Combination of diseqc switch and a splitter

aka7

Before going out to buy I thought I would ask people with more knowledge if this would work.
Hopefully the diagram will clarify my question.

I currently have 2 single cables entries into the house coming from 2 dishes pointed to 2 different satellites.
Sat 1 with single LNB - 1 cable feeding receiver1
SAt 2 with quad LNB - 1 cable feeding receiver2

For receiver2 I am currently using only one of the 2 sat tunners. So for recording, I am looking for a way to use the second sat tuner without drilling new holes into the house.

Question. Can I use a diseqc switch feeding from both LNBs and then, use a splitter in the house to get signal to the second tuner receiver2 and of course continue to receive signal for receiver 1?

The high horse brigade

aka7 wrote: »

Before going out to buy I thought I would ask people with more knowledge if this would work.
Hopefully the diagram will clarify my question.

I currently have 2 single cables entries into the house coming from 2 dishes pointed to 2 different satellites.
Sat 1 with single LNB - 1 cable feeding receiver1
SAt 2 with quad LNB - 1 cable feeding receiver2

For receiver2 I am currently using only one of the 2 sat tunners. So for recording, I am looking for a way to use the second sat tuner without drilling new holes into the house.

Question. Can I use a diseqc switch feeding from both LNBs and then, use a splitter in the house to get signal to the second tuner receiver2 and of course continue to receive signal for receiver 1?

Generally you cannot split satellite as the signalling is done from the set top box but they say you can split Saorsat because it's all on one transponder if that's what you're trying to do

Ten Pin

Would this work
https://www.freetv.ie/5x2-diseqc-switch/

The high horse brigade

Ten Pin wrote: »

Would this work
https://www.freetv.ie/5x2-diseqc-switch/

No, you would be limited to the same transponder on both boxes. Same issue as above. You need a cable direct to each box or a cable from each lnb to 2 disec switches connected to each box by a single cable or a multiswitch

Johnboy1951

or maybe change the LNB for a Unicable LNB and use a splitter inside to feed the tuners - are they Unicable compatible?

Apogee

Johnboy1951 wrote: »

or maybe change the LNB for a Unicable LNB and use a splitter inside to feed the tuners - are they Unicable compatible?

This would be best approach if possible. Otherwise, if you don't need to have both receivers on simultaneously, put a Priority Switch in place of the splitter, and designate on receiver as Master and the other as Slave.

aka7

Thanks for suggestions guys.

Not familiar with Unicable LNB. Will need to google some info...

The receiver that I was hoping to use 2 sat tuners is a Tiviar Alpha+. I just read that it supports Unicable.
So Unicable LNB outside, 1 cable to the house. Then splitter inside to feed the 2 Tiviar tuners should work?
A saorview feed + combiner is also planned to be added.
So in this case 3 way splitter in the house?

Priority switch, again new to me but looks the cheaper option.

Maybe I'll take my time and wont decide just yet.

Johnboy1951

aka7 wrote: »

Thanks for suggestions guys.

Not familiar with Unicable LNB. Will need to google some info...

The receiver that I was hoping to use 2 sat tuners is a Tiviar Alpha+. I just read that it supports Unicable.
So Unicable LNB outside, 1 cable to the house. Then splitter inside to feed the 2 Tiviar tuners should work?
A saorview feed + combiner is also planned to be added.
So in this case 3 way splitter in the house?

Priority switch, again new to me but looks the cheaper option.

Maybe I'll take my time and wont decide just yet.

If the receiver supports Unicable then no splitter would be required for that box.
I use a quad tuner box with a single Unicable feed for all four tuners.

aka7

Unicable LNB with Tiviar Alpha+
Is anybody using this combination to confirm it works as expected?

Johnboy1951 wrote: »

If the receiver supports Unicable then no splitter would be required for that box.
I use a quad tuner box with a single Unicable feed for all four tuners.

Please can you clarify how the saorview cable fits into this. I was planning to use a combiner for saorview cable + LNB cable in the attic. Can I still do this using Unicable LNB? Thanks

Johnboy1951

aka7 wrote: »

Unicable LNB with Tiviar Alpha+
Is anybody using this combination to confirm it works as expected?



Please can you clarify how the saorview cable fits into this. I was planning to use a combiner for saorview cable + LNB cable in the attic. Can I still do this using Unicable LNB? Thanks

No you need to keep the coax from the Unicable LNB separate to the Aerial coax for terrestrial (Saorview) channels. This one cable can feed up to 32 separate satellite tuners, depending on the LNB specs.

If you use a standard (say quad LNB) then you would bring in 4 coax cables from the Sat LNB and one coax from the aerial into the attic, and then you could combine the aerial with one (or all) of the sat coax cables and split them again at the receiver.

aka7

Thanks Johnboy1951 for clarifying.

NewClareman

Johnboy1951 wrote: »

No you need to keep the coax from the Unicable LNB separate to the Aerial coax for terrestrial (Saorview) channels. This one cable can feed up to 32 separate satellite tuners, depending on the LNB specs.

It is possible to get unicable LNB’s with an input for a terrestrial aerial,to allow a single cable be used. I haven’t tried this but I don’t see why something the
Inverto Pro Quad Satellite And Terrestrial LNB wouldn’t work. Or am I missing something?

