Span Control State - DEVA Broadcast DB7000 Maintenance And Operating Instructions

Span control state:

SB1, SB2 and Arrow buttons control the Span of the data plot. Depending on the Span control
state the Soft buttons have different usage.
– (SB1) cycles through available span values for X axis of the data plot. The
possible values vary between 3 and 21 MHz in 1 MHz increments. Note that changing X span may
also change the center frequency in order to keep data plot in bounds. When a key is pressed next
span value will be selected and displayed on the screen.
– (SB1) cycles through available span values for Y axis of the data plot. The
possible values are 30, 60, 90, and 120 dBμV. Note that in order to keep the data plot in bounds
changing Y span may also change the Y reference. When the button is pressed new value will be
selected and displayed on the screen.
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com
5MHz X span is selected
120 dBμV Y span is selected
- 34 -
Tel: +359 56 820027, Fax: +359 56 836700