Chapter 2 General Operation
Using the front panel
28 9102 Handheld Spectrum Analyzer Software version 5.31
Acoustical reaction on inputs
After entering a new parameter value, one of two acoustical alarms
may appear:
– Short beep (hint): The parameter is out of limits, or the input affects
an associated parameter; the respective parameter has been
corrected by the 9102 Handheld Spectrum Analyzer.
Example 1: An invalid stop frequency of 8 GHz has been entered,
resulting in a short beep and the maximum stop frequency being
set.
Example 2: The start frequency is set to 2 GHz, the stop frequency
is set to 4 GHz and the user enters a new span of 3 GHz. For units
without the frequency extension, this results in the start frequency
being changed to 1 GHz and a short beep to sound because the
new span would result in a stop frequency beyond the maximum of
4GHz.
– Long beep (error): A parameter is set to an invalid value and the
9102 Handheld Spectrum Analyzer resumes the old value,
sounding an error beep.
Example: After entering a new (invalid) attenuation value of 60 dB,
the 9102 Handheld Spectrum Analyzer sounds a long beep and
sets the attenuation back to the previous value.
Filling in a text input field Some input fields can be filled with alphanumerical text instead. The
numeric keys can then be used to enter characters. The keys may have
several letters or numbers assigned. The assignment of the keys in this
case is as follows:
Table 10 Keys for alphanumerical text entry
Key Assignment
00
1 1
2 A, B, C, 2
3 D, E, F, 3
4G, H, I, 4
5 J, K, L, 5
6M, N, O, 6
7 P, Q, R, S, 7
8T, U, V, 8
9 W, X, Y, Z, 9
. not assigned
± not assigned
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