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double
10-13-09, 10:16 AM
i need to know if you can run the 4 wires from the dish to 4 SWS-2 splitters. then run 4 wires (one from each sws) from SWS-2s to four sat receivers and run the other 4 wires to a SWM-8.

i know i can put sws2s in line from dish to 2 seperate multiswitches, i have done it succesfully, but i havnt gone off of one side of the sws2 directly to receivers.

if this will work, what should be connected to power passing side SWM8 feeds or 4 receiver feeds?

TIA
RobertE
10-13-09, 10:30 AM
Simple answer No.

More complex answer, still no. You can't use spliters to runn both receivers and a switch at the same time.

If you need more tuner support than a single switch will provide, you need to use a bigger switch or splitters to feed multiple switches. What you want to do won't work...ever.
eakes
10-13-09, 10:35 AM
Will NOT work! The four lines from the dish must be 'fixed' when connected to a multiswitch (or a SWM8). Splitting and connecting one output of each splitter to a receiver means the line cannot be 'fixed' to a particular mode - it would need to change as the receiver could request either one of the possible four modes depending on the channel selected on the receiver. If the receiver could be successful in changing the mode it was receiving from the antenna, then this would affect the device connected to the other side of the splitter - this is not a desireable outcome.

If you are going to split the lines from the antenna the outputs of the splitter must go to some kind of multiswitch (SWM8) for proper operation.
veryoldschool
10-13-09, 10:35 AM
Robert has it nailed.
What you may not understand is the SWM is locking the SATs to each of the coax being split, so the receiver will have no way to control what SAT it wants to tune to.
This is what a multi-switch does.
double
10-13-09, 01:59 PM
ok, thanks. would there be any reason to not put a wb68 in place of the splitters. 4 out of wb to swm8 and 4 to the 4 receivers?
BattleZone
10-13-09, 02:08 PM
You do not want to cascade from a non-powered switch. You really need to run them in parallel, as you described from the beginning.
Tom Robertson
10-13-09, 02:16 PM
ok, thanks. would there be any reason to not put a wb68 in place of the splitters. 4 out of wb to swm8 and 4 to the 4 receivers?

You were so close with your first thought. Now marry this thought and the first and you are gold: dish to 4 splitters. Each leg of splitter to a WB68 and SWM8 (any two switches work). Then you have your outputs.

The big key is to align the splitter outputs to the two switches. One splitter will be 13V/no tone--run both lines to those ports on the switchs. One splitter will 13V/22kHz, etc.

And the power passing side should go to the SWM-8 as it is powered.

Cheers,
Tom
double
10-13-09, 09:41 PM
Tom,
thanks, i do understand what you are saying and have always done that previously. it would be hard to get the wires necessary to do it properly. it is always the way i would want to go. i have done dish to 4 SWS-4 to 4 SWM8, etc. why should a swm8 not work off of a wb68 when i have seen several people here cascade wb68s off of wb68.
veryoldschool
10-13-09, 09:47 PM
Tom,
thanks, i do understand what you are saying and have always done that previously. it would be hard to get the wires necessary to do it properly. it is always the way i would want to go. i have done dish to 4 SWS-4 to 4 SWM8, etc. why should a swm8 not work off of a wb68 when i have seen several people here cascade wb68s off of wb68.
Maybe it should be asked "why do it?"
The SWM powers the LNBs and the WB68 becomes a point of failure to the whole system, where as if you run the two in parallel, the SWM then drives the LNBs, taking the "load" off the WB68, therefore acting like a powered switch, where the receivers merely send the switching voltage to the WB68.
Tom Robertson
10-13-09, 09:50 PM
Tom,
thanks, i do understand what you are saying and have always done that previously. it would be hard to get the wires necessary to do it properly. it is always the way i would want to go. i have done dish to 4 SWS-4 to 4 SWM8, etc. why should a swm8 not work off of a wb68 when i have seen several people here cascade wb68s off of wb68.

Can't get 4 more short coax? Bummer.

Cascading has been a problem for many people. It is not recommended as it can cause hard to diagnose problems.

Sorry,
Tom
Vin
11-10-09, 12:11 PM
Maybe it should be asked "why do it?"
The SWM powers the LNBs and the WB68 becomes a point of failure to the whole system, where as if you run the two in parallel, the SWM then drives the LNBs, taking the "load" off the WB68, therefore acting like a powered switch, where the receivers merely send the switching voltage to the WB68.

VOS, can I use splitters that are power passing on both legs when running the SWM8 and WB68 in parallel or must I use power passing on only one leg. Sorry, I know this has been asked and answered before but I'm still not certain that it matters one way or the other.

Also, if power passing on both legs is the way to go, can I use these > http://www.solidsignal.com/pview.asp?mc=03&p=P7002AP&d=Eagle-Aspen-2way-Splitter-for-Offair-and-Satellite-signals-(P7002AP)&c=Signal%20Splitters&sku=

or must it be these > http://www.solidsignal.com/pview.asp?mc=03&p=SP2WAPHL&d=Skywalker-2way-Splitter-for-Offair-and-Satellite-signals-(SKY23302D?

Thanks for your help.
carl6
11-10-09, 12:26 PM
Power passing on both legs should be okay (as long as it is really power steering so that power does not feed back through the other port).

If you use one port power passing only, then the SWM must go on the power passing port.

A quick glance at the two items you linked leads me to think either should work okay.
veryoldschool
11-10-09, 12:27 PM
VOS, can I use splitters that are power passing on both legs when running the SWM8 and WB68 in parallel or must I use power passing on only one leg. Sorry, I know this has been asked and answered before but I'm still not certain that it matters one way or the other.

Also, if power passing on both legs is the way to go, can I use these > http://www.solidsignal.com/pview.asp?mc=03&p=P7002AP&d=Eagle-Aspen-2way-Splitter-for-Offair-and-Satellite-signals-(P7002AP)&c=Signal%20Splitters&sku= (http://www.solidsignal.com/pview.asp?mc=03&p=P7002AP&d=Eagle-Aspen-2way-Splitter-for-Offair-and-Satellite-signals-%28P7002AP%29&c=Signal%20Splitters&sku=)

or must it be these > http://www.solidsignal.com/pview.asp?mc=03&p=SP2WAPHL&d=Skywalker-2way-Splitter-for-Offair-and-Satellite-signals-(SKY23302D? (http://www.solidsignal.com/pview.asp?mc=03&p=SP2WAPHL&d=Skywalker-2way-Splitter-for-Offair-and-Satellite-signals-%28SKY23302D?)

Thanks for your help.
These aren't a "must" but are a good choice:
http://www.a1components.com/itemdisplayn.aspx?item=4349
The SWM will power the LNBs, but should its power fail, then the WB68 [from the receiver] would then power the LNBs
Vin
11-11-09, 11:00 AM
Power passing on both legs should be okay (as long as it is really power steering so that power does not feed back through the other port).

If you use one port power passing only, then the SWM must go on the power passing port.

A quick glance at the two items you linked leads me to think either should work okay.

These aren't a "must" but are a good choice:
http://www.a1components.com/itemdisplayn.aspx?item=4349
The SWM will power the LNBs, but should its power fail, then the WB68 [from the receiver] would then power the LNBs

Ahh, okay, I get it...power passsing on both legs provides some insurance and also makes it impossible to connect the SWM8 to the wrong leg.

I'm currently cascading 2 WB68s which I know is not recommended but haven't had any issues. Nevertheless, I thought I'd do it the right way when I add the SWM8 to my set-up.....thanks for your help guys.