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5790A
Operators Manual
The upper display shows the magnitude of the applied signal in volts (V) or millivolts
(mV). The lower display shows the frequency of the applied signal in Hz, kHz, or MHz.
When the input frequency is below 9 Hz, the frequency portion of the display is blank.
When the 5790A has not taken a measurement since power up, or an action such as an
input or range change has invalidated a measurement in progress, the display shows
dashes instead of numerals:
An overload is indicated by flashing display filled with the letter H:
An under-range input generates a flashing display filled with the letter L:
Measurements should not be taken as valid until the "U" (for unsettled) indicator goes
out. The unsettled indicator stays lit until the digital filter moving average window is full,
or until a measurement is complete if the digital filter is turned off.
4-16. Using the Measurement Control Menu
To access the Measurement Control Menu, press [UTIL MENUS] followed by the "Meas
Control" softkey. The menu appears as follows:
4-12
Table 4-6. Measurement Display Frequency Resolution
Frequency Range
9.00 to 119.99 Hz
0.1200 to 1.1999 kHz
1.200 to 11.999 kHz
12.00 to 119.99 kHz
0.1200 to 1.1999 MHz
1.200 to 11.999 MHz
12.00 to 30.00 MHz
Decimal Places Shown
2
4
3
4
4
3
2
mV
kHz
kHz
add7f.eps
add11f.eps
add12f.eps
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