Issues Viewing KU-Band Channels on a Multi-TV Setup with DiSEqC Switch

Thanks for the great detail

el bandido,

Thanks for the wealth of information you provided. I have been on the road last couple of days and will respond back when I return! Thank you!
 
ArloG said:
Mission accomplished. Easy now. Just wondering what method would be used in a receiver to switch between the different inputs by each receiver.
Gotcha' didn't I?

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Okay, you have your gotcha moment!
Now I got to ask: Why would you need such a switch? Seems I remember someone using a switch like that, but it is geared toward a commercial setup. That switch feeds up to 4 pairs of lnbs and up to 8 receivers. It has a voltage switch for horizontal and vertical transponders, then it has a diseqc 2.0 switch to select the pair of lnbs you are wanting to use. It is a nice, professional switch. But not very practical for most fta satellite systems.
 
WilburSmith said:
el bandido,

Thanks for the wealth of information you provided. I have been on the road last couple of days and will respond back when I return! Thank you!
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Check your voltage coax cable voltage on the switch that is not working. see what the voltage is after running through the switches. You may be able to get that switch setup to work if you can find the reason you lose ku band.
 
el bandido said:
Okay, you have your gotcha moment!
Now I got to ask: Why would you need such a switch? Seems I remember someone using a switch like that, but it is geared toward a commercial setup. That switch feeds up to 4 pairs of lnbs and up to 8 receivers. It has a voltage switch for horizontal and vertical transponders, then it has a diseqc 2.0 switch to select the pair of lnbs you are wanting to use. It is a nice, professional switch. But not very practical for most fta satellite systems.
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Thought you'd enjoy the 'the guy has to be full of it' moment.
Seriously though now. That is the question that pondered me.Why? How? Or in the case of Wil. Maybe?
There are the guys really into it who use 4 lnb scalars or the ones with probably too many ku lnbf's on an offest dish.
Certainly a commercial unit. And manuals on things like these are really hard to find and sometimes even harder to understand.
Like the Televes devices. Still don't get the flex port thing.
But it comes to mind the if-and-when a solution is needed. There's something out there that fits the bill.
L band over fiber. Commercial stuff too. Interesting stuff.
Catch y'all later. I got an eye-fone with a bad lightning/charge port and a lady's laptop her kid spilled milk in the keyboard that's heat riveted in with 80 mushroomed over pins. Joy. Heat, solder, glue, and goo. People haven't even paid their old eye-fones off and they come out with a new one. Have I mentioned I love apple? pffft!
 
How I Successfully Set Up C-Band and KU-Band Satellites with Multi-Room Viewing

I wanted to share my experience on how I managed to get my satellite system working seamlessly, allowing me to watch both C-band and KU-band channels from different rooms. Hopefully, this will be helpful to others who are working on similar setups.

Here’s the breakdown of how everything is connected:

C-Band Dish:

I connected the output from the C-band LNB (dual output) to the LNB D input on the DiseqC 2.0 switch (Axing SPU-41-02).

KU-Band Dish:

The KU-band LNB (single output) is mounted on a dish equipped with a MOTECK SG-2100 motor, and this is connected to LNB A on the DiseqC switch.

Single Coaxial Line into the House:

From the DiseqC switch, a single coaxial line runs directly into the house and connects to a Perfect Vision 2-way splitter (PV23-402).

Multi-Room Setup:

One output from the splitter goes to my main entertainment room. The second output goes to another room.

In these rooms, I’ve connected two priority switches, allowing me to create a master-slave setup where I can view satellite channels in other rooms.

Here’s where things get even more interesting: I can control the motors on both dishes from anywhere in the house. Using my smartphone, I log into the server of the receiver in the main entertainment room. This allows me to switch satellites and change channels remotely. The convenience of using a smartphone over a remote control is undeniable — it’s easier to clean and less likely to get damaged, which makes it an ideal solution for me.

Switching between C-band and KU-band satellites is completely seamless, and I’ve had zero issues with the signal or quality. I am truly delighted with the final outcome.

Lastly, I want to extend a huge thank you to everyone who offered guidance and support along the way, especially EB. I know EB might not be thrilled with the number of switches involved in this setup and the potential for signal degradation, but honestly, I haven’t experienced any problems. Everything is operating perfectly on my end, and I couldn't be happier!
 
The PV23-402 blocks power on one side of the switch.
PV23-402_0.webp

Your setup (No diagram included) shows four(4) FTA receivers, but you only list one. This is okay in this particular instance, but for best results, everything in the system should be listed.

For most users, a setup like this would not be very practical. Two of the four receivers are automatically dead due to the voltage being blocked on one side of the splitter and are unable to power the lnbf(s). A receiver has to be running on the powered side in order to use one receiver on the non-powered side, and both receivers will need to changed when a different polarity is selected. Having to switch one receiver off in order to use another receiver due to the priority switches would also be an inconvenience or headache for most users.

FTA satellite systems are designed to have antenna system losses and have built-in amps to cover the losses in cabling and switches. A system with minimal losses usually performs better when compared to an otherwise identical system that has more loss. Bad things happen when you start losing a lot of receiver voltage due to antenna system losses and bad things happen when you manage to mix different receivers voltages. Insertion losses are acceptable as long as the signal quality is not bothered.

Put simply, there are much better ways of putting this system together, including using one cable band stacked lnbf's if they are still available. At the end of the day though, it only matters that you are happy with it. Congratulations!
 
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