Constellation Diagram (Iq) - Promax 27 User Manual

Cable tv & data analyzer
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USER'S MANUAL. PROMAX-27
-
BW:
-
MOD:
-
SR:
At the bottom of the screen are displayed the following options:
IP NETWORK [F1]:
DOWN / IQ [F2]:
SPECTRUM / SCAN [F3]:
REGISTER [F4]:
FREQ / BW / CHAN [F5]:
NOTE:
Access to the function SCAN / SPECTRUM switches depending on the type of
tuning you are doing.
In case you are tuning a signal using frequency, it will be displayed the
SPECTRUM function first.
In case you are tuning a signal using the predefined channels from the channel
plan, it will be displayed the SCAN function first.
4.2.3.1

CONSTELLATION DIAGRAM (IQ)

To access the IQ (Constellation Diagram) function;
1.- Press key
2.- Press softkey MODEM [F1].
3.- Press softkey IQ [F2].
07/2008
Bandwidth.
Modulation.
Symbol Rate.
It reports about data network (refer to section 4.2.4).
Pressing this key you can switch between downstream
data report
and downstream constellation (refer to
section 4.2.3.1).
Goes to SPECTRUM function (refer to section 4.2.3.4) /
SCAN function (refer to section 4.2.3.3).
Through this function you can store measurements in
the memory of the instrument for later viewing, printing
or transfer to a PC (refer to section 4.2.3.5).
Pressing this key you can navigate among editable
parameters. To edit a value use the Cursor keys or the
alphanumeric keypad, as appropriate. In this case you
can edit: FREQ, is the frequency of the tuned channel;
BW, is the bandwidth; CHANNEL, is the name of the
tuned channel. By this way you can change the tuned
channel and measure other signals.
[13].
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