FIGURE 1. MULTIPLE SIGNAL PATHS VIA THE IONOSPHERE. 
TRANSMITTED R-F 
TRANSMITTED R-F WITH MULTIPATH COMPONENTS 
RECEIVED R-F WITH MULTIPATH IN PHASE 
RECEIVED R-F WITH MULTIPATH OUT OF PHASE 
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FIGURE 2. EFFECTS OF MULTIPATH. 
TRANSMITTED PULSE 
RECEIVED PULSE 
FIGURE 3. PHOTOGRAPH OF MULTIPATH COMPONENTS. 
DETECTED WAVEFORMS 
_S\~ S\N 
INTEGRATED DATA 
CONVERTED DIGITAL DATA 
FIGURE 4, DUAL SYMBOL REDUNDANT SYSTEM WAVEFORMS. 
