Fig. 5
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Simulated multiband delay fringes for the VGOS frequency coverage, assuming a point source without noise. Different dTEC values were added to each panel. The fringe peak with null dTEC is marked with a dotted line. The ambiguity introduced for dTEC = 4.5 TECU is clear (i.e., the first sidelobe at the left becomes higher than the main fringe lobe).
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