The "Ku" band satellites (110/119) are not new, They are Echostars (Dish Network birds) Direc leases from them which is why they are migrating off them to the new KA band birds
Thost "B" band converters are for the Ka band birds.. Direc decided to rube goldburg the LNB's instead of doing it properly.. Typical of many companies I fear
(The proper way would have been to build the B-Band converter, which is a frequency translator, which by they way your De-Stacker is, into the LNB or into the receiver (either one)
Nothin adds excitment like something that is none of your business John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377
OK, now you guys are confusing me again! LOL
When I install this 9762 I'm going to have ONE cable going to the so called TUNER that KING DOME provides ( and maybe get that "adjusted" to look at right birds...in this case DISH networks 110,119, and 129) then ONE? cable to my receiver? Right now I have ONE cable but it has a spliter (two actually) or duplexer? that is in the line from outside attached to the back of my 722 receiver. Where it is attached it is split by the duplexer or spliter and attaches to SAT 1 & Sat 2 on back of receiver.
Whitout doing that spliter/duplexer thing then I would think that I would run TWO cables, on to the SAT one and one to the SAT2 on receiver...but then what about the TUNER from KING DOME???? Where does that come in???
I understand that recording...or watching...two different stations is only possible if that are both on the same satellite, I'm just still a bit confused on hooking up the dual room DVR thingie.
Will be wonderful if I can hook up without having another BOX in back of coach...or will I????
Geeeeez soooooooo confusing!
Forum has been, and still is interesting reading!
Thank,
John
stevelv wrote: OK, the dome has 2 connectors labelled Aux and Main and a single coax goes from the AUX connector (no idea why it doesn't go from Main) and enters the coach. The single coax then enters a black tuner box that connects to the LCD control panel and a single coax leaves this and enters the destacker (NAS SCD 1UT2) and this has 2 coaxes that run through to the 2 inputs on the DVR.
This is really interesting, and I don't understand at all why it works for you! I must be missing a key piece of information.
First off, I assume you are switching between multiple satellites? If so, my understanding is that the receiver's switch commands need to be sent to the dome via the MAIN port, and that it isn't listening for such commands on the other port. So I don't understand how that works, unless the wiring in your dome is non-standard.
I had asked the KingDome people if they had a frequency stacking LNBF so that I could run two tuners on one cable. They said they had looked into it, but they don't have a workable solution.
Secondly, I see where you have the destacker, but I don't see anything that stacks the two LNBF outputs in the first place. Once again, my mind is drawn to non-standard wiring in the dome. Maybe it's got a special LNBF in the dome with a built in stacker? If so, maybe it's not compatible with the dome's built in RF circuitry, and that's why it's routed out the second port? I just don't understand.
wa8yxm, do you have any theories on what's going on here and how he got it working? (I'm not an RF engineer, or a ham techinician, but I am an engineer that understands the basics of RF, frequency ranges, and superhetrodyne frequency block conversion. I couldn't design a system like this, but I could point to a block diagram and talk semi-inteligently about what's going on.) Any chance you (or anyone else) can explain this to me?
Ritterbach1 wrote: OK, now you guys are confusing me again! LOL
When I install this 9762 I'm going to have ONE cable going to the so called TUNER that KING DOME provides ( and maybe get that "adjusted" to look at right birds...in this case DISH networks 110,119, and 129) then ONE? cable to my receiver?
That's where I'm at right now. I was just about to run that second cable, but ran into enough dome and tuner issues that I'm not sure I going to waste the effort.
Quote: Right now I have ONE cable but it has a spliter (two actually) or duplexer? that is in the line from outside attached to the back of my 722 receiver. Where it is attached it is split by the duplexer or spliter and attaches to SAT 1 & Sat 2 on back of receiver.
The you must have a Dish Pro Plus LNB on your dish. Looking at the back of the LNB on the arm in front of the dish, it should be plainly labeled.
The Dish Pro Plus (not to be confused with Dish Pro) technology puts a switch and a frequency stacker in the LNB. This requires a better quality cable that can go to 2150 MHz (instead of the normal limit which is 945 MHz, I think?) but it allows two independent satellite signals to be stacked on one cable. Then, that one cable goes to the Dish Pro Plus Separater (fancy term for a splitter, this particular one is not really a destacker) which allows the signal to go to both satellite inputs. Finally, The Dish Pro Plus compatible receiver you have has the circuitry inside to destack and properly convert the frequencies. This is the setup I have at home: one cable to each dual tuner DVR.
Quote: Whitout doing that spliter/duplexer thing then I would think that I would run TWO cables, on to the SAT one and one to the SAT2 on receiver...but then what about the TUNER from KING DOME???? Where does that come in???
The diagram is in your dome manual. Without some sort of stacker/destacker arrangement, you do need two cables from the dome. One goes from the MAIN output of the dome, into the little black tuner box, and out from there into the satellite 1 input of your receiver. The other cable comes from the second port of the dome, and goes straight to the second tuner input of the receiver.
