FEED-HUNTING - ANDIAMO A CACCIA DI FEED

3) Requirements

For feed viewing is not need any particular equipment. Obviously more accessories you will have and less limits you will have.
Let's see what the are ''limits".

The dish - Great it is diameter, more feeds you will succeed in finding (without necessarily reaching dimensions of the photo). Keep in mind that % of signal of the feeds is almost always low (perhaps because who must receive have good equipments) for which, a greater dish will give you great possibilities. And we assure you, you will remain badly when someone will find the feed of your favourite team and you cannot "hook" the frequency!
However we say, that indicatively a 80 cms dish can be enough; the optimal one would be a 100-110 cm. Superior diameters are not also justified due to costs that, for few centimeters, they leaven to excess.
According to the myth of the feeds Stanley Cassidy with one 80cm have poor result on certain orbital positions, since a less strong signal or bed weather complicate notably the work. Somtimes also with a 120cm there are extremely weak signals that they succeed in hooking only after 25-30 attempts!

DVB Card - For feed hunting is strongly recommended Skystar 2.3P that has precious function AutoSymbolRate (see Skystar Museum to know the various models). Nevertheless this model is gradually disappearing from the shop, and you will be forced to be satisfied you with a recent model. If you have purchased a new version don't worry!also with some limit, we will succeed however to "go to hunting."
N.B.: This guide refers to the Skystar 2 but can be adapted to other cards DVB or to a normal decoder.

Motor - Motor is an accessory that, in feeds hunting's case, becomes an essential object. You could be satisfied with a dual feed (or straight a triple feed) but it would be a narrow limit in comparison to possibilities offered by the motor.
Besides the reduced cost and facility of assemblage we recommend you to take seriously in consideration of purchase it.

Technical characteristics of the FEED

Frequency

The feeds use, as the television chains, the Ku-band (frequencies include between 10700 and 12750 Mhz) and the C Band (from 3600 to 4200 Mhz). The Ku Band predominates largely in Europe, while the C Band requires a material more onerous and great dimensions dish.
SR (Symbol Rate)

It represents the ability of symbols for according to a transmission, an essential parameter to close a frequency in numbers. Many feeds are transmitted in SCPC (Single Channel For Carrier), what often corresponds SR inferior to 10000, while the television chains come for greatest part transmitted in multiplex MCPC (Multiple Channel For Carrier). In this case SR is generally superior to 20000, and of frequent peer to 27500
FEC (Forward Error Correction)

Varying from 1/2 to 7/8, it characterizes the part of the data that bring information audio / video destined to redundance correction. In practice, a relationship of 7/8 means that 1/8 of packets are issued for correction (during the receipt) and 7/8 remainders for the information. A transmission that uses a FEC 1/2 will need an inferior signal for reception because of optimal protection but it will transport, in remuneration, less useful information.
You imagine a police van with capacity 10 people. If we transport 1 police officer and 9 prisoners, have little protection but an efficient transport; if we transport 5 police officers and 5 prisoners (1/2) we have a protection optimal but we will need to do double of trips.
PID (Program IDentification)

They serve to identify in partnership numerical data to a channel. The PIDs more characteristic are PID Audio, PID Video and the SID (Service IDentification) that it points out the name of the service and the values of the PIDs in partnership.

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FEED INTRODUCTION
1) What are "feeds"?
2) Feed Archive
3) Requirement
4) Hunting?

SEARCHING METHODS
5) Direct insertion
6) Charts based search
7) Blind search

8) Feed in 4:2:2 format and encrypted
9) Conclusions