SEARCHING METHODS
7) Blind search
Third and last method consists in a blind search
no based on parameter. You set only beginning and end of interval (i.e. 11270-12050 and
starts the scan. The DVB card (or decoder) will provide examine the interval
and, if find a signal automatically get out the 3 values freq./pol./sr.
Due
to users of this guide needs make a premise: Skystar 2 are not really the most proper tool for this search
type. First of all because only obsolete 2.3 model support Auto-Symbol Rate. And
more, also having 2.3 version, there are some limitations due to software problems. Probably if Technisat removed the AutoSR from new cards have motives
for this.
Professionals feed-hunter use expressly projected decoder for this use. Among these most known, for Blind Search
function, is surely
Fortec. Another Blind Search receiver that it now goes a lot of
is Clarke Tech.
Returning to the SS2, notice that the totality
of actual DVB softwares use for channels search , a trasponders *.ini list. Lacking these lists could
not perform the scanning. To discover if exist new frequencies non contained in our charts we can use the following methods:
CHANNEL MANAGEMENT
- The simplest method.
Right click on green/red icon on traybar and then on SETUP4PC.
- Choose
satellite where the dish is on and then click on "Channel Management..."
- Insert frequency interval inside which
you want search i.e. Initial = 10700 and Final = 12750
- Choose a step. You can leave also 5. A smaller step will effect more precise search but with extremely longer times.
- The SYMBOL Rate: this section is different according to your Skystar 2
model.
If you have 2.3
version, that have Symbol Rate automatic you can activate it
If you have 2.6 version you can choose maximum 3 SRs
at time i.e. 22000, 27500 and 6111
- Press button "Search & Scan"
At this point it will begin the search that, according to selected interval, can also
need more than an hour.
At the end of scan found frequencies are added to the left in the panel
Transponder Finder by BxS (LINK)
It's
an excellent freeware for frequencies search. It's in development phase and supports all Skystar 2
version. For 2.6 limit of the 3 imposed SRs from "Channel Management" is solved.
Only limit for 2.6 users: actual version allows only search with drivers Technisat 4.2.8
Both two previous softwares however have a serious bug that doesn't allow recognizing of low Symbol Rate frequencies (that characterizes greatest number of Feed and therefore it is rather important)
Sat BlindScan (LINK)
Recently
it was introduced a new software Sat BlindScan (from same author of Alt-Dvb) that has revolutionized feeds
search with Skystar. Unfortunately, if can boast be the only software able to recognize low SR, and have a
great scanning speed, from the other side introduces two big faults. First... the compatibility since it works only with Skystar 2.3, and
after impossibility to effect complete scannings, probably for a bug hardware.
Due to this defect you must select one only interval of SR for time to be sure to find all the frequencies.
This involves long times, for a complete
scan of whole satellite, .
Sat Blindscan has various options that allow
speed up search but, as we have already say, it takes the risk lose some channels.
For an optimal search is necessary have fortune, know how effect a selective search, know
how organize in group.
ADVANTAGES: Blind search is the most complete. And the only one that allows discover new frequencies without default charts or sites web.
DISADVANTAGES: Only Skystar 2.3
users can use this method with less problem.
Search times can result rather long.
It's necessary more passage since, once gotten the frequencies, it needs to save
it in a *.ini file and save it in a DVB program and perform channels search.
As the decoder doesn't do anything else than verify all the frequencies in which a percentage of signal is present
and "acceptable", gotten results don't make distinction among normal channels, feed, empty frequencies.
8/9
NEXT >>
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