Sweep Type Menu

The following softkeys are located within the sweep type menu. Among them are the five sweep types available.

, ~~~~~~~~.~ flows list frequencies to be entered or mo&fied using the e&t list menu md e&t

..;

,....

d

..ss

:::

,...... /_.i

..,,,..........~

~.~

~..~~~

 

subsweep menu

The following sweep types will function with the interpolated error-correction feature (described later):

nlinear frequency

npower sweep

nCWtime

‘I’he following sweep types will not function with the interpolated error correction feature (described later):

nlogarithmic frequency sweep

nlist frequency sweep

Linear Frequency Sweep (Hz) ~~<~;;‘;;;;;;................;;:~<,.,.,...,.i;.;.,,.i.,., :::::.

The ~~~~~~ softkey activates a linear frequency sweep that is displayed on a standard graticule with ten equal horizontal divisions. This is the preset default sweep type.

For a linear sweep, sweep time is combined with the channel’s frequency span to compute a source sweep rate:

sweep rate = (frequency span) / (sweep time)

Since the sweep time may be affected by various factors, the equation provided here is merely an indication of the ideal (fastest) sweep rate. If the user-specified sweep time is greater than 15 ms times the number of points, the sweep changes from a continuous ramp sweep

to a stepped CW sweep. Also, for 10 Hz or 30 Hz IF bandwidths, the sweep is automatically converted to a stepped CW sweep.

In the linear frequency sweep mode it is possible, with Option 010, to transform the data for time domain measurements using the inverse Fourier transform technique.

6-22 Applisation and Operation Concepts

Page 303
Image 303
HP 8753E manual Sweep Type Menu