UNAOHM
EP2500 (Rev. 0)
27
Figure 10
Spectrum expansion display
7.15
MEASUREMENT FUNCTION
To select the measurement function press
MEA
.
The following will appear on the screen (see Figure 11 ):
•
On top, an analogue level measurement bar, on a 30 dB scale.
•
A TV picture on the part of the screen which is free of readings, if tuned to an active channel and the
TV demodulator is engaged.
NOTE:
Depending on the type of video demodulator used, if there is no signal or the channel is
mistuned, even quite evident vertical ripples may appear on the screen.
In measurement mode:
-The upper box in the middle of the
OSD
display
indicates
•
The level, normally in dB
µ
V or in dBm, dBmV or V by means of the utility routines (see section 8).
-The lower box in the middle of the
OSD
display
indicates:
•
The marker frequency.
•
The channel number related to the marker frequency, if present.
•
The program.
•
The engaged attenuation.
•
The 22kHz tone engaged.
•
The set LNB voltage.
•
Video polarity (SAT band only).
The type of demodulator selected and the measurement bandwidth are shown on the multifunction keys
(4)
.
Expanded
1740 SPAN 0 pr 00
MORE 13V 22k C M 20
BW W
MEA
SPECT
SPAN
50.5 dBuV
