Receiver won't turn on when connected to a splitter

[equant]

I purchased several 2 and 3 way splitters from Sadoun and they work brilliantly on my Cband and Ku LNBs, but...

When I take the signal from my DishNetwork dish and split it, my Visionsat *and* my Coolsat 4000 exhibit the same behavior. They turn on, think, and then turn off. Then there's a "pulsing" (sound and video) on the TV as if it's turning off and on.

If I take the signal straight from the DN dish to either receiver, I get NASA and the free audio channels no problem.

Does anyone know what this is about?

The splitters are "Power Passing". PV23-303 if it helps.

Thanks.

 

[Anole]

The DN LNB is a twin? Receives two satellites?
There are at least three models, and it would help to know which you have.
Legacy, Dish Pro (bandstacked), or Dish Pro Plus (bandstacked and more).
You can't split bandstacked after a switch.
You can't split Legacy at all

edit: And, you don't want to connect two receivers' live LNB ports together through a power-passing splitter.

 

[gillham]

I purchased several 2 and 3 way splitters from Sadoun and they work brilliantly on my Cband and Ku LNBs, but...

When I take the signal from my DishNetwork dish and split it, my Visionsat *and* my Coolsat 4000 exhibit the same behavior. They turn on, think, and then turn off. Then there's a "pulsing" (sound and video) on the TV as if it's turning off and on.

That part number claims to be a diode steering splitter on one website, but I don't see any mention on any others. I would say it is not, or is not working properly as it sounds like you're backfeeding power into the opposite receiver. Also you are not terminating the 3rd output or connecting it to the TV or something else?

As Anole asked, what dish, equipment, cabling, switches etc are involved?

 

[equant]

The DN Dish is a Dish 500. I don't really know anything else about it. It was the previous homeowner's.

I haven't gotten to the part where both receivers are hooked up to the splitter at one time. In order to isolate the problem, I set it up so that it was (DN dish -> splitter -> receiver -> tv) ... That's all. No other dishes, no other receivers, no switches. I did test the setup once with the Coolsat4k and once with the VisionSat. Same results regardless of receiver.

However, I do have the same type of splitter splitting my BUD C-band and Ku-band to my VisionSat and 4DTV with success. Is this dangerous?

 

[gillham]

The DN Dish is a Dish 500. I don't really know anything else about it. It was the previous homeowner's.

Look at the check switch info. Power off (with the remote) and press the Info button. Or menu-6-1-3. The "Satellite" and "Device" lines are the interesting ones for us. That is lines G & H.

I haven't gotten to the part where both receivers are hooked up to the splitter at one time. In order to isolate the problem, I set it up so that it was (DN dish -> splitter -> receiver -> tv) ... That's all. No other dishes, no other receivers, no switches. I did test the setup once with the Coolsat4k and once with the VisionSat. Same results regardless of receiver.

Well first off the splitter will not really work for what you want with a Dish 500, so you don't really need to worry about trying it. But... if you're hooking the splitter with "source" towards the Dish 500 and port 1 on Dish receiver, it should work like a couple or barrel connector. If you have a multi-meter test for a short between the center conductor and threads on the splitter. If you're hooking up just one device at a time and they are behaving like this, I would say there just about has to be a short. Confirm which ports you're connected to and that your patch cable is good.

However, I do have the same type of splitter splitting my BUD C-band and Ku-band to my VisionSat and 4DTV with success. Is this dangerous?

I think so. Unless you're blocking power on one of those ports you will be backfeeding power to the opposite receiver. Even if you turn LNB power off.
Look up "BUD slave kit" on Sadoun or other sellers. Basically it is a power pass on *1* port splitter.

Have you tried using the loop out port on the VisionSat to feed the BUD?

 

[equant]

Look at the check switch info. Power off (with the remote) and press the Info button. Or menu-6-1-3. The "Satellite" and "Device" lines are the interesting ones for us. That is lines G & H.

I don't have a DishNetwork receiver, just the Dish. I know it can see 119 and 110, and has a Diseqc switch built into it.

Well first off the splitter will not really work for what you want with a Dish 500, so you don't really need to worry about trying it.

Just to be clear - since I can explain things poorly - all I want to do is have NASA and the free DishNetwork radio stations available on both of my FTA TV Setups (separate rooms).

But... if you're hooking the splitter with "source" towards the Dish 500 and port 1 on Dish receiver, it should work like a couple or barrel connector.

I have no Dish Receiver, just the two previously mentioned FTA receivers, but the orientation you mentioned is how I was testing it. I assumed it would work just as you said (like a barrel connector), but it did not.

If you have a multi-meter test for a short between the center conductor and threads on the splitter. If you're hooking up just one device at a time and they are behaving like this, I would say there just about has to be a short. Confirm which ports you're connected to and that your patch cable is good.

I quickly tested, and no shorts. Also the splitter works if used to split a bud's c-band, so I don't think there's anything wrong with the splitter. Tested the cables, and used several different cable combinations.

I think so. Unless you're blocking power on one of those ports you will be backfeeding power to the opposite receiver. Even if you turn LNB power off.
Look up "BUD slave kit" on Sadoun or other sellers. Basically it is a power pass on *1* port splitter.

It's been working for a couple weeks this way. The arrows on the splitter show power going from the outputs to the input, but not from output to output, this is why I figured it was safe. Doesn't it seem like they should work for this configuration? Otherwise all multi-room setups would need a master-receiver right? Are you saying that only one receiver can provide power to a given LNB? This seems inconvenient since we might have selected a receiver to use a different LNB via a diseqc switch, and thus the first LNB would have no longer have power; useless to any other receivers right? I must be confused. I'll go re-read the FAQ thread about switches.

Have you tried using the loop out port on the VisionSat to feed the BUD?

This is a good question. I originally had it setup like that. I'm trying to remember exactly why I changed... Sometimes if the FTA receiver didn't see a signal, the 4DTV wouldn't see one either. So if I'm on a satellite, and I change the channel on the 4DTV so that the polarity changed, the FTA receiver would say "No Signal" and the 4DTV would see the new channel that I changed to, but sometimes it would then go away (I can't remember if this always happened, happened right away, or happened after a while). This might have just been with the Coolsat or the Traxis. I don't know if I tested it with the VisionSat.

 

[gillham]

Just to be clear - since I can explain things poorly - all I want to do is have NASA and the free DishNetwork radio stations available on both of my FTA TV Setups (separate rooms).

Are you saying that only one receiver can provide power to a given LNB? This seems inconvenient since we might have selected a receiver to use a different LNB via a diseqc switch, and thus the first LNB would have no longer have power; useless to any other receivers right? I must be confused. I'll go re-read the FAQ thread about switches.

You need to run two lines from the dish, one to each receiver. That is the way it is done properly. Anything else has severe limitations.

Multiple receivers can provide power to an LNBF that has a builtin switch, or is a "dual output" LNBF, by having one cable per receiver. You should not expect to have two receivers powering the exact same piece of cable.

Try powering up the receiver just plugged into the splitter, without the DN dish attached.

 

[Mr Tony]

With the Dish500 with the built in switch it wont work. You cant have 2 switches in line.

Easiest thing to do is to get a Legacy dual (which sees only one satellite) and replace that LNB on that dish with the dual. Then all the switches built into the Dish LNB is gone and hookup would be easy with a diseqc switch (which it sounds like you already have)