Johnboy1951

NewClareman wrote: »

It is possible to get unicable LNB’s with an input for a terrestrial aerial,to allow a single cable be used. I haven’t tried this but I don’t see why something the
Inverto Pro Quad Satellite And Terrestrial LNB wouldn’t work. Or am I missing something?

That is not a Unicable LNB if this is the LNB you mean
http://www.satworld.ie/inverto-pro-quad-terrestrial-lnb.html

It is a quad Sat LNB (standard type) with the additional function of combining the terrestrial signal with the standard satellite signals.

I believe there would be a clash of frequencies if you tried to combine a terrestrial signal with a Unicable feed.

An example of a Unicable LNB
https://www.satellitesuperstore.com/unicablelnb.htm

There are now I think (have not had one) some LNBs with both Unicable output and also some standard LNB outputs. The Terrestral signal could be combined with the standard LNB outputs.
This would appear to be an example of a Unicable Quad plus a Twin Standard LNB
https://www.dipolnet.com/unicable_quad_twin_lnb_inverto_black_unicable_A98240.htm

I am open to correction on this as I have not delved into it.

NewClareman

Johnboy1951 wrote: »

That is not a Unicable LNB if this is the LNB you mean
http://www.satworld.ie/inverto-pro-quad-terrestrial-lnb.html

It is a quad Sat LNB (standard type) with the additional function of combining the terrestrial signal with the standard satellite signals.

You are right, of course, obviously I’m up past my bedtime.

However, there are combined unicable/terrestrial LNB’s advertised, I came across them some time ago, trying to solve an access problem. I didn’t proceed as the coax in-situ wasn’t up to the job. (Google Inverto-0-2dB-Quad-Terrestrial-Output-Unicable-LNB)

The Cush

Johnboy1951 wrote: »

I believe there would be a clash of frequencies if you tried to combine a terrestrial signal with a Unicable feed.

Unicable LNBs operate in the standard I.F. range, only wideband LNBs overlap the terrestrial frequency range.

Johnboy1951 wrote: »

There are now I think (have not had one) some LNBs with both Unicable output and also some standard LNB outputs. The Terrestral signal could be combined with the standard LNB outputs.
This would appear to be an example of a Unicable Quad plus a Twin Standard LNB
https://www.dipolnet.com/unicable_quad_twin_lnb_inverto_black_unicable_A98240.htm

I am open to correction on this as I have not delved into it.

http://www.inverto.tv/lnb/238/unicable-quad-40mm-lnb-2-legacy-1splitter

NewClareman wrote: »

However, there are combined unicable/terrestrial LNB’s advertised, I came across them some time ago, trying to solve an access problem. I didn’t proceed as the coax in-situ wasn’t up to the job. (Google Inverto-0-2dB-Quad-Terrestrial-Output-Unicable-LNB)

Found this - https://www.redappledigital.co.uk/product/inverto-0-2db-quad-terrestrial-output-unicable-lnb/
Appears to be the same as this - http://www.inverto.tv/lnb/72/quad-terrestrial-40mm-lnb

Unicable appears to be a typo in the advert, no mention of it elsewhere in the advert or any other website that I could find.

Apogee

Johnboy1951 wrote: »

I believe there would be a clash of frequencies if you tried to combine a terrestrial signal with a Unicable feed.

There shouldn't be any overlap.

Unicable/SCR LNBFs with a terrestrial input are like hen's teeth.
http://www.auriga.it/product-detail/elettronica/17576/LNB-2-out-SCR_dCSS-Leg_SCR_dCSS-inTV1-out-SCR_dCSS-1-Out-Ibrido.html#

Easier to try a standard Unicable LNBF with a diplexer.

Johnboy1951

Apogee wrote: »

There shouldn't be any overlap.

Unicable/SCR LNBFs with a terrestrial input are like hen's teeth.
http://www.auriga.it/product-detail/elettronica/17576/LNB-2-out-SCR_dCSS-Leg_SCR_dCSS-inTV1-out-SCR_dCSS-1-Out-Ibrido.html#

Easier to try a standard Unicable LNBF with a diplexer.

That has a legacy output sppsrently which would have no problem with combining the terrestrial signals.
I could not determine if the legacy output was specified to be on the unicable output.
Is it?

My language skills are not up to the task

EDIT:

This LNB would seem to do the job - if I understand what is written - at least for the specified use ...
https://www.dmtrade.pl/p4942,lnb-cyfrowy-scr-unicable-ii-dhello-gt-dlnb1t-terr-x24-users.html

.
https://dmtrade.pl/katalogi/GT-SAT/unicable/schemat1T.jpg

NewClareman

The Cush wrote: »

Found this - https://www.redappledigital.co.uk/product/inverto-0-2db-quad-terrestrial-output-unicable-lnb/
Appears to be the same as this - http://www.inverto.tv/lnb/72/quad-terrestrial-40mm-lnb

Unicable appears to be a typo in the advert, no mention of it elsewhere in the advert or any other website that I could find.

You’re probably right, but I was pretty certain I came across one about 4 years ago. I was also looking at multiswitches, so maybe that was it. (From Apogee’s post above, it appears that they do exist.)

In terms of the OP’s original requirements (satellite x 2 + Dvb-T, on one cable) would the Unicable II Multiswitch, with wideband LNB’s, meet his requirements?