Rover ST2 - SPECTRUM MEASUREMENTS: SPECT

Brief description
Measurement start up
pag. 24
ST2 User’s Manual
TV Mode
5.0 SPECTRUM MEASUREMENTS: SPECT
The SPECT [5] key gives you access to the meter’s spectrum analysis measu-
rements.
When accessing this measurement mode, the meter automatically sets the
reference level in order to show all the detected carriers within the screen
display for the selected SPAN value.
• Select a Memory Plan (See section 1.0),
• Connect the antenna or TV outlet to the meter’s RF input [17],
• Press the SPECT [5] key,
• Use the SELECT [10] key to change the spectrum variable fi elds as shown in
fi g. 8.1: SPAN, channel or programme number, Frequency, Reference level.
The chosen fi eld will be highlighted with a dark background,
• Use the UP [7] and DOWN [9] keys to change the chosen fi eld,
• Press the SPECT [5] key again to enable the Max Hold feature (See par. 5.2).
With this feature the meter memorises the RF input signal’s maximum value,
this is shown as a profi le that overlaps the real time spectrum curve.
NOTES
• If you vary the channel or programme name, the spectrum marker moves to the selected carrier
centre frequency,
• If you vary the marker frequency, it will move gradually on the spectrum and the speed of this
displacement will automatically increase it you keep the UP [7] or DOWN [9] keys pressed,
• If you vary the displayed frequency, the channel or programme name will be replaced by hori-
zontal lines. This is because the correspondence between the frequency value and the transpon-
der or programme name is lost,
• If during the antenna alignment process, the spectrum displays a multiplex of an un-known Pro-
vider, it is possible to tune this multiplex by simply pressing the HELP [12] key (See section 17.0).