Satellite signal interrupts viewing each night at 10

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henk

7 posts

Wannabe Geek

#207525 31-Dec-2016 10:11

I have the following installation; one satellite 90 cm dish with 3 LNB, D1, D2 and INT 5 (IS19), the 3 LNB cables go to a switch

and from there to a splitter to two cables, one for upstairs TV Samsung smart and dish TV S7070r and one downstairs to

Samsung smart and dish TV S8200.

This installation works with no problems switching between satellites on both dish TV boxes, however when I watch BVN on the

D2 satellite a signal coming through interrupts viewing for a short time, 30 sec to 2 min approx.

There is no interruption when I watch anything on the D1 satellite.

This happens at 10 every night, I have contacted dish TV but they say that they can not replicate this problem.

Anyone knows who sends the signal and how to fix this problem?

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#1696742 31-Dec-2016 10:51

If you are using a splitter, then the TVs can get in a situation where they are competing for access to the satellite - with your current setup, only one orbital position/polarity can be seen at a time, so if channels on different sats are being looked at by each TV, something will fall over.

henk

7 posts

Wannabe Geek

#1696769 31-Dec-2016 12:49

Sure I understand that, the splitter is as close as possible to the switch, recommended and there is no switching conflict.

as this only happens at 10 pm when the sat box reboots by itself, when watching D1 there is no interruption and that

makes me think that it has something to do with Freeview?

henk

7 posts

Wannabe Geek

#1696771 31-Dec-2016 12:53

In addition, I can watch only on one TV the interruption still happens either upstairs or down and on both dish TV boxes,

but only when I watch any channel on the D2 satellite

richms

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#1696774 31-Dec-2016 12:57

Could be turning on its 22KHz while booting and that is passed thru the switch to the LNB triggering a band change or something? Or perhaps a jump to 18v making a polarity change happen.

Best check what the sat switch will pass thru to the selected port, and if it is powering the LNB itself or if it just passes thru the STB power, in which case the highest voltage wins.

Richard rich.ms

RunningMan

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#1696775 31-Dec-2016 12:58

henk:[snip]

as this only happens at 10 pm when the sat box reboots by itself,

That's probably the issue then. If the sat box reboots, it is probably initially looking for a satellite other than D2, and sending a signal to the switch to switch to D1, meaning the other receiver no longer has access to D2.

RunningMan

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#1696779 31-Dec-2016 13:04

Basically, your setup is asking for conflicts - having a splitter after a switch means that everything hanging off the splitter must look at the same orbital position and polarity. As soon as one receiver wants to change channel, the other will also lose it's signal.

If you want to run multiple receivers and multiple orbital positions, you need a multiswitch. It needs to have enough outputs for each of your receivers, and enough inputs for V/H polarity of each satellite you want to receive.

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henk

7 posts

Wannabe Geek

#1696786 31-Dec-2016 13:26

Reading the replies, thanks so much, it sounds like that the switch could be the problem? This installation was recommended by the retailer

who sold me the dish, switch, splitter, bracket and multiple LNB, the switch is an ultraplus 4x1 DiseqC.

Like I have mentioned before I can watch any satellite and switch between satellites on both TV's anytime without problems.

The real issue I am looking to resolve is this annoying interruption at 10PM when an external party is sending a signal to both dish receiver boxes,

can I disable this?

richms

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#1696791 31-Dec-2016 13:35

If the whole system was recommended together then put it back on the place that recommended it to solve it IMO.

Richard rich.ms

henk

7 posts

Wannabe Geek

#1696815 31-Dec-2016 13:47

They have not been very helpful, say they can not replicate the problem and left it to that, I am no expert but pick up anything quick,

it sounds like that replacing the switch to a multi switch and removing the splitter could be the one as i have received no answers to

this mysterious signal at 10 pm rebooting the box and there may be nothing i can do about that?

Thanks anyway

RunningMan

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#1696816 31-Dec-2016 13:58

henk:[snip]

Like I have mentioned before I can watch any satellite and switch between satellites on both TV's anytime without problems.

With the setup as you have described, this is not possible. You should not be able to watch D1 on one TV and D2 on another at the same time with your current setup. If you can, then your setup is not as described.

The most probable cause is that at 10pm one (or both) of your boxes is checking for an OTA firmware update or something similar, and specifically looking for this on Optus D1. With a splitter, you simply cannot receive more than one orbital position / polarity at a time down that single cable, so the receiver connected to Optus D2 loses signal when the other one connects to D1.

If a sat switch followed by a splitter was recommended by a retailer, send it back, it will never work fully - the only solution for multiple satellites and multiple receivers is a multiswitch.

A DiSEqC or 22kHz switch can be used for single receiver, multiple satellites.

A splitter can be used for single satellite/polarity and multiple receivers.

Combining the two will give you an incredibly limited subset of what can be received simultaneously.

RunningMan

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#1696819 31-Dec-2016 14:04

To definitively test if this is the case, power off completely one of your receivers (not just in standby, but powered off). This will prevent any background task, timer or whatever wanting to change satellites in the background, meaning there should be no signal interruption to the other receiver.

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djtOtago

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#1696821 31-Dec-2016 14:10

Which Sat box is rebooting at 10pm?

Why do you think it is some external signal causing the box to reboot?

Both the sat boxes you are using are reasonably common, so if there was some signal from the satellite causing them to reboot I would have expected to see more complaints by now.

It is more likely whatever is causing your box to reboot is local to you or your setup.

I would be looking at the box itself, Power supply, anything else switching on or off at 10pm.

henk

7 posts

Wannabe Geek

#1696822 31-Dec-2016 14:13

Sure I do that tonight, switch one off completely, done some more reading and placed an order for a multi switch,

should be here sometime next week, I will post the results once completed both.

have a great start to the new year! thanks again

RunningMan

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#1696826 31-Dec-2016 14:27

Go and celebrate New Years rather than testing TV stuff tonight!

Either way, once you've done a little testing, report back with the results if you're unsure as to what the results mean, or what to do...

henk

7 posts

Wannabe Geek

#1700117 8-Jan-2017 08:30

Received Multi-switch yesterday, installed and tested fine, both Sat boxes now switch independently, never realized that

they did not before, with all the other options, internet, terrestrial, hard drive movie store, there was never a clash I recall.

Happy to say that there was no signal interruption last night, so all good.

The only problem is that the Multi-switch has only two satellite connections in, one terrestrial in and two TV out,

so I lost the IS 19, however there was not much on that one anyway.

Thanks again on resolving this, help was much appreciated

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