent some carriers.
Professional mobile radio transmission channel selection having time frequency lattice sub carriers and pilot symbols spaced below half maximum multiple trajectory/fading delay with pilot symbol absent some carriers.
The multi-carrier signal construction has a time/frequency lattice with a number of sub carriers divided into time symbols. Each lattice has pilot symbols in a first and second direction determined by non colinear vectors.
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