Wavetek 147 Specifiche Scaricare il pdf (Pagina 113)

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Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

the level, and then press Enter. Note the changes in the graph

as you adjust the values.

Fig. 4-19 The Reverse SWEEP Noise Level Screen

Press the Autoscale soft key to auto reference the level. This

automatically sets the scale to a convenient level for optimum

viewing in the center of the screen.

Press the Scale soft key to adjust the graph’s scaling. Use the

up and down diamond keys to scroll through the values

available (1, 2, 5, and 10 dB/div). Typically, 10 dB/div is

appropriate for viewing. Notice what happens to the display as

you change the scale factor. Note the changes to the display as

you change the values.

Press the Level Submenu icon to return to the main SWEEP

menu.

Reverse Noise Frequency Screen

From the screen shown in Fig. 4-20 you can set the start and stop

frequencies.

Use the Start Frequency icon to set the lower frequency limit.

Set the value with either the Alphanumeric keypad or the up

and down arrow keys. Save your setting by pressing the Enter

key.

Use the Stop Frequency icon to set the upper frequency limit.

Set the value with either the Alphanumeric keypad or the up

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Wavetek 147 Specifiche Pagina 113

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