Field Sweeping with the SDA-5000: Considerations for Sweep in the Field
87
4
Call up the level screen from the SWEEP screen (Fig. 4-10) by
pressing the soft key above the Frequency Submenu icon.
Press the soft key next to the Reference Level icon on the right
side of the display for manual reference level adjustment. Use
the up or down diamond keys, or the numeric keypad, to enter
the level, and then press Enter. Note the changes in the graph
as you adjust the values.
Fig. 4-17 The Reverse SWEEP 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. You can also perform
autoscaling by pressing the Function and Enter keys.
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). Notice what happens to the
display as you change the scale factor. The change takes effect
from the center of the screen.
Press the Level Submenu icon to return to the main SWEEP
menu.
Reverse Noise Screen
The noise screen enables you to check the noise levels in the headend while
you’re in the field. If noise is enabled in the headend, you can get to the main
noise screen (see Fig. 4-18), by pressing the Noise Enable soft key when
you’re running a reverse sweep.
To Next Page
Loading...
Need help?
General
