Promax SATHUNTER, Руководство пользователя

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SATHUNTER USER’S MANUAL.
Page 18 09/2008
ATTENTION
The signal provider is the exclusive responsible in the accuracy of the orbital
position. PROMAX ELECTRONICA, S.A. only extracts and shows the information
contained in the detected signal.
At first, it could be that the equipment could not detect a signal with a valid
transport stream and therefore it will appear the or symbol at the top right
corner and the name of the test point memorised. If later on, the equipment achieves to
synchronize, it will update the services list and the colour of the symbol shown will
change to or .
4.2.3 Antenna Adjustment for Optimum Signal Quality (3> ADJUST)
Once the antenna has been positioned in order to receive the maximum power
and you have checked that the antenna is pointing the right satellite, the antenna and
the LNB have to be adjusted to achieve the maximum MER level, and therefore the best
quality at reception.
The adjustment (ADJUST) function shows the information regarding the signal
quality. You should select the 3> ADJUST function pressing the key [3]. When a
signal with a valid transport stream is detected, the SATHUNTER shows or at
the top right corner, depending on the type of the satellite signal. This function
measures the ratio between the DVB average power and the noise average in a
constellation (MER). It also measures the error rate in a DVB signal, before the
correction process (CBER). Once all the measurements are done (approximately after 5
s), they will be displayed on the screen in a graphical and alphanumerical way (see
figure 11). At the top line of the screen it keeps displaying the battery level, the
measured LNB voltage and whether the 22 kHz signal is present or not.
o
o
o
o
Battery state
Measured value of
the LNB voltage.
22 Khz signal
(activated).
POWER
measurement.
MER mesurement (Text
and graphical format).
CBER measurement
(Text and graphical
format).
Dete cti on p oin t.
(Memorized Satellite
name)
Measurement
function
Shows if Satellite
has been synchronized
(S + black background)
or not (S + white
background)
3)ADJUST
TP64 FR: 1396.0MHz
POWER: 74.7dBuV
MER: 10.5dB
8.9E-4 CBER:
0
E-6
15
E-1
S2
18
Figure 11.- Adjust function screen