emitor Satlook Digital NIT, Руководство пользователя

Страница: 10 / 21

A locked frequency can look like this:
The window also displays the following Digital readout:
Freq:
The tuned in frequency.
AFC: Automatic frequency control -the instrument automatically adjust the
frequency and tells the offset frequency from center of carrier.
SR: Symbol rate. The instrument readout, automatically, the correct symbol
rate of the transmission.
FEC: Forward Error Correction. The instrument readout, automatically, the
correct FEC.
CB: Corrected Bits –Bits that have been corrected in Viterbi.
Should be as low as possible.
UCB: Uncorrected Blocks – Blocks unable to be repaired. Value should be zero.
Very small numbers of uncorrected block will result in loss of picture
(mosaic).
3.2.1. NIT - Network Information Table
The word "searching" will lit on right handside of the picture as soon as a digital
transponder is found. After about 5-10 seconds, if the satellite is transmitting NIT, the
satellite position will appear (and in some cases the satellite name also), for ex Astra
19.2. Pressing button nr 4 "Channels" will show a list of the present TV- and Radio
channels on that certain transponder/frequency.
10