Rover ST2 - SAT SPECTRUM MEASUREMENTS: SPECT

Brief description
Measurement start up
pag. 42
ST2 User’s Manual
Satellite Mode
16.0 SAT SPECTRUM MEASUREMENTS: SPECT
The SPECT key will access the meter’s spectrum analysis measurements.
when accessing this measurement mode, the meter will automatically set the
reference level in order to show all the detected carriers within the screen di-
splay for the selected SPAN value.
• Select a Memory Plan (Ref. section 12.0),
• Connect the LNB 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. 17.1: SPAN, transponder 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 in order to enable the Max Hold feature (Ref.
par. 16.2). With this feature the meter memorizes the RF input signal maximum
value, this will be shown as a trace that overlaps to the real time spectrum
curve.
NOTES
• Varying the transponder or programme name the spectrum marker moves to the selected carrier
centre frequency,
• Varying the marker frequency, this will move gradually on the spectrum, the speed of this displa-
cement will automatically increase just by keeping the UP [7] or DOWN [9] keys pressed,
• Varying the displayed frequency, the transponder or programme name will be replaced by hori-
zontal lines. This because the correspondence between the frequency value and the transponder
or programme name is lost,
• If during the dish alignment process, the Spectrum displays a transponder pattern of an un-
known Satellite it is possible to tune these carriers by simply pressing the HELP [12] key (Ref.
section 18.0).