Fluke 6060B Instruction Manual page 43

INSTALLATION AND OPERATION
Notes
1 . This operation does not change the Generator output unless the corresponding
2. Uncalibrated if peak amplitude exceeds + 1 3 dBm or if AM depth exceeds 90%
3. float equals floating-point number.
4. Uncalibrated if F M is enabled and F M deviation is below 100 Hz or above
5 . Toggles between 400 or 1 000 Hz only. A n indicator shows selected rate only if
6. "0" selects a modulation rate of 40 0 Hz; "1" selects 1000 Hz.
7.
8. Two indicators 'EXT HI' and 'EXT LO' are lit when external modulation is on
9. "0" turns the modulation source off; "1" turns it on.
Related Operations
Bright-Digit Edit Entry
Step Entry
2·28.
The following paragraphs describe how to change frequency and amplitude using the
Relative mode. There are two steps:
1 . Setting the reference
2. Changing the parameter relative to that reference
Setting the reference is done by setting the parameter to the desired value and then
enabling the relative mode for that parameter. This causes the 'REL' indicator to light
and the displayed value to be zero in the corresponding display. The Generator output
does not change during these operations. In the relative mode, the usual means of
changing the parameter may be used; i.e., FUNCTION-DATA-UNIT, Step, or Bright­
Digit Edit Entry.
In the relative frequency mode, the actual frequency is the sum of the reference and the
displayed frequency. The actual frequency may be displayed by pressing the [FREQ) key.
In the relative amplitude mode, the actual amplitude is the sum of the reference and the
displayed amplitude when the reference and the displayed quantities have the same units.
However, with mixed units (volts and dB), the actual amplitude is the voltage value scaled
by the dB value. The actual amplitude may be displayed by pressing the [AMPL] key.
2-22
modulation is enabled.
and AM is enabled.
(frequency -100 kHz)/3.
internal modulation is on.
These are ONj OFF operations; any combination
to indicate that the external modulation signal is 2% above or 2% below the
nominal I V peak input requirement.
Relative Function
allowed.
is
I