Spectrum Function - Promax 27 User Manual

At the bottom of the screen are shown the following options:
SPECTRUM [F1]:
SEARCH [F2]:
MODEM [F3]:
TILT [F4]:
LEVEL / CHAN /
SPAN [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.
4.2.3.4

SPECTRUM function

To access the SPECTRUM function:
1.- Press key
2.- Press softkey MODEM [F1].
3.- Press softkey SPECTRUM / SCAN [F3].
4.- Press softkey SPECTRUM [F1] (if coming from SPECTRUM screen).
The SPECTRUM function performs a spectrum graph at the highest resolution. By
this way, interferences can be detected, both in active channels and adjacent ones
(Figure 13.-).
Page 28
It leads to the SPECTRUM screen (refer to section
4.2.3.4).
It makes an exploration of all channels DOCSIS /
EuroDOCSIS presents at the frequency band of the
active channel plan (refer to section 4.2.3.2).
Returns to the main screen MODEM (refer to section
4.2.3).
Goes to TILT test (refer to section 4.2.3.6).
Pressing this key you can navigate among editable
parameters. To change them, use the Cursor keys or
the alphanumeric keypad as appropriate. It can be
edited the LEVEL, to change the margin of the power
on the vertical axis of the graph, CHANNEL, to change
the channel we are analysing; SPAN, to change the
frequency range shown on the horizontal axis of the
graph. Possible values are 10, 30, 100, 300 MHz and
MAX SPAN.
[13].
USER'S MANUAL. PROMAX-27
07/2008