AIRSCOUT SPECTRUM
Tempo Communications Inc.
1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155
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2.9 Power In Band
The POWER IN BAND menu allows measuring the input power in a specified bandwidth BW i.e. over a range of
frequencies, with a center frequency CENTER specified at this menu.
POWER IN BAND feature also can be used to measure the channel width or channel separation
by adjusting the BW to fit.
MARKER and POWER IN BAND cannot be activated both at the same time.
Tapping the SET TO CENTER button centers POWER IN BAND on the CENTER frequency of the currently selected SPAN.
To increase the accuracy of input power level measurements, select DETECTOR: AVG and
one of the AVERAGE traces at the
TRACE
menu.
The currently selected parameter (BW/ CENTER) is displayed in white. The color of the keypad buttons shows which
numbers can be entered at the current digit position to obtain a valid parameter value – the numbers on the
green
buttons can
be entered, the numbers on the
red
buttons cannot be entered. If the currently entered value is valid, it is displayed in green
(also OK button is
green
). If the value is not valid, it is displayed in
red
(also OK button is
red
). To confirm a valid value, tap the
OK button or tap the selected parameter’s box.
The BW of POWER IN BAND cannot be narrower than the currently selected RBW (see
RBW & VBW
).
The frequency value can be entered with a precision of 0.01 MHz (10 kHz) by using the “.” on the keypad. To input
a value with decimal digits, first enter the full MHz’s, then tap the “.” button and enter the rest of the digits. Until the value is
confirmed, the digits after the point are displayed larger. If there are no digits displayed after the point, it means that they are
zeroes.
While in the POWER IN BAND menu, tapping the graph will place the POWER IN BAND area there.
POWER IN BAND area can be moved also by dragging it.
If the POWER IN BAND area frequency is outside of the currently displayed frequency range, arrows
on the graph will indicate beyond which side of the graph the POWER IN BAND area is positioned.
To exit the POWER IN BAND menu and return to the main screen, tap BACK. When POWER IN BAND is enabled, the
POWER IN BAND button is
green
on the main screen. Tapping the POWER IN BAND button when it is active, disables the
POWER IN BAND. POWER IN BAND is disabled by default.
