Inverto Ultra Lnb

[Adam.]

Hi
I have a dish pointed to Astra 2D. At some transponders, mainly the vertical, the signal is not quite so good. I have heard that an Inverto Black Ultra LNB may improve the signal quality, but most at the horizontal transponders. So I want to hear if some of you have had some good experience with improvements at the vertical transponders using inverto?

 

[hvdh]

This is the first time I hear about different performance between H and V.
In any case, you may try skewing the LNB 90 degrees and swapping H and V in your transponder list!

The Inverto Black Ultra Single or Twin may also perform differently.
I recall reading that the Twin performs best on Astra 2D's frequencies.

 

[rolfw]

The difference in reception of horizontal and vertical channels is not to do with which LNB you are using, it's to do with the quirks of fringe reception. Now of course an Inverto black Ultra may improve reception of your vertical channels, but it will be because it is generally a higher performing LNB. A bigger/better quality dish is normally the best answer to improving signal.

PS. Have moved this thread to the specific section for Astra 28.2 Fringe reception.

 

[Adam.]

ah okay, thanks for the replies

 

[SergioBrasil]

here in Brazil hard to have good LNB
I'M EXPLORING HOW TO BUY IN EUROPE
SO WHAT BETTER
EASY BUY SMART GOOD PRICE IN EUROPE?

 

[archive10]

Hi
I have a dish pointed to Astra 2D. At some transponders, mainly the vertical, the signal is not quite so good. I have heard that an Inverto Black Ultra LNB may improve the signal quality, but most at the horizontal transponders. So I want to hear if some of you have had some good experience with improvements at the vertical transponders using inverto?

Verticals are the problem here in DK. Horizontals come in with higher signal quality.
I have used various LNBs (el-cheapos, sharp, as well as invacom), and have finally settled with the Inverto Black Ultra Quad.
It works very well on both H and V.

As there is not that big price difference, i'd say go for the inverto.
But as also suggested, dish size may have much more influence.
Can you let us know where in DK you are, and what dish you are using?

 

[archive10]

This is the first time I hear about different performance between H and V.

There is in fact quite a difference here in Scandinavia between the H and V transponders on 2D.
The Hs are more easier to pull in than the Vs.
this is evident from the reports on this site from norway, sweden and finland.
Probably something with the space-craft antenna design.

 

[archive10]

In any case, you may try skewing the LNB 90 degrees and swapping H and V in your transponder list!

I'm fairly certain this will make no difference.
It's the signals coming from space that, not the LNB internals, that make the difference between the H and V in Scandinavia.
Skewing the LNB and changing the transponder list just moves the problems from V to H!

 

[hvdh]

I have heard that an Inverto Black Ultra LNB may improve the signal quality, but most at the horizontal transponders.

My answer "This is the first time I hear about different performance between H and V."

st1, I was referring to the LNB, from Adam's post I understood that he thinks the IBU is especially good for horizontal transponders.
It's another thing that the verticals may be weaker there in Denmark!

Anyway, if there is just one polarity having trouble, it is easy and with a little luck worthwhile, to try the 90 degree skew "trick".
The routing inside the LNB of the H and V signals to the amplifier is different, and so is the location of the antenna probes.
This causes differences in performance between H and V across the frequency range.