Tv Digital Mode - Promax 27 User Manual

4.2.5.1

TV DIGITAL mode

To access this measurement mode from TV mode, press [F1] until you see at the
top of the screen "DIGITAL TV POWER METER" (Figure 23.-).
Measures on the screen are:
PWR:
C/N:
NOISE
FREQUENCY:
FR:
CA:
BW:
At the bottom of the screen you will see next options:
MNS / DIGITAL /
ANALOG [F1]:
IQ [F2]:
SPECTRUM / SCAN [F3]:
LOGGER [F4]:
Page 44
DIGITAL TV POWER METER
FR: MHz
CH: C31/CCIR
BW: 7.00 MHz
NOISE FREQUENCY: 451.00 MHz
34 44 54 64 74 84
ANALOG IQ SPECTRUM
Figure 23.- Digital TV measurement screen
Power received from the signal.
Carrier / Noise Ratio.
Noise frequency.
Channel tuned frequency.
Channel and plan channel.
Bandwidth.
Changes among the three TV measurement modes.
It shows a Constellation Diagram for the digital signal in
the whole range of measurement (refer to section
4.2.5.1.1) (for details see appendix B 'Principle of QAM
Modulation. The Constellation Diagram').
It leads to SPECTRUM mode (refer to section 4.2.5.4.2)
/ SCAN mode (refer to section 4.2.5.4.1).
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 4.2.5.4.3).
USER'S MANUAL. PROMAX-27
01:43:09
88 12
PWR C/N
dBuV dB
94 104 114 124 134
LOGGER CHAN
07/2008