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USER'S MANUAL. PROMAX-27
4.2.3.6
TILT function
To access the TILT function:
1.- Press key
2.- Press softkey MODEM [F1].
3.- Press softkey SPECTRUM / SCAN [F3].
4.- Press softkey SCAN [F3] (if coming from SPECTRUM screen).
5.- Press softkey TILT [F4].
The TILT test is a utility to equalize the line. Typically, CATV networks transmit
two pilot signals at the beginning and at the end of the band. These two pilots are the
ones that can be tuned simultaneously on the screen. By this way you can evaluate the
losses slope and therefore readjust equalizers of amplifiers in order to compensate
these losses and ensure a flat response across the band.
At the bottom of the screen (Figure 17.-) you will see next options:
BACK [F1]:
PILOT 1 / PILOT 2 [F2]:
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
07/2008
[13].
TILT MEASUREMENT
70
65
60
55
50
45
40
35
30
5.00
862.00
BACK
Figure 17.- TILT Screen
To return to the previous menu.
Pressing this key you can navigate among editable
parameters. To change them, use the Cursor keys or
the alphanumeric keypad as appropriate. PILOT 1, is
used to define the first reference frequency, PILOT 2, is
used to define the second reference frequency. If using
Cursor keys to define the frequency, it will be by steps
selected in STEP FREQUENCY (see paragraph 4.2.2).
If using alphanumeric keypad, press SELECT to save
values and finish.
01:43:09
P1:
97.90
MHz
65 dBuV
P2: 860.00 MHz
60 dBuV
+5
TILT
dB
-0.01 dB/MHz
P2
Page 33
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