UNAOHM EP2500, Руководство пользователя

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UNAOHM
34
EP2500 (Rev. 0)
7.20.1 How to Carry Out an Acquisition
1. Enter the Data Logger function by pressing
DATA (19)
.
2.
UP
or
DOWN
. Set to ACQUIRE. Press
ENTER
.
3. Select the acquisition number via the alphanumerical keypad or the Shaft Encoder.
4. Press
ENTER
to start an acquisition.
5. Press
EXIT
to leave the menu completely and return to normal operation.
7.20.2 Definition of Measurements and Parameters to Acquire
To set the measurements that an acquisition cycle will take, proceed as follows:
1.
Enter the Data Logger function pressing
DATA (19)
.
2.
UP
or
DOWN
. Select PLAN TO LOG, press
↵
(21)
.
3.
UP
or
DOWN
. Select the measuring location to set, from 0 to 99.
4. (23). Mark the field to modify.
The fields to set are as follows:
•
S: It is the measurement position status. Press
ENTER
to engage or disengage the
position being modified: an asterisk will appear to indicate the position is active, an empty
field will appear to indicate the position is inactive.
•
PR: It is the program associated to the measurement position. Use
UP
or
DOWN
to
select the desired program number.
•
C/N: Carrier-to-Noise ratio. Press
ENTER
to engage or disengage the parameter during
acquisition (an asterisk will appear to indicate the parameter is active).
•
VA: Video-to-Audio ratio. Ratio between Video and stereo Audio of analogue terrestrial
channels. Press
ENTER
to engage or disengage the parameter during acquisition (an asterisk
will appear to indicate the parameter is active).
•
BER: Bit Error Rate (digital channels only). Press
ENTER
to engage or disengage the
parameter during acquisition (an asterisk will appear to indicate the parameter is active).
•
MER: Modulation Error Ratio (digital channels only). Press
ENTER
to engage or
disengage the parameter during acquisition (an asterisk will appear to indicate the parameter
is active).
The fields which can not be set are:
•
POS: Indicates position of the measurement.
•
MODE: Indicates the type of program associated to the position of the measurement. The
following modes are possible: TER (analogue terrestrial), OFDM, QAM, SAT (analogue
satellite), QPSK.
Repeat operations from 3 to 4 for the rest of the measuring positions.
7.20.3 Inspection of the Stored Measurements
1. Enter the Data Logger function pressing
DATA (19)
.
2.
UP
or
DOWN
. Position to LOGGED DATA and press
ENTER
. The displayed data against the
measurements carried out are shown.
3. To select the acquisition to recall on the display:
•
Mark “LOG”;
•
Press
ENTER
.
•
Scroll acquisitions via
UP
or
DOWN
.
•
Confirm by pressing
ENTER
.
4. To scroll the data use
UP
or
DOWN
. If an acquisition called for a number of programs higher than
those that may be simultaneously displayed on the screen,
•
“MORE” appears on the upper right side;