Hi Daniellgr,
thanks for your post it was quite informative for me as well. I currently upgraded my one HDPVR to another explora (so basically I have two exploras in extra view, and I also upgraded my LNB to a smart LNB as I heard that the heartbeat could go through the smart LNB port to the decoders. I thought this was awesome because with the now only needing one cable to each explora from the LNB I could now put my one explora in the bedroom without having to many coaxial cables going, However I got an installer out to quote me to do the job for me and he claimed that the heartbeat needs to go through a separate coaxial cable from decoder to decoder and it cannot go through the smart LNB.
Can the new Smart LNB have the heartbeat go through it from one explora to the next if I plug them into the unicable ports and is there anything that I need to change in the settings?
(1) There are two groups of installers in SA, those accredited by MC and those that are not. The accredited installers have been "trained" by MC and they have in their possession an "installation" manual, that shows how to wire up 2 explores in different rooms using the LNB cabling. The other installers do not have access to the "installation manual" so they probably don't know about the method.
(2) HOWEVER, you will find that even the accredited installers are split on whether feeding the HB via the LNB cabling works. The one down the road from me has a fit when someone asks him to do the installation that way.
(3) Even within MC there are 2 schools of thought, those that support the new installation method and those that do not ....
(4) My own opinion, is that the new method is a bit risky in terms of lightning damage, as well as it depends on what you want to do with the received signals. IF you want to be able to view via RF distribution system, content from both Exploras anywhere, then you need to install a RF connection between the Exploras anyway, and then why not use that for the HB as we always did? If not then the new way is okay.
(5) To keep the peace, send me a PM and I will respond with a copy ( not necessarily the latest version) of the manual describing the new installation method. This method requires 2 "diplexers" to be installed, one behind each Explora decoder, (combining and splitting the LNB and RF signals into and out of the 2 ports on the back of each Explora decoder). There is some talk around that the diplexers are no longer required, but I have not found anyone that is prepared to show that it works, so until then, I am not prepared to comment on that installation method.
BTW a Diplexer is a special form of a splitter. The persons who have tried the new method with ordinary splitters have had varying degrees of success.