[Expat]

En test af Iverto C120 Whitetech lavet af ‘Snap’ i Madrid I Danmark er H transponder på Astra 2D svager en V ( med undtagels af Tr54 10.906 V som er meget svag). The Inverto Silvetech LNBs, with a noise figure of 0.3dB, seem to perform better than the Whitetech range. Inverto Silvertech LNBs seem to perform better than the Smart Titanium according to some reports on the Internet. A Test carried out by Snap in Madrid using an Inverto C120 Whitetech single LNB, gave the following results:

Tested an Inverto C120 white tech single on my dish in Madrid this week, with a surprising result. At 00.45 CET, the Invacom Quad C120 fitted on a Prodelin 180 cm dish gave the following on a Lacuna/Wolsey Mk3 meter:- TP 45 10773 H …signal quality of 4.75 or 50 numeric TP 46 10788 V… signal quality of 6.5 or 68 numeric TP 4 11778 V ( Sky default transponder) 7.5 or 78 numeric

The Inverto had values of:- TP 45 10773 H … signal quality of 3 numeric 32 TP 46 10788 V… signal quality of 6.5 numeric 68 TP 4 11778 V … signal quality of 7.5 numeric 77

Threshold of picture break-up is around a value of 4.5 using a Pace TDS 470 n, Pace 430n or Thomson HD. Threshold is slightly better, a value of 4.25, on a Pace 2600 CI. This value is shown on the meter by a number of bars on a scale of 1 – 10, with 10 being maximum. The second value is a number on a scale of 0- 99. What do these values mean in the real world? The Invacom was delivering a perfect picture on both BBC transonders. The signal on 10773 H was just above the threshold at which a picture will start to show break up, with BBC 2 BBC 3 and BBC 4 all received flawlessly. The Inverto gave perfect picture on TP 46. TP 46 carries BBC One regions. TP 45 was only just about locking, and showed ‘no satellite signal being received’ on the receiver, tuned to BBC 2. Conclusions: the Inverto is very good on vertical 2D transponders and is an inexpensive alternative to the Invacom. It would be a poor choice in territories such as Spain and Portugal, as the LNB’s horizontal polarity performance is poor. It is the smallest LNB on the market, quite useful for some dishes such as the Gibertini 1.2 and 1.5, which has an inadequate mounting bracket for large LNB/feedhorn combinations such as Invacom/Channelmaster, which tend to tilt backwards when fitted to these dishes