Hi, Need some advise please' In two rooms have First: Explora as primary decoder - set as decoder 1, connected to A point of SLNB, using User band index 0,1,2. Second: HD decoder 4U - set as decoder 2, connected to B point of SLNB using a diplexer. Explora is working fine and sending HB signal. 4U when did setup received all chanels, but when setup finished shows E143-4 error "No communication from Primary decoder...." Diplexer is SMDC1 from Space television. I/O connected to B point of SLNB, ANT to RF IN or RF OUT on 4U, SAT to LNB In on 4U. Where to look for HB for 4U?
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