KLBS1 Sadoun band stacked Linear KU band Single LNBF

[Mr Tony]

The stacked C-Band LNB works great. I had 3 receivers running off of it.
LNB-------sat splitter--------diseqc switches

The reason I put the C2 on was at the time 2 fold
-analog
-the Quali receiver has only one C-Band LNB LO of 5150 and you can't add one. So all my horizontal TP's had to be lowered 600 (so World Harvest at 4000 H 26400 was at 3400 V 26400). It got too cumbersome to play the math game

Also I have a 4x4 multiswitch in the basement...2 lines from the C2 C-Band and 2 from the motorized (there are actually 4 lines from the motorized....2 go to a 2nd 4x4) so I only need one switch to run 3 receivers

 

[Tron]

Sounds great... I remembered that you liked the performance, but recent talk of some analog on 99w made me realize that I'd need a destacker to get it. I think I'll sacrifice the few analog TPs for stacking capabilities though.

 

[Mr Tony]

Most of the analog is on G16 is vertical anyways so it will work fine.
It was more of the Quali quirk and the 600mhz drop on each H TP. Then when I had it aimed at another satellite that had lots of V & H TP's I ended up with 2 satellites in the CS8000 because that worked the same way. You only get one C-Band LNB LO
SO I had __________ V and ____________ H with 5150 set on V and 5750 set on H. I could use the right frequency but needed 2 sats

 

[melgarga]

bandstacked allows you to have one output to multiple receivers

Horizontal polarity is stacked on top of vertical so all you need is a satellite grade (up to 2200mhz) splitter

Well it looks like the link is fixed, I've been offline for a while battling a nasty lil worm virus, persistent lil b*atard......still not done disinfecting.......lol

Yeah, the splitter will give you the multi drop output, but what I was referring to was the first page info that inferred it was multi capable OOB, and the link to the 2nd page wasnt linked correctly so no mention at that time of the 'optional' splitter.

Still got to be an awesome lil addition to the FTA toybox regardless....lol
I'm inclined to agree that the ref to use of a 22khz signal is erroneous, Both polarities have to be active at the same time or it essentially defeats the purpose.

 

[Dee_Ann]

Please forgive my ignorance but could someone please explain what these band stack things are ? Would I need one? Or are the better than the kinds I have now?

I'm still trying to learn this stuff so that one day I cam have a nice system and so I won't have to ask so many dumb questions.

Thank you!

 

[Mr Tony]

A Bandstacked LNB allows you to use multiple FTA receivers off one cable by using a satellite grade splitter. What it does is takes the Horizontal transponders, "stacks them" above the vertical transponders at a higher frequency. Most LNB"s that have one output you can only hook up one receiver to. You get one polarity at a time. If you hooked 2 receivers to a normal single output LNB and tried to get a vertical polarity channel on one receiver and a horizontal polarity on the other, it won't work. They'll clash with each other

Bandstacked allows you to be able to have one receiver on V and one on H with no issues.

The drawback of a bandstacked LNB is some receivers don't like to "play nicely" with them. Sometimes they have a specific LNB LO (in the case of this LNB, its at 10100/10750 versus the normal 10750) and depending on the receiver it may not work that way.

The other drawback can be the frequencies it shows. Older bandstacked units the H transponders are between 12200-12900 so it may look different than what you're use to seeing. To find out what the "actual frequency" is, just take the frequency it shows from 24600

Some folks like bandstacked LNB's because if they have 3 of them they can use a Dish Network DP34 switch (for bandstacked LNB's) and hook up 4 receivers off one switch

 

[Dee_Ann]

A Bandstacked LNB allows you to use multiple FTA receivers off one cable by using a satellite grade splitter. What it does is takes the Horizontal transponders, "stacks them" above the vertical transponders at a higher frequency. Most LNB"s that have one output you can only hook up one receiver to. You get one polarity at a time. If you hooked 2 receivers to a normal single output LNB and tried to get a vertical polarity channel on one receiver and a horizontal polarity on the other, it won't work. They'll clash with each other

Bandstacked allows you to be able to have one receiver on V and one on H with no issues.

The drawback of a bandstacked LNB is some receivers don't like to "play nicely" with them. Sometimes they have a specific LNB LO (in the case of this LNB, its at 10100/10750 versus the normal 10750) and depending on the receiver it may not work that way.

The other drawback can be the frequencies it shows. Older bandstacked units the H transponders are between 12200-12900 so it may look different than what you're use to seeing. To find out what the "actual frequency" is, just take the frequency it shows from 24600

Some folks like bandstacked LNB's because if they have 3 of them they can use a Dish Network DP34 switch (for bandstacked LNB's) and hook up 4 receivers off one switch

Oooooh..... Ok.. Hmmm... Well, considering that this sounds like it's over my head, I'm assuming I won't be needing one any time soon.

All I have is the pc and the coolsat and I never really use the coolsat. I just bought it to have to help me find stuff when I'm not sure if the pc is working right. So it really just is sort of a tool I pretty much never use.

Ok, well I learned something new at least! And this will help me in future buying decisions so I don't purchase wrong or un-needed items. I like to be a well informed shopper. Well, as much as possible..