Quote: I understand that recording...or watching...two different stations is only possible if that are both on the same satellite, I'm just still a bit confused on hooking up the dual room DVR thingie.
Will be wonderful if I can hook up without having another BOX in back of coach...or will I????
Geeeeez soooooooo confusing!
Forum has been, and still is interesting reading!
Thank,
John
The way I understand it, without some sort of frequency stacking, you will need two cables from the dome to feed two tuners. It doesn't matter if it's a dual tuner receiver feeding two sets, or two single tuner receivers. The folks at KingDome say it will be more reliable with two single tuner receivers. I don't understand why, but given how much I've banged my head against the wall with my dual tuner receiver, I can't prove them wrong.
The best solution might be two single tuner receivers, just so the KingDome folks will support you with no questions asked and no finger pointing. But Dish does not make a single tuner DVR. If you want a DVR, then you get dual tuners, and I don't think it makes any difference if that dual tuner recevier is a 722, 622, or 612, as we discussed privately. You might as well use your 722 so you can control both sets independently. Using any dual tuner receiver, and then adding another box for the back bedroom (a third tuner!) will really complicate things. You think it's complicated now?
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BTW, I'm really enjoying this conversation. I would love to be able to get everyone involved gathered around a campfire to talk about this, drink a few cold ones, and maybe draw a few diagrams in the sand with a stick! (I was going to say make some drawings on a whiteboard, but we are camping, after all. )
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I don't want to get too involved as you guys are using DISH and I'm using DirecTV and there may be some confusion going on here.
It appears that my Dome is duplexing the signal from the dual LNB onto a single coax - that enters the MH and goes into the Tuner - the tuner is the thing that reads the Satellite ID data and signal strength and allows me to choose the sat that I want to view. The signal then daisy chains onto the destacker that divides the signal into 2 signals - one from each of the LNB feeds - and these go into the dual receiver DVR
My diagram shows that instead of sending the signal to a dual receiver DVR, I can seperate them, one to a front receiver and one to a rear receiver in the bedroom. HOWEVER, they would only be single channel receivers. There is no way that you can have a dual receiver DVR up front AND a single (or dual) receiver in the bedroom, all receiving independent feeds - plus the control voltages would screw it all up anyway.
So, you have 2 sat signals that you can send where you want. I'm really suprised that splitters were mentioned as I was told never to use a splitter in the feed line from the dome to the receiver - but then maybe that was a DirecTV thing.
What I do not have is auto switching between 101 and 119 - I seem to remember that I did once, and I have to have the KingDome set to 101/119 instead of 101 or 119 and that's meant to make it autoswitch. Wasn't reliable and so I just manually switch it now as needed.
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stevelv wrote: I don't want to get too involved as you guys are using DISH and I'm using DirecTV and there may be some confusion going on here.
The basic technology is pretty much the same, but there are some implementation details that are different between the two providers.
Quote: It appears that my Dome is duplexing the signal from the dual LNB onto a single coax - that enters the MH and goes into the Tuner
Yes, it does appear that way. This is the part that is both surprising and intriquing.
Quote: There is no way that you can have a dual receiver DVR up front AND a single (or dual) receiver in the bedroom, all receiving independent feeds - plus the control voltages would screw it all up anyway.
It would take a bunch of switches and special wiring, but you'd still be limited to everybody watching the same satellite.
Quote: I'm really suprised that splitters were mentioned as I was told never to use a splitter in the feed line from the dome to the receiver - but then maybe that was a DirecTV thing.
Correct. Splitters are a no-no. You can use a diplexor to merge in an over the air antenna feed, and split it out again, but you cannot use a splitter to connect a single coax line to more than one receiver.
The only exception I see to this is the Dish Pro Plus receivers, which have dual tuners that can be fed from a single coax. It looks like a splitter, and it pretty much works like a splitter, but Dish Network is very careful to call it a separator, not a splitter. It lets you hook the single coax to both tuner inputs of the dual tuner DVR. It's used like a destacker, but it's not a destacker in and of itself. Most of the destacker hardware is built in the receiver. You can think of the separator as more of a front-end to the destacker.
Quote: What I do not have is auto switching between 101 and 119 - I seem to remember that I did once, and I have to have the KingDome set to 101/119 instead of 101 or 119 and that's meant to make it autoswitch. Wasn't reliable and so I just manually switch it now as needed.
That help explains some of the mystery. I assumed you had it set for automatic switching. Therefore, there is no need for the dome to receive any satellite switch commands from the receiver. It still needs to get the odd/even transponder signal, but even the second output port can respond to that.
But in your description, it sounds like you said the wire from the tuner goes to the second port of the dome, not the main port. That still confuses me. I've been inside the dome recently, replacing parts under warranty, and only the main port has the tie-in to the logic that controls the dome. The other port is simply a straight-through passthough from the second LNB output. So I'm still confused how it works. As I said before, maybe there's some non-standard wiring involved.
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