USER’S MANUAL. US TV EXPLORER II
Page 54
01/2008
70
60
50
40
30
FREQ:
C/N REF:
43
CH:
SPAN:
32 MHz
650.00
MHz
16.5 dB
Figure 29
.- NOISE cursor.
C/N
(MANUAL).
When measuring channels in the satellite band or digital channels, to measure
the C/N ratio correctly, the bandwidth of the channel must be defined previously, using
the
Channel BW
option on the
Measurements Configuration
menu that appears
when pressing
[17] key.
IMPORTANT REMARK
In order to measure digital channel C/N ratio it is indispensable to tune channel at
its central frequency.
In the case of the presence of adjacent digital channels, these could mask the noise
level measurement.
5.14.6 Digital TV: Measuring the Power of Digital Channels
The
US TV EXPLORER II
measures digital channel power in the measurement
filter bandwidth and estimates total channel power assuming that spectral density is
uniform throughout channel bandwidth.
On selecting the
CHANNEL POWER
measurement mode, the screen displays
the following information:
Содержание US TV EXPLORER II
Страница 1: ...US TV EXPLORER II EXPLORADOR US DE TV EXPLORATEUR US DE TV 0 MI1526...
Страница 2: ......
Страница 4: ......
Страница 5: ...CONTENTS SUMARIO SOMMAIRE English manual Manual espa ol Manuel fran ais Fran ais English...
Страница 6: ......
Страница 18: ...USER S MANUAL US TV EXPLORER II Page 10 01 2008...
Страница 22: ...USER S MANUAL US TV EXPLORER II Page 14 01 2008...
Страница 28: ...USER S MANUAL US TV EXPLORER II Page 20 01 2008...
Страница 92: ......
Страница 104: ...MANUAL DE INSTRUCCIONES US TV EXPLORER II P gina 10 01 2008...
Страница 108: ...MANUAL DE INSTRUCCIONES US TV EXPLORER II P gina 14 01 2008...
Страница 114: ...MANUAL DE INSTRUCCIONES US TV EXPLORER II P gina 20 01 2008...
Страница 180: ......
Страница 192: ...MANUEL D UTILISATION US TV EXPLORER II Page 10 01 2008...
Страница 196: ...MANUEL D UTILISATION US TV EXPLORER II Page 14 01 2008...
Страница 202: ...MANUEL D UTILISATION US TV EXPLORER II Page 20 01 2008...
Страница 264: ...MANUEL D UTILISATION US TV EXPLORER II Page 82 01 2008...
Страница 268: ......