Thank you Mr. Iceberg!

 

[Sadoun]

HI All,

Some of you have already purchased the KLBS1 bandstacked LNBF. Let's hear from you on the performance and functionality.

 

[zamar23]

If one slaves a PC Card Tuner to Sonicview 8000 Receiver and hooks the STB to this bandstacked LNBF, will he be able to watch an H-polarized signal channel with the STB, and V-polarized channel with PC at the same time? Can channel selection on the same sat be controlled independently by the STB and PC simultaneously regardless of polarization? If not, why and how to resolve?

What bandstacked LNBF combo dual / quad models allow Circular L/R and Linear H/V signal reception similar to Invacom's QPH-031?

 

[Anole]

to the point:

yes
yes
-
none

 

[Mr Tony]

yes you can run 2 different receivers on opposite polarities at the same time. I did yesterday (Coolsat on V and Pansat on H)

I tried it out yesterday and still working with it. Need to see how well it acts to blind scan.

 

[Tron]

What bandstacked LNBF combo dual / quad models allow Circular L/R and Linear H/V signal reception similar to Invacom's QPH-031?

The LNBF you are describing is one of my two "Holy Grail" bandstacked LNBFs. The other is a C/Ku version of the Eagle Aspen B1STACK. It would be wonderful if someone would manufacture these dream LNBFs ...

 

[zamar23]

How about Superdish 121 LNB Ass. below? Is it really a bandstacked version? How to distinguish it from a regular version? What would it take for it to work with an FTA Dish and Receiver?

 

[Mr Tony]

The SD assembly will work as both are DIshPro (stacked) but I think Tron means all in one...not an offset

Heck I can take the Sadoun stacked KU and put a DishPro LNB next to it...thats the same thing

 

[Sadoun]

Any new reports or feedbacks on the KBSL1 from end users?

 

[mkanet]

Review: My KBSL1 experience

Here is a picture of the KBSL1 on my 36" dish.

I replaced my cheap old twin LNBf I bought from an all Asian flee market with the KBSL1.


The good news: This product what it claims, it split my satellite signal from Galaxy 19, 97.0W two separate tuners. I was even able to add a 3rd completely unrelated signal ATSC (terrestrial digital TV broadcast in HD) in the lowest frequency range using my Sonora diplexers.

The bad news: Unfortunately, this product doesnt do that great of a job with negative polarity transponders at higher frequencies. When the KBSL1 moves up the negative polarity TPS's to a higher frequency range, valuable signal quality is lost. This doesnt happen with the horizontal polarity TPs. The horizonal TP's will show the same signal quality and strength as I had with my old dual LNBf. This issue is reproducible by a friend who has same KBSL1.

So, although the specs look good on paper (such as very low noise figure [FONT=verdana,arial]0.4 dB[/FONT]). It definitely will take a toll on signal quality for negative TPs. This product is not for you if you already have relatively weak signal; especially if you plan to use negative polarity TPSs.

My friend took one of these apart and it appears that the design of this product favors horizontal over vertical. I realize these components are not that common; but, I am hoping that Sadoun is actively looking for a bandstacked product just like this that has a more balanced signal quality for both the vertical and horizontal.

If people like me and my friend see the same issue, I think its time for Sadoun to look for a higher quality bandstacked LNBf.

There are certainly other bandstacked LNBf's out there, but we need one that works just as good as a standard LNB for vertical (as well as horizontal) polarities.

I rate the quality of this product a 6.5 out of a 10. However, I am at least thankful it does the job; just not as good as I hoped.

-MKANET

 

[Mr Tony]

I'd love to give you a report but I have 9 inches of snow on the roof so I cant climb on the roof to put it on a dish

 

[pendragon]

I wrote up several of my initial reactions here. There is some loss in sensitivity in the very highest frequencies of the V polarization as mkanet noted, but the unit is still perfectly usable. As mentioned in the linked report, certain tuners inconsistently calculate CNR/signal quality and the Sadoun unit can exacerbate this problem. Nevertheless the tuners still receive fine, but report an unphysically low signal quality.

I was happy enough with the LNBF performance to pick up five more, and have since installed them in several positions on my toroids to perform acid testing on the high V spectrum. When compared to the other Ku bandstacked LNBFs, the Sadoun units win hands down, even at their weakest point. it's not like my other equipment is flawless by comparison.

 

[Tron]

When blind scanning transponders on my Eagle Aspen P870s, I notice that the frequencies are often off by 4 or 5 mhz. Normally, 1 or 2 mhz is to be expected. Maybe the bandstacked LNBs are "tuned" differently. Have you tried using blind scan to load in the transponders on the Sadoun LNBF?

 

[pendragon]

My gut feeling after spending time with the Sadoun LNBFs is they have more accurate LOs than Superdish-style LNBs, and are typical of garden variety Ku LNBFs. This is consistent with their specs. I haven't had a chance to compare the LOs at temperature extremes, though.

As far as blindscanning, the Sadoun units work just like any other LNBF - the receiver logs whatever frequency it sees. If the LNBF LO is off, the reported transponder frequency will be off by that amount.