Apparent cabling problem

[DavidG]

Currently attempting an amateur installation of a 5 tv FTA system, and would appreciate advice on a particular problem.

Have connected 3 tv sets so far , using a Titanium Octo Lnb, and running the cables from the dish and Terrestrial UHF aerial to a Triax tv / sat combiner, a single cable to each room, and a diplexer wall socket feeding each tv set.

Signal in the 90% range, and fabulous reception when signal comes through.

Problem is that I need to switch on 2 receivers before the satellite signal comes through to either - ie. it appears that there is insufficient DC power from one receiver to " boot " the Lnb. Have tested a direct feed from the Lnb to the receiver and no problem, but would mean doubling all cables throughout the house ( 1 Satellite, one Terrestrial )

Any advice gratefully received.

 

[rolfw]

Can you give a model number of the Triax Diplexer, or perhaps some photos?

 

[DavidG]

Hi Rolfw,

The unit is a Triax Sat / tv combiner part no. 340110.

Power pass on the Sat side 950 - 2400 mhz.

View attachment 26348

 

[Channel Hopper]

You would need five of those ( and a matched five way UHF split from the aerial) to run both satellite and terrestrial out to each point

Something is definitely wrong with your design.

 

[PaulR]

Given the number of outlets and the requirement for TV and satellite signals it might have been a better idea to use a quattro LNB and multiswitch.

 

[satelliteman]

Some photos or a drawing of your design setup would be of some help as mentioned.

 

[DavidG]

Layout plan attached.



Because the Humax Foxsat reveiver has a second Lnb connection ( directly from the Lnb ) it boots up immediately when switched on. None of theother receivers will work unless at least 2 are switched on.

Beginning to think that there might be a problem with the Lnb ?