Bsc621

sledgehammer · #1 (**permalink**) 09-19-2006, 06:42 PM

Just bought one of these new dual LNBF's for my existing dish and hoping to get it going soon, looking for any help that might get me started.
Here is a little backgrounnd info on my setup: 10ft dish setup and working with c-band signals right now and is motorized had in use for about 12 years with a Toshiba reciever w/digicigher II, new Viewsat extreme FTA reciever,various splitters and Esqu swithes.
Have hooked up the Extreme to existing set up and able to recieve signal. But quality is not stable, with this set up ready to hook up BSC621 now and try it but have a "J" type of mount and not sure of mounting and ring setup for BSC621.
Any ideas and setup trouble shooters would be a great help have read the post on the subject from earlier.

Thank You Sledgehammer.

rainman · #2 (**permalink**) 09-20-2006, 07:26 AM

the ring should mount to your button hook like the other ring on the old feedhorn.and welcome to the forums.

elgemcdlf · #3 (**permalink**) 09-20-2006, 08:37 AM

If your Toshiba can not handle universal Ku lnbf you will not get any Ku benefit from the new lnbf on DCII. If your Toshiba can not handle lnbf's you may not get any benefit at all and may in fact have no use of the Toshiba receiver.

You could possibly control the lnbf from the DVB receiver but still think you are going to lose use of your Toshiba receiver.

pmb1010 · #4 (**permalink**) 09-20-2006, 06:28 PM

It might work. If the DCII box puts out 10750 and the LNBF is expecting 10600, it might show channels 150mhz off freq.
My analog receiver does just that. I am controlling the V/H via IF passthru on a Fortec Ultra box.

It cannot hurt to try to get the test Ku analog transponder on 11820H a few channels up from Ch6

wejones · #5 (**permalink**) 09-20-2006, 07:40 PM

Quote:

Originally Posted by pmb1010

It might work. If the DCII box puts out 10750 and the LNBF is expecting 10600, it might show channels 150mhz off freq.
My analog receiver does just that. I am controlling the V/H via IF passthru on a Fortec Ultra box.

It cannot hurt to try to get the test Ku analog transponder on 11820H a few channels up from Ch6

I think you reversed your "puts out" and "is expecting". Ie it's the LNBF that "puts out" 10600 and the DCII box that's "expecting" 10750.

But like you say, the receivers will just be getting signals 150 MHz high. This won't be an issue on the Toshiba, other than he'll be missing the upper channels on Ku. He didn't say what "DCII box" he has. If it's a 4DTV, he'd have a LOT of trouble on the KU channels, because even if you tune a MUX, it downloads the IF freqs into a map, and I think that all the freqs would be off by 150, so a 4DTV might not see anything digital. With a commercial DCII, he'd have the same problem, except that after it downloads the VCT, you can often re-tune on each channel, so it might be "possible" to see channels, but it sure wouldn't be easy. I used to have an LNB that would drift off freq by several MHz, and I could load in the VCT, but every time I tried to change channels, it would look in the wrong place, and it would take me a couple minutes to bring the channel in... and that was just being 3 MHz off. But I also once had a Ku LNB that was 20 MHz off, and used that without any problem on analog. Not much analog left on Ku though, as you found out.

pmb1010 · #6 (**permalink**) 09-20-2006, 09:13 PM

Quote:

Originally Posted by wejones

it downloads the IF freqs into a map, and I think that all the freqs would be off by 150, so a 4DTV might not see anything digital. .

OK, I didn't know this. Now I understand why the Universal LNBs are so trouble some to 4dtv receivers... the receiver I have doesnt give a rat's patootie what channel I'm on. These are more "fussy".

sledgehammer · #7 (**permalink**) 09-22-2006, 12:23 PM

Wow, alot of commints, And Thank You for welcoming me to the forum.

I understand the basic set up hook this wire here ,plug this into here kind of stuff; been a long time since I messed with this stuff and a lot has changed with the new tech. out there just trying to catch up, its the tech stuff not sure of, distance ring is from center, feed horn adj. ect. . Seen commints from earlier post to set the ring flush with front of feed horn but this was on 120cm dish with a different type of ring, should I get this other ring is this one no good ? The old feed horn doesn't mount on the ring it is held by a u-bolt the ring is free no mount (center mount for feed horn, single pole) I thought this was a "j" mount, if not sorry.
Some of you mentioned can the old reciever handle Ku ...Yes if it couldn't , would not use it. Can adj. freq. as well. Its main function is to pick up analog c-band and as the dish mover. unless some one knows how to wire up a Viewsat FTA to this. Don't see any hookup on reciever for this. Will this all work the way I think it will or should I make the dish fixed and forget the mover part?

elgemcdlf · #8 (**permalink**) 09-22-2006, 01:02 PM

I have my BSC lnbf mounted and both skewed and focal length set to optimum signal on a 8.5' mesh dish. The face of the lnbf is just about flush with the scalar ring. Sticks out just a hair. As to your receiver doing Ku that is not what most of us are referring to. The BC lnbf is a 10600 Ku lnbf and most receivers for big dish that I know of work with standard lnbs (10750). I assume the skew would work basically the same as a small dish as long as it was set to 0 when you were pointed south.

