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Chapter 2 Operating Your Frequency Counter
Offsetting a Frequency Measurement
Operating Guide 2-21
2
Offsetting a Frequency Measurement
You can use the Frequency Offset (Freq Offset) function to add or subtract
a constant value to/from a frequency measurement. For example, you can
use an offset to compensate for a systematic error or to display the
difference in frequency between two signals.
To display an offset frequency measurement, you need to set the value and
sign (+/–) of the offset and to turn the Frequency Offset function on. In the
following example, the Frequency Offset function is enabled first, and the
offset value is then entered. However, the order doesn’t matter, so you can
also enter the offset value first, and then turn the offset function on.
Frequency Offset Example
1 Connect a cable from the 10 MHz reference output on the back
panel to the Channel 1 input connector, and press the Chan Select
key (if necessary) to activate Channel 1.
The display should look like this:
2Press the Shift key, and then press the Freq Offset (Rate) key.
The Shift annunciator activates when you press the Shift key. When you
press the Freq Offset key, the Shift annunciator disappears, and the Freq
Offset annunciator at the left side of the display activates.
GHz
MHz
kHz
Hz
Ch 1
Rel
Rel
Freq