need help to be brought upto speed with connecting multiswitch/outlets/receivers

[vjeko]

Hi,
I bought a cascadable multiswitch with 4 satellite/1Terrestrial inputs and 8 outputs
(will use 4 quattro LNBs/sat dish + Terrestrial antenna as input).
There will be some 11 or 12 wall outlets i.e. 2 cascades.

I feel I understand the business around the multiswitch but have been awakened
to the fact that I am unsure how to connect the multiswitch to wall outlets and receivers
(haven't bought the receivers yet).

Unfortunatelly, the electrician has already bought
the wall outlets (with 3 connectors on them -TV/Belling lee, FM and F connector) - hopefully
they will be OK.

I'm not sure how many coax cables or other devices eg some type of splitter is needed
to connect the multiswitch output(s) to the wall outlet and receivers
(a)when using a combo SAT/TER receiver
(b)when using separate SAT/TER receivers and
(c)what is additionally needed in case I want to add an FM antenna and receiver

 

[Robbo]

Hi, the wall plates need to be triplexed ones. You have one cable from the switch going to the plate. The plate then separates off the three sources.

(a) and(b) it makes no difference, as the combo will have two separate inputs.

(c) you use a combiner to combine the terrestrial and the Fm I believe and feed into the multiswitch.

 

[hexah]

I am not familiar with multiswitches but I think the best idea will be to make a block diagram showing all the functional connections between all the different parts. When you put it all together you will need to label all the wires and switches, and keep the diagram so you know what connects to what. So if anything goes wrong or you want to upgrade it, it will be easy to connect the right parts together.

I think that some multiswitches carry television VHF Band III and UHF Bands 4/5 separately from Band II FM radio, and some diplex them all together. You might just have to bring down a separate cable for the FM antenna.

Due to the summer weather conditions, a multi-element highly directional FM aerial is usually best for rejecting off axis interference. Have a variable attenuator ready. It is always better to have a highly directional signal that is too strong and to attenuate it, than to do what most people do and have a small FM aerial that gets lots of interference in the summer. The same applies to UHF television. Using an over specified high gain narrow beamwidth UHF aerial with x elements and an attenuator should kill most potential problems.

With VHF television it is hard to prevent interference except by drastic measures, e.g. putting the aerial on the side of the chimney away from the interference, protecting the dipole with the pole if vertically aligned (though it tends to become parasitic), or installing it on the opposite wall of the house to the interfering transmitter, installing it outside the roof with the water tank inside between it and the interfering transmitter. It really depends what conditions are like.

 

[hexah]

Is your terrestrial television now digital DVB-T?

I believe Croatia is following the EU countries and switching over to digital by 2011-2012.

 

[PaulR]

The triplexers I bought in the UK now send Band III (DA out with Band II (FM). The ones I bought in France send Band III out with Bands IV/V on the TV out socket.

You'll probably find yours are like those from France but you will need to check.

 

[satelliteman]

I think that some multiswitches carry television VHF Band III and UHF Bands 4/5 separately from Band II FM radio, and some diplex them all together. You might just have to bring down a separate cable for the FM antenna.

This is the case with the majority of standalone types. Cascadable switches normally have one terrestrial input 47-862 MHz and depending on the manufacture some launch amplifiers will accept separate dab/fm and uhf inputs.

Hi,
I bought a cascadable multiswitch with 4 satellite/1Terrestrial inputs and 8 outputs
(will use 4 quattro LNBs/sat dish + Terrestrial antenna as input).
There will be some 11 or 12 wall outlets i.e. 2 cascades.

I feel I understand the business around the multiswitch but have been awakened
to the fact that I am unsure how to connect the multiswitch to wall outlets and receivers
(haven't bought the receivers yet).

Most cascadable switches normally require some sort of signal launching/amplification due to switch through/tap losses. For 12 outlets there are plenty switches that offer separate fm/dab/uhf inputs for up to 12+ outputs. Again depends on the manufacture of the switch but if not then diplexing the signals prior to the switch would be acceptable.

 

[ralphmagno]

hello,
i saw this and i agree with the advice given.
you will need a fm radio antenna as well as a digital terrestial antenna.
a amplifer for the tv and fm as well.
the amp should have the following.
if your area transmitts band 1 47 to 80 mhz tv service then you will need a amp that will have band 1,band 2 band uhf or band 4 and 5 which togeather is uhf.
47 to 85 mhz is band 1, 88 to 108 mhz is band 2 FM radio and 470 mhz to 880 mhz is uhf of band 4 and 5,
satellite starts at 950 mhz to 2150 mhz and the box sending out 14 v dc and 18 v dc will tell the switch to co hor or vert pol as well as the 22 khz for lower and upper band.
the wall outlet will seperate the bands for tv and sat and radio.
the only problem is sky plus.
this requires 2 lines from the multiswitch for each tuner input.
i hope this helps
ralph