Bottom line is it is only a $50.00 lnbf so you really do not have that much to lose if it doesn't work as you desire. Sadoun sells a box that will allow a DVB FTA receiver to move the actuator on a big dish.

sledgehammer · #9 (**permalink**) 09-23-2006, 05:05 PM

Thanks, this should help in getting started... will let you all know how it works out. On moving the dish; always kinda thought I might have to do something different. Trying to use what I have with out a lot of extra cost.
The only real question I have now is wiring this up, modified the diagram of using a two coaxial wire (one C band and one Ku band)and two splitters. One wire (that is the incoming feed C/Ku)from the new LNBF.split it then one to the old box and one to the esqu switch to the new box.

wejones · #10 (**permalink**) 09-23-2006, 07:30 PM

Quote:

Originally Posted by sledgehammer

Thanks, this should help in getting started... will let you all know how it works out. On moving the dish; always kinda thought I might have to do something different. Trying to use what I have with out a lot of extra cost.
The only real question I have now is wiring this up, modified the diagram of using a two coaxial wire (one C band and one Ku band)and two splitters. One wire (that is the incoming feed C/Ku)from the new LNBF.split it then one to the old box and one to the esqu switch to the new box.

Unless I'm not understaning your modified diagram, I don't think that will work. The only way to use one coax is to put a switch (perhaps Diseqc) out at the dish. You can't combine the two using a splitter, which sounds like what you are saying. Once your coax gets inside, it should probably go straight to your FTA box, since that will be what is needed to control the switch. Once you've done that, the best thing to do is connect your old receiver to the passthrough of the FTA box. Ie I don't think you can use splitters if you are going to use just one COAX. If you run two coaxes, then you COULD use a splitter inside, and have both C and Ku split, one leg going to the old receiver, and the other leg going to your switch into the new receiver, but you'd lose 50% of your signal this way.
I think you're better off just using a switch out at the dish, and no splitters at all.

sledgehammer · #11 (**permalink**) 09-24-2006, 01:38 PM

No, this type of feed horn combines the signal at the horn(dish) then send to reciever where you have to seperate or "split" to send to other recievers.I'll get the diagram to you ...some how!

The link is on Eye in the sky site under wiring diagrams... list dvb slave to C-band...

sledgehammer · #12 (**permalink**) 09-24-2006, 01:51 PM

This shows two infeeds from dish then spliting them to two recievers ... look at it and you will see.

elgemcdlf · #13 (**permalink**) 09-25-2006, 08:33 AM

The lnbf you speak of can be set up with one feed line going into the house utilizing the internal DiSEqC switch or running seperate lines for C and Ku and tieing them together with an external DiSEqC switch. I do not know of any way to split them back apart unless you used an external DiSEqC in the house and tied lines to the same port designator for each band as used out at the dish. Perhaps that would work but just as easy to run 2 lines into the house.

sledgehammer · #14 (**permalink**) 09-25-2006, 08:58 AM

Sure this sounds about right, but it will work using a DiscESqc switch at the house(recievers) dont need one outside it has its own internal. As for two lines this is what I was trying to avoid within the house... looks like a rats nest now, one more isn't what I want, this should work and yes to both recievers (check th diagram).
Thanks to everyone; plenty of great feed back.

elgemcdlf · #15 (**permalink**) 09-25-2006, 09:08 AM

You are working with 2 different animals that accept input in different ways. Good luck with your attempt and by all means let us know how it goes as I am sure many would like to cut down the number of lines running into the house.

The only way I can see using 2 DiSEqC switches is to match ports so that the signal sent down the line can potentially "open" the correct door at both switches. I was speaking of using the internal but do not know how it lines up with "tone" to a standard external switch so I can not say what port to use for C or Ku.

Also I do not know if a DiSEqC switch will pass in reverse which is what you will have to accomplish with the switch in the house. The inline amps and squeeler meters are directional along with every splitter I have seen.

wejones · #16 (**permalink**) 09-25-2006, 01:38 PM

Quote:

Originally Posted by sledgehammer

No, this type of feed horn combines the signal at the horn(dish) then send to reciever where you have to seperate or "split" to send to other recievers.I'll get the diagram to you ...some how!

The link is on Eye in the sky site under wiring diagrams... list dvb slave to C-band...

For some reason, I didn't see any link in your post, so I'm still not sure about exactly what you have in mind. However I did look up the data sheet on the LNBF, and I see what you mean regarding it having an internal DiseqC switch, however that just puts in into the category that I mentioned, Ie having a DiseqC switch out at the dish. I think I misunderstood your post where you said you "modified the diagram" relative to what you were trying to do.
However, given the fact that there is a DiseqC switch at the LNBF, there is still no reason that I can see for having even ONE splitter, let alone TWO splitters. I'd be interested in seeing the wiring diagram, because I don't understand what you're trying to do.

Basically, with a DiseqC at the LNBF, you need the FTA receiver to control whether you are on C, or Ku, regardless of any splitters you put in the diagram. If you put a splitter prior to the FTA receiver, you will be attenuating the signal to both receivers. If you simply connect your analog receiver to the passthru of the FTA receiver, you won't attenuate your signal, and you won't lose any capability, and no splitters are required. Be sure to use a DC block though.

Also, want to make sure that you understand that what comes in that single coax is either C or Ku, not both, and either H or V, not both. So that what band/polarity goes to the second receiver is only what the FTA receiver is tuned to.