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