No need to change the LNBs as each decoder has its own antenna. The HB cable will be required. The 6S should be set as Primary. The diplexer is definitely required behind the 6S. The RF IN port on 1132 should be used because you are probably using the RF OUT port already for an older TV. If you do decide to change the LNB feeding the 6S, it will allow the simultaneous use of the EPG information. Make sure you connect the cable to port A on the SLNBs, the Unicable port without a terminator The SLNB types suitable are: LMX 502Z and 502W - There is no 502A. LMX 501 --- overkill for your application.
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