Key Reference
F
Chapter 5 153
Freq Offset
Supported All
This softkey enables you to set a value for frequency offset. For example, if the current
output frequency is 1.0 MHz and you enter a frequency offset of 3.0 MHz, the output
frequency will remain at 1.0 MHz but the display will show a frequency of 4.0 MHz. This
feature enables you to simulate the frequency at the output of a frequency translating
device. When an offset has been entered, the OFFSET indicator is turned on in the
frequency area of the display.
Preset 0.00 Hz
Range 20 GHz Models: 0HZ–20GHZ
40 GHz Models: 0HZ–40GHZ
Location Page 239
Remarks A frequency offset can be entered at any time during normal operation
and also when you are operating in frequency reference mode. When
and offset has been entered, the OFFS indicator is turned on in the
frequency area of the display.
A frequency offset changes the value shown in the frequency area of
the display but does not affect the output frequency.
Freq Ref Off On
Supported All
This softkey toggles the operating state of the frequency reference mode. When
frequency reference mode is turned on, the frequency value displayed is equal to the
current hardware output frequency minus the reference value set by the
Freq Ref Set
softkey. All frequency parameters will now be set as relative to the reference value.
Frequency offsets can be used with frequency reference mode. In this situation, the
display will show the frequency calculated as the current hardware output frequency
minus the reference value plus the frequency offset.
Preset Off
Choices Off or On
Location Page 239
Remarks Frequency reference mode only changes the display; it does not change
the RF output frequency.
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